CN203257722U - Pump shaft and motor shaft connection structure for residual heat removal pump - Google Patents
Pump shaft and motor shaft connection structure for residual heat removal pump Download PDFInfo
- Publication number
- CN203257722U CN203257722U CN 201320182324 CN201320182324U CN203257722U CN 203257722 U CN203257722 U CN 203257722U CN 201320182324 CN201320182324 CN 201320182324 CN 201320182324 U CN201320182324 U CN 201320182324U CN 203257722 U CN203257722 U CN 203257722U
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- pump
- shaft
- motor shaft
- pump shaft
- coupling
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Abstract
The utility model discloses a pump shaft and motor shaft connection structure for a residual heat removal pump in the field of nuclear power equipment. The pump shaft and motor shaft connection structure comprises a pump shaft and a motor shaft, wherein the pump shaft is connected with the motor shaft through a rigid coupler, and the two ends of the rigid coupler are fixedly connected with the top of the pump shaft and the bottom of the motor shaft respectively in a sleeved mode. The pump shaft and motor shaft connection structure has the advantages that through the rigid coupler, axial force borne by the pump shaft is transmitted to the motor shaft and borne by a bearing on the motor shaft, therefore, the pump shaft only need to be connected with a radial bearing in a sleeved mode, and the radial bearing is difficult to damage.
Description
Technical field
The utility model relates to a kind of pump shaft and the motor shaft linkage structure for residual heat removal pump in nuclear power equipment field.
Background technique
Residual heat removal pump is the nuclear triplex of million kilowatt nuclear power station reactor, its Main Function is in the reactor shutdown, discharge the waste heat of reactor coolant, be that residual heat removal pump carries the waste heat of reactor coolant to satisfy the cooling requirement of nuclear power station to residual-heat exchanger, and then ensured the nuclear power station reliability of operation, Security, it occupies irreplaceable effect in nuclear power station.
Residual heat removal pump will could turn round under the driving of motor, in order to make the rotation of driven by motor residual heat removal pump, connects the pump shaft of residual heat removal pump and the motor shaft of motor by diaphragm type coupler.Diaphragm type coupler can not transmit the suffered axial force of pump shaft.In order to guarantee that whole residual heat removal pump can bear axial force, just need to be on the pump shaft of residual heat removal pump the bearing support of socket join structure complexity, the overall structure that causes residual heat removal pump is complicated, causes the whole height of residual heat removal pump can't satisfy the needs of the construction of nuclear power station.
Simultaneously, because the pressure of residual heat removal pump inlet is up to 3.7MPa, even therefore the pump shaft of residual heat removal pump has overlapped baroque bearing support, the suffered axial force of pump shaft remains very large, this will cause the bearing support that is socketed on the residual heat removal pump pump shaft directly to be destroyed by axial force, and lead to a disaster.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of pump shaft for residual heat removal pump and motor shaft linkage structure are provided, its can pump shaft is suffered axial force transmission to motor shaft, and bear the suffered axial force of pump shaft by the bearing on the motor shaft.
A kind of technological scheme that realizes above-mentioned purpose is: a kind of pump shaft and motor shaft linkage structure for residual heat removal pump comprise pump shaft and motor shaft;
Described pump shaft be connected motor shaft and connect by rigid coupling, the two ends of described rigid coupler respectively with the bottom socket of the top of described pump shaft and described motor shaft and fixing.
Further, described rigid coupling is divided into pump shaft end coupling, intermediate shaft coupling and motor shaft end coupling, the top socket of described pump shaft end coupling and described pump shaft is also fixing, the bottom socket of described motor shaft end coupling and described motor shaft is also fixing, and described intermediate shaft coupling is fixed respectively by hexagon head hinged bolts and described pump shaft end coupling, described motor shaft end coupling.
Further, described pump shaft end coupling is by the top socket of driving key and described pump shaft, and described motor shaft end coupling is by the bottom socket of driving key and described motor shaft.
Further, the end face of described pump shaft end coupling and the end face of described pump shaft are fixed by the first screw, and the bottom surface of described motor shaft end coupling and the underrun of motor shaft the second screw are fixed.
Further, be socketed radial bearing on the excircle of described pump shaft end coupling.
Adopted of the present utility model a kind of for the pump shaft of residual heat removal pump and the technological scheme of motor shaft linkage structure, namely between described pump shaft and described motor shaft the socket rigid coupling technological scheme.Its technique effect is: by described rigid coupling, the axial force transmission that described pump shaft is subject to is to described motor shaft, and bear the suffered axial force of described pump shaft by the bearing on the described motor shaft, therefore only need radial bearing of socket to get final product on the described pump shaft, and this radial bearing is not fragile.
Description of drawings
Fig. 1 is of the present utility model a kind of for the pump shaft of residual heat removal pump and the schematic representation of motor shaft linkage structure.
Embodiment
See also Fig. 1, inventor of the present utility model be in order to understand the technical solution of the utility model better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Adopt the reason of rigid coupling 3 to be between pump shaft 1 and the motor shaft 2, structure or segmental structure that no matter this rigid coupling 3 is integral types: the axial force transmission that rigid coupler 3 can bear pump shaft 1 and is born the suffered axial force of pump shaft 1 by the bearing (not shown) that is socketed on the motor shaft 2 to motor shaft 2.Therefore no longer include the complicated structures such as necessary installation bearing support between pump shaft 1 and the motor cabinet (not shown), only need to be at pump shaft end coupling 31, radial bearing 4 of socket can play the intermediate support effect to pump shaft 1 on the pump shaft 1 in other words conj.or perhaps, with the stability of assurance residual heat removal pump, and this radial bearing 4 is non-damageable in the process of residual heat removal pump operation.Such design has greatly reduced attached component on the residual heat removal pump, and convenient assembling and maintenance for residual heat removal pump integral body.Also reduced simultaneously the height of the integral body of residual heat removal pump, so that vertical residual heat removal pump also fully can be the same with horizontal residual heat removal pump, satisfy in the construction of nuclear power station specifications requirement for the height of residual heat removal pump, overall structure and height aspect all have advantage.
The segmental structure that rigid coupling 3 adopts with intermediate shaft coupling 32, its benefit is: because the height of intermediate shaft coupling 32 is higher than the height of gland seal device (not shown) in the residual heat removal pump, when residual heat removal pump is keeped in repair, can be by removing intermediate shaft coupling 32, quick-replaceable gland seal device in the situation of not removing motor, make things convenient for site examining and repairing, reduced greatly the engineering time of pump.
In the present embodiment, be used for connecting the hexagon head hinged bolts 34 of motor shaft end coupling 31 and intermediate shaft coupling 32, and the hexagon head hinged bolts 34 that is used for connecting motor shaft end coupling 33 and intermediate shaft coupling 32 cooperates with pin-and-hole with the fit system of transition fit all.Take the reason of transition fit to be: it can be better by transmitting the moment of torsion that is subject in these rigid coupling 3 rotary courses, the axial force transmission that pump shaft 1 is suffered is to motor shaft 2, simultaneously, eliminate between pump shaft end coupling 31 and the intermediate shaft coupling 32, and the fit up gap between motor shaft end coupling 33 and the intermediate shaft coupling 32, thereby improved the centering of pump shaft 1 and motor shaft 2.
Claims (5)
1. pump shaft and a motor shaft linkage structure that is used for residual heat removal pump comprises pump shaft (1) and motor shaft (2); It is characterized in that:
Described pump shaft (1) be connected motor shaft (2) and connect by rigid coupling (3), the two ends of described rigid coupler (3) respectively with the bottom socket of the top of described pump shaft (1) and described motor shaft (2) and fixing.
2. a kind of pump shaft and motor shaft linkage structure for residual heat removal pump according to claim 1, it is characterized in that: described rigid coupling (3) is divided into pump shaft end coupling (31), intermediate shaft coupling (32) and motor shaft end coupling (33), described pump shaft end coupling (31) is socketed and fixes with the top of described pump shaft (1), described motor shaft end coupling (33) is socketed and fixes with the bottom of described motor shaft (2), and described intermediate shaft coupling (32) is by hexagon head hinged bolts (34) and described pump shaft end coupling (31), described motor shaft end coupling (33) is fixing respectively.
3. a kind of pump shaft and motor shaft linkage structure for residual heat removal pump according to claim 2, it is characterized in that: described pump shaft end coupling (31) is by the top socket of driving key and described pump shaft (1), and described motor shaft end coupling (33) is by the bottom socket of driving key and described motor shaft (2).
4. according to claim 2 or 3 described a kind of pump shaft and motor shaft linkage structures for residual heat removal pump, it is characterized in that: the end face of the end face of described pump shaft end coupling (31) and described pump shaft (1) is fixing by the first screw (35), and underrun second screw (36) of the bottom surface of described motor shaft end coupling (33) and motor shaft (2) is fixing.
5. it is characterized in that: be socketed radial bearing (4) on the excircle of described pump shaft end coupling (31) according to claim 2 or 3 described a kind of pump shaft and motor shaft linkage structures for residual heat removal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182324 CN203257722U (en) | 2013-04-12 | 2013-04-12 | Pump shaft and motor shaft connection structure for residual heat removal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182324 CN203257722U (en) | 2013-04-12 | 2013-04-12 | Pump shaft and motor shaft connection structure for residual heat removal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257722U true CN203257722U (en) | 2013-10-30 |
Family
ID=49470291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320182324 Expired - Fee Related CN203257722U (en) | 2013-04-12 | 2013-04-12 | Pump shaft and motor shaft connection structure for residual heat removal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195736A (en) * | 2013-04-12 | 2013-07-10 | 上海阿波罗机械股份有限公司 | Pump shaft and motor shaft connection structure for residual heat removal pump |
| CN103671217A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Coupling structure of centrifugal pump |
-
2013
- 2013-04-12 CN CN 201320182324 patent/CN203257722U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195736A (en) * | 2013-04-12 | 2013-07-10 | 上海阿波罗机械股份有限公司 | Pump shaft and motor shaft connection structure for residual heat removal pump |
| CN103195736B (en) * | 2013-04-12 | 2015-09-16 | 上海阿波罗机械股份有限公司 | A kind of pump shaft for residual heat removal pump and motor shaft linkage structure |
| CN103671217A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Coupling structure of centrifugal pump |
| CN103671217B (en) * | 2013-12-09 | 2016-04-13 | 无锡艾比德泵业有限公司 | The coupler structure of centrifugal pump |
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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: 20131030 Termination date: 20180412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |