Ceramic impeller hub structure of centrifugal slurry pump

Abstract

The utility model discloses a ceramic impeller hub structure of a centrifugal slurry pump, which relates to the technical field of centrifugal pumps and comprises a ceramic impeller body, a clamping hole is arranged at one end of the ceramic impeller body, an impeller metal framework is mounted at one end of the clamping hole, and an impeller cover is mounted at the outer end of the impeller metal framework. According to the ceramic impeller, the ceramic impeller body and the impeller metal framework are arranged, the impeller metal framework is screwed into the interior of the ceramic impeller body clockwise through the clamping holes, the two problems of torque transmission and axial force transmission can be solved at the same time through the connection, installation and operation are simpler, and the convenience of installation and use of the device is improved; by arranging the ceramic impeller body and the impeller cover, the impeller cover is installed in the ceramic impeller body, the impeller cover can prevent the impeller metal framework from falling off, the impeller metal framework is completely wrapped in the ceramic, gaps among all parts are filled with ceramic glue, infection of external substances is effectively prevented, and the corrosion resistance effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a ceramic impeller hub structure of a centrifugal slurry pump. Background Art

[0002] In view of the current market application of ceramics in slurry pump impellers, there is a problem of corrosion resistance in a highly corrosive working environment. In addition, since the impeller of the centrifugal slurry pump is connected to the shaft through threads, the connection between the impeller metal frame and the ceramic impeller needs to overcome torque and axial force. Therefore, a centrifugal slurry pump ceramic impeller hub structure is needed.

[0003] The existing patent document with the technical announcement number CN220060005U provides an impeller structure of a ceramic slurry pump, including an impeller body, on which an axial hole is provided; a metal frame is provided between the impeller body and the axial hole; and a silicon carbide ceramic cover plate is provided on the metal frame. The outer ring of the axial hole is provided with a silicon carbide outer hole sleeve to increase the structural strength. The silicon carbide ceramic cover plate is embedded in the impeller body, and the metal frame is pressed into the middle layer to increase the overall structural stability. However, when the CN220060005U technology is in operation, it cannot effectively improve the convenience of installation and use of the device, and it cannot improve the corrosion resistance of the device. Therefore, a centrifugal slurry pump ceramic impeller hub structure is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a ceramic impeller hub structure for a centrifugal slurry pump to solve the problem that the existing ceramic impeller hub structure of a slurry pump cannot effectively improve the convenience of installation and use of the device when in use, and cannot improve the corrosion resistance of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal slurry pump ceramic impeller hub structure, comprising a ceramic impeller body, a clamping hole is opened at one end of the ceramic impeller body, an impeller metal frame is installed at one end of the clamping hole, an impeller cover is installed at the outer end of the impeller metal frame, the impeller metal frame is clamped and connected to the ceramic impeller body through the clamping hole, and the inner end diameter of the clamping hole is larger than the outer end diameter of the impeller metal frame, the impeller cover is clamped and connected to the ceramic impeller body, and the inner end surface of the impeller cover is tightly fitted with the outer end surface of the impeller metal frame.

[0006] Preferably, the middle end of the impeller metal skeleton is provided with a threaded hole, and one end of the impeller metal skeleton is provided with a "four-leaf clover" shape.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. The utility model provides a ceramic impeller body and an impeller metal frame, and the impeller metal frame is screwed clockwise into the clamping hole to the inside of the ceramic impeller body. This connection can solve the two problems of transmitting torque and axial force at the same time. The working effect is intuitive, and the installation operation is simpler, which improves the convenience of installation and use of the device;

[0009] 2. The utility model provides a ceramic impeller body and an impeller cover. After the impeller metal frame is screwed into the ceramic impeller body, the impeller cover is installed into the ceramic impeller body. The impeller cover can prevent the impeller metal frame from falling off and completely wrap the impeller metal frame inside the ceramic, so that the corrosion resistance is further improved. The gaps between the parts are filled with ceramic glue, so that the impeller metal frame and the impeller cover are installed on the ceramic impeller body without gaps, effectively preventing the invasion of foreign substances and improving the corrosion resistance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front cross-sectional view of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of the utility model;

[0012] Figure 3 It is a schematic structural diagram of the utility model from the side.

