A heat treatment device with an internal circulation fan heat dissipation structure

Abstract

The present application relates to a heat treatment device with an internal circulation fan heat dissipation structure, which arranges a heat dissipation component on the rotating shaft of the hot air circulation component to prevent the high temperature in the quenching furnace from being transmitted to the driving part and causing damage to the driving part. The rotating shaft is subjected to secondary heat dissipation by using a first heat dissipation unit and a second heat dissipation unit arranged outside the quenching furnace, thereby reducing the temperature transmitted from the rotating shaft to the driving part, avoiding damage to the driving part due to high temperature, extending the service life of the driving part, and thus reducing production costs.

Description

Technical Field

[0001] The utility model relates to heat treatment equipment with an internal circulation fan heat dissipation structure, belonging to the technical field of heat treatment equipment. Background Art

[0002] Many metal parts, such as hardware parts, auto parts, tools, etc., need to be quenched to increase their surface hardness, so as to improve their wear resistance and contact strength to meet their respective design requirements. To achieve the above purpose, a quenching furnace is usually used. In the prior art, the quenching process includes the following steps: the processed metal parts are loaded into a feed box, and then conveyed into the quenching furnace through a conveying component. The processed metal parts are heated while being conveyed in the quenching furnace until the processed metal parts are heated to a predetermined temperature, and then enter the oil tank for quenching treatment, and then conveyed to the lower process through the oil tank conveying component.

[0003] Existing quenching furnaces are basically equipped with hot air circulation components to drive the air flow in the furnace to accelerate the convection speed and thus ensure the uniformity of the furnace temperature. In actual use, the high temperature in the furnace will be transmitted to the driving parts, causing the driving parts to be overheated and damaged, resulting in a short service life of the hot air circulation components and high costs. Utility Model Content

[0004] The purpose of the utility model is to provide a heat treatment equipment with an internal circulation fan heat dissipation structure, which can cool the hot air circulation component to prevent the high temperature in the furnace from being transmitted to the driving part and causing damage to the driving part, which is beneficial to prolonging the service life of the hot air circulation component and reducing costs.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a heat treatment device with an internal circulation fan heat dissipation structure, comprising:

[0006] A furnace body, comprising a feeding section and a quenching furnace connected to the feeding section;

[0007] A hot air circulation assembly, comprising a driving member arranged outside the quenching furnace, a rotating shaft penetrating the quenching furnace, and a fan blade connected to the rotating shaft in the quenching furnace, wherein the driving member drives the rotating shaft to rotate so as to drive the fan blade to rotate in the quenching furnace;

[0008] The heat dissipation assembly is arranged on the top of the quenching furnace, and comprises a first heat dissipation unit arranged on the quenching furnace and a second heat dissipation unit arranged on the rotating shaft.

[0009] Furthermore, the first heat dissipation unit includes a heat dissipation groove formed on the outer wall of the quenching furnace and a breathable plate covering the heat dissipation groove.

[0010] Furthermore, the second heat dissipation unit includes a shell sleeved on the rotating shaft and a heat exchange medium filled in the shell.

[0011] Furthermore, the heat exchange medium is heat dissipating grease.

[0012] Furthermore, the shell is provided with an inlet and an outlet, the inlet and the outlet are externally connected to a heat exchange component, the heat exchange component includes a power pump and a heat source, and the power pump drives the heat exchange medium to flow between the heat source and the shell.

[0013] Furthermore, a heat insulation component is also provided on the rotating shaft, and the heat insulation component is arranged in the quenching furnace and blocks the heat dissipation groove.

[0014] Furthermore, the thermal insulation component includes a fixed grid and thermal insulation cotton arranged in the fixed grid.

[0015] Furthermore, a transmission unit is arranged between the driving member and the rotating shaft, and the transmission unit includes a driving wheel arranged on the driving member, a driven wheel arranged on the rotating shaft, and a transmission member connected to the driving wheel and the driven wheel.

[0016] Furthermore, the transmission member is any one of a flat belt, a V-belt and a synchronous belt.

[0017] Furthermore, the transmission member is a transmission chain.

[0018] The beneficial effect of the utility model is that: the present application arranges a heat dissipation component on the rotating shaft of the hot air circulation component to prevent the high temperature in the quenching furnace from being transmitted to the driving member and causing damage to the driving member, and utilizes the first heat dissipation unit and the second heat dissipation unit arranged outside the quenching furnace to perform secondary heat dissipation on the rotating shaft, thereby reducing the temperature transmitted from the rotating shaft to the driving member, avoiding damage to the driving member due to high temperature, extending the service life of the driving member, and thereby reducing production costs.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the internal structure of a heat treatment device with an internal circulation fan heat dissipation structure shown in one embodiment of the present application.

