CN212479616U

CN212479616U - Shielding pump impeller anticreep device

Info

Publication number: CN212479616U
Application number: CN202020896826.1U
Authority: CN
Inventors: 徐菘; 徐正富
Original assignee: Anhui Tianfu Pump Valve Co ltd
Current assignee: Anhui Tianfu Pump Valve Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-02-05
Anticipated expiration: 2030-05-22

Abstract

The utility model belongs to the canned motor pump field specifically discloses a canned motor pump impeller anticreep device, including the canned motor pump body, its one end sets up the pump head, sets up the impeller cavity in the pump head, and the impeller body has the blade that circumference set up, is provided with the guide support post on each blade terminal surface and the hunch face respectively, and the ring shape guide way that supplies each guide support post embedding is seted up in impeller cavity inner wall correspondence, and each blade hunch face installs the strengthening rib. The utility model discloses set up a plurality of guide support posts on the impeller blade and disperse the atress of blade, when guaranteeing that the blade is stable rotatory, balanced impeller and the concentrated atress of the junction of pivot, many spacing supports, effectively avoided the dropping of impeller; meanwhile, the strengthening ribs are arranged on the arched surfaces of the blades, so that the strength of the blades is effectively enhanced; each guide support column is in rolling contact with the inner wall of the corresponding guide groove through a ball, so that friction is reduced, and stable rotation of the impeller is guaranteed.

Description

Shielding pump impeller anticreep device

Technical Field

The utility model relates to a canned motor pump field specifically is a canned motor pump impeller anticreep device.

Background

The conventional centrifugal pump is driven by connecting an impeller shaft of the pump with an electric shaft through a coupling so that the impeller and the motor rotate together to work, while the canned pump is a sealless pump, and the pump and a driving motor are both sealed in a pressure vessel filled with a pumped medium, the pressure vessel is only provided with static seals, and a rotating magnetic field is provided by an electric wire set and drives a rotor. The structure eliminates a rotating shaft sealing device of the traditional centrifugal pump, so that the leakage can be completely avoided.

The canned motor pump connects the pump and the motor together, the rotor of the motor and the impeller of the pump are fixed on the same shaft, and because the pump body is internally sealed, the stress pivot of the impeller blade on the rotating shaft is concentrated at the central connection part of the impeller, and the impeller is easy to fall off from the rotating shaft end under the action of high-speed rotation and repeated impact force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shield pump impeller anticreep device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a shield pump impeller anti-disengaging device comprises a shield pump body, wherein one end of the shield pump body is provided with a pump head, a feed inlet is formed in the pump head, an impeller cavity communicated with the feed inlet is formed in the pump head, an impeller body is installed in the impeller cavity, and a rotating shaft connected with the center of the impeller body is formed in the shield pump body; the impeller body has the blade that circumference set up, and it is the arc structure, and the concave surface is towards feed inlet place direction, and the outer terminal surface of each blade is planar structure, and is provided with guide support post on each blade terminal surface and the hunch face respectively, and the impeller intracavity wall corresponds and sets up the ring shape guide way that supplies each guide support post embedding, and the strengthening rib is installed to each blade hunch face.

Preferably, the outer end face of each blade is provided with a guide support column, and the guide support columns of the blades share one guide groove.

Preferably, two guiding support columns are correspondingly mounted on each blade arching surface, and the guiding support columns on the same circumferential line of each blade share one guiding groove.

Preferably, the reinforcing rib of each blade is connected with two corresponding guide support columns on the same blade, and the reinforcing rib is tangent to the arched surface of the blade.

