Rubber-coated rotor of rotor pump

Abstract

The utility model provides a rubber-coated rotor of a rotor pump, which comprises a rotor body made of metal materials, a plurality of protruding parts are formed on the rotor body along the circumferential direction of the rotor body, and the plurality of protruding parts are uniformly distributed along the circumferential direction of the rotor body; the rotor body is coated with a rubber coating layer in the circumferential direction, and the front end face and the rear end face of the rotor body are coated with the front end and the rear end of the rubber coating layer respectively. An embedding hole is formed in the middle of each protruding part in a penetrating mode from front to back, fluid materials of the rubber coating layers enter the embedding holes and are cured to form first embedding blocks embedded in the embedding holes, and the front end and the rear end of each first embedding block are connected with the rubber coating layers located on the front end face and the rear end face of the rotor body into a whole. According to the utility model, the bonding strength of the rubber coating layer and the rotor body can be improved, that is, the rubber coating layer can be effectively prevented from being separated from the rotor body in the high-speed rotation process of the rotor body.

Description

Technical Field

[0001] This utility model relates to the field of rotor technology for rotary pumps, and more specifically, to a rubber-coated rotor for a rotary pump. Background Technology

[0002] The rotor is the core component of a rotary pump. It is installed in the pump chamber and typically transports fluid through the relative rotation of two rotors. To effectively reduce rotor wear in rotary pumps, a rubber-coated rotor has emerged on the market. This rotor body is covered with a rubber layer, which effectively overcomes wear on the rotor body. However, in existing rubber-coated rotor structures, the rubber layer has the disadvantage of low bonding strength with the rotor body. As a result, the rubber layer is prone to detaching from the rotor body during high-speed rotation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rubber-coated rotor for a rotary pump, which can improve the bonding strength between the rubber coating layer and the rotor body, that is, during the high-speed rotation of the rotor body, it can effectively prevent the rubber coating layer from detaching from the rotor body.

[0004] This utility model provides a rubber-coated rotor for a rotary pump, comprising a rotor body made of metal material, with a plurality of protrusions formed along its circumferential direction, the plurality of protrusions being evenly distributed along the circumferential direction of the rotor body; a rubber coating layer covering the rotor body in the circumferential direction, the front and rear ends of the rubber coating layer respectively wrapping around the front and rear ends of the rotor body; an insert hole is provided through the middle of each protrusion from front to back, the fluid material of the rubber coating layer enters the insert hole and solidifies to form a first insert embedded in the insert hole, the front and rear ends of each first insert being connected integrally with the rubber coating layer located on the front and rear ends of the rotor body respectively.

[0005] By adopting the above structure, this utility model can improve the bonding strength between the coating layer and the rotor body by means of the interlocking action of the first insert and the insert hole, and the fact that the front and rear ends of each first insert are respectively connected to the coating layer located on the front and rear ends of the rotor body. That is, during the high-speed rotation of the rotor body, the coating layer can be effectively prevented from detaching from the rotor body.

[0006] In one possible implementation, a first chamfered surface is provided on the inner wall of each end of the recess. The first chamfered surface is used to guide the fluid material of the coating layer so that the fluid material of the coating layer can enter the recess. With this structure, when the coating layer covers the outer peripheral wall of the rotor body and the front and rear faces, the fluid material of the coating layer can flow more smoothly into the recess under the action of the first chamfered surface, thereby reliably forming a first insert for fitting into the recess, and enabling the front and rear ends of the first insert to be reliably connected to the coating layer located on the front and rear faces of the rotor body, respectively.

[0007] In one possible implementation, a plurality of circumferentially spaced grooves are provided on the front and rear faces of the protrusions located outside each recess. The fluid material of the coating layer enters the grooves and solidifies to form a second insert that is embedded in the grooves. With this structure, when the coating layer covers the outer peripheral wall, front face and rear face of the rotor body, the fluid material of the coating layer can flow into the recess and form a second insert for fitting into the recess, thereby further improving the reliability of the coating layer covering the outer peripheral wall, front face and rear face of the rotor body, that is, improving the reliability of the coating layer covering the outer peripheral wall, front face and rear face of the rotor body.

[0008] In one possible implementation, a second chamfered surface is provided on the inner sidewall of each trough opening. The second chamfered surface is used to guide the fluid material of the rubber coating layer so that the fluid material of the rubber coating layer can enter the trough. With this structure, when the rubber coating layer covers the outer peripheral wall, front face and rear face of the rotor body, the fluid material of the rubber coating layer can flow more smoothly into the trough under the action of the second chamfered surface, thereby reliably forming a second insert for fitting into the trough. That is, the second insert can be reliably fitted into the trough, which can improve the reliability of the rubber coating layer covering the outer peripheral wall, front face and rear face of the rotor body.

[0009] In one possible implementation, the outer peripheral wall of the rotor body is provided with a plurality of grooves spaced apart in the circumferential direction around the rotor body. Each groove extends from front to back, and the front and rear ends of each groove extend to the front end face and rear end face of the rotor body, respectively. The fluid material of the rubber coating layer enters each groove and forms a third insert that fits into each groove. With this structure, when the rubber coating layer is applied to the outer peripheral wall of the rotor body, the fluid material of the rubber coating layer can enter each groove and form a third insert that fits into each groove, thereby further improving the bonding strength between the rubber coating layer and the rotor body, and thus improving the reliability of the rubber coating layer on the outer peripheral wall, front end face, and rear end face of the rotor body. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the rotor body;

[0011] Figure 2 This is a schematic diagram of the main structure of the rotor body;

[0012] Figure 3 This is a schematic cross-sectional view of the first structure after the rubber coating layer is combined with the rotor body.

[0013] Figure 4 This is a second cross-sectional view of the structure after the rubber coating is combined with the rotor body. Detailed Implementation

[0014] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0015] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 the embodiments of this application based on the specific circumstances.

[0016] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] See Figure 1-4As shown in the embodiment of this application, a rubber-coated rotor for a rotary pump is disclosed, including a rotor body 1 made of metal material. The rotor body 1 has a plurality of protrusions 11 formed along its circumferential direction, and the plurality of protrusions 11 are evenly distributed along the circumferential direction of the rotor body 1. The rotor body 1 is covered with a rubber layer 2 in the circumferential direction, and the front and rear ends of the rubber layer 2 are respectively wrapped around the front end face and the rear end face of the rotor body 1. An interlocking hole 12 is provided through the middle of each protrusion 11 from front to back. The fluid material of the rubber layer 2 enters the interlocking hole 12 and solidifies to form a first insert 21 embedded in the interlocking hole 12. The front and rear ends of each first insert 21 are respectively connected to the rubber layer 2 located on the front end face and the rear end face of the rotor body 1.

[0019] Each of the front and rear ends of the recess 12 is provided with a first chamfered surface 13 on its inner wall. The first chamfered surface 13 is used to guide the fluid material of the coating layer 2 so that the fluid material of the coating layer 2 can enter the recess 12. With this structure, when the coating layer covers the outer peripheral wall of the rotor body and the front and rear ends, the fluid material of the coating layer can flow more smoothly into the recess under the action of the first chamfered surface, thereby reliably forming a first insert for fitting into the recess, and enabling the front and rear ends of the first insert to be reliably connected to the coating layer located on the front and rear ends of the rotor body, respectively.

[0020] Several grooves 14 are provided on the front and rear faces of the protrusions 11 located outside each recess 12, arranged in a circumferentially spaced manner. The fluid material of the coating layer 2 enters the groove 14 and solidifies to form a second insert 22 that is embedded in the groove 14. With this structure, when the coating layer covers the outer peripheral wall, front face and rear face of the rotor body, the fluid material of the coating layer can flow into the recess and form a second insert for fitting into the recess, thereby further improving the reliability of the coating layer covering the outer peripheral wall, front face and rear face of the rotor body, that is, improving the reliability of the coating layer covering the outer peripheral wall, front face and rear face of the rotor body.