[0021] Figure 2 for Figure 1 Structural diagram of the heat dissipation structure in DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "axial", "radial", "circumferential", 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, rather than indicating or implying 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.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, in the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] Please refer to Figure 1 to Figure 2 A heat treatment device with an internal circulation fan heat dissipation structure shown in an embodiment of the present application includes a furnace body, a hot air circulation component 20 and a heat dissipation component 30.

[0028] The furnace body includes a loading section (not shown) and a quenching furnace 10 connected to the loading section. The loading section is an automatic loading mechanism, which is connected to the quenching furnace 10 to transfer the workpiece to the conveyor belt of the quenching furnace 10. Then, driven by the conveyor belt, the workpiece is transferred in the furnace of the quenching furnace 10 and heated at the same time, until the processed metal piece is heated to a predetermined temperature and then transferred out of the furnace of the quenching furnace 10 for the next step. This is a prior art and will not be described in detail here.

[0029] The hot air circulation assembly 20 includes a driving member 21 arranged outside the quenching furnace 10, a rotating shaft 23 penetrating the quenching furnace 10, and a fan blade 24 connected to the rotating shaft 23 in the quenching furnace 10. The driving member 21 drives the rotating shaft 23 to rotate to drive the fan blade 24 to rotate in the quenching furnace 10. The driving member 21 is a motor, which drives the rotating shaft 23 to rotate to drive the fan blade 24 to rotate in the quenching furnace 10, so that the air in the furnace flows to accelerate the convection speed and ensure the uniformity of the furnace temperature.

[0030] The heat dissipation assembly 30 is disposed on the top of the quenching furnace 10 , and the heat dissipation assembly 30 includes a first heat dissipation unit 32 disposed on the quenching furnace 10 and a second heat dissipation unit 31 disposed on the rotating shaft 23 .

[0031] In this embodiment, the first heat dissipation unit 32 includes a heat dissipation groove formed on the outer wall of the quenching furnace 10 and a breathable plate covering the heat dissipation groove. The heat dissipation groove is provided on the outer wall of the quenching furnace 10, and the rotating shaft 23 is inserted into the quenching furnace 10 through the heat dissipation groove. By increasing the contact area between the end of the rotating shaft 23 outside the quenching furnace 10 and the air, the temperature of the rotating shaft 23 is reduced. At the same time, a breathable plate with a hole is provided on the heat dissipation groove to prevent the accumulation of debris in the heat dissipation groove and facilitate the air circulation between the heat dissipation groove and the outside.

[0032] In this embodiment, the second heat dissipation unit 31 includes a shell sleeved on the rotating shaft 23 and a heat exchange medium filled in the shell. The shell is sleeved on the rotating shaft 23 and both ends are sealed and connected to the rotating shaft 23. An oil filling hole is opened on the shell, and the heat exchange medium is filled into the shell through the oil filling hole. The heat exchange medium exchanges heat with the rotating shaft 23, thereby reducing the temperature of the rotating shaft 23, and then reducing the temperature transmitted from the rotating shaft 23 to the motor.

[0033] In this embodiment, the heat exchange medium is heat dissipation grease, which has excellent insulation and heat dissipation properties, is stable in nature, has a long service life, and has good lubrication and dispersion properties, which is conducive to the smooth operation of the shaft 23 and is highly practical.

[0034] In another embodiment, an inlet end and an outlet end are provided on the shell, and a heat exchange component is externally connected to the inlet end and the outlet end. The heat exchange component includes a power pump and a heat dissipation source. The power pump drives the heat exchange medium to flow between the heat dissipation source and the shell. The heat dissipation medium can be a liquid that is easy to flow, such as water and heat dissipation oil. A double-layer space is arranged in the shell. Heat dissipation grease is arranged in the inner space to contact the rotating shaft 23. The outer space is connected to the inlet end and the outlet end respectively. The heat exchange medium is driven by the power pump to flow and exchange heat with the rotating shaft 23. Specifically, the heat of the rotating shaft 23 is transferred to the heat dissipation grease, and then transferred to the heat exchange medium through the partition wall of the two-layer space, thereby realizing the circulation cooling of the rotating shaft 23, improving the cooling effect, and ensuring the safe use of the motor.

[0035] In this embodiment, a heat insulation component 40 is also provided on the rotating shaft 23, and the heat insulation component 40 is provided in the quenching furnace 10 and blocks the heat dissipation groove. By providing the heat insulation component 40 in the quenching furnace 10, the heat insulation component 40 is arranged around the heat dissipation groove to reduce heat loss in the quenching furnace 10.

[0036] In this embodiment, the heat insulation component 40 includes a fixed grid and heat insulation cotton arranged in the fixed grid. The heat insulation component 40 is formed by fixing the heat insulation cotton by the fixed grid, so that the heat insulation component 40 and the rotating shaft 23 are easily interference-fitted, thereby avoiding a large gap between the heat insulation component 40 and the rotating shaft 23 due to the maintenance and replacement of the hot air circulation component 20, which leads to a large loss of heat in the quenching furnace 10.

[0037] In this embodiment, a transmission unit 22 is provided between the driving member 21 and the rotating shaft 23, and the transmission unit 22 includes a driving wheel 221 provided on the driving member 21, a driven wheel 222 provided on the rotating shaft 23, and a transmission member 223 connected to the driving wheel 221 and the driven wheel 222. By providing the transmission unit 22, direct contact between the motor output shaft and the rotating shaft 23 can be avoided, and the influence of high temperature on the motor can be further reduced.

[0038] In this embodiment, the transmission member 223 is any one of a flat belt, a V-belt and a synchronous belt. The transmission is carried out by the belt, and since the heat conduction of the belt is slow, the speed at which the high temperature is conducted from the driven wheel 222 to the driving wheel 221 and then to the motor can be reduced, thereby preventing the motor from overheating during use.

[0039] In another embodiment, the transmission member 223 is a transmission chain, and the rotation stability can be ensured by the rotation of the chain, thereby avoiding transmission failure caused by deformation of the transmission member 223 due to high temperature.

[0040] The present application arranges a heat dissipation component on the rotating shaft of the hot air circulation component to prevent the high temperature in the quenching furnace from being transmitted to the driving member and causing damage to the driving member. A first heat dissipation unit and a second heat dissipation unit arranged outside the quenching furnace are used to perform secondary heat dissipation on the rotating shaft, thereby reducing the temperature transmitted from the rotating shaft to the driving member, preventing the driving member from being damaged by high temperature, extending the service life of the driving member, and thereby reducing production costs.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heat treatment equipment with an internal circulation fan heat dissipation structure, characterized in that: include: A furnace body, comprising a feeding section and a quenching furnace connected to the feeding section; A hot air circulation assembly, comprising a driving member arranged outside the quenching furnace, a rotating shaft penetrating the quenching furnace, and a fan blade connected to the rotating shaft in the quenching furnace, wherein the driving member drives the rotating shaft to rotate so as to drive the fan blade to rotate in the quenching furnace; The heat dissipation assembly is arranged on the top of the quenching furnace, and comprises a first heat dissipation unit arranged on the quenching furnace and a second heat dissipation unit arranged on the rotating shaft.

2. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 1, characterized in that: The first heat dissipation unit includes a heat dissipation groove formed on the outer wall of the quenching furnace and a breathable plate covering the heat dissipation groove.

3. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 1, characterized in that: The second heat dissipation unit includes a shell sleeved on the rotating shaft and a heat exchange medium filled in the shell.

4. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 3, characterized in that: The heat exchange medium is heat dissipation grease.

5. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 3, characterized in that: The shell is provided with an inlet end and an outlet end, and the inlet end and the outlet end are externally connected to a heat exchange component, and the heat exchange component includes a power pump and a heat dissipation source, and the power pump drives the heat exchange medium to flow between the heat dissipation source and the shell.

6. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 2, characterized in that: A heat insulation component is also provided on the rotating shaft, and the heat insulation component is arranged in the quenching furnace and blocks the heat dissipation groove.

7. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 6, characterized in that: The heat insulation component comprises a fixed grid and heat insulation cotton arranged in the fixed grid.

8. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 1, characterized in that: A transmission unit is arranged between the driving member and the rotating shaft, and the transmission unit comprises a driving wheel arranged on the driving member, a driven wheel arranged on the rotating shaft, and a transmission member connected to the driving wheel and the driven wheel.

9. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 8, characterized in that: The transmission member is any one of a flat belt, a V-belt and a synchronous belt.

10. The heat treatment equipment with an internal circulation fan heat dissipation structure according to claim 8, characterized in that: The transmission member is a transmission chain.

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