A straight bar stabilizer based on helical structure blade

Abstract

The application provides a straight rod stabilizing device based on a spiral structure blade, which comprises a straight rod, a spiral blade structure, a ball bearing and a thrust bearing; the outer layer of the straight rod is connected with the spiral blade structure; the upper and lower ends of the spiral blade structure are movably connected with the ball bearing and the thrust bearing; the application can improve the wind stability; the device can effectively improve the wind stability of objects (such as buildings, bridges, telegraph poles, billboards and the like) exposed in a high wind speed environment, reduce the possibility of being affected by wind force, and reduce the production and maintenance costs; through the detachable design, the spiral blade structure is independently installed, the cost increase caused by integral molding can be avoided in the production process, the maintenance and replacement can be more convenient, the maintenance cost is reduced, meanwhile, through the 3D printing technology and the like, the material cost can be reduced in the manufacturing process, and the structure weight is reduced.

Description

Technical Field

[0001] This invention relates to the field of helical structure straight rod technology, and more specifically to a straight rod stabilizing device based on helical structure blades. Background Technology

[0002] Safety issues arising from wind stability: In the design of tall objects such as utility poles and billboards, the stability and safety of these vertical pole-like structures in windy environments has always been an important issue. There have been many accidents in life where pole-like structures have collapsed due to wind, causing injuries and property damage, posing a great threat to people's lives and property safety. When the above-mentioned tall physical structures are exposed to high wind speed environments, they need to be able to withstand the wind to prevent damage.

[0003] Design of wind-driven guide rotation device: Due to structural limitations, a single vertical rod does not have stable characteristics under wind force conditions and may tip over. The combination of spiral structure and fan blades can disperse the influence of wind force on the stability of the vertical rod and improve the wind resistance of the rod. At the same time, the structure can rotate under the action of horizontal wind force during wind guidance, and the rotational inertia can enhance the stability in the wind field environment.

[0004] Application of 3D printing technology: Traditional wind deflector devices generally use welding or mortise and tenon structures, or one-piece molding methods. Under environmental exposure, they will gradually age over time and are not easy or impossible to repair or replace. This invention applies 3D printing technology to the production of the spiral blades of the deflector device. While ensuring the deflection effect, it saves materials and reduces the overall weight of the structure. On the other hand, the structural strength of the one-piece 3D printed structure is better than that of the spliced ​​structure. At the same time, it is easy to mass-produce and replace, which can extend the service life of the wind deflector device and broaden its application scenarios.

[0005] For educational purposes: The effects of wind have always been a weak area in physics experiments because their parameters are difficult to collect, environmental variables are difficult to control, and experimental results are difficult to demonstrate, making it difficult to make new progress. The field of education needs an intuitive and effective physical wind experiment device. Summary of the Invention

[0006] The technical solution adopted by the present invention to achieve the technical objective is: a straight rod stabilizing device based on a helical blade structure, the structure of which includes: a straight rod, a helical blade structure, a ball bearing, and a thrust bearing. The outer layer of the straight rod is connected to the helical blade structure, and the upper and lower ends of the helical blade structure are movably connected to the ball bearing and the thrust bearing.

[0007] As a further improvement of the present invention, the spiral blade structure is provided with a first slot, an upper end cover, a groove, a second slot, and a lower end cover at its upper and lower positions. The first slot and the upper end cover are an integral structure. The groove is opened inside the upper end cover and is an integral structure therewith. The second slot and the surface edge of the lower end cover are integral. The upper end cover is set at the upper end of the straight rod. The lower end cover is set at the lower end of the straight rod. The distance between the upper end cover and the lower end cover is the installation space of the spiral blade structure. The upper end cover and the lower end cover will complete the installation of the spiral blade structure through the first slot and the second slot.

[0008] As a further improvement of the present invention, the specific force analysis of the helical blade structure is as follows: v is the external wind speed, m / s; u is the blade linear velocity, m / s; w is the relative wind speed, m / s; α is the angle of attack, °; FL is the lift subscript, KN; FD is the drag subscript, KN; FU is the resultant force subscript of the lift and drag subscripts.

[0009] The mechanical relationship between the above parameters is as follows:

[0010]

[0011]

[0012] v2=vcosθ

[0013] In the formula: v1 is the component of v in the normal direction of the blade linear velocity, m / s; v2 is the component of v in the direction of the blade linear velocity, m / s.

[0014] Furthermore:

[0015]

[0016]

[0017]

[0018]

[0019]

[0020] In the formula: C L C is the lift coefficient of the blade. D This represents the drag coefficient of the blade.

