A kind of oven structure

Abstract

The utility model discloses an oven structure, including an outer box, an inner box located in the outer box, a driving motor arranged on the outer box, a volute located in the inner box, and an impeller located in the volute, the rotating shaft of the driving motor passes through the inner box and the volute and is connected to the impeller, and a connecting bracket is provided on the outer box, and the connecting bracket passes through the inner box and is connected to the volute. The driving motor of the utility model is installed on the outer box, the impeller is connected to the rotating shaft of the driving motor, and the volute is installed on the outer box through the connecting bracket, so that the impeller, the volute and the rotating shaft and other components are installed on the same reference, and the deformation of the inner box at high temperature will not cause the volute and the impeller to shift, thereby preventing scratches between components, and the structure is simple and reasonable.

Description

Technical Field

[0001] The utility model relates to the field of food and medicine packaging machinery and equipment, in particular to an oven structure. Background Art

[0002] The preheating section, high temperature section and cooling section of the tunnel oven usually need to be equipped with fans to realize the circulation of hot and cold air inside the box. At present, the volute of the fan is generally fixed to the inner box through a fixing column, and the drive motor of the fan is installed on the outer box. In this way, the impeller of the fan may not be concentric with the drive motor shaft during installation. The air guide ring is fixed on the volute. Since the volute and the impeller are not installed on the same basis, the inner box deforms under the action of high temperature, causing the volute to deform, the impeller and the air guide ring to rub against each other, and the motor shaft and the installation part of the volute may also rub against each other. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an oven structure with a simple structure which is conducive to preventing scratches between components.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An oven structure comprises an outer box, an inner box located in the outer box, a driving motor arranged on the outer box, a volute located in the inner box and an impeller located in the volute, wherein the rotating shaft of the driving motor passes through the inner box and the volute and is connected to the impeller, and a connecting bracket is provided on the outer box, and the connecting bracket passes through the inner box and is connected to the volute.

[0006] As a further improvement of the above technical solution: a plurality of flexible connectors are provided between the outer box body and the inner box body, and the connecting bracket and the rotating shaft are passed through the flexible connectors.

[0007] As a further improvement of the above technical solution: the flexible connecting member is a bellows, one end of the bellows is welded to the outer box body, and the other end of the bellows is welded to the inner box body.

[0008] As a further improvement of the above technical solution: a motor mounting seat is provided on the outer box body, and the driving motor and the connecting bracket are arranged on two sides of the motor mounting seat relatively.

[0009] As a further improvement of the above technical solution: the volute is arranged on a volute mounting seat, and the volute mounting seat is connected to the connecting bracket.

[0010] As a further improvement of the above technical solution: an air guide ring is provided on the volute, and the air guide ring is sleeved with the impeller.

[0011] As a further improvement of the above technical solution: the air guide ring is trumpet-shaped.

[0012] As a further improvement of the above technical solution: the connecting bracket includes two connecting columns, and the two connecting columns are symmetrically arranged on both sides of the rotating shaft.

[0013] As a further improvement of the above technical solution: the connecting bracket includes a plurality of connecting columns, and the plurality of connecting columns are evenly distributed along the circumference of the rotating shaft.

[0014] As a further improvement of the above technical solution: the driving motor is arranged on the top surface of the outer box body, the side surface of the volute is provided with an air inlet and the bottom surface is provided with an air outlet.

[0015] Compared with the prior art, the advantages of the utility model are: in the oven structure disclosed by the utility model, the driving motor is installed on the outer box body, the impeller is connected to the rotating shaft of the driving motor, and the volute is installed on the outer box body through a connecting bracket, so that the impeller, volute, rotating shaft and other components are installed on the same reference, and the deformation of the inner box body at high temperature will not cause the volute and impeller to shift, thereby preventing scratches between components, and the structure is simple and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a main structural schematic diagram of the oven structure of the utility model.

[0017] Figure 2 yes Figure 1 A partial enlarged view of .

[0018] The symbols in the figure represent:

[0019] 1. Outer box; 11. Motor mounting seat; 2. Inner box; 3. Driving motor; 31. Rotating shaft; 4. Volute; 41. Volute mounting seat; 42. Air inlet; 43. Air outlet; 5. Impeller; 6. Connecting bracket; 7. Flexible connector; 8. Air guide ring. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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.

[0021] 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.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like 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 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 invention can be understood according to specific circumstances.

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 to Figure 2 An embodiment of the oven structure of the utility model is shown. The oven structure of this embodiment includes an outer box body 1, an inner box body 2 located in the outer box body 1, a driving motor 3 arranged on the outer box body 1, a volute 4 located in the inner box body 2 and an impeller 5 located in the volute 4. The rotating shaft 31 of the driving motor 3 passes through the inner box body 2 and the volute 4 and is connected to the impeller 5. A connecting bracket 6 is provided on the outer box body 1, and the connecting bracket 6 passes through the inner box body 2 and is connected to the volute 4.

[0025] In the oven structure of this embodiment, the driving motor 3 is installed on the outer box body 1, the impeller 5 is connected to the rotating shaft 31 of the driving motor 3, and the volute 4 is installed on the outer box body 1 through the connecting bracket 6, so that the impeller 5, the volute 4 and the rotating shaft 31 and other components are installed on the same reference. After the inner box body 2 is deformed at high temperature, the volute 4 and the impeller 5 will not be shifted, thereby preventing scratches between the components. The structure is simple and reasonable.

[0026] Furthermore, in this embodiment, a plurality of flexible connectors 7 are provided between the outer box 1 and the inner box 2, and the connecting bracket 6 and the rotating shaft 31 are passed through the flexible connectors 7. The flexible connectors 7 can realize a flexible connection between the outer box 1 and the inner box 2, and the connection will not fail even if the inner box 2 is deformed at high temperature. At the same time, the flexible connectors 7 also provide a channel for the connecting bracket 6 and the rotating shaft 31, and the structure is reasonable and effective.

[0027] As a preferred embodiment, the flexible connector 7 is a bellows, one end of which is welded to the outer box 1, and the other end of which is welded to the inner box 2. The two ends of the bellows are welded and fixed, the connection reliability is good, and it can be axially retracted. Even if the inner box 2 is deformed at high temperature, it will not cause connection failure, and it is also convenient for the connecting bracket 6 and the rotating shaft 31 to pass through. When the driving motor 3 drives the impeller 5 to rotate, negative pressure is generated in the inner box 2, and the external air passes through the outer box 1 and enters the bellows, which can cool the connecting bracket 6 and the rotating shaft 31.

[0028] Further, in this embodiment, a motor mounting seat 11 is provided on the outer box body 1, and the drive motor 3 and the connecting bracket 6 are arranged relatively on both sides of the motor mounting seat 11. The motor mounting seat 11 can increase the local thickness of the outer box body 1, thereby improving the installation stability of the drive motor 3 and the connecting bracket 6 on the outer box body 1. Preferably, the motor mounting seat 11 is a plate and is fixed to the outer box body 1 by threaded fasteners, and the connecting bracket 6 is welded and fixed to the motor mounting seat 11.

[0029] Further, in this embodiment, the volute 4 is arranged on the volute mounting seat 41, and the volute mounting seat 41 is connected to the connecting bracket 6. The volute mounting seat 41 can increase the local thickness of the volute 4, thereby improving the installation stability of the volute 4 on the connecting bracket 6. Preferably, the volute mounting seat 41 is a plate and is fixedly connected to the connecting bracket 6 by a threaded fastener, and the volute 4 and the volute mounting seat 41 are also fixedly connected by a threaded fastener, which is simple and reliable in structure.

