CN206017568U - High-specific gravity tungsten alloy flywheel - Google Patents
High-specific gravity tungsten alloy flywheel Download PDFInfo
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- CN206017568U CN206017568U CN201621032538.1U CN201621032538U CN206017568U CN 206017568 U CN206017568 U CN 206017568U CN 201621032538 U CN201621032538 U CN 201621032538U CN 206017568 U CN206017568 U CN 206017568U
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- specific gravity
- tungsten alloy
- gravity tungsten
- wheel hub
- alloy block
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Abstract
This utility model is related to a kind of high-specific gravity tungsten alloy flywheel, including：Wheel hub, high-specific gravity tungsten alloy block, upper cover plate, lower cover, overcoat；Wherein, the high-specific gravity tungsten alloy block has circular cylinder structure, is sheathed on the lateral surface of the wheel hub；The overcoat is sheathed on the lateral surface of the high-specific gravity tungsten alloy block；The upper cover plate and the lower cover are covered on the upper and lower end face of the high-specific gravity tungsten alloy block respectively, for sealing the high-specific gravity tungsten alloy block.This utility model fully rationally make use of the high density of high-specific gravity tungsten alloy and the combination of high-strength high-corrosion steel, it is achieved that obtain in the confined space compared with large rotating inertia and acceptable economy, meet the demand that the inertia of canned motor pump is rotated.
Description
Technical field
This utility model is related to a kind of high-specific gravity tungsten alloy flywheel, belongs to the correlation of metal flywheel in nuclear power field canned motor pump
Machinery manufacturing technology field.
Background technology
Important component part of the canned motor pump of power set as nuclear power generating equipment, serve key effect, have a power failure or
During generation accident, play a part of coolant to be provided to reaction unit, prevented thermally-induced accident.Flywheel is shielding
The inertia member of pump, needs to operate a period of time with canned motor pump under big quality assurance non-power state.
Shield pump structure is compact, and motor rotatable parts are all immersed in the coolant of high pressure, due to cooling when rotor rotates
The drag effect of agent, will produce very big frictional dissipation, and in order to reduce this loss as far as possible, rotor is necessary for elongated mechanism, but
It is reduction of the rotator inertia of rotor, it is impossible to meet the requirement of running down, if adopting disc type flywheel structure, its size expire
The requirement of sufficient structure space, thus need to design the high flywheel of a kind of small volume, rotary inertia could meet the design of main pump will
Ask.
High-specific gravity tungsten alloy is that material adds ferronickel and other elementary composition highdensity alloys, tungstenic based on tungsten
Measure as 85%-99%, general proportion is 16.5-18.75g/cm3, more common mainly has：W-Ni-Cu and W-Ni-Fe two are big
Series.Which can realize little space, the requirement of big mass inertia, so main part typically adopts high-specific gravity tungsten alloy material.
Utility model content
Not enough for prior art, the purpose of this utility model is to provide a kind of high-specific gravity tungsten alloy flywheel, the flywheel
Compact conformation makes which obtain enough rotary inertias in the confined space, and can meet canned motor pump large rotating inertia and small size will
Ask.
For achieving the above object, this utility model is employed the following technical solutions：
A kind of high-specific gravity tungsten alloy flywheel, the flywheel include：Wheel hub, high-specific gravity tungsten alloy block, upper cover plate, lower cover,
Overcoat；Wherein, the high-specific gravity tungsten alloy block has circular cylinder structure, is sheathed on the lateral surface of the wheel hub；The overcoat
It is sheathed on the lateral surface of the high-specific gravity tungsten alloy block；The upper cover plate and the lower cover are covered on the high-gravity tungsten respectively
The upper and lower end face of alloy block, for sealing the high-specific gravity tungsten alloy block.
Above-mentioned high-specific gravity tungsten alloy flywheel, used as a kind of preferred implementation, the high-specific gravity tungsten alloy block and the wheel
Hub interference fit.
Above-mentioned high-specific gravity tungsten alloy flywheel, used as a kind of preferred implementation, the overcoat and the high-specific gravity tungsten alloy
Block interference fit.
Above-mentioned high-specific gravity tungsten alloy flywheel, as a kind of preferred implementation, the upper end external diameter of the wheel hub with described
The bottom external diameter of wheel hub is different；Preferably, bottom external diameter of the upper end external diameter of the wheel hub less than the wheel hub, described
Internal diameter of the internal diameter of upper cover plate more than the lower cover, the internal diameter of the upper cover plate are equal to the upper end external diameter of the wheel hub, institute
The internal diameter for stating lower cover is equal to the bottom external diameter of the wheel hub.
Above-mentioned high-specific gravity tungsten alloy flywheel, used as a kind of preferred implementation, the external diameter of the upper cover plate, the lower cover
External diameter and the overcoat external diameter equal.