[0021] As a further improvement of the present invention, the thrust bearing is provided with a cap and a bearing, the cap covering the top of the bearing and allowing the straight rod to pass through the center at the bottom.

[0022] As a further improvement of the present invention, the ball bearing is installed at the lower middle end of the straight rod and is on the same vertical center line as the straight rod and the ball bearing.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. This invention can improve wind stability: The purpose is to provide a device that can effectively improve the wind stability of objects (such as buildings, bridges, utility poles, billboards, etc.) exposed to high wind speed environments, and reduce the possibility of them being affected by wind.

[0025] 2. This invention can reduce production and maintenance costs: Through the detachable design, the spiral blade structure can be installed independently, which can avoid the increased cost caused by one-piece molding during the production process. It can also be more convenient to repair and replace, thus reducing maintenance costs. At the same time, through technologies such as 3D printing, material costs can be reduced and the structural weight can be reduced during the manufacturing process.

[0026] 3. This invention allows for free modification of the blade structure, providing an accurate basis for quantitative mechanical calculations of objects with specific shapes and force-bearing areas: the parametric design of the spiral structure enables the device to easily collect a large amount of data, and allows for the free addition or removal of blades and the setting of control experiments, thereby providing a better understanding of the quantitative mechanical calculations for objects with specific shapes and force-bearing areas. This provides an accurate theoretical basis for research and practice in related fields.

[0027] 4. This invention can be used for education and scientific research: The purpose of this invention is to provide an experimental platform for education and scientific research to help students and researchers better understand the mechanical phenomena of objects under the action of external forces such as wind, and how to perform related quantitative calculations. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of a straight rod stabilizing device based on a helical blade structure.

[0029] Figure 2 This is a three-dimensional structural diagram of the upper and lower end components of a spiral blade structure.

[0030] Figure 3 This is a structural schematic diagram of the force analysis parameters of a type of helical blade.

[0031] Figure 4 This is a structural diagram of a thrust bearing.

[0032] Figure 5 This is a structural diagram of a ball bearing mounting position.

[0033] In the diagram: Straight rod-1, Helical blade structure-2, Ball bearing-3, Thrust bearing-4, Hollow groove one-b1, Upper end cover-b2, Groove-b3, Hollow groove two-c1, Lower end cover-c2, Cap-a1, Ball shaft-a2. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] Example:

[0036] Figures 1 to 5 As shown:

[0037] This invention provides a straight rod stabilizing device based on a helical blade structure.

[0038] Its structure includes a straight rod 1, a helical blade structure 2, a ball bearing 3, and a thrust bearing 4. The outer layer of the straight rod 1 is connected to the helical blade structure 2, and the upper and lower ends of the helical blade structure 2 are movably connected to the ball bearing 3 and the thrust bearing 4.

[0039] The spiral blade structure 2 is provided with a slot one b1, an upper end cover b2, a groove b3, a slot two c1, and a lower end cover c2 at its upper and lower positions. The slot one b1 and the upper end cover b2 are an integral structure. The groove b3 is opened inside the upper end cover b2 and is an integral structure with it. The slot two c1 and the surface edge of the lower end cover c2 are integral. The upper end cover b2 is set at the upper end of the straight rod 1. The lower end cover c2 is set at the lower end of the straight rod 1. The distance between the lower end cover c2 and the upper end cover b2 is the installation space of the spiral blade structure 2. The upper end cover b2 and the lower end cover c2 will complete the installation of the spiral blade structure 2 through the slot one b1 and the slot two c1.

[0040] The specific force analysis of the spiral blade structure 2 is as follows: v is the external wind speed, m / s; u is the blade linear velocity, m / s; w is the relative wind speed, m / s; α is the angle of attack, °; FL is the lift subscript, KN; FD is the drag subscript, KN; FU is the resultant force subscript of the lift and drag subscripts.

[0041] The mechanical relationship between the above parameters is as follows:

[0042]

[0043]

[0044] v2=vcosθ

[0045] In the formula: v1 is the component of v in the normal direction of the blade linear velocity, m / s; v2 is the component of v in the direction of the blade linear velocity, m / s.

[0046] Furthermore:

[0047]

[0048]

[0049]

[0050]

[0051]

[0052] In the formula: C L C is the lift coefficient of the blade. D This represents the drag coefficient of the blade.

[0053] The thrust bearing 3 is provided with a cap a1 and a bearing a2. The cap a1 covers the top of the bearing a2 and allows the straight rod 1 to pass through the center at the bottom.