[0030] Furthermore, in this embodiment, an air guide ring 8 is provided on the volute 4, and the air guide ring 8 is sleeved with the impeller 5. The air guide ring 8 can provide a guide for the air outlet of the impeller 5, ensuring that the airflow circulates inside the inner box 2 according to the set path. Since the air guide ring 8 is installed on the volute 4, it is installed on the same installation reference (i.e., the outer box 1) as the impeller 5, and after the inner box 2 is deformed at high temperature, there will be no scratches between the air guide ring 8 and the impeller 5.

[0031] As a preferred embodiment, the air guide ring 8 is trumpet-shaped and has a simple structure, which is conducive to making the air outlet more dispersed and uniform, thereby ensuring the air guide effect.

[0032] The connecting bracket 6 includes two connecting columns, which are symmetrically arranged on both sides of the rotating shaft 31 , have a simple structure, and good symmetry and force balance, which is conducive to ensuring the reliable installation of the volute 4 and the air guide ring 8 .

[0033] Of course, the connecting bracket 6 may include multiple connecting columns, and the multiple connecting columns are evenly distributed along the circumference of the rotating shaft 31, with good symmetry and force balance, which is conducive to ensuring the reliable installation of the volute 4 and the air guide ring 8.

[0034] As a preferred embodiment, the driving motor 3 is arranged on the top surface of the outer box body 1, and the side of the volute 4 is provided with an air inlet 42 and the bottom surface is provided with an air outlet 43. When the oven is working, the driving motor 3 drives the impeller 5 to rotate through the rotating shaft 31, and the air flow enters the volute 4 horizontally from the air inlet 42 on the side of the volute 4, and then is guided by the air guide ring 8 and flows out from the air outlet 43 on the bottom surface of the volute 4, so as to realize the circulation of the air flow inside the inner box body 2. The driving motor 3 is arranged on the top surface of the outer box body 1, which is convenient for connection with the impeller 5, and the structure is simple and reasonable.

[0035] Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. An oven structure, comprising an outer box (1), an inner box (2) located in the outer box (1), a driving motor (3) arranged on the outer box (1), a volute (4) located in the inner box (2), and an impeller (5) located in the volute (4), wherein a rotating shaft (31) of the driving motor (3) passes through the inner box (2) and the volute (4) and is connected to the impeller (5), characterized in that: The outer box body (1) is provided with a connecting bracket (6), and the connecting bracket (6) passes through the inner box body (2) and is connected to the volute (4).

2. The oven structure according to claim 1, characterized in that: A plurality of flexible connecting members (7) are provided between the outer box body (1) and the inner box body (2), and the connecting bracket (6) and the rotating shaft (31) are inserted into the flexible connecting members (7).

3. The oven structure according to claim 2, characterized in that: The flexible connecting member (7) is a bellows, one end of which is welded to the outer box body (1), and the other end of which is welded to the inner box body (2).

4. The oven structure according to claim 1, characterized in that: The outer box body (1) is provided with a motor mounting seat (11), and the drive motor (3) and the connecting bracket (6) are arranged on two sides of the motor mounting seat (11) relative to each other.

5. The oven structure according to claim 1, characterized in that: The volute (4) is arranged on a volute mounting seat (41), and the volute mounting seat (41) is connected to the connecting bracket (6).

6. The oven structure according to any one of claims 1 to 5, characterized in that: The volute (4) is provided with an air guide ring (8), and the air guide ring (8) is sleeved with the impeller (5).

7. The oven structure according to claim 6, characterized in that: The air guide ring (8) is in a trumpet shape.

8. The oven structure according to any one of claims 1 to 5, characterized in that: The connecting bracket (6) comprises two connecting columns, and the two connecting columns are symmetrically arranged on both sides of the rotating shaft (31).

9. The oven structure according to any one of claims 1 to 5, characterized in that: The connecting bracket (6) comprises a plurality of connecting columns, and the plurality of connecting columns are evenly distributed along the circumference of the rotating shaft (31).

10. The oven structure according to any one of claims 1 to 5, characterized in that: The driving motor (3) is arranged on the top surface of the outer box body (1), and the volute (4) is provided with an air inlet (42) on the side surface and an air outlet (43) on the bottom surface.

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