Preferably, at least one ball is respectively installed on both sides of the end of the guide support column and is in rolling connection with the corresponding guide groove through the ball.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up a plurality of guide support posts on the impeller blade and disperse the atress of blade, when guaranteeing that the blade is stable rotatory, balanced impeller and the concentrated atress of the junction of pivot, many spacing supports, effectively avoided the dropping of impeller; meanwhile, the strengthening ribs are arranged on the arched surfaces of the blades, so that the strength of the blades is effectively enhanced; each guide support column is in rolling contact with the inner wall of the corresponding guide groove through a ball, so that friction is reduced, and stable rotation of the impeller is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a canned motor pump body; 2. a pump head; 3. a feed inlet; 4. an impeller cavity; 5. an impeller body; 6. a rotating shaft; 7. a blade; 8. a guiding support column; 9. a guide groove; 10. reinforcing ribs; 11. and a ball.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a shield pump impeller anti-disengaging device comprises a shield pump body 1, wherein one end of the shield pump body is provided with a pump head 2, a feed inlet 3 is formed in the pump head 2, an impeller cavity 4 communicated with the feed inlet 3 is formed in the pump head 2, an impeller body 5 is installed in the impeller cavity 4, and a rotating shaft 6 connected with the center of the impeller body 5 is formed in the shield pump body 1; impeller body 5 has blade 7 that circumference set up, and it is the arc structure, and the concave surface is towards the direction at feed inlet 3 place, and the outer terminal surface of each blade 7 is planar structure, and is provided with guide support post 8 on 7 terminal surfaces of each blade and the hunch face respectively, and the ring shape guide way 9 that supplies each guide support post 8 embedding is seted up to impeller cavity 4 inner wall correspondence, and strengthening rib 10 is installed to each blade 7 hunch face.

Further, a guide support column 8 is arranged on the outer end face of each blade 7, and the guide support columns 8 of each blade 7 share one guide groove 9.

Furthermore, two guiding support columns 8 are correspondingly arranged on the arched surface of each blade 7, and the guiding support columns 8 on the same circumferential line of each blade 7 share one guiding groove 9.

Further, the reinforcing rib 10 of each blade 7 is connected with two corresponding guide support columns 8 on the same blade 7, and the reinforcing rib 10 is tangent to the arched surface of the blade 7.

Furthermore, at least one ball 11 is respectively installed on both sides of the end of the guide support column 8, and is in rolling connection with the corresponding guide groove 9 through the ball 11.

The working principle is as follows: a plurality of guide support columns 8 are arranged on each blade 7 of the impeller body 5 to disperse stress of the blade 7, and when the impeller body rotates, each guide support column 8 is embedded into the corresponding guide groove 9 and moves circularly along the circular ring shape of the guide groove, so that the blades 7 are ensured to stably rotate, concentrated stress at the joint of the impeller body 5 and the rotating shaft 6 is balanced, and the impeller body 5 is effectively prevented from falling off due to the plurality of limit supports of the guide support columns 8; meanwhile, the strengthening ribs 10 are arranged on the arched surface of the blade 7, so that the strength of the blade 7 is effectively enhanced; each guide support column 8 is in rolling contact with the inner wall of the corresponding guide groove 9 through a ball 11, so that friction is reduced, and stable rotation of the impeller body 5 is guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A shielding pump impeller anti-drop device comprises a shielding pump body (1), wherein one end of the shielding pump body is provided with a pump head (2), a feed inlet (3) is formed in the pump head (2), and the shielding pump impeller anti-drop device is characterized in that an impeller cavity (4) communicated with the feed inlet (3) is formed in the pump head (2), an impeller body (5) is installed in the impeller cavity (4), and a rotating shaft (6) connected with the center of the impeller body (5) is formed in the shielding pump body (1); impeller body (5) have blade (7) that circumference set up, and it is the arc structure, and the concave surface is towards feed inlet (3) place direction, and the outer terminal surface of each blade (7) is planar structure, and is provided with guide support post (8) on each blade (7) terminal surface and the hunch face respectively, and annular guide way (9) that supply each guide support post (8) embedding are seted up to impeller cavity (4) inner wall correspondence, and strengthening rib (10) are installed to each blade (7) hunch face.

2. The impeller slip prevention device for the canned pump according to claim 1, wherein: the outer end face of each blade (7) is provided with a guide supporting column (8), and the guide supporting columns (8) of the blades (7) share one guide groove (9).

3. The impeller slip prevention device for the canned pump according to claim 1, wherein: two guide support columns (8) are correspondingly arranged on the arched surface of each blade (7), and the guide support columns (8) on the same circumferential line of each blade (7) share one guide groove (9).

4. The impeller slip prevention device for the canned pump according to claim 1, wherein: the reinforcing ribs (10) of each blade (7) are connected with two corresponding guide supporting columns (8) on the same blade (7), and the reinforcing ribs (10) are tangent to the arched surfaces of the blades (7).

5. The impeller slip prevention device for the canned pump according to claim 1, wherein: at least one ball (11) is installed respectively to guide support post (8) tip both sides to through ball (11) and corresponding guide way (9) roll connection.