CN213511338U

CN213511338U - Impeller pump with improved structure

Info

Publication number: CN213511338U
Application number: CN202022615085.8U
Authority: CN
Inventors: 黄田中; 黄朝; 罗成明
Original assignee: FOSHAN HUAYONG TECHNOLOGY CO LTD
Current assignee: FOSHAN HUAYONG TECHNOLOGY CO LTD
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-06-22
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses an impeller pump with improved structure, which comprises a pump body and a driving device; the pump body comprises a pump shell and a cover plate; the pump shell, the cover plate and the driving device are sequentially installed in a matching way, and a closed liquid pumping cavity is formed between the inner cavity of the pump shell and the cover plate; the pump shell is respectively provided with a liquid inlet and a liquid outlet which are communicated with the liquid pumping cavity; the pump is characterized by also comprising a pump shaft, wherein an impeller is arranged in the liquid pumping cavity, one end of the pump shaft is connected with the impeller, and the other end of the pump shaft penetrates through the cover plate and is connected with a driving device; the sealing element comprises a sealing body and a guide inclined platform formed by extending the sealing body outwards; the outer wall of the pump shaft is concavely provided with an annular clamping groove, the sealing body is sleeved on the pump shaft, and a guide inclined platform on the sealing body is abutted to the annular clamping groove. The utility model discloses an improve the seal structure of pump shaft, through set up the direction sloping platform on sealed body for the fluid in the drawing liquid intracavity flows along the direction sloping platform, avoids the fluid to get into drive arrangement along the pump shaft seepage inside, causes bonding, corruption or the operation unsmooth.

Description

Impeller pump with improved structure

Technical Field

The utility model relates to an impeller pump technical field especially relates to a construction improvement's impeller pump.

Background

The purpose of the pump is to convey fluid, which can be divided into various types according to its working principle. The impeller pump belongs to one kind of pump, and its structure comprises the pump body, impeller, pump shaft, pump cover, motor, is equipped with the pump chamber that holds the impeller in the pump body, and pump chamber and pump body exit intercommunication, the one end and the impeller center fixed connection of pump shaft, other end and motor fixed connection, drive the impeller by the motor and rotate, drive the high-speed rotation of fluid, transmit mechanical energy for fluid, pump fluid to the liquid outlet from the inlet of the pump body, realize the purpose that the fluid was carried. After long-time use, fluid in a liquid pumping cavity of the impeller pump may leak along a pump shaft and enter a pump body driving device, so that the problems of adhesion, corrosion or unsmooth operation are easily caused, the working performance of the impeller pump is affected, and the service life of the impeller pump is shortened.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the problems existing in the prior art, the utility model aims to provide a structure improvement's impeller pump through the seal structure who improves the pump shaft, has avoided the fluid in the drawing liquid intracavity to get into inside the pump body drive arrangement along the pump shaft seepage well, causes bonding, corruption or the not smooth and easy problem of operation, has promoted the working property of impeller pump, increase of service life greatly.

The purpose of the utility model is realized by adopting the following technical scheme: an impeller pump with improved structure comprises a pump body and a driving device; the pump body comprises a pump shell and a cover plate; the pump shell, the cover plate and the driving device are sequentially installed in a matched mode, and a closed liquid pumping cavity is formed between the inner cavity of the pump shell and the cover plate; the pump shell is respectively provided with a liquid inlet and a liquid outlet which are communicated with the liquid pumping cavity; the pump body further comprises a pump shaft, an impeller is arranged in the liquid pumping cavity, one end of the pump shaft is connected with the impeller, the other end of the pump shaft penetrates through the cover plate and is connected with the driving device, and the pump shaft drives the impeller to rotate under the driving of the driving device; the sealing element is characterized by also comprising a sealing element arranged between the cover plate and the driving device, wherein the sealing element comprises a sealing body and a guide inclined table formed by extending the sealing body outwards; the pump is characterized in that an annular clamping groove is concavely formed in the outer wall of the pump shaft, the sealing body is sleeved on the pump shaft, and a guide inclined table on the sealing body is abutted to the annular clamping groove, so that fluid in the liquid pumping cavity flows out along the guide inclined table, and the leakage is prevented from entering the interior of the driving device.

