Anti-abrasion structure of water pump fluid director

By setting wear-resistant and buffer-resistant protective plates on both sides of the pump guide vanes, the problem of the sand baffle design being difficult to prevent wear is solved, achieving efficient protection of the vanes and convenient maintenance.

CN223563119UActive Publication Date: 2025-11-18NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Patent Information

Application Number
CN202520014890.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-05
Publication Date
2025-11-18
Estimated Expiration
2035-01-05

AI Technical Summary

Technical Problem

The existing sand baffle design of water pump guides is not effective in preventing blade wear and is inconvenient to replace.

Method used

A first protective plate and a second protective plate are set on both sides of the blade, and a wear-resistant layer and a buffer layer are set inside them. The blade is fixed by a threaded connection of a threaded sleeve and a threaded rod. The protective plates are made of high manganese steel and natural rubber, which provide wear resistance and buffering respectively.

Benefits of technology

It improves the wear resistance of the blades, reduces friction, and facilitates the disassembly and maintenance of the protective plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a water pump fluid director anti-abrasion structure, and particularly relates to the technical field of water pump fluid directors, the water pump fluid director anti-abrasion structure comprises a fluid director disc, four blades are annularly connected above the fluid director disc, positioning mechanisms are arranged in the blades, and two sides of each blade are respectively connected with a first protection plate and a second protection plate through the positioning mechanisms; the first protection plate internally comprises a wear-resistant layer, a base plate and a buffer layer, the first protection plate and the second protection plate are arranged on the two sides of the blade, the effect of protecting the blade is facilitated, the wear-resistant layer and the buffer layer are arranged, the wear-resistant layer is made of a high manganese steel material, the high manganese steel has high hardness, wear resistance and good impact toughness, and the service life of the blade is prolonged. And the buffer layer is made of a natural rubber material, and the natural rubber material has the advantages of high elasticity and high tear resistance, so that the friction of the protective plate to the blade is reduced, and the overall wear-resistant effect of the blade is greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to water pump flow guide device technical field, concretely relates to a water pump flow guide device anti -wear structure. BACKGROUND

[0002] Water pump flow guide device is an important component in water pump, its main function is to guide the fluid into the water pump to the export direction, thereby improving the efficiency and flow of water pump, flow guide device changes the flow direction and speed of the fluid into the water pump, makes it form stable flow state in the water pump, thereby promotes the working efficiency of water pump, water pump flow guide device and impeller are in close contact, if flow guide device wears seriously, can cause the gap between impeller and flow guide device increases, in order to avoid this situation, need to use anti -wear structure.

[0003] Chinese patent discloses a kind of water pump flow guide device anti -wear structure (announcement number CN220539951U), the patent technology is by realizing the separable structure of sand baffle ring and blade, sand baffle ring and blade between can be individually detached, when replacing sand baffle ring, only sand baffle ring can be replaced individually, but since sand baffle ring is installed in the outer side of blade, mud and sand in water can still contact blade constantly, and the width of sand baffle ring is less than the width of blade, it is difficult to play better anti -wear effect. UTILITY MODEL CONTENT

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0005] A kind of water pump flow guide device anti -wear structure, comprising:

[0006] Flow guide disc, the upper side of the flow guide disc is connected with four blades in ring, a pair of second positioning holes are formed in the inside of the blade, a positioning mechanism is arranged in the inside of the second positioning hole, the two sides of the blade are connected with first protective plate and second protective plate respectively by positioning mechanism;

[0007] The inside of the first protective plate includes wear-resistant layer, substrate and buffer layer, the internal structure of the first protective plate is consistent with the internal structure of the second protective plate.

[0008] In a possible implementation manner, the positioning mechanism includes a threaded sleeve, the threaded sleeve penetrates the inside of the second positioning hole, one end of the threaded sleeve is connected with a first circular plate, a threaded rod is screw-connected in the inside of the threaded sleeve, one end of the threaded rod is connected with a second circular plate.

