Hollow belt shaft with heat dissipation structure

Abstract

The utility model belongs to the technical field of belt conveyors, and particularly relates to a hollow belt shaft with a heat dissipation structure, which comprises a hollow belt shaft and a fan blade assembly, the hollow belt shaft comprises a belt bearing section and bearing bearing sections arranged at the two ends of the belt bearing section, and air inlet and outlet holes are formed in the end face of the belt bearing section on the peripheral sides of the bearing bearing sections. Spiral guide plates are arranged in the belt bearing section on the two sides of the air inlet and outlet, the fan blade assembly comprises fan blades, the inner sides and the outer sides of the fan blades are connected with the inner wall of the outer ring body and the outer side face of the inner ring body respectively, the axis of the air inlet and outlet is located between the inner ring body and the outer ring body, and the fan blade assembly is installed on the bearing bearing section. When the fan blade assemblies are driven by the hollow belt shaft to rotate synchronously, external air flows through the interior of the belt bearing section through the air inlet and outlet holes under the action of the fan blades and is guided and accelerated through the spiral guide plates, heat of the belt bearing section is taken away rapidly, and the cooling effect of air cooling is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyors, and in particular relates to a hollow belt shaft with a heat dissipation structure. Background Art

[0002] During operation, the distance between the existing hollow belt shaft bearing and the conveyor housing is relatively close, resulting in that when the temperature of the material transported inside the housing is high, the temperature of the bearing increases due to heat conduction, thereby affecting the service life of the bearing.

[0003] In the prior art, there are two ways to dissipate heat for hollow belt shafts: air cooling and water cooling. Water cooling has a high cooling efficiency but is complex to install and has high costs. Air cooling generally uses a fan or installs fan blades on the belt shaft, and drives the fan blades to rotate through the rotating belt shaft, thereby achieving air cooling. The former of the above two air cooling methods has high energy consumption and high costs, while the latter has low cooling efficiency. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a hollow belt shaft with a heat dissipation structure to solve the problem that the existing hollow belt shaft cannot achieve low-cost and efficient cooling when cooled by air cooling.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a hollow belt shaft with a heat dissipation structure, comprising a hollow belt shaft and a fan blade assembly, the hollow belt shaft comprising a belt supporting section and bearing supporting sections arranged at both ends of the belt supporting section, inlet and outlet holes are provided on the end face of the belt supporting section on the circumferential side of the bearing supporting section, spiral guide plates are arranged inside the belt supporting sections on both sides of the inlet and outlet holes, the fan blade assembly comprises fan blades, the inner and outer sides of the fan blades are respectively connected to the inner wall of the outer ring body and the outer side surface of the inner ring body, the axis of the inlet and outlet holes is located between the inner ring body and the outer ring body, and the fan blade assembly is mounted on the bearing supporting section.

[0006] The beneficial effect of the utility model is that when the fan blade assembly rotates synchronously driven by the hollow belt shaft, the external air flows through the interior of the belt supporting section through the inlet and outlet holes under the action of the fan blades, and is accelerated by the spiral guide plate, quickly taking away the heat of the belt supporting section, effectively improving the heat dissipation effect of air cooling.

[0007] In order to effectively improve the heat dissipation effect of the hollow belt shaft through the spiral guide plate;

[0008] As a further improvement of the above technical solution: the spiral guide plate and the air inlet and outlet holes are multiple in number and are arranged around the axis of the belt supporting section.

[0009] The beneficial effect of this improvement is that the spiral guide plate plays a guiding role, and improves the air cooling and heat dissipation effect of the belt supporting section by increasing the speed of air flowing through the belt supporting section.

[0010] In order to effectively improve the heat dissipation effect of the hollow belt shaft through the spiral guide plate;

[0011] As a further improvement of the above technical solution: the outer side surface of the spiral guide plate is welded to the inner wall of the belt supporting section.

[0012] The beneficial effect of this improvement is that the spiral guide plate also plays a role in heat transfer, transferring the temperature of the belt supporting section to the surface of the spiral guide plate, thereby improving the heat dissipation effect of the hollow belt shaft by increasing the heat dissipation area.

