CN203257733U - Impeller balancing structure of pipeline shielding pump - Google Patents
Impeller balancing structure of pipeline shielding pump Download PDFInfo
- Publication number
- CN203257733U CN203257733U CN 201320267879 CN201320267879U CN203257733U CN 203257733 U CN203257733 U CN 203257733U CN 201320267879 CN201320267879 CN 201320267879 CN 201320267879 U CN201320267879 U CN 201320267879U CN 203257733 U CN203257733 U CN 203257733U
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- impeller
- hole
- canned motor
- motor pump
- balance structure
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Abstract
The utility model provides an impeller balancing structure of a pipeline shielding pump, belonging to the field of mechanical technologies and solving the problems of complicated process, inconvenience and high cost because balance correcting of an impeller in an existing pipeline shielding pump needs to treated by a balancing machine. According to the impeller balancing structure of the pipeline shielding pump, an impeller comprises an impeller body and a plurality of blades, and a support hole is formed in the axes of the impeller body. The impeller balancing structure is characterized by comprising a plurality of balance weight holes formed in the back surface of the impeller body, the balance weight holes are uniformly distributed around the axes of the impeller and positioned in the edge of the support hole, and balancing weights are arranged in at least one balance weight hole and tightly matched the impeller. According to the impeller balancing structure of the pipeline shielding pump, through a design of the balance weight holes and the balancing weight, the balance of the impeller can be conveniently regulated, and the cost of correcting the balance of the impeller is also lowered.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of impeller balance structure of pipeline canned motor pump.
Background technique
The driving of Ordinary Centrifugal Pumps is to be connected with electric drive axle by the impeller shaft of coupling with pump, impeller is rotated together with motor and work.And canned motorpump is a kind of unprssurized pump, and pump and drive motor all are sealed in one and are pumped in the pressurized container that medium is full of, and this pressurized container only has static seal, and rotating magnetic field is provided and is driven rotor by an electric wire group.This structure has been cancelled the sealing device for rotary shaft that conventional centrifugal pump has, therefore can accomplish fully without leaking.Canned motorpump connects together pump and motor, and the rotor of motor and the impeller of pump are fixed on the same axis, utilizes housing that rotor and the stator of motor are separated, and rotor turns round in the medium that is transferred, and its power is passed to rotor by stator field.Therefore, canned motorpump often is used to carry precious liquid or be with radioactive liquid, is widely used in the fields such as civilian, industry and military project space flight.
Impeller refers to be equipped with the wheel disc of movable vane, is important component in pipeline canned motor pump.In existing pipeline canned motor pump, impeller is all to be arranged in the pump housing by axle, all exists in use easy vibration-generating of impeller, and noise is larger, also can have a strong impact on the normal operation of pipeline canned motor pump, and the bladed disk vibration problem is mostly because the impeller imbalance causes.In existing pipeline canned motor pump, when imbalance appears in impeller, all need by impeller dynamic balancing machine, impeller to be carried out balance correction and process, process is numerous and diverse, operation inconvenience, and inefficiency, and also the cost of impeller dynamic balancing machine is higher, has improved required cost.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, proposed a kind of impeller balance structure of pipeline canned motor pump, its technical problem to be solved is: in existing pipeline canned motor pump, the balance correction of impeller needs to process by balancing machine, and process is numerous and diverse, operation inconvenience, cost is high.
The purpose of this utility model can realize by following technical proposal: a kind of impeller balance structure of pipeline canned motor pump, impeller comprise wheel body and some blades, and the place, axle center of wheel body has supported hole; It is characterized in that, described impeller balance structure comprises several counterweights hole that is opened on the wheel body back side, all counterweights hole evenly distributes around the impeller axle center and is positioned at place, supported hole edge, is provided with balancing weight, described balancing weight and impeller drive fit at least in a described counterweight hole.
Offer the counterweight hole on the wheel body back side of impeller, when the uneven appearance vibration of impeller, can be by increase and decrease balancing weight in the counterweight hole, counterweight hole drive fit on balancing weight and impeller, thereby play the effect of the balance of adjusting impeller, whole trimming process is comparatively easy, easy-to-operat, and required cost is also lower.
In the impeller balance structure of above-mentioned pipeline canned motor pump, the quantity in described counterweight hole is 5 to 20.The quantity in counterweight hole very little, the precision of adjustment is relatively poor.The quantity in counterweight hole is too large, has increased the casting difficulty of impeller.The quantity in counterweight hole can guarantee higher balanced adjustment precision in the application's scope, the casting of impeller also more for convenience.
In the impeller balance structure of above-mentioned pipeline canned motor pump, described counterweight hole is cylindric; Described balancing weight is cylindric.Counterweight hole and balancing weight are cylindric, during balanced adjustment, increase and decrease balancing weight in the counterweight hole, operate more easy.
In the impeller balance structure of above-mentioned pipeline canned motor pump, diameter and the degree of depth in all described counterweights holes are all identical, and the diameter of all described balancing weights is identical.Diameter and the degree of depth in all counterweights hole are all identical, and the diameter of all balancing weights is identical, has facilitated making.When adjusting the balance of impeller, select according to demand the balancing weight of different-thickness.
In the impeller balance structure of above-mentioned pipeline canned motor pump, the bottom surface in described counterweight hole has the through hole of perforation.By the effect of through hole, when placing balancing weight in the counterweight hole, can not occur placing difficulty because the compressed pressure of gas in the counterweight hole increases to make.
In the impeller balance structure of above-mentioned pipeline canned motor pump, described pipeline canned motor pump comprises pump chamber and shielded partitions, and described impeller is positioned at pump chamber; Be fixed with the graphite support block in the supported hole of impeller, be provided with strut in described pump chamber, an end and the shielded partitions of described strut are connected; The other end penetrates and is fixed with ceramic block and ceramic block and graphite support block in supported hole and leans.By the mating reaction of ceramic block and graphite support block, the impeller running noises is lower, and cost is also lower, makes layout compactness, the balance reasonable, impeller more in pump chamber better.
In the impeller balance structure of above-mentioned pipeline canned motor pump, described ceramic block is spherical in shape, has spherically against groove on the abutment facing of graphite support block, spherically has strip groove on the groove groove face.Between ceramic block and graphite support block, for sphere coordinates, the control accuracy of the balance of impeller is higher.By the design of strip groove, the powder that ceramic block and the relative movement of graphite support block produce can be discharged from by strip groove.Simultaneously, by the design of strip groove, the liquid medium in pipeline canned motor pump can play lubrication to ceramic block and graphite support block by entering in strip groove, makes the rotation of impeller more smooth and easy.
Compared with prior art, the impeller balance structure of this pipeline canned motor pump has the following advantages:
1, by the design of counterweight hole and balancing weight, can adjust easily the balance of impeller, also reduced the cost that impeller balance is proofreaied and correct simultaneously.
2, coordinate by the sphere of ceramic block with the graphite support block between impeller and pump chamber, the balance quality that can control is higher, and the balance of impeller is better, and the noise of impeller operation is lower, can make again more compactness of layout in pump chamber, rationally simultaneously.
3, the spherical design of strip groove on the groove, be lubricated by the conveying liquid body medium, need not manually to add oiling agent, and the rotation of impeller is more smooth and easy, and noise is lower.
Description of drawings
Fig. 1 is the schematic diagram of the impeller balance structure of this pipeline canned motor pump.
Fig. 2 is the stereogram of this pipeline canned motor pump impeller.
Fig. 3 is the plan view of this pipeline canned motor pump impeller.
Fig. 4 is the structural drawing of this pipeline canned motor pump pump chamber.
In figure, 1, wheel body; 2, blade; 3, supported hole; 4, counterweight hole; 41, through hole; 5, balancing weight; 6, graphite support block; 61, spherical against groove; 61a, strip groove; 7, pump chamber; 8, shielded partitions; 9, strut; 10, ceramic block.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Fig. 1-4, impeller comprises wheel body 1 and some blades 2, and the place, axle center of wheel body 1 has supported hole 3.Pipeline canned motor pump comprises pump chamber 7 and shielded partitions 8, and impeller is positioned at pump chamber 7.Be fixed with graphite support block 6 in the supported hole 3 of impeller.Be provided with strut 9 in pump chamber 7, an end and the shielded partitions 8 of strut 9 are connected, and the other end penetrates and is fixed with ceramic block 10 and ceramic block 10 in supported hole 3 and leans with graphite support block 6.Ceramic block 10 is spherical in shape, has spherically against groove 61 on the abutment facing of graphite support block 6, spherically has strip groove 61a on groove 61 groove faces.Coordinate for sphere between ceramic block 10 and graphite support block 6.
This impeller balance structure comprises several counterweights hole 4 that is opened on wheel body 1 back side, and all counterweights hole 4 evenly distributes around the impeller axle center and is positioned at supported hole 3 places, edges, is provided with balancing weight 5, balancing weight 5 and impeller drive fit at least in a counterweight hole 4.When impeller is uneven when vibration occurring, can be by increase and decrease balancing weight 5 in counterweight hole 4, counterweight hole 4 drive fits on balancing weight 5 and impeller, thus play the effect of the balance of adjustment impeller.
