CN107701462B

CN107701462B - Pump with a pump body

Info

Publication number: CN107701462B
Application number: CN201710968975.7A
Authority: CN
Inventors: 韩中; 王晨光; 谢镇洲; 谢蓉; 何国栋; 颜家桃
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2023-08-18
Anticipated expiration: 2037-10-18
Also published as: CN107701462A

Abstract

The invention relates to the field of driving equipment, in particular to a pump, which comprises a driving assembly and a driven assembly, wherein the driving assembly comprises a motor bracket and a motor, the driven assembly comprises a pump shell, a pump shaft driven by the motor, and a working part which is arranged on the pump shaft and is positioned in an inner cavity of the pump shell, the motor is supported by the motor bracket, the movement of the working part enables a medium to be conveyed in the inner cavity of the pump shell to move, and the pump further comprises an evaporation accelerating structure for accelerating evaporation of liquid attached to the motor bracket. According to the pump disclosed by the invention, the evaporation of the liquid attached to the motor support is accelerated through the evaporation device, so that on one hand, the motor support is prevented from rusting by the liquid, the reliability of the motor support is improved, and on the other hand, the liquid is prevented from flowing into a sealing structure between the motor support and the pump shaft, so that the reliability of the pump is further improved.

Description

Pump with a pump body

Technical Field

The invention relates to the field of driving equipment, in particular to a pump.

Background

The single-stage single-suction pipeline type centrifugal pump has extremely strong universality and is widely applied to industries such as water circulation systems, heating and ventilation systems, high-rise pressurization, fire control and pressure stabilization, industrial transportation, petrochemical industry and the like of air conditioners. However, the generalized design often does not consider specific details of specific use environments, such as a freeze pump used in an air conditioning system, and condensed water is inevitably accumulated at the bottom of the motor bracket 11, as shown in fig. 1, on one hand, bacteria are easily nourished, on the other hand, the motor bracket is caused to rust with acceleration, so that reliability is reduced, in addition, accumulated condensed water can flow into a sealing structure along a gap between a pump shaft and a shaft hole, which threatens the reliability of the sealing structure, and further influences the reliability of the whole water pump.

Disclosure of Invention

In view of the above, the present invention is directed to a pump for solving the problem that the reliability of the pump is affected due to the condensed water accumulated on the motor bracket of the pump.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a pump, includes drive assembly and driven assembly, drive assembly includes motor support and motor, driven assembly includes the pump case, by motor drive's pump shaft, and set up pump epaxial and be located the working element in the inner chamber of pump case, the motor is supported by the motor support, the motion of working element makes the medium that waits to carry in the pump case inner chamber motion, still includes the evaporation accelerating structure for the evaporation of the liquid that adheres to on the motor support.

Further, the evaporation accelerating structure comprises a fan blade.

Further, the fan blade is driven by the motor to move.

Further, the driven component further comprises a coupler, a motor shaft of the motor is connected with the pump shaft through the coupler, and the fan blade is arranged on the coupler.

Further, the fan blades are arranged in a plurality along the circumferential direction and/or the axial direction of the coupler.

Further, a drain structure for draining condensed water is arranged on the motor bracket.

Further, the drainage structure is a drainage hole.

Further, the motor support is barrel-shaped structure, barrel-shaped structure includes lateral wall and bottom, the bottom is provided with the shaft hole, the pump shaft passes the shaft hole with the motor shaft of motor is connected, the drainage hole sets up be close to on the lateral wall of motor support the position of bottom.

Further, the evaporation accelerating structure is positioned in the inner cavity of the motor bracket.

Further, the pump also includes a sealing structure disposed between the pump shaft and the bottom of the motor mount.

The pump in the invention accelerates the evaporation of the liquid attached to the motor bracket through the accelerating evaporation structure, thereby avoiding the liquid from rusting the motor bracket on one hand, and further increasing the reliability of the pump by increasing the reliability of the motor bracket and avoiding the liquid from flowing into the sealing structure between the motor bracket and the pump shaft on the other hand.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a prior art pump;

FIG. 2 is a cross-sectional view of a pump provided in an embodiment of the present invention;

fig. 3 is a front view of a pump provided in an embodiment of the present invention.

