Turbine flowmeter impeller

Abstract

The turbine flowmeter impeller is characterized in that the turbine flowmeter impeller comprises a left half shaft, a right half shaft and an impeller body, the left half shaft comprises a left connecting table and a left shaft body, the right half shaft comprises a right connecting table, a right shaft body and a connecting body, the diameter of the connecting body is smaller than that of the left connecting table, and a limiting groove is formed between the left connecting table and the right connecting table; the impeller body comprises a hub, a plurality of wheel blades are evenly distributed on the outer circumferential face of the hub, a plurality of connecting lugs are arranged on the two end faces of the hub, connecting pieces are arranged on the connecting lugs, fixing grooves corresponding to the connecting lugs are formed in the left connecting table and the right connecting table respectively, fixing holes are formed in the fixing grooves, and the connecting lugs are fixed to the fixing holes through the connecting pieces. And the connecting piece at the left end of the hub fixes the connecting lug in the fixing hole and also fixes the connecting body of the right half axle. The combined structure design is adopted, the impeller can be independently replaced after being damaged, the left half shaft and the right half shaft can be repeatedly used, the use cost is reduced, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] This invention belongs to the field of flow meters, and in particular relates to a turbine flow meter impeller. Background Technology

[0002] A gas turbine flow meter is an instrument used to accurately measure the flow rate of gas in pipelines. It is widely used in petroleum, chemical, power, and industrial boiler monitoring fields, offering advantages such as high accuracy, good repeatability, wide rangeability, small size, and simple structure. It is particularly suitable for trade metering and measuring gas flow. The impeller structure is a crucial component of the turbine flow meter. When fluid flows through the sensor housing, the impeller blades are at an angle to the flow direction. The force of the fluid causes the blades to rotate due to the force of the fluid. After overcoming frictional torque and fluid resistance, the blades rotate, resulting in a relatively severe impact on the impeller. In existing technologies, the impeller shaft and blades are integrated, requiring replacement of the entire unit even if only a portion is damaged, leading to material waste and high operating costs. Furthermore, blade damage is the most common issue during impeller use, while shaft damage is rare. Therefore, it is necessary to improve the existing turbine flow meter impeller. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the deficiencies in the prior art and proposes a turbine flow meter impeller.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A turbine flow meter impeller includes a left half-shaft, a right half-shaft, and an impeller body between them. The left half-shaft includes a left connecting platform and a left shaft body, and the right half-shaft includes a right connecting platform and a right shaft body. The end of the right connecting platform facing the left connecting platform is provided with a connector extending into the left connecting platform. The diameter of the connector is smaller than the diameter of the left connecting platform, forming a limiting groove between the left and right connecting platforms. The impeller body includes a hub, with a plurality of blades evenly distributed on the outer circumference of the hub. Both ends of the hub are provided with a plurality of connecting ears, and connecting members are provided on the connecting ears. The left and right connecting platforms are respectively provided with fixing grooves corresponding to the connecting ears, and fixing holes are provided on the fixing grooves. The connecting members fix the connecting ears to the fixing holes. In addition, the connecting member at the left end of the hub fixes the connecting ears to the fixing holes and also fixes the connector of the right half-shaft.

[0006] Furthermore, the connecting lugs at both ends of the hub are arranged symmetrically.

[0007] Furthermore, each end of the wheel hub is provided with 3-5 connecting lugs.

[0008] Furthermore, the end face of the left connecting platform facing the right half-shaft is provided with a connecting body mating groove.

[0009] Furthermore, the end of the connector that extends into the left connecting platform is provided with a connector fixing hole.

[0010] Furthermore, the fixing hole of the connector is a threaded hole.

[0011] Furthermore, the outer diameter of the hub, the outer diameter of the left connecting platform, and the outer diameter of the right connecting platform are all the same.

[0012] Furthermore, the length of the left connecting platform in the axial direction is the same as the length of the right connecting platform in the axial direction.

[0013] Furthermore, the axial length of the hub is greater than the axial length of the left connecting platform.

[0014] Furthermore, the axial length of the hub is 1.5-2.5 times the axial length of the left connecting platform.

[0015] Compared with existing technologies, the present invention has the following advantages:

[0016] This invention features a simple and reasonable structure. The connecting ear and the fixing groove cooperate to achieve torque transmission, thereby reducing the shear force on the connecting parts and ensuring the service life of the impeller. Due to the combined structure design of the left half shaft, right half shaft and impeller body, the impeller can be replaced after damage. The left half shaft and right half shaft can be reused, reducing the cost of use and saving energy and protecting the environment. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure created by this invention;

[0019] Figure 2 A schematic diagram of the impeller body in the present invention;

[0020] Figure 3 for Figure 1 A schematic diagram after removing the impeller body;

[0021] Figure 4 This invention provides a front view of the impeller body after its removal.

[0022] Figure 5 for Figure 4 A partial sectional view;

[0023] Figure 6 for Figure 5 A schematic diagram of the left half-axis portion. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention 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 on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] A turbine flow meter impeller, such as Figures 1 to 5 As shown, the assembly includes a left half-shaft 1, a right half-shaft 2, and an impeller body 3 between them. The left half-shaft includes a left connecting platform 4 and a left shaft body 5, while the right half-shaft includes a right connecting platform 6 and a right shaft body 7. The right connecting platform has a connecting body 8 extending into the left connecting platform at one end facing the left connecting platform. The diameter of this connecting body is smaller than the diameter of the left connecting platform, forming a limiting groove 9 between the two connecting platforms. For example, the axial length of the left connecting platform is the same as the axial length of the right connecting platform.

[0029] The impeller body includes a hub 10, with a plurality of blades 11 evenly distributed on the outer circumference of the hub. Both ends of the hub have a plurality of connecting lugs 12, each with a connecting hole 13, into which a connector 14 is installed. Preferably, the connecting lugs at both ends of the hub are symmetrically arranged. For example, each end of the hub has 3-5 connecting lugs.

[0030] The left and right connecting platforms are respectively provided with fixing grooves 14 corresponding to the connecting ears. The fixing grooves are provided with fixing holes 15. The connecting parts fix the connecting ears to the fixing holes. At the same time, the connecting parts at the left end of the hub fix the connecting ears to the fixing holes and also fix the connecting body of the right half shaft.

[0031] In an optional embodiment, such as Figure 6 As shown, the end face of the left connecting platform facing the right half-shaft is provided with a connecting body mating groove 15. One end of the connecting body extending into the connecting body mating groove of the left connecting platform is provided with a connecting body fixing hole. For example, the connecting body fixing hole is a threaded hole.

[0032] In an optional embodiment, the outer diameter of the hub, the outer diameter of the left connecting platform, and the outer diameter of the right connecting platform are all the same. The axial length of the hub is greater than the axial length of the left connecting platform. For example, the axial length of the hub is 1.5-2.5 times the axial length of the left connecting platform.

[0033] This invention features a simple and reasonable structure. The connecting ear and the fixing groove cooperate to achieve torque transmission, thereby reducing the shear force on the connecting parts and ensuring the service life of the impeller. Due to the combined structure design of the left half shaft, right half shaft and impeller body, the impeller can be replaced after damage. The left half shaft and right half shaft can be reused, reducing the cost of use and saving energy and protecting the environment.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A turbine flow meter impeller, characterized in that: The device includes a left half-shaft, a right half-shaft, and an impeller body between them. The left half-shaft includes a left connecting platform and a left shaft body, and the right half-shaft includes a right connecting platform and a right shaft body. The end of the right connecting platform facing the left connecting platform is provided with a connector that extends into the left connecting platform. The diameter of the connector is smaller than the diameter of the left connecting platform, forming a limiting groove between the two connecting platforms. The impeller body includes a hub, with several blades evenly distributed on the outer circumference of the hub. Several connecting ears are provided on both ends of the hub, and connecting parts are provided on the connecting ears. The left and right connecting platforms are respectively provided with fixing grooves corresponding to the connecting ears, and fixing holes are provided on the fixing grooves. The connecting parts fix the connecting ears to the fixing holes. In addition, the connecting part at the left end of the hub fixes the connecting ears to the fixing holes and also fixes the connector body of the right half-shaft.

2. The turbine flow meter impeller according to claim 1, characterized in that: The connecting lugs at both ends of the hub are arranged symmetrically.

3. The turbine flow meter impeller according to claim 1, characterized in that: The wheel hub has 3-5 connecting lugs at each end.

4. The turbine flow meter impeller according to claim 1, characterized in that: The end face of the left connecting platform facing the right half-shaft is provided with a connecting body mating groove.

5. A turbine flow meter impeller according to claim 1 or 4, characterized in that: The connector has a connector fixing hole at one end that extends into the left connector platform.

6. The turbine flow meter impeller according to claim 5, characterized in that: The fixing hole of the connector is a threaded hole.

7. The turbine flow meter impeller according to claim 1, characterized in that: The outer diameter of the wheel hub, the outer diameter of the left connecting platform, and the outer diameter of the right connecting platform are all the same.

8. The turbine flow meter impeller according to claim 1, characterized in that: The axial length of the left connecting platform is the same as the axial length of the right connecting platform.

9. A turbine flow meter impeller according to claim 1 or 8, characterized in that: The axial length of the hub is greater than the axial length of the left connecting platform.

10. The turbine flow meter impeller according to claim 9, characterized in that: The axial length of the hub is 1.5-2.5 times the axial length of the left connecting platform.

Images