More particularly, the quantity in counterweight hole 4 is 5 to 20.Counterweight hole 4 is cylindric; Balancing weight 5 is cylindric.The diameter in counterweight hole 4 and the degree of depth are all identical, and the diameter of all balancing weights 5 is identical.The bottom surface in counterweight hole 4 has the through hole 41 of perforation, guarantees that the air pressure in counterweight hole 4 is identical with external atmosphere pressure all the time, the fast installation of convenient breeding.
Coordinate by the sphere of ceramic block 10 with graphite support block 6 between this pipeline canned motor pump impeller and pump chamber 7, the balance quality that can control is higher, the balance of impeller is better, and the noise of impeller operation is lower, can make again more compactness of layout in pump chamber 7, rationally simultaneously.And, by the spherical design of strip groove 61a on the groove 61, be lubricated by the conveying liquid body medium, need not manually to add oiling agent, the rotation of impeller is more smooth and easy, and noise is lower.This impeller balance structure can be adjusted the balance of impeller easily by the design of counterweight hole 4 and balancing weight 5, has also reduced the cost that impeller balance is proofreaied and correct simultaneously.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used wheel body 1, blade 2, supported hole 3, counterweight hole 4, through hole 41, balancing weight 5, graphite support block 6, spherical against terms such as groove 61, strip groove 61a, pump chamber 7, shielded partitions 8, strut 9, ceramic blocks 10, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. the impeller balance structure of a pipeline canned motor pump, impeller comprises wheel body (1) and some blades (2), the place, axle center of wheel body (1) has supported hole (3); It is characterized in that, described impeller balance structure comprises several counterweight holes (4) that are opened on wheel body (1) back side, all counterweight holes (4) evenly distribute around the impeller axle center and are positioned at place, supported hole (3) edge, at least be provided with balancing weight (5) in a described counterweight hole (4), described balancing weight (5) and impeller drive fit.
2. the impeller balance structure of pipeline canned motor pump according to claim 1, is characterized in that, the quantity in described counterweight hole (4) is 5 to 20.
3. the impeller balance structure of pipeline canned motor pump according to claim 1 and 2, is characterized in that, described counterweight hole (4) is cylindric; Described balancing weight (5) is cylindric.
4. the impeller balance structure of pipeline canned motor pump according to claim 3, is characterized in that, diameter and the degree of depth in all described counterweight holes (4) are all identical, and the diameter of all described balancing weights (5) is identical.
5. the impeller balance structure of pipeline canned motor pump according to claim 4, is characterized in that, the bottom surface in described counterweight hole (4) has the through hole (41) of perforation.
6. the impeller balance structure of pipeline canned motor pump according to claim 5, is characterized in that, described pipeline canned motor pump comprises pump chamber (7) and shielded partitions (8), and described impeller is positioned at pump chamber (7); Be fixed with graphite support block (6) in the supported hole of impeller (3), be provided with strut (9) in described pump chamber (7), an end of described strut (9) and shielded partitions (8) are connected; The other end penetrates and is fixed with ceramic block (10) and ceramic block (10) in supported hole (3) and leans with graphite support block (6).
7. the impeller balance structure of pipeline canned motor pump according to claim 6, it is characterized in that, described ceramic block (10) is spherical in shape, has spherically against groove (61) on the abutment facing of graphite support block (6), spherically has strip groove (61a) on groove (61) groove face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320267879 CN203257733U (en) | 2013-05-15 | 2013-05-15 | Impeller balancing structure of pipeline shielding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320267879 CN203257733U (en) | 2013-05-15 | 2013-05-15 | Impeller balancing structure of pipeline shielding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257733U true CN203257733U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320267879 Expired - Fee Related CN203257733U (en) | 2013-05-15 | 2013-05-15 | Impeller balancing structure of pipeline shielding pump |
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| CN (1) | CN203257733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514388A (en) * | 2017-09-01 | 2017-12-26 | 上海诺地乐通用设备制造有限公司 | It is a kind of to carry balanced compensated impeller and balance antidote |
-
2013
- 2013-05-15 CN CN 201320267879 patent/CN203257733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514388A (en) * | 2017-09-01 | 2017-12-26 | 上海诺地乐通用设备制造有限公司 | It is a kind of to carry balanced compensated impeller and balance antidote |
| CN107514388B (en) * | 2017-09-01 | 2024-02-09 | 英飞同仁风机股份有限公司 | Impeller with balance compensation and balance correction method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20170515 |