Fan pulley

Abstract

The utility model relates to a fan formula pulley belongs to agricultural machinery technical field, including the rim portion, the rotation axis seat and the radial rib in rim portion, wherein: the both ends of radial rib are fixedly connected rim portion rotation axis seat respectively, radial rib surrounds the axis distribution of rotation axis seat, radial rib is the fan blade shape, is used for forming the heat dissipation airflow when the synchronous rotation of pulley. Above structure, through the both ends of radial rib fixedly connected rim portion rotation axis seat respectively, radial rib surrounds the axis distribution of rotation axis seat, and radial rib is the fan blade shape structural member, makes this pulley can produce a large amount of wind when rotating, carries out the cooling to machine parts, makes machine parts work in the good temperature interval, reduces the resistance, and then expands the matching power of this pulley.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and specifically relates to a fan-type pulley. Background Technology

[0002] Pulleys are an important component of mechanical transmission systems, used to transmit power and regulate speed via belts. They transfer power from the drive shaft to the driven shaft through friction or meshing, and are widely used in various mechanical equipment.

[0003] The spokes (also called wheel spokes or spokes) of a pulley are key structural components connecting the pulley's rotating shaft seat (the central mounting hole) and the rim (the outer ring where the belt groove is mounted). Existing pulley spokes are rib-like structures, primarily functioning to transmit torque, withstand bending loads, and provide structural support and rigidity. However, the elliptical shape of existing pulley spokes prevents the generation of airflow during rotation; the transmission components rely solely on natural wind and surface radiation for cooling, lacking forced airflow for further cooling. As the driving power increases, the generated heat increases, raising the temperature of the transmission components and impacting performance.

[0004] Therefore, to address the problem that existing pulleys cannot cool down the transmission box components, a fan-type pulley is needed. Utility Model Content

[0005] This invention provides a fan-type pulley to solve the problem that existing pulleys cannot cool down transmission box components.

[0006] This utility model is achieved through the following technical solution: a fan-type pulley, comprising a rim portion, a rotating shaft seat located within the rim portion, and spokes, wherein:

[0007] The two ends of the spokes are fixedly connected to the wheel rim and the rotating shaft seat, respectively. The spokes are distributed around the axis of the rotating shaft seat and are fan-shaped to form a heat dissipation airflow when the pulley rotates synchronously.

[0008] To better realize this utility model, the above structure is further optimized. The radial ribs are arc-shaped plate structures and are inclined relative to the central axis of the rotating shaft seat.

[0009] To better realize this utility model, the above structure is further optimized, and the radial ribs are evenly spaced around the axis of the rotating shaft seat.

[0010] To better realize this utility model, the above structure is further optimized, and the spokes are rotate symmetrical about the central axis of the rim.

[0011] To better realize this utility model, the above structure is further optimized, and the rotating shaft seat is a ring-shaped structural component.

[0012] To better realize this utility model, further optimizations are made to the above structure, and a slot is provided on the inner wall of the rotating shaft seat.

[0013] To better realize this utility model, the above structure is further optimized by uniformly providing multiple belt grooves on the outer wall of the wheel flange.

[0014] To better realize this utility model, the above structure is further optimized, and the belt grooves are spaced apart along the axial direction of the wheel flange.

[0015] To better realize this utility model, the above structure is further optimized. The axial section of the belt groove along the wheel flange is trapezoidal, and the inner diameter of the belt groove gradually increases along the axial direction away from the wheel flange.

[0016] To better realize this utility model, the above structure is further optimized, and the number of spokes is 2-6.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] This utility model provides a fan-type pulley, including a rim portion, a rotating shaft seat located within the rim portion, and spokes, wherein: the two ends of the spokes are respectively fixedly connected to the rim portion and the rotating shaft seat, the spokes are distributed around the axis of the rotating shaft seat, and the spokes are fan-shaped to form a heat dissipation airflow when the pulley rotates synchronously.

[0019] The above structure uses spokes to fix the wheel rim and the rotating shaft seat at both ends. The spokes are distributed around the axis of the rotating shaft seat and are designed as fan blade-shaped structures. This allows the pulley to generate a large amount of air when it rotates, which cools the machine parts and keeps them in a good temperature range during operation. This reduces resistance and increases the pulley's driving power. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the fan-type pulley in this utility model;

[0022] Figure 2 This is a right view of the fan-type pulley in this utility model.

[0023] In the picture:

[0024] 1-Wheel flange; 2-Spoke rib; 3-Rotating shaft seat; 4-Slot; 5-Belt groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] A fan-type pulley includes a rim portion 1, a rotating shaft seat 3 located within the rim portion 1, and spokes 2, wherein: the two ends of the spokes 2 are respectively fixedly connected to the rim portion 1 and the rotating shaft seat 3, the spokes 2 are distributed around the axis of the rotating shaft seat 3, and the spokes 2 are fan-shaped to form a cooling airflow when the pulley rotates synchronously.

[0030] The aforementioned structure, with the spokes 2 fixedly connected to the wheel rim 1 and the rotating shaft seat 3 at both ends, and the spokes 2 distributed around the axis of the rotating shaft seat 3, and designed as fan-shaped structural components, allows the pulley to generate a large amount of airflow when rotating, cooling the machine parts and ensuring they operate within a suitable temperature range, reducing resistance and thus increasing the pulley's carrying capacity. The high-speed rotation of the pulley also reduces the temperature of the corresponding bearings due to the airflow. The high-speed airflow also removes dust and small debris between the pulley and the machine body.

[0031] The aforementioned spoke rib 2 is an arc-shaped plate structure and is inclined relative to the central axis of the aforementioned rotating shaft seat 3. That is, by setting the spoke rib 2 as an arc-shaped plate structure and inclined to the central axis, the pulley will generate an inward airflow through the spoke rib 2 when it rotates.

[0032] The spokes 2 are evenly spaced around the axis of the rotating shaft seat 3. This even distribution of the spokes 2 around the axis of the rotating shaft seat 3 makes the airflow generated by the pulley more stable.

[0033] The spokes 2 are rotationally symmetrical about the central axis of the rim portion 1.

[0034] The aforementioned rotating bearing seat 3 is a ring-shaped structural component. Designing the rotating bearing seat 3 as a ring makes it easier to adapt to external rotating shafts.

[0035] The inner wall of the aforementioned rotating shaft seat 3 is provided with a slot 4. The slot 4 is used to engage with an external rotating shaft, allowing it to be driven by the external rotating shaft.

[0036] The outer wall of the aforementioned wheel flange 1 is uniformly provided with multiple belt grooves 5. The belt grooves 5 are used to guide the belt, so that it runs correctly on the pulley, and prevent the belt from deviating from or slipping out of the groove during operation. They can increase the contact area and friction between the belt and the pulley, thereby improving transmission efficiency and preventing belt slippage.

[0037] The belt grooves 5 are spaced apart along the axial direction of the wheel flange portion 1.

[0038] The belt groove 5 has a trapezoidal cross-section along the axial direction of the wheel rim 1, and the inner diameter of the belt groove 5 gradually increases in the direction away from the axis of the wheel rim 1. This arrangement facilitates the engagement of the belt groove 5 with the weave on the belt.

[0039] The number of spokes 2 is 2-6. Setting the number of spokes 2 to 6 ensures that wind power is generated without making the wind too weak.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A fan-type pulley, characterized in that: It includes a rim portion (1), a rotating shaft seat (3) located within the rim portion, and spokes (2), wherein: The two ends of the spoke (2) are fixedly connected to the wheel rim and the rotating shaft seat, respectively. The spoke (2) is distributed around the axis of the rotating shaft seat. The spoke (2) is fan-shaped and is used to form a heat dissipation airflow when the pulley rotates synchronously.

2. A fan-type pulley according to claim 1, characterized in that: The radial ribs are arc-shaped plate structures and are inclined relative to the central axis of the rotating bearing (3).

3. A fan-type pulley according to claim 1, characterized in that: The radial (2) ribs are evenly spaced around the axis of the rotating shaft seat (3).

4. A fan-type pulley according to claim 1, characterized in that: The spokes are rotationally symmetrical about the central axis of the rim (1).

5. A fan-type pulley according to claim 1, characterized in that: The rotating bearing (3) is a ring-shaped structural component.

6. A fan-type pulley according to claim 1, characterized in that: The inner wall of the rotating shaft seat (3) is provided with a slot (4).

7. A fan-type pulley according to claim 1, characterized in that: Multiple belt grooves (5) are evenly provided on the outer wall of the wheel flange (1).

8. A fan-type pulley according to claim 7, characterized in that: The belt grooves (5) are spaced apart along the axial direction of the wheel flange (1).

9. A fan-type pulley according to claim 7, characterized in that: The belt groove (5) has a trapezoidal cross section along the axial direction of the wheel flange, and the inner diameter of the belt groove (5) gradually increases along the axial direction away from the wheel flange (1).

10. A fan-type pulley according to claim 1, characterized in that: The number of spokes (2) is 2-6.

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