[0009] In a possible implementation, the first protective plate and the second protective plate are respectively provided with a pair of first positioning holes and a pair of third positioning holes in the interior, the third positioning holes are located corresponding to the second positioning holes, and one end of the threaded sleeve penetrates the interiors of the first positioning holes and the third positioning holes.

[0010] In a possible implementation, the second circular plate is provided with a cross-shaped groove on the outer side.

[0011] In a possible implementation, the first protective plate and the second protective plate are respectively provided with a pair of first positioning holes and a pair of third positioning holes in the interior, the third positioning holes are located corresponding to the second positioning holes, and one end of the threaded sleeve penetrates the interiors of the first positioning holes and the third positioning holes.

[0012] In a possible implementation, the wear-resistant layer is made of high manganese steel, and the buffer layer is made of natural rubber.

[0013] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0014] 1. By setting the first protective plate and the second protective plate on both sides of the blade, the two sides of the blade are wrapped, which is beneficial to the effect of protecting the blade, and the wear-resistant layer and the buffer layer are set, the wear-resistant layer is made of high manganese steel, the high manganese steel has high hardness, wear resistance and good impact toughness, which is beneficial to reduce the friction caused by external pressure on the protective plate, the buffer layer is made of natural rubber, the natural rubber has the advantages of large elasticity and strong tear resistance, which is beneficial to reduce the friction caused by the protective plate on the blade, and greatly improves the overall wear resistance of the blade.

[0015] 2. By setting the first circular plate, the threaded sleeve, the second circular plate and the threaded rod, the first protective plate and the second protective plate are fixed on both sides of the blade through the threaded connection between the threaded sleeve and the threaded rod, which is convenient for disassembly and replacement of the protective plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0017] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Fig. 2 It is an exploded view of the first protective plate, the second protective plate and the blade of the utility model;

[0019] Fig. 3 It is a schematic diagram of the internal structure of the first protective plate of the utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Guide plate; 2. Blade; 3. First protective plate; 301. Wear-resistant layer; 302. Base plate; 303. Buffer layer; 4. Second protective plate; 5. First circular plate; 6. Threaded sleeve; 7. First positioning hole; 8. Second positioning hole; 9. Rounded corner; 10. Third positioning hole; 11. Cross groove; 12. Second circular plate; 13. Threaded rod. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This application provides a wear-resistant structure for a water pump guide, thus solving the problems in the prior art.

[0024] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0025] like Figs. 1-3 As shown, a wear-resistant structure for a water pump guide includes:

[0026] The guide plate 1 has four blades 2 connected circumferentially above it. A pair of second positioning holes 8 are opened inside the blades 2. A positioning mechanism is set inside the second positioning holes 8. A first protective plate 3 and a second protective plate 4 are respectively connected to both sides of the blades 2 through the positioning mechanism. By setting the positioning mechanism, it is convenient to fix the first protective plate 3 and the second protective plate 4 to both sides of the blades 2, which is convenient for disassembly and assembly, and thus convenient for replacement and maintenance of the protective plates.

[0027] The interior of the first protective plate 3 includes a wear-resistant layer 301, a substrate 302, and a buffer layer 303. The internal structure of the first protective plate 3 is the same as that of the second protective plate 4.

[0028] In some examples, the positioning mechanism includes a threaded sleeve 6 that passes through the interior of the second positioning hole 8. One end of the threaded sleeve 6 is connected to a first circular plate 5. A threaded rod 13 is threadedly connected inside the threaded sleeve 6. One end of the threaded rod 13 is connected to a second circular plate 12. The threaded sleeve 6 is inserted into the interior of the first positioning hole 7, the second positioning hole 8, and the third positioning hole 10 in sequence, and the threaded rod 13 is inserted into the threaded sleeve 6 and rotated to tighten it, which facilitates the fixing of the first protective plate 3, the blade 2, and the second protective plate 4.