Above-mentioned high-specific gravity tungsten alloy flywheel, used as a kind of preferred implementation, the upper cover plate and lower cover difference
It is connected using welding manner with the overcoat.
Above-mentioned high-specific gravity tungsten alloy flywheel, used as a kind of preferred implementation, the material of the high-specific gravity tungsten alloy block is
Density is in 18.3g/cm3Above high-specific gravity tungsten alloy；The wheel hub, upper cover plate, lower cover, overcoat are high-strength high-corrosion
Property steel.
Compared with prior art, the beneficial effects of the utility model are：
This utility model fully rationally make use of the high density of high-specific gravity tungsten alloy and the combination of high-strength high-corrosion steel,
Achieve, meet the inertia rotation of canned motor pump
Demand.
Description of the drawings
Fig. 1 is the cross-sectional view of the high-specific gravity tungsten alloy flywheel in this utility model preferred embodiment；
Fig. 2 is the top view of the high-specific gravity tungsten alloy flywheel in this utility model preferred embodiment；
Fig. 3 is the upward view of the high-specific gravity tungsten alloy flywheel in this utility model preferred embodiment.
Wherein, 1- wheel hubs, 11- wheel hubs upper end, 12- wheel hubs bottom, 3- high-specific gravity tungsten alloy blocks, 2- upper cover plates, 5-
Lower cover, 4- overcoats.
Specific embodiment
The technical solution of the utility model is described in further detail by example below in conjunction with accompanying drawing.
In description of the present utility model, the orientation of instruction such as term " " on ", D score or position relationship are based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of description this utility model rather than require that this utility model must be with specific
Azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
This utility model provides a kind of high-specific gravity tungsten alloy flywheel, and referring to Fig. 1, the flywheel includes：Wheel hub 1, high specific gravity
Tungsten alloy block 3, upper cover plate 2, lower cover 5, overcoat 4；Wherein, high-specific gravity tungsten alloy block 3 is sheathed on the lateral surface of wheel hub 1, overcoat 4
The lateral surface of high-specific gravity tungsten alloy block 3 is sheathed on, upper cover plate 2 and lower cover 5 are covered on the upper and lower of high-specific gravity tungsten alloy block 3 respectively
End face, for sealing tungsten alloy block.Tight fit is between above-mentioned all parts, and below above part is said one by one
Bright.
Wheel hub 1 is circular cylinder structure, and its center is provided with axis hole, can plug rotating shaft, for driving this practicality in axis hole
New high-specific gravity tungsten alloy flywheel rotation.Preferably, wheel hub 1 is that upper end 11 is step-like circle ring column structure, such as Fig. 1
Shown, the external diameter r of the external diameter r of wheel hub upper end 11 i.e. wheel hub upper ends 11 different from the external diameter R of bottom 12 is different from wheel hub 1
Other positions external diameter, correspondingly, the internal diameter size of upper cover plate 2 and lower cover 5 is also different, in embodiment of the present utility model
In, the external diameter r of wheel hub upper end 11 is less than the external diameter R of wheel hub bottom 12, and the internal diameter of upper cover plate 2 is interior more than lower cover 5
Footpath, so as to ensure heat bushing in form tolerance control, the internal diameter of upper cover plate 2 is equal to the external diameter of wheel hub upper end 11, lower cover 5
Internal diameter be equal to wheel hub bottom 12 external diameter.The height of 11 step of wheel hub upper end is identical with the thickness of upper cover plate 2, upper cover plate
2 inside edge and the step tight fit of wheel hub upper end 11, certainly, this utility model can also arrange axis hole, and adopt end
The mode of face toe joint connects flywheel of the present utility model and rotating shaft.
High-specific gravity tungsten alloy block 3 is circular cylinder structure, is integrally formed, is sheathed on the lateral surface of wheel hub 1；It is preferred that
Ground, interference fit between high-specific gravity tungsten alloy block 3 and wheel hub 1, the i.e. outside of the medial surface of high-specific gravity tungsten alloy block 3 and wheel hub 1
Interference fit between face, its concrete assembling process can be：High-specific gravity tungsten alloy block 3 is heated to uniform temperature (general heating temperature
Degree can be otherwise aoxidized no more than 300 DEG C), it is bushing then to carry out heat with wheel hub 1, makes both combine closely.Tungsten alloy stock material
Preferably density is more than 18.3g/cm3High density tungsten alloy, be overall one piece, it is ensured that produce in certain space sufficiently large used
Property.Integrally formed circular cylinder shape high-specific gravity tungsten alloy block 3 and the circular cylinder shape tungsten block being spliced in this utility model
Compare, more firm, difficult for drop-off.The thickness of high-specific gravity tungsten alloy block 3 is the height that the height of circular cylinder is slightly below wheel hub 1,
After high-specific gravity tungsten alloy block 3 is sheathed on 1 lateral surface of wheel hub, the upper surface of high-specific gravity tungsten alloy block 3 is flushed with the upper surface of wheel hub 1
Horizontal line between vertical dimension for upper cover plate 2 height or thickness, the lower surface of high-specific gravity tungsten alloy block 3 and wheel hub 1
Height or thickness of the vertical dimension between the horizontal line that lower surface flushes for lower cover 5.
