CN203348096U - Automatic balance structure of shielded motor pump - Google Patents
Automatic balance structure of shielded motor pump Download PDFInfo
- Publication number
- CN203348096U CN203348096U CN 201320281585 CN201320281585U CN203348096U CN 203348096 U CN203348096 U CN 203348096U CN 201320281585 CN201320281585 CN 201320281585 CN 201320281585 U CN201320281585 U CN 201320281585U CN 203348096 U CN203348096 U CN 203348096U
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- CN
- China
- Prior art keywords
- automatic balance
- balance structure
- pump
- impeller
- motor pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an automatic balance structure of a shielded motor pump. The automatic balance structure comprises an impeller (1) and a rear covering plate (2), wherein the impeller (1) and the rear covering plate (2) are mutually connected. The automatic balance structure is characterized in that a pressure cavity is formed between the impeller (1) and the rear covering plate (2), the pressure cavity is divided into an upper cavity body (3) and a lower cavity body (4), and a damping gap is formed between the upper cavity body (3) and the lower cavity body (4). The automatic balance structure of the shielded motor pump is simple in structure, ingenious in design, reasonable in layout and capable of guaranteeing that the axial pushing force of the pump is kept within a reasonable value range when flow is within the range from the zero flow point to the 120% rated flow.
Description
Technical field
The utility model relates to a kind of shielded electric-pump internal structure, particularly a kind of shielded electric-pump automatic balancing structure.
Background technique
In order to realize the pressure balance of back shroud, be provided with a pressure chamber that is used for adjusting equilibrant between impeller and back shroud in traditional shielded electric-pump, the pressure distribution of this structure is straight line.The axle thrust adjusting difficulty of part shielded electric-pump is larger, and during fine adjustments, the variation of axle thrust is very responsive.After occurring that sometimes axle thrust is adjusted qualified dispatching from the factory, the parameter variation in customers' place during due to production environment and actual conditions and order greatly, causes the axle thrust of shielded electric-pump excessive, affects the performance of pump itself, and serious even can cause the damage of pump.Therefore need now a kind of equilibrium structure of the Novel shielding electric pump that can address the above problem.
Summary of the invention
The utility model is in order to solve the existing above-mentioned deficiency of prior art, propose a kind of simple in structurely, design ingenious, rationally distributed, the axle thrust that can guarantee pump o'clock in the scope of 120% rated flow, all remains on the shielded electric-pump automatic balancing structure in reasonable number range from zero delivery.
Technical solution of the present utility model is: a kind of shielded electric-pump automatic balancing structure, comprise interconnective impeller 1 and back shroud 2, it is characterized in that: mineralization pressure chamber between described impeller 1 and back shroud 2, this pressure chamber is divided into upper chamber 3 and lower chambers 4, between upper chamber 3 and lower chambers 4, is provided with damping clearance.
The utility model compared with the existing technology, has following advantage:
The shielded electric-pump automatic balancing structure of this kind of structural type, with the structure of traditional shielded electric-pump, compare, at first increased the solvent of pressure chamber, make the ability of its balancing axial thrust strengthen, therefore can in a relatively wide range of flow, carry out balancing axial thrust, it changes a pressure chamber into two two chambers that utilize damping clearance to be communicated with simultaneously, plays the effect of buffering, has improved the effect of balancing axial thrust.Through test, the axle thrust that it can guarantee pump from zero delivery o'clock in 120% rated flow scope, all in a rational number range.And its preparation process is simple, cheap for manufacturing cost, therefore can say that it has possessed multiple advantage, be particularly suitable for applying in the art, its market prospects are very wide.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.As shown in Figure 1: a kind of shielded electric-pump automatic balancing structure, comprise interconnective impeller 1 and back shroud 2, mineralization pressure chamber between impeller 1 and back shroud 2, and this pressure chamber is comprised of upper chamber 3 and lower chambers 4 two-part, between upper chamber 3 and lower chambers 4, is provided with damping clearance.
Claims (1)
1. a shielded electric-pump automatic balancing structure, comprise interconnective impeller (1) and back shroud (2), it is characterized in that: mineralization pressure chamber between described impeller (1) and back shroud (2), this pressure chamber is divided into upper chamber (3) and lower chambers (4), between upper chamber (3) and lower chambers (4), is provided with damping clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281585 CN203348096U (en) | 2013-05-22 | 2013-05-22 | Automatic balance structure of shielded motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281585 CN203348096U (en) | 2013-05-22 | 2013-05-22 | Automatic balance structure of shielded motor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348096U true CN203348096U (en) | 2013-12-18 |
Family
ID=49748004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320281585 Expired - Fee Related CN203348096U (en) | 2013-05-22 | 2013-05-22 | Automatic balance structure of shielded motor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281861A (en) * | 2018-11-28 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of axial force automatic balancing device, water pump and air conditioner |
-
2013
- 2013-05-22 CN CN 201320281585 patent/CN203348096U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281861A (en) * | 2018-11-28 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of axial force automatic balancing device, water pump and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20190522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |