CN206397751U - A kind of cold centrifugal pump of liquid without shaft seal structure - Google Patents
A kind of cold centrifugal pump of liquid without shaft seal structure Download PDFInfo
- Publication number
- CN206397751U CN206397751U CN201621276956.5U CN201621276956U CN206397751U CN 206397751 U CN206397751 U CN 206397751U CN 201621276956 U CN201621276956 U CN 201621276956U CN 206397751 U CN206397751 U CN 206397751U
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- China
- Prior art keywords
- pump case
- motor
- hollow shaft
- liquid
- sliding bearing
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- 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.)
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Abstract
A kind of cold centrifugal pump of liquid without shaft seal structure, including pump case (1), sliding bearing (2), motor (3), hollow shaft (301), stator module (302), rotor assembly (303), motor (3) is connected on the outside of pump case (1) with pump case (1), hollow shaft (301) is machine shaft, the hollow shaft (301) rotates through pump case impeller (4), sliding bearing (2) is sleeved in the hollow shaft (301), sliding bearing (2) outer rim is contacted with pump case (1), the part that the pump case (1) is connected with motor (3) is provided with via hole, the internal stator module (302) of motor (3) is wrapped up with high polymer material embedding, rotor assembly (303) is wrapped up with stainless steel material.
Description
Technical field
The utility model belongs to Centrifugal Pump Design field, be related to a kind of cold centrifugal pump of liquid without shaft seal structure.
Background technology
The cold centrifugal pump of liquid is airborne ring draining cooling system core component, and function is No. 65 coolant streams in driving liquid cooling system
It is dynamic, cool down electronic equipment.The cold centrifugal pump of liquid is general by inlet, pump case, impeller, liquid outlet, shaft seal structure and motor group
Into.When the motor shaft of the cold centrifugal pump of liquid passes through pump case, there is gap between axle and pump case, such as take no action to, when liquid pressure
When power is more than ambient pressure environment, coolant will enter motor internal, corrosion bearing, stator assembly and rotor assembly；Work as liquid
When body pressure is less than ambient pressure environment, extraneous air enters in pump case, influences the performance of pump, even results in generation vent plug.For
This, gap location that need to be between motor shaft and pump case sets sealing structure, referred to as axle envelope.Conventional shaft seal structure has cup packing
And mechanical seal.Two kinds of shaft seal structures all there are problems that Seepage and the life-span it is shorter need to.
Utility model content
The purpose of this utility model is：The utility model purpose is to solve the cold centrifugal pump seal leakage problems of liquid to be thorough,
A kind of new structure-cancellation axle envelope is proposed, motor uses graphite sliding bearing, and No. 65 coolants can be directly entered motor internal
Circulation.
The technical solution of the utility model is：A kind of cold centrifugal pump of liquid without shaft seal structure, including pump case (1), sliding axle
(2), motor (3), hollow shaft (301), stator module (302), rotor assembly (303) are held, motor (3) is in pump case
(1) outside is connected with pump case (1), and hollow shaft (301) is machine shaft, and the hollow shaft (301) passes through pump case impeller (4)
Rotation, sliding bearing (2) is sleeved in the hollow shaft (301), and sliding bearing (2) outer rim is contacted with pump case (1), the pump case
(1) part being connected with motor (3) is provided with via hole, and the internal stator module (302) of motor (3) is filled with high polymer material
Package is wrapped up in, and rotor assembly (303) is wrapped up with stainless steel material.
The utility model has the advantages that：Solve work long hours axle envelope seepage and Problem of Failure, and simplify structure,
Improve product reliability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of cold centrifugal pump of liquid without shaft seal structure, including pump case (1), sliding bearing (2), motor (3), hollow shaft
(301), stator module (302), rotor assembly (303), motor (3) are connected on the outside of pump case (1) with pump case (1), hollow
Axle (301) is machine shaft, and the hollow shaft (301) rotates through pump case impeller (4), and sliding bearing (2) is sleeved on institute
State in hollow shaft (301), sliding bearing (2) outer rim is contacted with pump case (1), the portion that the pump case (1) is connected with motor (3)
Via hole is arranged with, the internal stator module (302) of motor (3) is wrapped up with high polymer material embedding, and rotor assembly (303) is not with
Become rusty Steel material parcel.
The part that the pump case (1) is connected with motor (3) is provided with via hole, is higher-pressure region, hollow shaft (301) is with entering
Liquid mouthful conducting, is low-pressure area, and pressure difference is produced therebetween makes No. 65 coolants in motor (3) internal flow, takes away simultaneously
The heat produced in stator module (302) and rotor assembly (303).
The working media of the cold centrifugal pump of liquid is No. 65 coolants, and it possesses certain corrosivity and electric conductivity, therefore stator pack
Silicon steel sheet can not directly contact coolant in winding and rotor assembly (303) in part (302), to reach in motor (3)
Coolant purpose is entered in portion, need to wrap up stator module (302) with high polymer material embedding, rotor assembly (303) uses stainless steel
Material parcel, makes them not contacted with No. 65 coolants directly.Stator module (302) and rotor assembly (303) are improved simultaneously
Surface smoothness, reduces and stirs liquid loss.
Claims (1)
1. a kind of cold centrifugal pump of liquid without shaft seal structure, including pump case (1), sliding bearing (2), motor (3), hollow shaft
(301), stator module (302), rotor assembly (303), it is characterised in that motor (3) is in pump case (1) outside and pump case
(1) connect, hollow shaft (301) is machine shaft, the hollow shaft (301) rotates through pump case impeller (4), sliding bearing
(2) it is sleeved in the hollow shaft (301), sliding bearing (2) outer rim is contacted with pump case (1), the pump case (1) and motor
(3) part of connection is provided with via hole, and the internal stator module (302) of motor (3) is wrapped up with high polymer material embedding, rotor set
Part (303) is wrapped up with stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621276956.5U CN206397751U (en) | 2016-11-24 | 2016-11-24 | A kind of cold centrifugal pump of liquid without shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621276956.5U CN206397751U (en) | 2016-11-24 | 2016-11-24 | A kind of cold centrifugal pump of liquid without shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397751U true CN206397751U (en) | 2017-08-11 |
Family
ID=59510062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621276956.5U Active CN206397751U (en) | 2016-11-24 | 2016-11-24 | A kind of cold centrifugal pump of liquid without shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389722A (en) * | 2020-03-12 | 2021-09-14 | Fte汽车有限责任公司 | Liquid pump |
-
2016
- 2016-11-24 CN CN201621276956.5U patent/CN206397751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389722A (en) * | 2020-03-12 | 2021-09-14 | Fte汽车有限责任公司 | Liquid pump |
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| GR01 | Patent grant |