Flowmeter impeller capable of reducing abrasion

Abstract

The utility model relates to the technical field of flow meters, in particular to a wear-reducing impeller for a flow meter, which comprises a flow meter body, two ends of the flow meter body are respectively communicated with a water inlet end and a water outlet end, a flow direction cylinder is arranged in the flow meter body, and symmetrical support cylinders are arranged in the flow direction cylinder. Symmetrical connecting blocks are arranged on the outer wall of the supporting cylinder, the other ends of the connecting blocks are connected with the inner wall of the flow direction cylinder, a mounting groove used for mounting the abutting column is formed in the supporting cylinder, and an impeller is rotationally arranged in the flow direction cylinder. The abutting columns made of high-hardness wear-resistant materials and the rotating shaft made of the wear-resistant materials are installed in the supporting cylinder to achieve point contact, the contact area is reduced, friction resistance is reduced, the impeller rotates more smoothly, and therefore when water flow flowing through the impeller body is small, the impeller can still rotate smoothly, the precision of the flowmeter is improved, and the service life of the flowmeter is prolonged. And meanwhile, the abrasion of the rotating shaft during rotation can be further reduced by utilizing the rollers, and the service life of the impeller is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, and particularly relates to an impeller for a flow meter that reduces wear. Background Technique

[0002] Flow meters are one of the components of metrology science and technology, and they are closely related to the national economy, national defense construction, and scientific research. Doing a good job in this work plays an important role in ensuring product quality, improving production efficiency, and promoting the development of science and technology. Especially in the current era of energy crisis and increasing industrial production automation, the status and role of flow meters in the national economy are even more obvious.

[0003] The published document with the publication number CN218955823U discloses an impeller for a turbine flow meter, which relates to the technical field of liquid turbine flow meters and includes a front guide frame, a rear guide frame, and an impeller. The front guide frame is located in front of the impeller, and the impeller is located in front of the rear guide frame. The front guide frame, the rear guide frame, and the impeller are all arranged on the transmission shaft. The impeller includes a hub, blades, and a wheel cover. The hub is connected to the transmission shaft, the blades are connected to the hub, and the outer side of the blades is connected to the wheel cover. The utility model adopts an impeller for a turbine flow meter with the above structure, enabling the turbine flow meter to maintain calibration characteristics for a long time, reducing damage to the impeller, reducing replacements, improving the stability of the impeller, and improving work efficiency.

[0004] However, in order to ensure the accuracy of flow measurement, the friction force must be reduced when the impeller rotates, and at the same time, it must have wear-resistant properties to extend its service life. However, during the use of the above device, since the impeller needs to rotate continuously for a long time, the wear of the impeller is accelerated, which will ultimately lead to a shortened service life of the impeller. Summary of the Invention

[0005] In view of the above problems, an impeller for a flow meter that reduces wear is provided. By using a contact post made of a high-hardness wear-resistant material installed inside the support cylinder and a rotating shaft made of a wear-resistant material to achieve point contact, the contact area is reduced, the frictional resistance is reduced, and the impeller rotates more smoothly. Thus, when the water flow passing through the impeller body is small, the impeller can still rotate smoothly, improving the accuracy of the flow meter. At the same time, the roller can further reduce the wear of the rotating shaft during rotation, increasing the service life of the impeller.

[0006] To solve the problems of the prior art, the utility model provides an impeller for a flowmeter that reduces wear, including a flowmeter body. The two ends of the flowmeter body are respectively communicated with a water inlet end and a water outlet end. A flow direction cylinder is arranged inside the flowmeter body, and symmetric support cylinders are arranged inside the flow direction cylinder. Symmetric connecting blocks are arranged on the outer wall of the support cylinder, and the other ends of the connecting blocks are connected to the inner wall of the flow direction cylinder. An installation groove for installing a contact column is opened inside the support cylinder. An impeller is rotatably arranged inside the flow direction cylinder. Rotating shafts are arranged on both sides of the impeller, and the rotating shafts extend into the support cylinder and abut against one end of the contact column.

[0007] Preferably, an annular groove is opened on the inner wall of the support cylinder, and several rollers that abut against the surface of the rotating shaft are rotatably arranged inside the annular groove.

[0008] Preferably, an annular block is arranged at one end of the flow direction cylinder communicated with the water inlet end, and several spring telescopic rods are arranged on the side wall of the annular block. A filter plate is arranged at the telescopic end of the spring telescopic rod.

[0009] Preferably, through holes for the movement of extrusion rods are opened in several of the connecting blocks. One end of the extrusion rod is connected to the side wall of the filter plate, and a contact part is arranged at the other end of the extrusion rod. The contact part is in the shape of a semi-sphere.

[0010] Preferably, a limiting disk for limiting is arranged outside the extrusion rod.

[0011] Preferably, contact blocks that abut against the contact part are symmetrically arranged outside the rotating shaft.

[0012] The beneficial effects of the utility model compared with the prior art are as follows:

[0013] By realizing point contact between the contact column made of a high-hardness wear-resistant material installed inside the support cylinder and the rotating shaft made of a wear-resistant material, the contact area is reduced, the frictional resistance is lowered, and the impeller rotates more smoothly. Thus, when the water flow passing through the impeller body is small, the impeller can still rotate smoothly, improving the accuracy of the flowmeter. At the same time, the rollers can further reduce the wear of the rotating shaft during rotation, increasing the service life of the impeller.

[0014] When the rotating shaft rotates, it drives the contact block to rotate. When the contact block rotates, it will squeeze the contact part, thereby driving the extrusion rod to squeeze the filter plate. The filter plate can filter out solid particles and impurities in the liquid to reduce their impact and wear on the impeller. At the same time, the spring telescopic rod and the extrusion rod can keep the filter plate in a vibrating state to prevent the filter holes inside the filter plate from being blocked. Description of the Drawings

[0015] Figure 1It is a schematic diagram of the overall structure of an impeller for a flowmeter that reduces wear.

[0016] Figure 2 It is a schematic diagram of the internal structure of the flowmeter in the impeller for a flowmeter that reduces wear.

[0017] Figure 3 It is a schematic diagram of the internal structure of the flow direction cylinder in the impeller for a flowmeter that reduces wear.

[0018] Figure 4 It is a schematic diagram of the structure of some components in the impeller for a flowmeter that reduces wear.

[0019] Figure 5 It is an enlarged schematic diagram of part A in the impeller for a flowmeter that reduces wear.

[0020] Figure 6 It is a schematic diagram of the structure of the contact part in the impeller for a flowmeter that reduces wear.

[0021] In the figure, the reference numerals are: 1, flowmeter body; 2, water inlet end; 3, water outlet end; 4, flow direction cylinder; 5, impeller; 6, rotating shaft; 7, support cylinder; 8, connecting block; 9, contact block; 10, filter plate; 11, annular block; 12, abutting column; 13, roller; 14, spring telescopic rod; 15, extrusion rod; 16, limiting disc; 17, contact part. Specific implementation manners

[0022] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0023] As Figures 1 to 6 shown, the present invention provides:

[0024] An impeller for a flowmeter that reduces wear, including a flowmeter body 1, a water inlet end 2 and a water outlet end 3 are respectively communicated at both ends of the flowmeter body 1, a flow direction cylinder 4 is arranged inside the flowmeter body 1, symmetric support cylinders 7 are arranged inside the flow direction cylinder 4, symmetric connecting blocks 8 are arranged on the outer wall of the support cylinder 7, the other end of the connecting block 8 is connected to the inner wall of the flow direction cylinder 4, an installation groove for installing an abutting column 12 is opened inside the support cylinder 7, an impeller 5 is rotatably arranged inside the flow direction cylinder 4, rotating shafts 6 are arranged on both sides of the impeller 5, and the rotating shafts 6 extend into the support cylinder 7 and abut against one end of the abutting column 12.

[0025] By installing the abutting column 12 made of high-hardness wear-resistant material inside the support cylinder 7 and the rotating shaft 6 made of wear-resistant material, precise point contact between the two is achieved. The contact area between the abutting column 12 and the rotating shaft 6 is reduced, thereby significantly reducing the frictional resistance and laying a solid foundation for the smooth rotation of the impeller 5. Even when the water flow through the main body of the impeller 5 is small, this low-friction environment ensures that the impeller 5 can maintain a stable and continuous rotation, effectively avoiding the jamming or stagnation phenomena that may occur in traditional flow meters at low flow rates. Further analysis shows that the selection of high-hardness wear-resistant material not only enhances the durability of the abutting column 12 but also significantly improves its anti-wear ability during long-term use. At the same time, the rotating shaft 6 made of wear-resistant material also exhibits excellent durability. The two complement each other and jointly extend the overall service life of the flow meter. In addition, the precise point contact design also brings another significant advantage: improving the measurement accuracy of the flow meter. Due to the reduction of frictional resistance and the increase in the smoothness of the rotation of the impeller 5, the flow meter can more accurately capture minute flow rate changes when measuring water flow, thereby achieving higher-precision flow monitoring.

[0026] As Figure 5 and Figure 6 shown, an annular groove is formed on the inner wall of the support cylinder 7, and a plurality of rollers 13 that are in contact with the surface of the rotating shaft 6 are rotatably arranged inside the annular groove.

[0027] The use of the rollers 13 can further reduce the wear of the rotating shaft 6 during rotation, thereby significantly increasing the service life of the impeller 5. It can convert sliding friction into rolling friction during the rotation process, greatly reducing the heat and wear generated by direct friction, and ensuring that the rotating shaft 6 receives a uniform and continuous rolling force during rotation instead of intermittent impact forces. This continuous rolling force not only reduces the friction area but also makes the wear process more uniform, avoiding local excessive wear. At the same time, the selection of the material of the rollers 13 is also crucial. Materials with high wear resistance and low friction coefficients can further reduce the wear rate and improve the service life of the rollers 13. The impeller 5 can enjoy a more stable driving force during rotation, reducing fatigue damage caused by vibration and impact. In addition, due to the significant reduction in the wear of the rotating shaft 6 by the rollers 13, the impeller 5 can maintain its original accuracy and performance for a longer period, thereby achieving a significant increase in service life. Using the roller 13 design to reduce the wear of the rotating shaft 6 reduces the maintenance cost of the equipment.

[0028] As Figure 6 shown, an annular block 11 is provided at one end of the flow direction cylinder 4 that is connected to the water inlet end 2, and a plurality of spring telescopic rods 14 are provided on the side wall of the annular block 11, and a filter plate 10 is provided at the telescopic end of the spring telescopic rod 14.

[0029] The filter plate 10 effectively intercepts solid particles and impurities in the liquid, allowing pure liquid to pass through smoothly. This process not only improves the purity of the liquid but, more importantly, significantly reduces the impact and wear on the impeller 5 during rotation. Specifically, when the impure liquid flows through the filter plate 10, the impurities are trapped on the surface of the filter plate 10, while the clean liquid continues to flow. This results in a purer liquid entering the pump body and impacting the impeller 5, reducing the chance of direct contact between the impeller 5 and impurities and the risk of wear. The design and material selection of the filter plate 10 also have a significant impact on its filtration performance and service life. To ensure that the filter plate 10 maintains excellent filtration performance even in harsh operating environments, manufacturers typically use corrosion-resistant and wear-resistant materials such as stainless steel and ceramic. Furthermore, the pore size of the filter plate 10 is precisely adjusted according to the actual application scenario to achieve accurate interception of impurities of different particle sizes. In short, the filter plate 10 filters out solid particles and impurities from the liquid, effectively protecting the impeller 5 from impact and wear. This not only helps extend the service life of pump equipment and reduce maintenance costs, but also improves the stability and efficiency of the entire production process.

[0030] like Figure 6 As shown, several connecting blocks 8 have through holes therein for the movement of the extrusion rod 15 , one end of the extrusion rod 15 is connected to the side wall of the filter plate 10 , and the other end of the extrusion rod 15 is provided with a resistance portion 17 , which is semi-spherical.

[0031] To ensure effective filtration and extend the service life of the filter plate 10, a spring-loaded telescopic rod 14 and a squeeze rod 15 are used to maintain the filter plate 10 in a vibrating state. This effectively prevents clogging of the small pores within the filter plate 10, known as the filter pores, which can affect filtration efficiency. Pore clogging is typically caused by the accumulation of solid particles in the pores during the filtration process. The vibration action loosens these particles and causes them to fall, thereby keeping the filter pores unobstructed.

[0032] like Figure 6 As shown, a limiting plate 16 for limiting position is provided on the outside of the extrusion rod 15 .

[0033] The limit plate 16 prevents the extended portion of the extrusion rod 15 from interfering with the interference block 9 .

[0034] like Figure 3 and Figure 5 As shown, the outside of the rotating shaft 6 is symmetrically provided with a resisting block 9 that resists the resisting portion 17 .

[0035] The rotating abutment block 9 can intermittently abut the extrusion rod 15, so that the filter plate 10 is in a vibrating state.

[0036] The above embodiments only illustrate one or several implementation manners of the impeller for a flowmeter of the present utility model for reducing wear. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the appended claims.

Claims

1. An impeller for a flowmeter that reduces wear, characterized in that, It includes a flowmeter body (1), with a water inlet end (2) and a water outlet end (3) respectively connected to both ends of the flowmeter body (1). A flow direction cylinder (4) is arranged inside the flowmeter body (1). Symmetrical support cylinders (7) are arranged inside the flow direction cylinder (4). Symmetrical connecting blocks (8) are arranged on the outer wall of the support cylinder (7), and the other end of the connecting block (8) is connected to the inner wall of the flow direction cylinder (4). An installation groove for installing a contact column (12) is formed inside the support cylinder (7). An impeller (5) is rotatably arranged inside the flow direction cylinder (4). Rotating shafts (6) are arranged on both sides of the impeller (5), and the rotating shafts (6) extend into the support cylinder (7) and abut against one end of the contact column (12).

2. The impeller for a flowmeter for reducing wear according to claim 1, wherein An annular groove is formed on the inner wall of the support cylinder (7), and several rollers (13) that are in contact with the surface of the rotating shaft (6) are rotatably arranged inside the annular groove.

3. The impeller for a flowmeter for reducing wear according to claim 1, characterized in that, An annular block (11) is arranged at the end of the flow direction cylinder (4) connected to the water inlet end (2). Several spring telescopic rods (14) are arranged on the side wall of the annular block (11), and a filter plate (10) is arranged at the telescopic end of the spring telescopic rod (14).

4. A flowmeter impeller for reducing wear according to claim 1, characterized in that, Through holes for the movement of the extrusion rod (15) are formed inside several of the connecting blocks (8). One end of the extrusion rod (15) is connected to the side wall of the filter plate (10), and a contact part (17) is arranged at the other end of the extrusion rod (15). The contact part (17) is semi-spherical.

5. The impeller for a flowmeter for reducing wear according to claim 4, characterized in that, A limiting disk (16) for limiting is arranged outside the extrusion rod (15).

6. The impeller for a flowmeter for reducing wear according to claim 1, wherein, Contact blocks (9) that are in contact with the contact part (17) are symmetrically arranged outside the rotating shaft (6).

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