[0054] The ball bearing 4 is installed at the lower middle end of the straight rod 1 and is on the same vertical center line as the ball bearing 3 through the straight rod 1.

[0055] The specific functions and operation procedures of this embodiment are as follows:

[0056] In this invention,

[0057] The device is mainly composed of four parts: straight rod 1, spiral blade structure 2, ball bearing 3 and thrust bearing 4. The spiral blade structure 2 is composed of blades formed by combining the upper end cover b2 and the lower end cover c2. At the same time, fixed slots one and two b1 and c1 are opened on the upper and lower end covers b2 and c2 for installing other added or removed blades.

[0058] The bottom of the upper and lower end caps b2 and c2 are provided with fixed slots one and two b1 and c1 at different angles for installing blades to form double-blade and triple-blade structures.

[0059] The lowest section of the device relies on the interference fit between the ball bearing and the rod-shaped structure to play a limiting role. At the same time, the ball bearing 3 can also play a role in making the whole rotation vertical and horizontal. The combination of the fan blade and the bearing relies on the matching of the groove at the lower end of the fan blade and the outer diameter of the bearing to form a stable structure.

[0060] The fan blade structure is manufactured in one piece. The spiral fan blade starts from the bottom and converges to the upper cap a1 part, forming an overall trapezoidal structure that is narrow at the top and wide at the bottom. The hollow design of the cap a1 facilitates observation of the operating status and reduces the weight of the device. On the other hand, it can act as a barrier when the whole rotates, preventing the blades from detaching from the straight rod 1 and shielding them from dust and debris, thus extending the overall stable operation time of the device. The thrust bearing 4 is located between the cap a1 and the modified structure, which restricts horizontal movement, maintains stability, reduces friction, and facilitates rotation.

[0061] The overall design consists of three parts, excluding the rod-shaped structure. During assembly, the ball bearing 3 at the bottom is first interference-fitted with the rod-shaped structure, then the thrust bearing 4 is placed at the top of the rod-shaped structure, and finally the fan blade structure is hoisted vertically to ensure the stability of the overall structure.

[0062] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A straight rod stabilizing device based on a helical blade structure, the structure of which includes: A straight rod (1), a helical blade structure (2), a ball bearing (3), and a thrust bearing (4) are characterized in that: the outer layer of the straight rod (1) is connected to the helical blade structure (2), and the upper and lower ends of the helical blade structure (2) are movably connected to the ball bearing (3) and the thrust bearing (4). The spiral blade structure (2) is provided with a slot 1 (b1), an upper cover (b2), a groove (b3), a slot 2 (c1), and a lower cover (c2) at its upper and lower positions. The slot 1 (b1) and the upper cover (b2) are an integrated structure. The groove (b3) is opened inside the upper cover (b2) and is an integrated structure with it. The slot 2 (c1) and the surface edge of the lower cover (c2) are an integral part. The upper cover (b2) is set at the upper end of the straight rod (1). The lower cover (c2) is set at the lower end of the straight rod (1). The distance between the lower cover (c2) and the upper cover (b2) is the installation space of the spiral blade structure (2). The upper cover (b2) and the lower cover (c2) will complete the installation of the spiral blade structure (2) through the slot 1 (b1) and the slot 2 (c1).

2. The straight rod stabilizing device based on a helical blade structure according to claim 1, characterized in that: The specific force analysis of the spiral blade structure (2) is as follows: v is the external wind speed, m / s; u is the blade linear velocity, m / s; w is the relative wind speed, m / s; α is the angle of attack, °; FL is the lift subscript, KN; FD is the drag subscript, KN; FU is the resultant force subscript of the lift subscript and the drag subscript; The mechanical relationship between the above parameters is as follows: ; ; ; In the formula: for The component of the blade linear velocity in the normal direction, m / s; for The component in the direction of blade linear velocity, m / s; Furthermore: ； ； ； ； ； In the formula: The lift coefficient of the blade; This represents the drag coefficient of the blade.

3. The straight rod stabilizing device based on a helical blade structure according to claim 1, characterized in that: The thrust bearing (4) is provided with a cap (a1) and a bearing (a2). The cap (a1) covers the top of the bearing (a2) and allows the straight rod (1) to pass through the center at the bottom.

4. A straight rod stabilizing device based on a helical blade structure according to claim 1, characterized in that: The ball bearing (3) is installed at the lower middle end of the straight rod (1) and is on the same vertical center line as the straight rod (1).

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