In the figure:

1. a drive assembly; 11. a motor bracket; 111. a sidewall; 112. a bottom; 1121. a shaft hole; 113. a drainage structure; 1131. drainage holes; 12. a motor; 121. a motor shaft;

2. a driven assembly; 21. a pump housing; 22. a pump shaft; 23. a working member; 231. an impeller; 24. a coupling;

3. an accelerating evaporation structure; 31. a fan blade;

4. and (5) a sealing structure.

Detailed Description

The present invention is described below based on embodiments, and it will be understood by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

Referring to fig. 2 and 3, the present invention provides a pump capable of avoiding damage to the pump by liquid attached to a motor bracket 11, comprising a driving assembly 1, a driven assembly 2 and an accelerating evaporation structure 3.

As shown in fig. 2, the driving assembly 1 includes a motor support 11 and a motor 12 fixed on the motor support 11, the motor support 11 is in a barrel-shaped structure, the barrel-shaped structure includes a side wall 111 and a bottom 112, the motor 12 is fixed on the motor support 11 by means of threaded connection, welding, etc. and is located at one end far away from the bottom 112 of the motor support 11, one end of the motor support 11 far away from the bottom 112 is an open end, a motor shaft 121 of the motor 12 extends into an inner cavity of the motor support 11 through the opening, and the bottom 112 of the motor support 11 is provided with a shaft hole 1121.

As shown in fig. 2, the driven assembly 2 includes a pump housing 21, a pump shaft 22 driven by the motor 12, and a working member 23 provided on the pump shaft 22 and located in an inner cavity of the pump housing 21. The pump shaft 22 passes through the shaft hole 1121 of the motor bracket 11 to be connected with the motor shaft 121 of the motor 12, and for convenience in connection, the driven assembly 2 further comprises a coupling 24, and the pump shaft 22 passes through the shaft hole 1121 to be connected with the motor shaft 121 of the motor 12 through the coupling 24. In order to prevent the medium in the pump housing from flowing to the motor support 11, the pump according to the invention further comprises a sealing structure 4, said sealing structure 4 being arranged between said pump shaft 22 and the bottom 112 of said motor support 11. The movement of the working member 23 moves the medium to be conveyed in the inner cavity of the pump housing 21, preferably the working member 23 is an impeller 231, in which case the pump according to the invention is an impeller pump, although the pump according to the invention may also be a positive displacement pump (not shown).

As shown in fig. 3, the pump of the present invention further comprises an accelerating evaporation structure 3 for accelerating evaporation of the liquid attached to the motor bracket 11, wherein the liquid attached to the motor bracket 11 includes condensed water attached to the motor bracket 11, for example, condensed water formed on the motor bracket 11 when the single-stage single-suction pipeline type off-line pump is used as a freezing pump of an air conditioning system. The evaporation accelerating structure 3 may be any structure capable of accelerating evaporation of liquid such as condensed water, for example, an electric heating assembly, and in order to simplify the structure, it is preferable that the evaporation accelerating structure 3 includes a fan blade 31. Further, in order to simplify the structure and reduce the energy consumption, the fan blade 31 is driven by the motor 12 to move, and a preferred embodiment of the motor 12 driving the fan blade 31 to move is that the fan blade 31 is disposed on the coupling 24, and in this case, the fan blade 31 is located in the inner cavity of the motor bracket 11. In order to facilitate the installation of the fan blades 31 on the shaft coupling 24, the shaft coupling 24 is selected as the shaft coupling 24 with uniform outer diameter. The fan blade 31 may be integrally formed with the coupling 24, or may be detachably and fixedly connected with the coupling 24 by welding, bonding, or the like, or may be detachably and fixedly connected with the coupling 24 by fastening, plugging, or the like. In order to increase the evaporation efficiency of the condensed water, it is further preferable that the fan blades 31 are provided in plurality in the circumferential direction and/or the axial direction of the coupling.