As a further explanation of the above scheme, a bearing installation cavity is arranged on one side of the cover plate close to the driving device, and the pump shaft is installed on the cover plate through the matching of the bearing and the bearing installation cavity; the bearing installation cavity is internally provided with a sealing element installation cavity, and the sealing element is installed in the sealing element installation cavity.

As a further explanation of the above scheme, the bottom of the guide ramp is provided with an annular step; the cover plate is provided with a limiting groove, and the annular step is abutted to the limiting groove.

As a further explanation of the above scheme, the middle part of the other end of the sealing body is inwardly recessed with a truncated cone-shaped recess coaxially arranged with the guide ramp.

As a further explanation of the above scheme, the truncated cone shaped convex guide ramp is integrally formed with the body seal body.

As a further explanation of the above scheme, the impeller is provided with a plurality of arc-shaped blades radially distributed from the center to the outside, and the arc-shaped blades are arranged with a gap from the surface of the cover plate.

As a further explanation of the above scheme, the horizontal plane of the bottom of the liquid outlet is lower than the horizontal plane of the upper surface of the cover plate.

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

1. the impeller pump of the utility model has the advantages that by improving the sealing structure of the pump shaft and arranging the guide sloping platform on the sealing body, the fluid in the liquid pumping cavity flows out along the guide sloping platform, so that the problem that the fluid in the liquid pumping cavity enters the pump body driving device along the leakage of the pump shaft to cause adhesion, corrosion or unsmooth operation is well avoided, the working performance of the impeller pump is greatly improved, and the service life is prolonged;

2. the impeller of the impeller pump of the utility model is provided with a plurality of arc-shaped blades, which effectively overcomes the residue accumulation problem in the use process; in addition, the height design of a liquid outlet is optimized, so that the fluid is discharged more directly and smoothly, and residues and fluid residues in the liquid pumping cavity are reduced, thereby further reducing the leakage of the fluid along the pump shaft and entering the interior of the pump body driving device;

3. the utility model discloses simple structure, the antiseep is effectual, easy to use.

Drawings

FIG. 1 is a schematic view of an impeller pump with an improved structure according to a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the vane pump with improved structure according to the preferred embodiment of the present invention;

FIG. 3 is a schematic sectional view of an impeller pump with a modified structure according to a preferred embodiment of the present invention;

FIG. 4 is a schematic view of a sealing member of an impeller pump according to a preferred embodiment of the present invention;

FIG. 5 is a schematic longitudinal sectional view of a seal member of a vane pump with an improved structure according to a preferred embodiment of the present invention;

FIG. 6 is a schematic view of a cover plate of an impeller pump according to a preferred embodiment of the present invention;

fig. 7 is a schematic structural view of an impeller pump with an improved structure according to a preferred embodiment of the present invention.

