CN215292998U

CN215292998U - Closed impeller for high-strength pump

Info

Publication number: CN215292998U
Application number: CN202120263561.6U
Authority: CN
Inventors: 郭家宏; 朱金红; 高永梅
Original assignee: Yangzhou Kaili Pump Co ltd
Current assignee: Yangzhou Kaili Pump Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-12-24
Anticipated expiration: 2031-01-30

Abstract

The utility model discloses a high strength pump used closed impeller, which belongs to the technical field of impellers, and comprises a bottom fixed wheel, blades are welded on the top end of the bottom fixed wheel in an equidistance way, the outer surface of the bottom fixed wheel is provided with a top fixed wheel corresponding to the position of the edge part of the top end of the blades, connecting holes are arranged on the middle parts of the top ends of the bottom fixed wheel and the top fixed wheel, the edge part of the back of the blades is connected with a supporting sheet, the middle part of one end of the supporting sheet is provided with a positioning sheet in a casting way, a spacing sheet is welded between one end of the supporting sheet and one end of the positioning sheet, the blades can be conveniently supported through the blades, the supporting sheet, the positioning sheet, the spacing sheet, the connecting sheet and the spacing strip, the back supporting force of the blades is increased, the installation of the blades is more stable, the bending phenomenon of the blades is prevented, the blades are more stable, and the stability of the blades is increased at the same time, further increasing the strength of the blade and preventing the blade from breaking.

Description

Closed impeller for high-strength pump

Technical Field

The utility model relates to an impeller technical field specifically is a closed impeller for high strength pump.

Background

The impeller not only refers to a wheel disc provided with movable blades, and is a component of an impulse steam turbine rotor, but also refers to a general name of the wheel disc and the rotating blades arranged on the wheel disc, the impeller can be classified according to the shape and the opening and closing conditions, the closed impeller consists of the blades, a front cover plate and a rear cover plate, the efficiency of the closed impeller is higher, the manufacturing difficulty is higher, the closed impeller is applied to a centrifugal pump most, and the closed impeller is suitable for conveying clean water, and cleaning liquid which is low in solution viscosity and does not contain particles.

However, the back of the existing blade is not provided with a supporting device, so that the blade is easy to break due to the impact of water in the actual use process, the blade is damaged, and the damaged impeller cannot be used normally.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength pump is with closed impeller to propose in solving above-mentioned background art because the blade back does not have strutting arrangement, thereby lead to the blade in the in-service use process, easily because the impact of water produces cracked phenomenon, thereby lead to the blade to produce the phenomenon of damage, and then lead to the problem of the unable normal use of impeller after the damage.

In order to solve the technical problem, the utility model provides a following technical scheme: a high-strength closed impeller for a pump comprises a bottom fixed wheel and blades welded to the top end of the bottom fixed wheel at equal intervals, wherein the top fixed wheel is installed on the outer surface of the bottom fixed wheel, corresponding to the position of the edge of the top end of each blade, connecting holes are formed in the middle of the top ends of the bottom fixed wheel and the top fixed wheel, the edge of the back of each blade is connected with a supporting sheet, a positioning sheet is cast in the middle of one end of each supporting sheet, a limiting sheet is welded between one end of each supporting sheet and one end of each positioning sheet, a connecting sheet is cast in the edge of the back of each limiting sheet, and a limiting strip is cast in the middle of the top end of each connecting sheet;

the bottom tight pulley bottom limit portion founding has the ring, ring top middle part equidistance founding has the solid fixed cylinder, gu fixed cylinder inner wall middle part has the threaded rod through threaded connection, threaded rod top interference fit is connected with the bearing, bearing surface top interference fit is connected with the L type ring, gu fixed cylinder surface middle part has the gim peg through threaded connection.

Preferably, the threaded rod and the fixed cylinder are fixed through the fixed bolt in an extruding mode, the outer diameter of the threaded rod is equal to the inner diameter of the fixed cylinder, the threaded rod and the fixed cylinder can be fixed conveniently, and the threaded rod is prevented from rotating.

Preferably, be connected through the bearing between threaded rod and the L type ring, the internal diameter of bearing equals the external diameter of threaded rod, can be convenient for the rotation of threaded rod, reduced the rotation degree of difficulty of threaded rod.

Preferably, laminating each other between L type ring inner wall top and the top tight pulley top limit portion, can be convenient for extrude the top tight pulley to make the top tight pulley more stable.

Preferably, be connected through the blade between bottom tight pulley and the top tight pulley, the external diameter of bottom tight pulley and top tight pulley equals, and the phenomenon that the position of bottom tight pulley and top tight pulley removed is prevented to the spacing of bottom tight pulley and top tight pulley of being convenient for.

Preferably, the cross section of the limiting piece is T-shaped, one end of the limiting piece and the back of the blade are attached to each other, so that the blade can be conveniently supported, and the supporting force of the blade is increased.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. through blade, backing sheet, spacer, spacing piece, connection piece and spacing, can be convenient for support the blade, increased the back holding power of blade, and then make the more stable of blade installation, prevent that the blade from taking place crooked phenomenon, and then make the blade more stable, increased the stability of blade simultaneously, further increased the intensity of blade, prevent that the blade from taking place cracked phenomenon.

2. Through bottom tight pulley, top tight pulley, connecting hole, ring, solid fixed cylinder, threaded rod, bearing, L type ring and gim peg, can be convenient for fix the top tight pulley to make the more stable of top tight pulley installation, prevent that the top tight pulley from taking place the phenomenon of rocking.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a closed impeller for a high-strength pump according to the present invention;

fig. 2 is a schematic view of an installation structure of a closed impeller threaded rod for a high-strength pump according to the present invention;

fig. 3 is a schematic view of an installation structure of a closed impeller limiting piece for a high-strength pump according to the present invention;

in the figure: 1. a bottom fixed wheel; 2. a top fixed wheel; 3. connecting holes; 4. a circular ring; 5. a fixed cylinder; 6. a threaded rod; 7. a bearing; 8. an L-shaped ring; 9. a fixing bolt; 10. a blade; 11. a support sheet; 12. positioning plates; 13. a limiting sheet; 14. connecting sheets; 15. and (5) a limiting strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-strength closed impeller for a pump comprises a bottom fixed wheel 1, blades 10 are welded on the top end of the bottom fixed wheel 1 at equal intervals, the bottom fixed wheel 1 is connected with a top fixed wheel 2 through the blades 10, the outer diameters of the bottom fixed wheel 1 and the top fixed wheel 2 are equal, the bottom fixed wheel 1 and the top fixed wheel 2 can be conveniently limited, the positions of the bottom fixed wheel 1 and the top fixed wheel 2 are prevented from moving, the top fixed wheel 2 is installed on the outer surface of the bottom fixed wheel 1 corresponding to the position of the top end of the blade 10, connecting holes 3 are formed in the middle parts of the top ends of the bottom fixed wheel 1 and the top fixed wheel 2, a supporting sheet 11 is connected to the back side of the blade 10, a positioning sheet 12 is cast in the middle part of one end of the supporting sheet 11, a limiting sheet 13 is welded between one end of the supporting sheet 11 and one end of the positioning sheet 12, the cross section of the limiting sheet 13 is T-shaped, one end of the limiting sheet 13 is mutually attached to the back of the blade 10, the blade 10 can be conveniently supported, the supporting force of the blade 10 is increased, the connecting piece 14 is cast at the edge part of the back surface of the limiting piece 13, and the limiting strip 15 is cast in the middle of the top end of the connecting piece 14;

the bottom end edge part of the bottom fixed wheel 1 is melt-cast with a circular ring 4, the middle part of the top end of the circular ring 4 is melt-cast with a fixed cylinder 5 at equal intervals, the middle part of the inner wall of the fixed cylinder 5 is connected with a threaded rod 6 through threads, the threaded rod 6 and the fixed cylinder 5 are extruded and fixed through a fixed bolt 9, the outer diameter of the threaded rod 6 is equal to the inner diameter of the fixed cylinder 5, the threaded rod 6 and the fixed cylinder 5 can be conveniently fixed, the threaded rod 6 is prevented from rotating, the top end of the threaded rod 6 is connected with a bearing 7 in an interference fit manner, the top surface of the bearing 7 is connected with an L-shaped ring 8 in an interference fit manner, the top end of the inner wall of the L-shaped ring 8 and the top end edge part of the top fixed wheel 2 are mutually attached, the top fixed wheel 2 can be conveniently extruded, the top fixed wheel 2 is more stable, the threaded rod 6 is connected with the L-shaped ring 8 through the bearing 7, the inner diameter of the bearing 7 is equal to the outer diameter of the threaded rod 6, and can facilitate the rotation of the threaded rod 6, the rotation difficulty of the threaded rod 6 is reduced, and the middle part of the outer surface of the fixed cylinder 5 is connected with a fixed bolt 9 through threads.