[0013] In order to effectively ensure the structural strength of the belt supporting section;

[0014] As a further improvement of the above technical solution: both ends of the spiral guide plate are connected to the inner end surface of the belt supporting section.

[0015] The beneficial effect of this improvement is that the spiral guide plate can also be used as a reinforcing rib, effectively improving the overall structural strength of the belt supporting section.

[0016] In order to allow external air to effectively enter the interior of the belt supporting section under the action of the fan blades;

[0017] As a further improvement of the above technical solution: one end of the outer ring body and the inner ring body is flatly abutted against the end face of the belt supporting section, a screw seat for inserting screws is provided on the circumference of the outer ring body, and a screw hole structure is opened on the end face of the belt supporting section.

[0018] The beneficial effect of this improvement is that the fan blade assembly can be tightly installed on the end of the belt supporting section under the action of screws, so that the air sucked in when the fan blades rotate is effectively sent into the interior of the belt supporting section through the inlet and outlet holes.

[0019] In order to ensure the convenience of installing the fan blade assembly;

[0020] As a further improvement of the above technical solution: the inner ring body and the bearing supporting section are clearance-fitted.

[0021] The beneficial effect of this improvement is that the inner ring body can be slidably mounted on the bearing support section to achieve rapid positioning of the fan blade assembly during installation.

[0022] To avoid friction between the fan blade assembly and the belt on the hollow belt shaft;

[0023] As a further improvement of the above technical solution: the vertical distance from the end of the screw seat to the axis of the inner ring body is not greater than the diameter of the belt supporting section.

[0024] The beneficial effect of this improvement is that the entire fan blade assembly does not exceed the edge of the belt supporting section, thereby effectively avoiding friction with the belt on the hollow belt shaft.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a side sectional view of the utility model;

[0027] Figure 2 It is a front sectional view of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the hollow belt shaft of the utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the fan blade assembly in the utility model;

[0031] In the figure: 1. hollow belt shaft; 11. belt supporting section; 12. bearing supporting section; 13. air inlet and outlet holes; 14. spiral guide plate; 2. fan blade assembly; 21. inner ring body; 22. outer ring body; 23. fan blade; 24. screw seat. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0033] Embodiment 1:

[0034] like Figure 1—5 shows: a hollow belt shaft with a heat dissipation structure, comprising a hollow belt shaft 1 and a fan blade assembly 2, wherein the hollow belt shaft 1 comprises a belt supporting section 11 and bearing supporting sections 12 arranged at both ends of the belt supporting section 11, an end surface of the belt supporting section 11 on the peripheral side of the bearing supporting section 12 is provided with an inlet and outlet hole 13, and the belt supporting section 11 on both sides of the inlet and outlet hole 13 is provided with a spiral guide plate 14 inside, and the fan blade assembly 2 comprises a fan blade 23, and the inner and outer sides of the fan blade 23 are respectively connected to the inner wall of the outer ring body 22 and the outer side surface of the inner ring body 21, and the axis of the inlet and outlet hole 13 is located between the inner ring body 21 and the outer ring body 22. Component 2 is installed on the bearing support section 12. When the fan blade component 2 rotates synchronously under the drive of the hollow belt shaft 1, the external air flows through the interior of the belt support section 11 through the inlet and outlet holes 13 under the action of the fan blades 23, and is accelerated by the spiral guide plate 14 to quickly take away the heat of the belt support section 11, effectively improving the heat dissipation effect of air cooling. The number of the spiral guide plate 14 and the inlet and outlet holes 13 is multiple and is arranged around the axis of the belt support section 11. The spiral guide plate 14 plays a guiding role. By increasing the speed of air flowing through the belt support section 11, the air cooling and heat dissipation effect of the belt support section 11 is improved. The outer side of the spiral guide plate 14 is attached to the The spiral guide plate 14 is welded on the inner wall of the belt supporting section 11. The spiral guide plate 14 also plays a role in heat transfer, transferring the temperature of the belt supporting section 11 to the surface of the spiral guide plate 14, and improving the heat dissipation effect of the hollow belt shaft 1 by increasing the heat dissipation area. The two ends of the spiral guide plate 14 are connected to the inner end surface of the belt supporting section 11. The spiral guide plate 14 can also be used as a reinforcing rib to effectively improve the overall structural strength of the belt supporting section 11. The outer ring body 22 and one end of the inner ring body 21 are flatly attached to the end surface of the belt supporting section 11. The peripheral side of the outer ring body 22 is provided with a screw seat 24 for inserting screws. The belt supporting section 11 A screw hole structure is provided on the end face, and the fan blade assembly 2 can be tightly installed on the end of the belt supporting section 11 under the action of the screw, so that the air sucked in when the fan blade 23 rotates is effectively sent into the interior of the belt supporting section 11 through the inlet and outlet holes 13. The inner ring body 21 and the bearing supporting section 12 are clearance-matched, and the inner ring body 21 can be slidably mounted on the bearing supporting section 12 to achieve rapid positioning of the fan blade assembly 2. The vertical distance from the end of the screw seat 24 to the axis of the inner ring body 21 is not greater than the diameter of the belt supporting section 11, and the overall fan blade assembly 2 does not exceed the edge of the belt supporting section 11, thereby effectively avoiding friction with the belt on the hollow belt shaft 1.