When the evaporation effect of the evaporation accelerating structure 3 on the liquid attached to the motor support 11 is insufficient to evaporate the liquid completely, the liquid is accumulated in the inner cavity of the motor support 11, so that on one hand, the motor support 11 is rusted, the reliability of the motor support 11 is reduced, and on the other hand, the liquid flows into the sealing structure 4 from the gap between the shaft hole 1121 of the bottom 112 of the motor support 11 and the pump shaft 22, and influences the reliability of the sealing structure 4, so that the reliability of the whole pump is reduced, and therefore, a drainage structure 113 for draining the liquid is arranged on the motor support 11, as shown in fig. 2. The drainage structure 113 may be a drainage groove or the like, and preferably, the drainage structure 113 is a drainage hole 1131. In order to further enable the liquid accumulated at the bottom 112 of the inner cavity of the motor support 11 to flow away in time, the drainage holes 1131 are arranged on the side wall 111 of the motor support 11 at a position close to the bottom 112.

A common application of the pump according to the invention is as a cryopump for an air conditioning system, where the axis of the drain 1131 preferably forms an angle with the horizontal plane, and the axis of the drain 1131 is inclined downwards in a direction away from the inner cavity of the motor support 11, so that the liquid accumulating in the inner cavity of the motor support 11 is facilitated to flow out, preferably at an angle of 9 ° -11 °, further preferably at an angle of 10 °. Furthermore, in order to timely discharge the liquid accumulated in the inner cavity of the motor housing 11, the diameter of the drainage hole 1131 is preferably 8-11mm, and further preferably, the diameter of the drainage hole 1131 is 10mm.

The pump provided by the invention works in a process that the motor 12 drives the pump shaft 22 to rotate, so that the impeller 231 arranged on the pump shaft 22 rotates, and further the movement of a medium is realized. When the motor shaft 121 of the motor 12 rotates, the fan blades 31 mounted on the coupling 24 rotate with the rotation of the motor shaft 121 of the motor 12, thereby accelerating the evaporation of the liquid attached to the motor bracket 11, preventing the damage of the liquid to the motor bracket 11, while the liquid attached to the motor bracket 11, which is not evaporated, accumulates at the bottom 112 of the motor bracket 11, flows away from the drainage holes 1131 on the side wall 111 of the motor bracket 11, avoiding the damage of the sealing structure 4 provided between the liquid motor bracket 11 and the pump shaft 22, and increasing the reliability of the pump.

In summary, the pump of the present invention accelerates evaporation of the liquid attached to the motor support 11 by the evaporation device, thereby preventing the liquid from rusting the motor support 11 on the one hand, and thus increasing reliability of the motor support 11, and preventing the liquid from flowing into the sealing structure 4 between the motor support 11 and the pump shaft 22 on the other hand, thereby further increasing reliability of the pump.

It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pump comprising a drive assembly and a driven assembly, the drive assembly comprising a motor support and a motor, the driven assembly comprising a pump housing, a pump shaft driven by the motor, and a working member disposed on the pump shaft and located in an interior cavity of the pump housing, the motor being supported by the motor support, movement of the working member moving a medium to be conveyed in the interior cavity of the pump housing, characterized by further comprising an evaporation accelerating structure for accelerating evaporation of liquid attached to the motor support;

the accelerating evaporation structure is positioned in the inner cavity of the motor bracket and comprises fan blades;

the driven component further comprises a coupler, a motor shaft of the motor is connected with the pump shaft through the coupler, the fan blades are arranged on the coupler, and the fan blades and the coupler form an integrated structure, are in non-detachable fixed connection or detachable fixed connection; the fan blades are arranged in a plurality along the circumferential direction and/or the axial direction of the coupler.

2. The pump of claim 1, wherein the fan blade is driven by the motor.

3. Pump according to claim 1, characterized in that the fan blades are arranged in a plurality in the circumferential and/or axial direction of the coupling.

4. A pump according to any one of claims 1 to 3, wherein a drain structure for draining condensed water is provided on the motor support.

5. The pump of claim 4, wherein the drainage structure comprises drainage apertures.

6. The pump of claim 5, wherein the motor support is in a barrel-shaped structure, the barrel-shaped structure comprises a side wall and a bottom, the bottom is provided with a shaft hole, the pump shaft penetrates through the shaft hole to be connected with a motor shaft of the motor, and the drainage hole is arranged on the side wall of the motor support and is close to the bottom.

7. The pump of claim 6, further comprising a sealing structure disposed between the pump shaft and a bottom of the motor mount.