In the figure: 1. a pump body; 11. a pump housing; 111. a liquid inlet; 112. a liquid outlet; 12. a cover plate; 121. a bearing mounting cavity; 122. a seal mounting cavity; 123. a limiting groove; 13. a pump shaft; 131. an annular neck; 14. an impeller; 141. a circular arc blade; 2. a drive device; 3. a seal member; 31. a seal body; 32. a guide ramp; 321. an annular step; 33. a truncated cone-shaped recess; 34. a lubricant immersion chamber; 4. and a bearing.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings and examples. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "one end", "the other end", 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. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-7, a vane pump with improved structure comprises a pump body 1 and a driving device 2; the pump body 1 comprises a pump shell 11 and a cover plate 12; the pump shell 11, the cover plate 12 and the driving device 2 are sequentially installed in a matching mode, and a closed liquid pumping cavity is formed between the inner cavity of the pump shell 11 and the cover plate 12; the pump shell 11 is respectively provided with a liquid inlet 111 and a liquid outlet 112 which are communicated with the liquid pumping cavity; the pump body 1 further comprises a pump shaft 13, an impeller 14 is arranged in the liquid pumping cavity, one end of the pump shaft 13 is connected with the impeller 14, the other end of the pump shaft 13 penetrates through the cover plate 12 and is connected with the driving device 2, and the pump shaft 13 drives the impeller 14 to rotate under the driving of the driving device 2; the sealing device is characterized by further comprising a sealing element 3 arranged between the cover plate and the driving device, wherein the sealing element 3 comprises a sealing body 31 and a guide inclined table 32 formed by extending the sealing body outwards; the outer wall of the pump shaft is concavely provided with an annular clamping groove 131, the sealing body 31 is sleeved on the pump shaft 13, and a guide inclined table 32 on the sealing body is abutted to the annular clamping groove 131, so that fluid in the liquid pumping cavity flows out along the guide inclined table, and the leakage is prevented from entering the interior of the driving device.

The utility model discloses a vane pump working process as follows: the driving device 2 drives the pump shaft 13 to rotate, and since one end of the pump shaft 13 is connected with the impeller 14, the pump shaft 13 drives the impeller to rotate at a high speed, so that fluid enters the liquid extracting cavity from the liquid inlet 111 and is discharged from the liquid outlet 112.

In above-mentioned working process, the fluid in the drawing liquid intracavity can follow the pump shaft seepage and enter into inside the drive arrangement, the utility model discloses a set up sealing member 3 is through setting up the direction sloping platform on sealed body for the fluid in the drawing liquid intracavity flows along the direction sloping platform, has avoided the fluid in the drawing liquid intracavity to follow the pump shaft seepage well and has got into inside the drive arrangement, causes the problem that bonds, corrodes or the operation is not smooth and easy, has promoted the working property of impeller pump greatly, increase of service life.

In this embodiment, the pump shaft 13 is connected to a power output end of the driving device 2, and the driving device 2 is a driving device in the prior art, and the form is not limited as long as it can drive the pump shaft to drive the impeller to rotate.

As a further preferred embodiment, a bearing installation cavity 121 is arranged on one side of the cover plate 12 close to the driving device, and the pump shaft is installed on the cover plate through the matching of the bearing 4 and the bearing installation cavity; and a sealing element mounting cavity 122 is arranged in the bearing mounting cavity, and the sealing element is mounted in the sealing element mounting cavity. Through establishing the sealing member installation cavity in the bearing installation cavity, on the one hand, protect the bearing part to avoid corroding the damage because of oozing in the liquid pumping chamber, on the other hand, reduce the holistic part of impeller pump, make the global design compacter reasonable, optimize product design, reduce the whole volume of product, reduction production and cost of transportation.

As a further preferred embodiment, the bottom of the guide ramp 32 is provided with an annular step 321; the cover plate is provided with a limiting groove 123, and the annular step is abutted to the limiting groove. The cooperation of annular step and spacing groove for the sealing member installation is more fixed, does not shift.

As a further preferable embodiment, a truncated cone shaped recess 33 coaxially arranged with the guide ramp is inwardly recessed in the middle of the other end of the sealing body. The truncated cone-shaped recess 33 and the guide sloping platform 32 are designed coaxially and in the same direction, and the lubricating oil immersion cavity 34 is formed by the inner cavity of the guide sloping platform 32, the truncated cone-shaped recess 33 and the annular clamping groove 131, so that the relative friction between the pump shaft and the sealing element is reduced by adding lubricating oil, and the overall performance of the impeller pump is improved.

In order to enhance the leakage-proof performance of the whole sealing member 3, as a further preferred embodiment, the guiding ramp 32 is integrally formed with the sealing body 31.

