Driving roller with air holes

Abstract

The utility model discloses a driving roller with air holes, which relates to the technical field of driving rollers and is characterized in that the weight of a transmission shaft is greatly reduced due to the adoption of the air hole design and the arrangement of a first air chamber and a second air chamber, so that the weight of the whole driving roller is reduced, the first air chamber plays a role in storing and distributing air, and the air flow is controlled by controlling the air flow. Due to the fact that the air hole design is adopted, negative pressure can be formed on the surfaces of the second auxiliary air holes in the air exhaust process through air exhaust or air exhaust of the second auxiliary air holes, the negative pressure can adsorb the material belt and prevent the material belt from deviating and being folded outwards, an air flow is formed in the air exhaust process to blow the material belt on the conveying rollers, and the material belt is prevented from being folded inwards. And meanwhile, an effect of preventing the tab from being folded is achieved, and an additional guide sheet is not needed, so that the use of the guide sheet is omitted, and the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission rollers, in particular to a transmission roller with air holes. Background Technique

[0002] A transmission roller is an important mechanical component for transmitting power and torque. The traditional structure of a transmission roller is usually composed of a solid shaft body.

[0003] When the traditional transmission roller feeds the strip of the belt ear, guide plates are usually added above and below the transmission roller to prevent the ear from folding. This structure of adding guide plates makes the machine structure complex, increases the occupied space, and increases the overall weight of the transmission roller. Content of the Utility Model

[0004] To solve the technical problems in the background technique, the utility model proposes a transmission roller with air holes.

[0005] A transmission roller with air holes proposed by the utility model includes a secondary shaft, a main shaft is installed inside the secondary shaft, an air hole structure is arranged between the main shaft and the secondary shaft, and the air hole structure is used for air to flow out of the secondary shaft or air to enter the secondary shaft.

[0006] Preferably, the air hole structure includes a plurality of main air holes, the plurality of main air holes are opened on one side of the main shaft, a first air chamber is formed between the main shaft and the secondary shaft, the main air holes are communicated with the first air chamber, a second air chamber is opened inside the secondary shaft, a plurality of first secondary air holes are opened on the secondary shaft, and the first secondary air holes are used for communicating the first air chamber and the second air chamber, a plurality of second secondary air holes are opened on the secondary shaft, and the second secondary air holes are communicated with the second air chamber.

[0007] Preferably, a second air chamber support is installed inside the second air chamber.

[0008] Preferably, a rubber sleeve is sleeved on the secondary shaft, and a plurality of air holes corresponding to the second secondary air holes are opened on the rubber sleeve.

[0009] Preferably, bearings are installed at both ends of the main shaft.

[0010] Preferably, the shape of the main air holes is set to be L-shaped, and the plurality of main air holes are annularly distributed.

[0011] In the utility model, the proposed transmission roller with air holes has the following beneficial technical effects:

[0012] 1. Due to the adoption of the air hole design and the setting of the first air chamber and the second air chamber, the weight of the transmission shaft is greatly reduced, thereby reducing the weight of the entire transmission roller. Moreover, the first air chamber plays a role in storing and distributing gas, and by controlling the flow of gas, the heat dissipation performance of the transmission shaft can be further improved.

[0013] 2. The design of the second air chamber bracket in the second air chamber increases the strength and stability of the transmission shaft and improves the load-bearing capacity of the transmission shaft.

[0014] 3. The setting of the outer rubber sleeve can reduce the wear of the roller parts, improve the surface friction, and reduce the wear of the material tape. The design of the air holes can reduce the deviation of the material tape and ensure the transfer quality and efficiency.

[0015] 4. Due to the adoption of the air hole design, during the air extraction or air outlet through the second auxiliary air hole, a negative pressure will be formed on the surface of the second auxiliary air hole during air extraction. The negative pressure will adsorb the material tape, preventing the material tape from deviating and turning outwards. During air outlet, a stream of air will blow up the material tape on the conveying roller, preventing the material tape from turning inwards. While achieving the same effect of preventing the ear from turning over, it is not necessary to add additional guiding pieces, eliminating the use of guiding pieces and reducing the space occupation.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0017] Figure 1 is a perspective view of the present utility model;

[0018] Figure 2 is a side view of the present utility model;

[0019] Figure 3 is the present utility model Figure 1 a schematic cross-sectional structure diagram in the radial direction of;

[0020] Figure 4 is the present utility model Figure 1 a schematic cross-sectional structure diagram in the axial direction of;

[0021] Figure 5 is a cross-sectional view of the bearing of the present utility model;

[0022] Figure 6 is a cross-sectional view of the auxiliary shaft of the present utility model after removing the bearing.

[0023] In the figure, 1, main shaft; 2, bearing; 3, main air hole; 4, first air chamber; 5, auxiliary shaft; 6, first auxiliary air hole; 7, second air chamber; 8, second air chamber bracket; 9, second auxiliary air hole; 10, rubber sleeve. Detailed Description of the Preferred Embodiments

[0024] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0025] As Figures 1-6 shown, a drive roller with air holes includes a secondary shaft 5. A main shaft 1 is installed inside the secondary shaft 5. An air hole structure is provided between the main shaft 1 and the secondary shaft 5, and the air hole structure is used for air to flow out of or into the secondary shaft 5.

