CN205937211U - Avionics cooling is rotor system for pump - Google Patents
Avionics cooling is rotor system for pump Download PDFInfo
- Publication number
- CN205937211U CN205937211U CN201620910382.6U CN201620910382U CN205937211U CN 205937211 U CN205937211 U CN 205937211U CN 201620910382 U CN201620910382 U CN 201620910382U CN 205937211 U CN205937211 U CN 205937211U
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- China
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- pump
- pump shaft
- impeller
- support
- rotor
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Abstract
The utility model relates to a nuclear power reactor and return circuit avionics cooling pump for the auxiliary system, specifically speaking are avionics cooling is rotor system for pump. Including impeller, pump shaft and pump cupling, the wherein one end and the impeller connection of pump shaft, the other end passes through pump cupling to be connected with the motor, the pump shaft is hollow structure and be equipped with the composite damping material in its cavity. The utility model has the characteristics of the high resistance to shock of composite damping structure, do not changing under this equipment performance index prerequisite, can absorb the mechanical oscillation that rotational system produced well.
Description
Technical field
This utility model is related to nuclear-power reactor and primary Ioops aid system equipment cooling pump, and specifically one kind sets
Standby cooling pump rotor-support-foundation system.
Background technology
Equipment cooling pump is one of key equipment of naval vessel primary Ioops aid system, its function normal reactor operation,
Conveying equipment cooling water under shutdown and various accident conditions, cooling primary Ioops system needs the equipment of cooling.In Ship System
Belong to normally opened equipment, this type equipment is also one of main vibration source in naval vessel simultaneously.With the requirement to Stealth Fighter for the naval vessel, need
Vibration and noise reducing research is carried out to this type pump.At present, the rotor-support-foundation system that China's equipment cools down in pump configuration is still continuing to use last century
The structural design scheme in 70-90 age, for improving the vibration suppression technology of equipment cooling pump, adapts to contemporary ship stealth performance
Demand, needs to research and develop a kind of rotor-support-foundation system of the high vibration resistance of compound damping structure.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of equipment cooling pump rotor-support-foundation system.This rotor
System can suppress to vibrate, and meet the increasingly harsh stealth in contemporary naval vessel and require.
To achieve these goals, this utility model employs the following technical solutions：
A kind of equipment cooling pump rotor-support-foundation system, including impeller, pump shaft and pump shaft coupling, wherein one end of pump shaft and impeller
Connect, the other end passes through pump shaft coupling and motor connection, described pump shaft is to be provided with composite damping in hollow structure and its cavity
Material.
Described composite damping material is isobutylene copolymers.
Described impeller is connected with pump shaft by impeller key and by impeller nut and floor clip locking.
Described pump shaft coupling is elastic dowel pin shaft coupling.
Described elastic dowel pin shaft coupling is connected with pump shaft by coupling key.
The two ends of described elastic dowel pin shaft coupling are respectively equipped with pump shaft connecting hole and motor shaft connecting hole, described electricity vertically
The diameter with diameter greater than pump shaft connecting hole of arbor connecting hole.
Advantage of the present utility model and good effect are：
1. this utility model is applied to naval vessel primary Ioops auxiliary system equipment cooling pump and uses, and this utility model can also be used
The rotor-support-foundation system of the main and auxiliary solidifying pump in naval vessel secondary coolant circuit system.
2. this utility model has the characteristics that the high resistance to shock of compound damping structure, is not changing this equipment performance index
Under the premise of, the mechanical vibration of rotation system generation can be absorbed well.
Brief description
Fig. 1 is structural representation of the present utility model；
Wherein：1 is impeller, and 2 is pump shaft, and 3 is impeller nut, and 4 is floor clip, and 5 is little round nut, and 6 is impeller key, 7
For coupling key, 8 is pump shaft coupling.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with the accompanying drawings and be embodied as
Example is described in detail to this utility model.
Fig. 1 is structural representation of the present utility model；As shown in figure 1, a kind of equipment cooling pump that this utility model provides
With rotor-support-foundation system, including impeller 1, pump shaft 2 and pump shaft coupling 8, wherein one end of pump shaft 2 is connected with impeller 1, and the other end passes through pump
Shaft coupling 8 and motor connection, described pump shaft 2 is to be provided with composite damping material 9 in hollow structure and its cavity.Fill multiple
After closing damping material 9, first by shafting end cap method for laser welding and coupling of shaft system；Then carry out preliminary weld grinding to throw
Optical processing；Finally the impeller of coupling is arranged on shafting enterprising action balance technique.
Described composite damping material carries out specific aim suppression to the leaf frequency vibration of this equipment cooling pump.Described composite damping material
Material 9 is isobutylene copolymers, its feature：Rheological characteristic is good, wide damping temperature domain, and high-damping and damping capacity are stable, and ageing resistance is good.
Further, described impeller 1 is connected with pump shaft 2 by impeller key 6 and passes through impeller nut 3 and floor clip 4
Locking.
