CN207364113U - Canned motor pump motor rotor axle journal tube-in-tube structure - Google Patents
Canned motor pump motor rotor axle journal tube-in-tube structure Download PDFInfo
- Publication number
- CN207364113U CN207364113U CN201720988272.6U CN201720988272U CN207364113U CN 207364113 U CN207364113 U CN 207364113U CN 201720988272 U CN201720988272 U CN 201720988272U CN 207364113 U CN207364113 U CN 207364113U
- Authority
- CN
- China
- Prior art keywords
- rotor
- sleeve
- tube
- journal sleeve
- journal
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
It the utility model is related to a kind of canned motor pump motor rotor axle journal tube-in-tube structure, the base material (4) of rotor journal sleeve (2) is different from the material of machine shaft (1), one floor height hard metal powder (5) of high temperature and pressure mode built-up welding is used on the base material (4) of rotor journal sleeve (2), take the mode of hot jacket to be equipped between rotor journal sleeve (2) and machine shaft (1), coordinate between journal bearing (3) and rotor journal sleeve (2) for pivoting friction.The utility model solve the problems, such as it is non-maintaining with bearing fit shaft part wear-resisting 60 in shield electric machine, for high power shielding pump motor exploitation provide condition.Originally it is practical that the material of rotor journal sleeve and top layer hard alloy, effect, structure and built-up welding mode are described in detail, solve canned motor pump machine shaft section and wear-resisting 60 years non-maintaining technical barriers at bearing fit.The utility model is simple in structure, easy for installation, and rotor journal sleeve will not be negatively affected motor performance, is conducive to the lifting of the efficiency of motor and the optimization design of electric machine structure.
Description
Technical field
It the utility model is related to a kind of canned motor pump motor rotor axle journal tube-in-tube structure.
Background technology
Shielded motor rotor and impeller of pump share an axis, be placed in high temperature, high pressure reactor coolant in.Shielding
There is one layer of very thin housing to pump the fluid isolation transported outside pump motor rotor core and inside stator core, to protect
Motor stator, rotor core are protected not by fluid etch.Shielding mantle cavity is communicated with pump chamber, subjects the system pressure of fluid.Shielding
Motor rotor axle journal sleeve is operated in the primary cooling water environment of high temperature and pressure, and the radiation of neutron is subject in operation and is come from
The alternate load of journal bearing.Therefore in order to improve the abrasion hardness of rotor journal sleeve, and ensure non-maintaining to make for its 60 years
With requiring, on the base material of rotor journal sleeve by the way of high temperature and pressure one floor height hard metal powder of built-up welding, make its hard
Degree reaches more than 37RC, to meet the requirement of its wearability and service life.
At present, the pattern that shielded motor is directly coordinated using shaft with bearing mostly, with advances in technology, in recent years
Some shielded motors take the mode of chromium plating on the shaft part of shaft and bearing fit, bearing is matched somebody with somebody with chromium plating shaft part
Close.And the field of employment of traditional shielded motor and operating condition and shielding pump motor differ widely, and canned motor pump is electronic
Machine is the core component of reactor coolant pump, operate in high temperature, high pressure reactor coolant in.Canned motor pump motor designs
It is required that 60 years non-maintaining requirements, in order to solve the technical barrier of the frictional dissipation between bearing and shaft, it is desirable to axis
The shaft part for holding tile fragment cooperation has high hardness, will not cause the maintenance of motor because of abrasion to ensure it in projected life.
The abrasion hardness of the materials such as common rotating shaft material such as 20SiMn, 403SST does not reach design requirement and non-maintaining use in 60 years
Demand.The design of rotor journal tube-in-tube structure, using the hard alloy of journalling sleeve appearance surface build-up welding, improves journalling sleeve appearance
The hardness and abrasion resistance in face, ensure that its 60 years non-maintaining design requirements are achieved.
The content of the invention：
The purpose of this utility model is to provide a kind of canned motor pump motor rotor axle journal tube-in-tube structure, the journalling sleeve structure
Not only it can guarantee that combining closely for journalling sleeve and shaft, but also the case hardness of rotor journal sleeve can be improved, while rotor journal
Sleeve is avoided that in motor operation, since pivoting friction uses the longevity to bearing and journalling sleeve between bearing and rotor journal sleeve
The influence of life.The technical solution of the utility model is：A kind of canned motor pump motor rotor axle journal tube-in-tube structure, rotor journal sleeve
2 base material 4 is different from the material of machine shaft 1, one floor height hard metal powder 5 of built-up welding on the base material 4 of rotor journal sleeve 2,
The mode of hot jacket is taken to be equipped between rotor journal sleeve 2 and machine shaft 1, between journal bearing 3 and rotor journal sleeve 2
Coordinate for pivoting friction.
Described 5 its hardness of a floor height hard metal powder reaches more than 37RC.
The utility model designs and manufactures a kind of canned motor pump motor rotor axle journal tube-in-tube structure, is designed according to shield electric machine
Good shaft section size and its frictional fit condition between bearing, its structure is as shown in Figure 2.Rotor journal sleeve design is
One layer of cemented carbide structure of technique for overlaying built-up welding of high temperature and pressure is utilized in its outer surface, and by the tight amount between hot jacket and is turned
Axis is combined together, to ensure the fixation in the position of motor rotation central axis neck sleeve, as shown in Figure 1.
The advantages of this is practical：Rotor journal bush material selects the material different from shaft, in order to reduce rotor core
Influence of the saturation potential to machine-magnetization electric current, shaft uses 403 magnetic stainless steel materials, and the selection of the material can make shaft
Extra magnetic flux path is provided.Compared to non magnetic austenitic stainless steel, 403SST shaft materials have higher elasticity modulus
And intensity.High elasticity modulus is conducive to improve the rigidity of axis, and high intensity is conducive to improve the fatigue resistance of axis.Armature spindle
The material selection of neck sleeve is different from shaft, and rotor journal sleeve selects 600 material of alloy of high intensity, equally meets to magnetic flux
The requirement of path, rigidity and fatigue resistance is measured, one layer of the bead-welding technology built-up welding of high temperature and pressure is used in journalling sleeve outer surface
Hard alloy, the abrasion hardness of the raising of the energy high degree shaft part.The journalling sleeve is simple in structure, is tightly measured by hot jacket with turning
Axis is combined together, and is locked on axis to ensure that pump keeps mechanical integrity to greatest extent at work.
Brief description of the drawings
Fig. 1 journalling sleeves and bearing fit schematic diagram
Fig. 2 journalling sleeve structure diagrams
Embodiment
A kind of canned motor pump motor rotor axle journal tube-in-tube structure as shown in Figure 1, base material 4 and the electricity of rotor journal sleeve 2
The material of machine shaft 1 is different, as shown in Fig. 2, one floor height hard metal powder 5 of built-up welding on the base material 4 of rotor journal sleeve 2, turns
Take the mode of hot jacket to be equipped between sub- journalling sleeve 2 and machine shaft 1, be to turn between journal bearing 3 and rotor journal sleeve 2
Dynamic friction coordinates.
Shielded motor design requirement non-maintaining, this hardness to rotor journal sleeve surface and the requirement of wear-resisting situation in 60 years
Compare harsh.A kind of above-mentioned canned motor pump motor rotor axle journal tube-in-tube structure, uses on the base material 4 of rotor journal sleeve 2
The one floor height hard metal powder 5 of mode built-up welding of high temperature and pressure, 5 hardness of a floor height hard metal powder reach Rockwell standard testing
More than 37RC, to meet the requirement of its wearability and service life.
Rotor journal sleeve is installed on the shaft part of shaft and bearing fit, when rotor journal sleeve design, is
Meet the requirement of its surface abrasion resistance hardness, it is necessary first to which the hard alloy metal powder in overlay cladding just selected.At this
In utility model patent, Co-based alloy powder is have selected, the selection of the hard alloy powder filler, has considered canned motor pump electricity
Motivation bearing have also contemplated that the characteristic that axle journal base material is nickel-chromium-ferro alloy to the demand of journalling sleeve abrasion hardness.Turn
Sub- journalling sleeve appearance surface build-up welding department too vertical 12 (STELLITE 12) metal dust when, the base material of journalling sleeve is carried out first
Processing, after journalling sleeve base material processing dimension is met the requirements, the built-up welding of high temperature, high pressure is carried out in its outer round surface.
According to the requirement of Fig. 1 journalling sleeve sizes designed and design specification, high temperature, the technique side of high pressure built-up welding are utilized
Method, have selected the cemented carbide material for meeting design specification and requirement, complete built-up welding, processing and performance test；By right
The cemented carbide powder of different process and groping for built-up welding temperature, determine journalling sleeve built-up welding temperature, and complete trial production.
Rotor journal sleeve after pile-up welding hard alloy powder, is combined together, not only by way of hot jacket with shaft
It ensure that pump keeps mechanical integrity to greatest extent at work, also improve the hardness on journalling sleeve surface, improve axis
Wearability between neck sleeve and bearing, farthest solves 60 years non-maintaining technical barriers of motor.
Claims (2)
1. a kind of canned motor pump motor rotor axle journal tube-in-tube structure, it is characterized in that：The base material (4) of rotor journal sleeve (2) and electricity
The material of machine shaft (1) is different, one floor height hard metal powder (5) of built-up welding on the base material (4) of rotor journal sleeve (2), rotor
Take the mode of hot jacket to be equipped between journalling sleeve (2) and machine shaft (1), journal bearing (3) and rotor journal sleeve (2) it
Between for pivoting friction coordinate.
2. a kind of canned motor pump motor rotor axle journal tube-in-tube structure according to claim 1, it is characterized in that：Described one layer
High rigidity metal dust (5) hardness reaches more than Rockwell standard testing 37RC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988272.6U CN207364113U (en) | 2017-08-09 | 2017-08-09 | Canned motor pump motor rotor axle journal tube-in-tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988272.6U CN207364113U (en) | 2017-08-09 | 2017-08-09 | Canned motor pump motor rotor axle journal tube-in-tube structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207364113U true CN207364113U (en) | 2018-05-15 |
Family
ID=62421912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720988272.6U Active CN207364113U (en) | 2017-08-09 | 2017-08-09 | Canned motor pump motor rotor axle journal tube-in-tube structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207364113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327501A (en) * | 2017-08-09 | 2017-11-07 | 哈尔滨电气动力装备有限公司 | Canned motor pump motor rotor axle journal tube-in-tube structure |
-
2017
- 2017-08-09 CN CN201720988272.6U patent/CN207364113U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327501A (en) * | 2017-08-09 | 2017-11-07 | 哈尔滨电气动力装备有限公司 | Canned motor pump motor rotor axle journal tube-in-tube structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109274220A (en) | A kind of high efficiency and heat radiation motor | |
| CN207364113U (en) | Canned motor pump motor rotor axle journal tube-in-tube structure | |
| CN104380580B (en) | Motor, positioning device, conveying device | |
| CN206302315U (en) | A kind of aluminium busbar rotor structure | |
| CN107327501A (en) | Canned motor pump motor rotor axle journal tube-in-tube structure | |
| JP2016509654A (en) | Magnetic bearing and rotating machine with such a bearing | |
| CN203926107U (en) | Reactor coolant pump water lubrication radial guiding bearing | |
| CN207200403U (en) | A kind of fixed structure of motor stator core | |
| CN206770631U (en) | A kind of valve sealing face for being applied to more than 600 DEG C steam mediums | |
| KR101235481B1 (en) | Rotor having a superconducting rotor winding and an integral sleeve surrounding the rotor winding | |
| CN102904385A (en) | Amorphous stator water-cooling permanent magnet disc type motor | |
| CN204046311U (en) | The rotary seal mechanism of electric motor end cap and rotating shaft | |
| CN206834862U (en) | Canned motor pump motor rotor retaining ring structure | |
| CN207426871U (en) | The radial direction magnetic bearing holder structure of thermal expansion deformation is compensated in magnetic suspension motor | |
| CN209088651U (en) | Canned motor pump motor rotor mouse cage winding structure | |
| CN207676764U (en) | A kind of control rod drive mechanism electromagnetic coil assembly | |
| CN106224154A (en) | The hydraulic turbine wear-resisting cast-weld construction stator and preparation method thereof | |
| CN205583906U (en) | Air compressor machine is with directly driving PMSM | |
| CN206673729U (en) | A kind of hybrid ventilation type engine base of generator | |
| CN111828336A (en) | Ultra-silent zero-leakage nuclear main pump/fan compressor integrated design scheme | |
| CN205977515U (en) | Wear -resisting cast -weld construction stator of hydraulic turbine | |
| CN105846629B (en) | A kind of vacuum cleaning motor of radial magnetizing | |
| CN217010559U (en) | Three-phase asynchronous motor with electromagnetic interference resistance | |
| CN201478921U (en) | Flywheel improving structure for high output power AC (alternating current) generator | |
| CN219779880U (en) | Rotor ring key safety ring structure of asynchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |