WO2020228123A1

WO2020228123A1 - Impeller used for centrifugal water pump

Info

Publication number: WO2020228123A1
Application number: PCT/CN2019/095583
Authority: WO
Inventors: 张腾龙
Original assignee: 苏州赫尔拜斯泵业有限公司
Priority date: 2019-05-15
Filing date: 2019-07-11
Publication date: 2020-11-19
Also published as: DE202019105789U1; CN210050097U

Abstract

Provided is an impeller used for a centrifugal water pump, comprising an wheel disk (1); a plurality of blades (3) are evenly distributed on one side of the wheel disk (1); the blades (3) are arcuate blades; a plurality of mounting grooves (11) are evenly provided on one side of the wheel disk (1); the mounting grooves (11) are provided with a first insertion slot (12) near the center of the wheel disk (1), and the mounting grooves (11) are provided with a second insertion slot (13) away from the center of the wheel disk (1); a first convex step (33) is formed on the central end (31) of the blade (3), and a second convex step (34) is formed on the edge end (32) of the blade (3); each of the bottom wall of the first insertion slot (12) and the bottom wall of the second insertion slot (13) is provided with a connection hole (14); each of the first convex step (33) and the second convex step (34) is formed having a threaded hole (35); a locking member (4) passes through the connecting hole (14) and the threaded hole (35), in sequence, to achieve a fixed connection between the blades (3) and the wheel disk (1).

Description

Impeller for centrifugal water pump

Technical field

The utility model belongs to the technical field of water pumps, and particularly relates to an impeller for a centrifugal water pump.

Background technique

The impeller is the key component of the water pump for conveying water. The impeller includes blades, and the rotation of the blades generates centrifugal force. The impeller of the prior art centrifugal pump provides relatively small water flow force, so that the meaningless loss of mechanical energy generated by the impeller during rotation is relatively large, which causes a lot of energy waste and reduces the working quality of the overall water pump.

In addition, during the high-speed operation of the impeller, if the blades and the disc are not firmly assembled, it will seriously affect the working quality of the impeller.

Utility model content

The main technical problem solved by the utility model is to provide an impeller for a centrifugal water pump, which can increase the water output of the centrifugal water pump, and has a high degree of coordination between the blades and the disc, and is easy to remove and replace.

In order to solve the above technical problems, a technical solution adopted by the present utility model is: an impeller for a centrifugal water pump, including a wheel disk, the center of the wheel disk is provided with a shaft hole, and one side of the wheel disk is evenly distributed with several blades , A water flow channel is formed between adjacent blades;

The blade is an arc-shaped blade, the end of the blade close to the center of the wheel disc is the center end, the end of the blade away from the center of the wheel disc is the edge end, and the width of the center end is smaller than that of the edge end. width;

A number of installation grooves for fixing blades are evenly opened on one side of the wheel, the installation groove is provided with a first slot near the center of the wheel, and the installation groove is away from the center of the wheel. A second slot, the central end of the blade is formed with a first convex step matching the first slot, and the edge end of the blade is formed with a second convex step matching the second slot, so The bottom wall of the first slot and the bottom wall of the second slot are respectively provided with connecting holes, the first convex step and the second convex step are respectively formed with threaded holes, and the locking member sequentially passes through the The connecting hole and the threaded hole are used to realize the fixed connection between the blade and the disc;

The side wall of the wheel is provided with a sound-absorbing layer, and the thickness of the sound-absorbing layer is 2-3 mm;

The side wall of the blade is coated with an anti-rust layer, and the thickness of the anti-rust layer is 4-5 mm.

The further technical solutions adopted by the utility model to solve its technical problems are:

Furthermore, the width of the center end is 1/2 of the width of the edge end.

Furthermore, the number of the blades is six.

Furthermore, the wheel disc and the blades are made of aluminum.

Furthermore, the sound absorption layer is a porous ceramic layer.

Furthermore, the anti-rust layer is an epoxy resin anti-rust layer.

Furthermore, the locking member is a locking screw.

The beneficial effects of the utility model have at least the following points:

1. The blade of the utility model is an arc blade, and the width of the center end is smaller than the width of the edge end. This structure design is beneficial to increase the gravity inertia of the blade end and improve the pumping efficiency of the water pump;

2. The wheel disc and the blade of the present invention are detachably connected, and when any blade is damaged, it can be replaced in time to avoid replacing the entire impeller; and the blade and the wheel disc pass through the first slot and the first convex step and the second slot and The second convex steps are respectively matched and buckled, and then the connecting hole and the threaded hole are successively passed through the locking member to realize the fixed connection of the blade and the disc. This structural design is beneficial to improve the assembly degree of the blade and the disc, and improve the working quality of the impeller , Improve the water output rate of the pump.

Description of the drawings

Figure 1 is one of the overall structure diagrams of the utility model;

Figure 2 is the second schematic diagram of the overall structure of the utility model;

Figure 3 is a schematic diagram of the structure of the roulette of the present invention;

Figure 4 is one of the structural schematic diagrams of the blade of the present invention;

Figure 5 is the second structural diagram of the blade of the utility model;

The parts in the drawings are marked as follows:

Roulette 1, mounting groove 11, first slot 12, second slot 13, connecting hole 14, shaft hole 2, blade 3, center end 31, edge end 32, first convex step 33, second convex step 34 , Threaded hole 35 and locking member 4.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the utility model. .

Example: An impeller for a centrifugal water pump, as shown in Figures 1 to 5, includes a wheel disc 1. A shaft hole 2 is opened in the center of the disc 1 and a number of blades are evenly distributed on one side of the disc 1 3. A water flow channel is formed between adjacent blades 3;

The blade 3 is an arc-shaped blade, the end of the blade 3 close to the center of the wheel disc 1 is the center end 31, and the end of the blade 3 away from the center of the wheel disc 1 is the edge end 32, and the center The width of the end 31 is smaller than the width of the edge end 32;

A number of installation grooves (11) for fixing blades are uniformly opened on one side of the wheel 1, and a first slot 12 is provided in the center of the installation groove close to the wheel 1, and the installation groove is far away from the The center of the wheel 1 is provided with a second slot 13, the central end 31 of the blade 3 is formed with a first convex step 33 (33) matching the first slot 12, and the edge end 32 of the blade 3 A second convex step 34 that matches the second slot 13 is formed. The bottom wall of the first slot 12 and the bottom wall of the second slot 13 are respectively provided with connecting holes 14, and the first The convex step 33 and the second convex step 34 are respectively formed with a threaded hole 35, and the locking member 4 passes through the connecting hole 14 and the threaded hole 35 in order to achieve a fixed connection between the blade and the disc;

The side wall of the wheel 1 is provided with a sound-absorbing layer, and the thickness of the sound-absorbing layer is 2-3 mm;

The side wall of the blade 3 is coated with an anti-rust layer, and the thickness of the anti-rust layer is 4-5 mm.

The width of the central end 31 is 1/2 of the width of the edge end 32.

The number of blades 3 is six.

The wheel 1 and the blade 3 are made of aluminum.

The sound absorption layer is a porous ceramic layer.

The anti-rust layer is an epoxy resin anti-rust layer.

The locking member 4 is a locking screw.

The working principle of the utility model is as follows:

The above are only the embodiments of the present utility model, and do not therefore limit the scope of the present utility model. Any equivalent structural transformation made using the content of the utility model description and drawings, or directly or indirectly applied to other related technical fields , The same reason is included in the scope of patent protection of this utility model.

Claims

An impeller for a centrifugal water pump, which is characterized in that it comprises a wheel disc (1), a shaft hole (2) is opened in the center of the wheel disc, and a plurality of blades (3) are evenly distributed on one side of the disc, adjacent to each other. A water flow channel is formed between the blades;

The blade is an arc-shaped blade, the end of the blade close to the center of the disc is a central end (31), and the end of the blade away from the center of the disc is an edge end (32). The width is smaller than the width of the edge end;

A number of installation grooves (11) for fixing blades are uniformly opened on one side of the wheel, and a first slot (12) is provided in the center of the installation groove close to the wheel, and the installation groove is far away from the The center of the wheel is provided with a second slot (13), the central end of the blade is formed with a first convex step (33) matching the first slot, and the edge end of the blade is formed with the The second convex step (34) that matches the second slot, the bottom wall of the first slot and the bottom wall of the second slot are respectively provided with connecting holes (14), the first convex step and the The second convex steps are respectively formed with threaded holes (35), and the locking member (4) sequentially passes through the connecting hole and the threaded hole to realize the fixed connection between the blade and the wheel disc;

The side wall of the wheel is provided with a sound-absorbing layer, and the thickness of the sound-absorbing layer is 2-3 mm;

The side wall of the blade is coated with an anti-rust layer, and the thickness of the anti-rust layer is 4-5 mm.
The centrifugal water pump impeller according to claim 1, wherein the width of the center end is 1/2 of the width of the edge end.
The centrifugal water pump impeller according to claim 1, wherein the number of the blades is six.
The centrifugal water pump impeller according to claim 1, wherein the disc and the blades are made of aluminum material.
The centrifugal water pump impeller according to claim 1, wherein the sound absorption layer is a porous ceramic layer.
The centrifugal water pump impeller according to claim 1, wherein the anti-rust layer is an epoxy resin anti-rust layer.
The impeller for a centrifugal water pump according to claim 1, wherein the locking member is a locking screw.