Described pump shaft coupling 8 is elastic dowel pin shaft coupling, and described elastic dowel pin shaft coupling passes through coupling key 7 and pump shaft 2
Connect.The two ends of described elastic dowel pin shaft coupling are respectively equipped with pump shaft connecting hole and motor shaft connecting hole, described motor vertically
The diameter with diameter greater than pump shaft connecting hole of axle connecting hole.
Equipment cooling pump population structure is vertical hanging formula, single-stage, single-suction centrifugal pump, and upper, pump suction side exists motor
Under, medium axially sucks, radially discharges.Pump shaft 2 is connected by increasing the elastic dowel pin shaft coupling connection of overall diameter with motor shaft
Connect, to alleviate because of pump shaft 2 and the impact to unit operation for the rotor alignment deviation, and increase rotor moment of inertia to suppress to shake
Dynamic.
Rotor-support-foundation system is the critical function part of equipment cooling pump, provides circulation power for medium, is also main vibration source.Leaf
Through dynamic balancing measurement correction after wheel 1 and pump shaft 2 installation, reduce the impact of rotor-support-foundation system fundamental frequency, pump shaft 2 and motor simultaneously
Axle is connected by elastic dowel pin shaft coupling, can reduce the impact of rotor-support-foundation system two frequency multiplication.Pump shaft 2 is not only the core of rotor-support-foundation system
The heart, is also one of key position of vibration and noise reducing, inserts composite damping material 9 in the cavity of pump shaft 2, make rotor-support-foundation system itself
There is suppression effect of vibration.
Pump shaft 2 structure design of the present utility model adopts cavity to design, and can improve torsional rigidity.Cold according to conventional equipment
But pump vibration test data analysis, find main impact vibration index is leaf frequency, adds specific resistance in the cavity of pump shaft 2
Damping material, can play for the vibration suppression effect in this frequency range.
Operation principle of the present utility model is：In rotor-support-foundation system, the Leaf positional distribution of impeller 1 is uneven, meeting in rotary course
Produce the vibration in leaf frequency domain, design the composite damping in cavity of cavity size and Selective filling of pump shaft 2 for this frequency range
Material, comes pointedly to absorb leaf frequency vibration in this way.
Vibration-testing is carried out to the equipment cooling pump equipped with this novel rotor system, result shows that novel rotor is real well
Show the effect of suppression vibration.
The foregoing is only embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All
Any modification, equivalent substitution and improvement made within spirit of the present utility model and principle, extension etc., are all contained in this reality
With in new protection domain.
Claims (6)
1. a kind of equipment cooling pump rotor-support-foundation system is it is characterised in that include impeller (1), pump shaft (2) and pump shaft coupling (8), its
One end of middle pump shaft (2) is connected with impeller (1), and the other end passes through pump shaft coupling (8) and motor connection, during described pump shaft (2) is
It is provided with composite damping material (9) in hollow structure and its cavity.
2. equipment cooling pump rotor-support-foundation system according to claim 1 is it is characterised in that described composite damping material (9)
For isobutylene copolymers.
3. equipment cooling pump rotor-support-foundation system according to claim 1 is it is characterised in that described impeller (1) passes through impeller
Key (6) is connected with pump shaft (2) and by impeller nut (3) and floor clip (4) locking.
4. equipment cooling pump rotor-support-foundation system according to claim 1 is it is characterised in that described pump shaft coupling (8) is bullet
Property pin coupler.
5. equipment cooling pump rotor-support-foundation system according to claim 4 is it is characterised in that described elastic dowel pin shaft coupling leads to
Cross coupling key (7) to be connected with pump shaft (2).
6. equipment cooling pump rotor-support-foundation system according to claim 4 is it is characterised in that described elastic dowel pin shaft coupling
Two ends are respectively equipped with pump shaft connecting hole and motor shaft connecting hole vertically, the connecting with diameter greater than pump shaft of described motor shaft connecting hole
The diameter in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910382.6U CN205937211U (en) | 2016-08-22 | 2016-08-22 | Avionics cooling is rotor system for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910382.6U CN205937211U (en) | 2016-08-22 | 2016-08-22 | Avionics cooling is rotor system for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937211U true CN205937211U (en) | 2017-02-08 |
Family
ID=57948181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620910382.6U Active CN205937211U (en) | 2016-08-22 | 2016-08-22 | Avionics cooling is rotor system for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828372A (en) * | 2020-06-23 | 2020-10-27 | 北京航天动力研究所 | Flexible rotor of ultrahigh-rotating-speed liquid hydrogen turbopump |
-
2016
- 2016-08-22 CN CN201620910382.6U patent/CN205937211U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828372A (en) * | 2020-06-23 | 2020-10-27 | 北京航天动力研究所 | Flexible rotor of ultrahigh-rotating-speed liquid hydrogen turbopump |
| CN111828372B (en) * | 2020-06-23 | 2021-07-09 | 北京航天动力研究所 | Flexible rotor of ultrahigh-rotating-speed liquid hydrogen turbopump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |