Self-priming three-blade helical rubber rotor

Abstract

The utility model discloses a self -priming three -leaf spiral rubber rotor belongs to pump equipment parts technical field. Including rotor main part, and rotor main part is formed by three -leaf spiral blade, and three -leaf spiral blade evenly distributes in the circumference surface of rotor main part, and the included angle between adjacent spiral blade is 120 DEG, and the outside of rotor main part is wrapped up with rubber, and the center of rotor main part is provided with the mounting hole of the length of whole rotor main part, and three -leaf spiral blade is evenly distributed with 120 DEG included angle, and can form high vacuum degree fast, realizes the efficient suction of liquid, and the conveying process is almost without pulsation, ensures the constant flow, and the outside of rotor main part is wrapped up with rubber, can resist the corrosion of acidic, alkaline and other corrosive medium, compared with metal rotor, the service life is prolonged significantly, and the elastic property of rubber material can also buffer the solid particle impact in liquid, reduces the abrasion risk, especially suitable for conveying the slurry or sewage containing impurities.

Description

Technical Field

[0001] This utility model relates to the technical field of pump equipment components, specifically a self-priming three-lobe spiral rubber rotor. Background Technology

[0002] Pumps are widely used in various liquid transportation scenarios, such as petrochemicals, wastewater treatment, and food processing. Among them, self-priming pumps can automatically draw liquid from a low level and transport it without additional priming water, greatly improving ease of use and work efficiency. The three-lobe helical rotor plays a crucial role in the pump's operation, cooperating with the pump casing to achieve liquid intake, compression, and discharge. Traditional rotors have many problems. For example, metal rotors are prone to wear and corrosion when exposed to media containing impurities or corrosive substances, leading to a shortened rotor lifespan. This, in turn, affects the overall performance and stability of the pump, increasing maintenance costs and equipment downtime. While some ordinary rubber rotors improve corrosion resistance to some extent, their structural design is not ideal, resulting in limited self-priming capabilities that cannot meet the demands for rapid and efficient liquid intake under demanding operating conditions. Utility Model Content

[0003] The purpose of this invention is to provide a self-priming three-lobe helical rubber rotor to solve the problems mentioned in the background art.

[0004] In view of the above problems, the technical solution proposed by this utility model is as follows: A self-priming three-lobe helical rubber rotor includes a rotor body composed of three helical blades evenly distributed on the circumferential surface of the rotor body, with an included angle of 120° between adjacent helical blades. The rotor body is externally wrapped with rubber, and a mounting hole penetrating the entire length of the rotor body is provided at the center of the rotor body. The symmetrical and uniform distribution of the three helical blades ensures uniform pressure distribution within the pump chamber during rotor rotation, reducing pulsation fluctuations; enhancing self-priming capability and conveying efficiency; and the rubber coating improves the rotor's corrosion resistance and wear resistance, making it suitable for high-viscosity and corrosive media.

[0005] Furthermore, the length-to-diameter ratio of the rotor body is (3-5):1. The length-to-diameter ratio (3-5):1 design can increase the contact length between the rotor and the liquid, improve the liquid absorption volume and compression efficiency, and is especially suitable for the stable transportation of high viscosity media, avoiding insufficient self-priming capacity due to the rotor being too short.

[0006] Furthermore, the edge of the helical blade contacts the inner wall of the pump casing.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: the self-priming three-bladed spiral rubber rotor has three spiral blades evenly distributed at a 120° angle, which can quickly form a high vacuum and achieve efficient liquid intake; and the conveying process is almost pulsation-free, ensuring constant flow rate; the rotor body is wrapped with rubber, which can resist the erosion of corrosive media such as acids and alkalis, and significantly extend the service life compared with metal rotors; the elastic properties of rubber material can also buffer the impact of solid particles in the liquid, reduce the risk of wear, and is especially suitable for conveying slurries or sewage containing impurities. Attached Figure Description

[0008] Figure 1 This is a first three-dimensional structural schematic diagram of the self-priming three-lobe helical rubber rotor disclosed in an embodiment of the present utility model; Figure 2 This is a side view of the self-priming three-lobe helical rubber rotor disclosed in an embodiment of the present invention.

[0009] In the diagram: 1. Rotor body; 2. Helical blades; 3. Mounting holes. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Please see Figures 1-2 This utility model provides a technical solution: a self-priming three-lobe helical rubber rotor, including a rotor body 1, which is composed of three-lobe helical blades 2. The three-lobe helical blades 2 are evenly distributed on the circumferential surface of the rotor body 1, and the included angle between adjacent helical blades 2 is 120°. The rotor body 1 is wrapped with rubber. The center of the rotor body 1 is provided with a mounting hole 3 that runs through the entire length of the rotor body 1. A slot is opened on one side of the inner wall of the mounting hole 3. When the rotor rotates, the three-lobe helical blades 2 and the pump casing form multiple sealed chambers. The volume of the chambers changes rapidly, forming a high vacuum to draw in liquid.

[0012] As an embodiment of this utility model, the edge of the spiral blade 2 contacts the inner wall of the pump casing, and the edge of the spiral blade 2 forms a "line contact" seal with the inner wall of the pump casing. When the rotor rotates, the protrusion 3 slides along the inner wall of the pump casing, and liquid sealing is achieved through the tiny gap. At the same time, the lubricating medium can fill the gap to further reduce friction.

[0013] As an embodiment of this utility model, the spiral blade 2 has a spiral angle range of 15°-30°. The spiral angle determines the axial propulsion speed of the liquid. When the angle is small, the self-priming ability is strong, and when the angle is large, the conveying pressure is high. This also makes the outlet side structure more robust and adaptable to the high-pressure environment after liquid compression.

[0014] As an embodiment of this utility model, the length to diameter ratio of the rotor body 1 is further (3-5):1. The longer rotor body 1 allows the liquid to stay in the pump chamber for a longer time, and the spiral blades 2 can fully squeeze and propel the liquid to achieve a continuous process of "high vacuum intake → progressive compression → high pressure discharge".

[0015] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

Claims

1. A self-priming three-lobe helical rubber rotor, characterized in that, The rotor body (1) is composed of three-bladed helical blades (2). The three helical blades (2) are evenly distributed on the circumferential surface of the rotor body (1). The included angle between adjacent helical blades (2) is 120°. The rotor body (1) is wrapped with rubber. The center of the rotor body (1) is provided with a mounting hole (3) that runs through the entire length of the rotor body (1). A slot is provided on one side of the inner wall of the mounting hole (3).

2. The self-priming three-lobe helical rubber rotor according to claim 1, characterized in that, The spiral angle of the spiral blade (2) ranges from 15° to 30°.

3. The self-priming three-lobe helical rubber rotor according to claim 1, characterized in that, The length to diameter ratio of the rotor body (1) is (3-5):

1.

4. The self-priming three-lobe helical rubber rotor according to claim 1, characterized in that, The edge of the spiral blade (2) is in contact with the inner wall of the pump casing.

Images