Referring to fig. 4-5, the sealing element 3 of the present invention has a hollow guiding ramp 32 protruding outward from the middle of one end of the sealing body 31, and the top of the guiding ramp 32 faces the end of the pump shaft 13 connected to the impeller 14, and at the same time, an annular groove 131 for installing the sealing element 3 is concavely formed on the outer wall of the pump shaft 13; the stability of sealing member installation is improved simultaneously, has also utilized the shape characteristics of direction sloping platform 32 well, and annular step 321 of cooperation bottom even if appear fluid along the pump shaft seepage, also through the outer fringe water conservancy diversion of direction sloping platform 32 to annular step 321, can't get into drive arrangement 2's inside, multiple sealed design, the antiseep performance is better. Just the utility model discloses sealing member 3 structural design is simple reasonable, and the practicality is strong.

As a further preferred embodiment, the impeller 14 is provided with a plurality of circular arc-shaped blades 141 radially distributed from the center to the outside, and the circular arc-shaped blades 141 are spaced from the surface of the cover plate 12. The design reduces the bonding possibility like this, is equipped with a plurality of arc blades, effectively overcomes the residue in the use and piles up the problem.

In a further preferred embodiment, the bottom of the liquid outlet 112 is located at a level lower than the level of the upper surface of the cover plate 12. The design of the height of the liquid outlet is optimized, the height of the water outlet is low, so that the fluid is discharged more directly and smoothly, residues and fluid residues in the liquid pumping cavity are reduced, and the fluid is further reduced from leaking into the driving device along the pump shaft.

The above-described embodiments are merely preferred embodiments of the present invention, and the scope of the present invention should not be limited thereto, and it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principle and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impeller pump with improved structure comprises a pump body and a driving device; the pump body comprises a pump shell and a cover plate; the pump shell, the cover plate and the driving device are sequentially installed in a matched mode, and a closed liquid pumping cavity is formed between the inner cavity of the pump shell and the cover plate; the pump shell is respectively provided with a liquid inlet and a liquid outlet which are communicated with the liquid pumping cavity; the pump body further comprises a pump shaft, an impeller is arranged in the liquid pumping cavity, one end of the pump shaft is connected with the impeller, the other end of the pump shaft penetrates through the cover plate and is connected with the driving device, and the pump shaft drives the impeller to rotate under the driving of the driving device; the sealing element is characterized by also comprising a sealing element arranged between the cover plate and the driving device, wherein the sealing element comprises a sealing body and a guide inclined table formed by extending the sealing body outwards; the pump is characterized in that an annular clamping groove is concavely formed in the outer wall of the pump shaft, the sealing body is sleeved on the pump shaft, and a guide inclined table on the sealing body is abutted to the annular clamping groove, so that fluid in the liquid pumping cavity flows out along the guide inclined table, and the leakage is prevented from entering the interior of the driving device.

2. The improved vane pump of claim 1 wherein the cover plate has a bearing cavity on a side thereof adjacent the drive means, and the pump shaft is mounted on the cover plate by engagement of the bearing with the bearing cavity; the bearing installation cavity is internally provided with a sealing element installation cavity, and the sealing element is installed in the sealing element installation cavity.

3. The improved vane pump of claim 1 wherein the bottom of said guide ramp is provided with an annular step; the cover plate is provided with a limiting groove, and the annular step is abutted to the limiting groove.

4. The improved vane pump of claim 1 wherein the other end of the sealing body is recessed inwardly with a frustoconical recess disposed coaxially with the guide ramp.

5. The improved impeller pump of claim 1, wherein said guide ramp is integrally formed with said seal body.

6. The improved impeller pump as claimed in claim 1, wherein said impeller has a plurality of circular arc shaped vanes radially distributed from the center, said circular arc shaped vanes being spaced from the surface of said cover plate.

7. The improved impeller pump in accordance with claim 1, wherein the bottom of said discharge port is located at a level lower than the level of the upper surface of said cover plate.