[0021] Each settling tank 14 has a second chamfered surface 15 on its inner sidewall at the opening end. The second chamfered surface 15 is used to guide the fluid material of the rubber coating layer 2 so that the fluid material of the rubber coating layer 2 can enter the settling tank 14. With this structure, when the rubber coating layer covers the outer peripheral wall, front face and rear face of the rotor body, the fluid material of the rubber coating layer can flow more smoothly into the settling tank under the action of the second chamfered surface, thereby reliably forming a second insert for fitting into the settling tank. That is, the second insert can be reliably fitted into the settling tank, which can improve the reliability of the rubber coating layer covering the outer peripheral wall, front face and rear face of the rotor body.

[0022] The outer peripheral wall of the rotor body 1 is provided with a plurality of toothed grooves 16 spaced apart in the circumferential direction around the rotor body 1. Each toothed groove 16 extends from front to back, and the front and rear ends of each toothed groove 16 extend to the front end face and rear end face of the rotor body 1, respectively. The fluid material of the rubber layer 2 enters each of the toothed grooves 16 and forms a third insert 23 that fits into each toothed groove. With this structure, when the rubber layer is covered on the outer peripheral wall of the rotor body, the fluid material of the rubber layer can enter each toothed groove and form a third insert that fits into each toothed groove, thereby further improving the bonding strength between the rubber layer and the rotor body, and improving the reliability of the rubber layer covering the outer peripheral wall, front end face and rear end face of the rotor body.

[0023] The above description is merely a specific embodiment of this application, but the scope of protection of this application 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 application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rubber-coated rotor for a rotary pump, comprising a rotor body (1) made of metal material, wherein the rotor body (1) has a plurality of protrusions (11) formed along its circumferential direction, and the plurality of protrusions (11) are evenly distributed along the circumferential direction of the rotor body (1); the rotor body (1) is covered with a rubber coating layer (2) in the circumferential direction, and the front and rear ends of the rubber coating layer (2) are respectively wrapped around the front end face and the rear end face of the rotor body (1); characterized in that: Each of the protrusions (11) has a through hole (12) extending from front to back in the middle. The fluid material of the coating layer (2) enters the through hole (12) and solidifies to form a first insert (21) embedded in the through hole (12). The front and rear ends of each first insert (21) are respectively connected to the coating layer (2) located on the front end face and rear end face of the rotor body (1).

2. The rubber-coated rotor of the rotary pump according to claim 1, characterized in that: Each of the recessed holes (12) has a first chamfered surface (13) on the inner wall at both ends. The first chamfered surface (13) is used to guide the fluid material of the coating layer (2) so that the fluid material of the coating layer (2) can enter the recessed hole (12).

3. The rubber-coated rotor of the rotary pump according to claim 1 or 2, characterized in that: Several grooves (14) are provided on the front and rear faces of the protrusions (11) located outside each of the holes (12). The fluid material of the coating layer (2) enters the groove (14) and solidifies to form a second insert (22) embedded in the groove (14).

4. The rubber-coated rotor of the rotary pump according to claim 3, characterized in that: Each of the settling tanks (14) has a second chamfered surface (15) on the inner sidewall of the opening end. The second chamfered surface (15) is used to guide the fluid material of the coating layer (2) so that the fluid material of the coating layer (2) can enter the settling tank (14).

5. The rubber-coated rotor of the rotary pump according to claim 1, 2, or 4, characterized in that: The outer peripheral wall of the rotor body (1) is provided with a number of tooth grooves (16) spaced apart around the rotor body (1) in the circumferential direction. Each tooth groove (16) extends from front to back, and the front and rear ends of each tooth groove (16) extend to the front end face and rear end face of the rotor body (1) respectively. The fluid material of the rubber layer (2) enters into each tooth groove (16) and forms a third insert (23) that fits into each tooth groove (16).

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