The utility model discloses a theory of operation: high strength pump is with closed impeller at the in-service use in-process, the user installs blade 10, then utilize backing sheet 11 to support blade 10, and utilize spacer 12 and spacing piece 13 to support blade 10 simultaneously, and can utilize connection piece 14 to support blade 10 this moment, can be convenient for support blade 10, the back holding power of blade 10 has been increased, and then make the more stable of blade 10 installation, prevent that blade 10 from taking place crooked phenomenon, and then make blade 10 more stable, the stability of blade 10 has been increased simultaneously, the intensity of blade 10 has further been increased, prevent that blade 10 from taking place cracked phenomenon.

Then the user rotates threaded rod 6, threaded rod 6 rotates along bearing 7 is inside, and rotate and remove along the inside of solid fixed cylinder 5, and threaded rod 6 drives L type ring 8 when removing and removes, extrude top tight pulley 2 when L type ring 8 removes, and gim peg 9 extrudes threaded rod 6, prevent that threaded rod 6 from taking place the phenomenon of rotation, can be convenient for fix top tight pulley 2, thereby make the installation of top tight pulley 2 more stable, prevent that top tight pulley 2 from taking place the phenomenon of rocking.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a closed impeller for high strength pump, includes bottom tight pulley (1), its characterized in that: the blade fixing device is characterized in that blades (10) are welded on the top end of a bottom fixing wheel (1) at equal intervals, a top fixing wheel (2) is installed on the outer surface of the bottom fixing wheel (1) corresponding to the position of the top edge of each blade (10), connecting holes (3) are formed in the middle of the top ends of the bottom fixing wheel (1) and the top fixing wheel (2), a supporting sheet (11) is connected to the back edge of each blade (10), a positioning sheet (12) is cast in the middle of one end of the supporting sheet (11), a limiting sheet (13) is welded between one end of the supporting sheet (11) and one end of the positioning sheet (12), a connecting sheet (14) is cast on the back edge of the limiting sheet (13), and a limiting strip (15) is cast in the middle of the top end of the connecting sheet (14);

bottom tight pulley (1) bottom limit portion melt-casting has ring (4), ring (4) top middle part equidistance melt-casting has solid fixed cylinder (5), there is threaded rod (6) solid fixed cylinder (5) inner wall middle part through threaded connection, threaded rod (6) top interference fit is connected with bearing (7), bearing (7) surface top interference fit is connected with L type ring (8), gu fixed cylinder (5) surface middle part has gim peg (9) through threaded connection.

2. The closed impeller for the high-strength pump as claimed in claim 1, wherein: the threaded rod (6) and the fixed cylinder (5) are fixed through a fixed bolt (9) in an extruding mode, and the outer diameter of the threaded rod (6) is equal to the inner diameter of the fixed cylinder (5).

3. The closed impeller for the high-strength pump as claimed in claim 1, wherein: the threaded rod (6) is connected with the L-shaped ring (8) through a bearing (7), and the inner diameter of the bearing (7) is equal to the outer diameter of the threaded rod (6).

4. The closed impeller for the high-strength pump as claimed in claim 1, wherein: the top end of the inner wall of the L-shaped ring (8) and the edge part of the top end of the top fixing wheel (2) are mutually attached.

5. The closed impeller for the high-strength pump as claimed in claim 1, wherein: the bottom fixed wheel (1) is connected with the top fixed wheel (2) through the blades (10), and the outer diameters of the bottom fixed wheel (1) and the top fixed wheel (2) are equal.

6. The closed impeller for the high-strength pump as claimed in claim 1, wherein: the cross section of the limiting sheet (13) is T-shaped, and one end of the limiting sheet (13) is attached to the back of the blade (10) mutually.