[0013] In the figure: 1. Ceramic impeller body; 2. Clamp hole; 3. Impeller metal frame; 4. Impeller cover. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0015] The following describes an embodiment of the utility model based on its overall structure.

[0016] See also Figure 1-3A centrifugal slurry pump ceramic impeller hub structure includes a ceramic impeller body 1, a clamping hole 2 is opened at one end of the ceramic impeller body 1, an impeller metal skeleton 3 is installed at one end of the clamping hole 2, and an impeller cover 4 is installed at the outer end of the impeller metal skeleton 3. The impeller metal skeleton 3 is clamped and connected with the ceramic impeller body 1 through the clamping hole 2, and the inner end diameter of the clamping hole 2 is larger than the outer end diameter of the impeller metal skeleton 3. The impeller cover 4 is clamped and connected with the ceramic impeller body 1, and the inner end surface of the impeller cover 4 is tightly fitted with the outer end surface of the impeller metal skeleton 3. The middle end of the impeller metal skeleton 3 is set with a threaded hole, and one end of the impeller metal skeleton 3 is set in a "four-leaf clover" shape. The impeller metal skeleton 3 is screwed into the clamping hole by clockwise rotation. 2 to the inside of the ceramic impeller body 1, this connection can solve the two problems of transmitting torque and axial force at the same time, the working effect is intuitive, and the installation operation is simpler, which improves the convenience of installation and use of the device, and after the impeller metal skeleton 3 is screwed into the ceramic impeller body 1, the impeller cover 4 is installed into the ceramic impeller body 1. The impeller cover 4 can prevent the impeller metal skeleton 3 from falling off, and the impeller metal skeleton 3 is completely wrapped in the ceramic interior, so that the corrosion resistance is further improved, and the gaps between the parts are filled with ceramic glue, so that the impeller metal skeleton 3 and the impeller cover 4 are installed on the ceramic impeller body 1 without gaps, effectively preventing the invasion of foreign substances and improving the corrosion resistance of the device.

[0017] Working principle: When in use, the impeller metal skeleton 3 is preferably screwed into the card hole 2 clockwise to the inside of the ceramic impeller body 1. This connection can solve the two problems of transmitting torque and axial force at the same time. The working effect is intuitive, and the installation operation is simpler, which improves the convenience of installation and use of the device. After the impeller metal skeleton 3 is screwed into the ceramic impeller body 1, the impeller cover 4 is installed into the ceramic impeller body 1. The impeller cover 4 can prevent the impeller metal skeleton 3 from falling off, and completely wrap the impeller metal skeleton 3 inside the ceramic, so that the corrosion resistance is further improved, and the gaps between the parts are filled with ceramic glue, so that the impeller metal skeleton 3 and the impeller cover 4 are installed on the ceramic impeller body 1 without gaps, effectively preventing the invasion of foreign substances and improving the corrosion resistance of the device. In this way, the use process of the device is completed. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0018] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ceramic impeller hub structure for a centrifugal slurry pump, comprising a ceramic impeller body (1), characterized in that: A clamping hole (2) is provided at one end of the ceramic impeller body (1), an impeller metal frame (3) is installed at one end of the clamping hole (2), an impeller cover (4) is installed at the outer end of the impeller metal frame (3), the impeller metal frame (3) is clamped and connected to the ceramic impeller body (1) through the clamping hole (2), and the inner end diameter of the clamping hole (2) is larger than the outer end diameter of the impeller metal frame (3), the impeller cover (4) is clamped and connected to the ceramic impeller body (1), and the inner end surface of the impeller cover (4) is tightly fitted with the outer end surface of the impeller metal frame (3).

2. The ceramic impeller hub structure of a centrifugal slurry pump according to claim 1, characterized in that: The middle end of the impeller metal frame (3) is provided with a threaded hole, and one end of the impeller metal frame (3) is provided in a "four-leaf clover" shape.

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