[0035] The working principle of the present technical solution is as follows: when the hollow belt shaft 1 rotates, the fan blade assembly 2 keeps rotating synchronously with the hollow belt shaft 1, and the external air is sucked into the interior of the hollow belt shaft 1 through the inlet and outlet holes 13 under the rotation of the fan blades 23; when the air flows inside the belt supporting section 11, it is guided by the spiral guide plate 14, and the spiral guide plate 14 further increases the flow speed of the air, thereby increasing the heat dissipation effect of the air on the surface of the belt supporting section 11, so that the air that quickly flows through the surface of the spiral guide plate 14 carries the heat on the belt supporting section 11 and the spiral guide plate 14 and is quickly discharged through the inlet and outlet holes 13 to achieve efficient cooling.

[0036] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A hollow belt shaft with a heat dissipation structure, characterized in that: The invention comprises a hollow belt shaft (1) and a fan blade assembly (2), wherein the hollow belt shaft (1) comprises a belt supporting section (11) and bearing supporting sections (12) arranged at both ends of the belt supporting section (11), an end surface of the belt supporting section (11) on the peripheral side of the bearing supporting section (12) is provided with an inlet and outlet air hole (13), and the belt supporting section (11) on both sides of the inlet and outlet air hole (13) is provided with a spiral guide plate (14), and the fan blade assembly (2) comprises a fan blade (23), the inner and outer sides of the fan blade (23) are respectively connected to the inner wall of the outer ring body (22) and the outer side surface of the inner ring body (21), the axis of the inlet and outlet air hole (13) is located between the inner ring body (21) and the outer ring body (22), and the fan blade assembly (2) is mounted on the bearing supporting section (12).

2. The hollow belt shaft with a heat dissipation structure according to claim 1, characterized in that: The spiral guide plate (14) and the air inlet and outlet holes (13) are multiple in number and are arranged around the axis of the belt supporting section (11).

3. The hollow belt shaft with a heat dissipation structure according to claim 1, characterized in that: The outer side surface of the spiral guide plate (14) is welded to the inner wall of the belt supporting section (11).

4. The hollow belt shaft with a heat dissipation structure according to claim 1, characterized in that: Both ends of the spiral guide plate (14) are connected to the inner end surface of the belt supporting section (11).

5. The hollow belt shaft with a heat dissipation structure according to claim 1, characterized in that: One end of the outer ring body (22) and the inner ring body (21) are flatly abutted against the end face of the belt supporting section (11); a screw seat (24) for inserting screws is provided on the circumferential side of the outer ring body (22); and a screw hole structure is provided on the end face of the belt supporting section (11).

6. The hollow belt shaft with a heat dissipation structure according to claim 1, characterized in that: The inner ring body (21) and the bearing support section (12) are clearance-fitted.

7. The hollow belt shaft with a heat dissipation structure according to claim 5, characterized in that: The vertical distance from the end of the screw seat (24) to the axis of the inner ring body (21) is no greater than the diameter of the belt supporting section (11).

Images