[0029] In some examples, the inner part of the first protective plate 3 and the second protective plate 4 is respectively provided with a pair of first positioning holes 7 and a pair of third positioning holes 10, the position of the third positioning hole 10 corresponds to the position of the second positioning hole 8, and one end of the threaded sleeve 6 penetrates the inner part of the first positioning hole 7 and the third positioning hole 10, so as to facilitate the threaded sleeve 6 to be inserted into the inner part of the first positioning hole 7 and the third positioning hole 10 in sequence.

[0030] In some examples, the outer side of the second circular plate 12 is provided with a cross groove 11, and the cross groove 11 facilitates people to rotate the second circular plate 12 by using a screwdriver to drive the threaded rod 13 to rotate.

[0031] In some examples, the two sides of the first protective plate 3 and the second protective plate 4 are provided with a fillet 9, and the fillet 9 facilitates the two sides of the first protective plate 3 and the second protective plate 4 to wrap the end part of the blade 2.

[0032] In some examples, the wear-resistant layer 301 is made of high manganese steel material, and the buffer layer 303 is made of natural rubber material, the high manganese steel has high hardness, wear resistance and good impact toughness, which is beneficial to reduce the friction caused by external pressure on the protective plate, the natural rubber has the advantages of large elasticity and strong tear resistance, which is beneficial to reduce the friction caused by the protective plate on the blade 2, and greatly improves the overall wear resistance of the blade 2.

[0033] The utility model discloses a first protective plate 3 and second protective plate 4 are set up on the both sides of blade 2, and the both sides of blade 2 are wrapped, which is beneficial to the effect of protecting blade 2, and wear-resistant layer 301 and buffer layer 303 are set up, wear-resistant layer 301 is made of high manganese steel material, and high manganese steel has high hardness, wear resistance and good impact toughness, which is beneficial to reduce the friction caused by external pressure on the protective plate, buffer layer 303 is made of natural rubber material, and natural rubber has the advantages of large elasticity and strong tear resistance, which is beneficial to reduce the friction caused by the protective plate on the blade 2, and greatly improves the overall wear resistance of the blade 2.

[0034] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled person in the art, under the condition of not deviating from the spirit and scope of the utility model, the described embodiment can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A wear structure for a water pump inducer, comprising: Include: The deflector disc (1) is connected with four blades (2) in the upper ring, a pair of second positioning holes (8) are arranged in the inside of the blade (2), a positioning mechanism is arranged in the inside of the second positioning hole (8), the two sides of the blade (2) are connected with the first protective plate (3) and the second protective plate (4) respectively through the positioning mechanism; The inside of the first protective plate (3) includes wear-resistant layer (301), base plate (302) and buffer layer (303), the internal structure of the first protective plate (3) is consistent with the internal structure of the second protective plate (4).

2. A wear protection structure for a water pump inducer according to claim 1, characterized in that: The positioning mechanism includes a threaded sleeve (6), the threaded sleeve (6) penetrates the inside of the second positioning hole (8), one end of the threaded sleeve (6) is connected with the first circular plate (5), the inside of the threaded sleeve (6) is connected with the threaded rod (13) in a threaded manner, one end of the threaded rod (13) is connected with the second circular plate (12).

3. A wear protection structure for a water pump inducer according to claim 2, characterized in that: The inside of the first protective plate (3) and the second protective plate (4) is respectively provided with a pair of first positioning holes (7) and a pair of third positioning holes (10), the position of the third positioning hole (10) corresponds to the position of the second positioning hole (8), and one end of the threaded sleeve (6) penetrates the inside of the first positioning hole (7) and the third positioning hole (10).

4. A wear protection structure for a water pump inducer according to claim 2, characterized in that: The outside of the second circular plate (12) is provided with a cross groove (11).

5. A wear protection structure for a water pump inducer according to claim 1, characterized in that: The two sides of the first protective plate (3) and the second protective plate (4) are provided with a fillet (9).

6. A wear protection structure for a water pump inducer according to claim 1, characterized in that: The wear-resistant layer (301) is made of high manganese steel material, and the buffer layer (303) is made of natural rubber material.

Citation Information

Patent Citations

  • Anti-abrasion structure of water pump fluid director

    CN220539951U