[0026] In an alternative embodiment, the air hole structure includes a plurality of main air holes 3. The plurality of main air holes 3 are opened on one side of the main shaft 1. A first air chamber 4 is formed between the main shaft 1 and the secondary shaft 5. The first air chamber 4 is opened inside the secondary shaft 5. The connections at both sides of the main shaft 1 and the secondary shaft 5 are sealed. At this time, the main shaft 1 penetrates through the secondary shaft 5 and the first air chamber 4, and the diameter of the first air chamber 4 is larger than that of the main shaft 1. The main air holes 3 are communicated with the first air chamber 4. The first air chamber 4 is used for storing and buffering the gas from the main air holes 3, and the first air chamber 4 plays a role in storing and distributing the gas. By controlling the flow of the gas, the heat dissipation performance of the transmission shaft can be further improved.

[0027] In an alternative embodiment, a second air chamber 7 is opened inside the secondary shaft 5. The function of the second air chamber 7 is to further increase the surface area of the transmission shaft and reduce the overall weight of the drive roller. A plurality of first secondary air holes 6 are opened on the secondary shaft 5, and the first secondary air holes 6 are used for communicating the first air chamber 4 and the second air chamber 7 so that the gas can flow between the first air chamber 4 and the second air chamber 7.

[0028] In an alternative embodiment, a plurality of second secondary air holes 9 are opened on the secondary shaft 5, and the second secondary air holes 9 are communicated with the second air chamber 7. The positions of the second secondary air holes 9 can be flexibly changed to meet the production requirements of different material tapes.

[0029] In an alternative embodiment, a second air chamber bracket 8 is installed inside the second air chamber 7. The second air chamber bracket 8 is used to increase the strength and stability of the drive roller, and the second air chamber 7 is used for storing and dispersing the gas.

[0030] In an alternative embodiment, a rubber sleeve 10 is sleeved on the secondary shaft 5. The rubber sleeve 10 can effectively improve the surface friction and also reduce the wear on the material tape. A plurality of air holes corresponding to the second secondary air holes 9 are opened on the rubber sleeve 10.

[0031] In an alternative embodiment, bearings 2 are installed at both ends of the main shaft 1. The main shaft 1 is a core component of the transmission shaft, which has high strength and good rigidity to withstand the torque and load during the transmission process. The main shaft 1 is connected to the external transmission device through the bearings 2 to ensure smooth and reliable transmission.

[0032] In an alternative embodiment, the main air holes 3 are arranged in an L shape, and a plurality of main air holes 3 are distributed in a ring shape. The main air holes 3 are the source of the total gas inside the transmission roller, and a plurality of main air holes 3 are all connected to an external air source.

[0033] This application provides a transmission roller with an air chamber and air holes, comprising:

[0034] 1. Light weight: Due to the adoption of the air hole design, the weight of the transmission shaft is greatly reduced, thereby reducing the weight of the entire mechanical system.

[0035] 2. High strength: The design of the second air chamber bracket 8 in the second air chamber 7 increases the strength and stability of the transmission shaft and improves the load-bearing capacity of the transmission shaft.

[0036] 3. Wear resistance: The setting of the outer rubber sleeve 10 can reduce the wear on the roller parts, improve the surface friction, and reduce the wear on the material belt. The air hole design can reduce the deviation of the material belt and ensure the transmission quality and efficiency.

[0037] During the application process, air is injected into the conveyor roller through the main air holes 3. After the air is dispersed in the first air chamber 4, it is evenly distributed inside the second air chamber 7 through the first auxiliary air holes 6, and then flows to the external environment through the second auxiliary air holes 9, forming an air flow to blow up the material belt on the conveyor roller and prevent the material belt from turning inwards.

[0038] During the application process, vacuum can also be drawn out through the main air holes 3. The air in the external environment flows into the second air chamber 7 through the second auxiliary air holes 9, and finally takes the air inside the conveyor roller away through the main air holes 3. In this way, a negative pressure will be formed on the surface of the second auxiliary air holes 9, and the negative pressure will adsorb the material belt to prevent the material belt from deviating and turning outwards.

[0039] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0040] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 thus should not be construed as a limitation to the present invention.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0042] In the present invention, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A transmission roller with air holes, comprising a secondary shaft (5), wherein a main shaft (1) is installed in the secondary shaft (5), characterized in that: An air hole structure is provided between the main shaft (1) and the secondary shaft (5), and the air hole structure is used for air flow to flow out of the secondary shaft (5) or for air flow to enter the secondary shaft (5).

2. The transmission roller with air holes according to claim 1, characterized in that: The pore structure comprises a plurality of main pores (3), wherein the plurality of main pores (3) are provided on one side of the main shaft (1), a first air chamber (4) is formed between the main shaft (1) and the secondary shaft (5), the main pores (3) are connected to the first air chamber (4), a second air chamber (7) is provided in the secondary shaft (5), a plurality of first secondary pores (6) are provided on the secondary shaft (5), and the first secondary pores (6) are used to connect the first air chamber (4) and the second air chamber (7), a plurality of second secondary pores (9) are provided on the secondary shaft (5), and the second secondary pores (9) are connected to the second air chamber (7).

3. The transmission roller with air holes according to claim 2, characterized in that: A second air chamber bracket (8) is installed in the second air chamber (7).

4. The transmission roller with air holes according to claim 2, characterized in that: The secondary shaft (5) is sleeved with a rubber sleeve (10), and the rubber sleeve (10) is provided with a plurality of air holes corresponding to the second secondary air holes (9).

5. The transmission roller with air holes according to claim 1, characterized in that: Bearings (2) are installed at both ends of the main shaft (1).

6. The transmission roller with air holes according to claim 2, characterized in that: The main air holes (3) are arranged in an L-shape, and a plurality of the main air holes (3) are distributed in a ring shape.

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