Overcoat 4 is also a circular cylinder structure, is sheathed on the lateral surface of high-specific gravity tungsten alloy block 3；Preferably, 4 He of overcoat
3 interference fit of high-specific gravity tungsten alloy block, the i.e. lateral surface of the medial surface of overcoat 4 and high-specific gravity tungsten alloy block 3 adopt interference fit,
Its concrete assembling process can be：Overcoat 4 is heated to after uniform temperature (such as 200 DEG C, 240 DEG C, 300 DEG C etc.), with high ratio
Gravity tungsten alloy block 3 is arranged the conjunction after 1 lateral surface of wheel hub, and to carry out heat again bushing so as to medial surface and high-specific gravity tungsten alloy block 3
Lateral surface combine closely.In embodiment of the present utility model, the height phase of the height of overcoat 4 and high-specific gravity tungsten alloy block 3
With.
Upper cover plate 2, lower cover 5 are respectively arranged at the upper and lower end face of high-specific gravity tungsten alloy block 3, for sealing high-gravity tungsten conjunction
Gold bullion 3；The internal diameter of upper cover plate 2 is matched with the external diameter of wheel hub upper end 11, the bottom external diameter of the internal diameter of lower cover 5 and wheel hub
Match, in embodiment of the present utility model, wheel hub 1 is that upper end 11 is step-like circle ring column structure, on its wheel hub
External diameter of the external diameter of end 11 less than wheel hub bottom 12, correspondingly, the internal diameter of the internal diameter of upper cover plate 2 more than lower cover 5, and on
The internal diameter of cover plate 2 is equal to the external diameter of wheel hub upper end 11, and the internal diameter of lower cover 5 is equal to the external diameter of wheel hub bottom 12.In this reality
With in new embodiment, upper cover plate 2 is identical with the external diameter of lower cover 5, and equal with the external diameter of overcoat 4.The upper surface of overcoat 4
It is attached by welding manner with upper cover plate 2, the lower surface of overcoat 4 is attached by welding manner with lower cover 5.
In preferred embodiment of the present utility model, wheel hub 1, upper cover plate 2, lower cover 5, the material of overcoat 4 are that high intensity is high anti-
Corrosivity steel, such as rustless steel, Q295, Q345 etc..
It is as follows that preferred embodiment of the present utility model provides a kind of assemble method of high-specific gravity tungsten alloy flywheel：First, will
The step of wheel hub upper end 11 is embedded in upper cover plate 2 down, and upper cover plate 2 plays position-limiting action；Then, by high-specific gravity tungsten alloy block
3 are heated to uniform temperature (, no more than 300 DEG C, otherwise high-specific gravity tungsten alloy block can be oxidized for general heating-up temperature), Ran Houhe
Wheel hub 1 carry out heat bushing, i.e., using press by heating after high-specific gravity tungsten alloy block 3 depress, be enclosed within the lateral surface of wheel hub 1,
Both combine closely, and upper cover plate 2 still plays position-limiting action；Afterwards, by overcoat 4 be heated to uniform temperature (such as 200 DEG C, 240
DEG C, 300 DEG C etc.) after, carry out heat again with the conjunction of wheel hub 1 and high-specific gravity tungsten alloy block 3 bushing, i.e., using press by overcoat 4
Pressure, is enclosed within the lateral surface of high-specific gravity tungsten alloy block 3 so as to combined closely with tungsten alloy, and upper cover plate 2 still plays spacing work
With；Afterwards, lower cover 5 is covered on the lower surface of high-specific gravity tungsten alloy block 3 and overcoat 4 and inner side and wheel hub 1 lateral surface
Combine closely；Finally, the upper surface of overcoat 4 is attached by welding manner with upper cover plate 2, the lower surface of overcoat 4 is with
Cover plate 5 is attached by welding manner, completes to assemble.Flywheel Fig. 1 shown in is obtained after the flywheel for obtaining is inverted.
Above example is only a kind of this utility model embodiment therein, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to this utility model the scope of the claims can not be interpreted as.It should be pointed out that the ordinary skill for this area
For personnel, without departing from the concept of the premise utility, some deformations and improvement can also be made, these belong to this
The protection domain of utility model.
Claims (7)
1. a kind of high-specific gravity tungsten alloy flywheel, it is characterised in that the flywheel includes：Wheel hub, high-specific gravity tungsten alloy block, upper lid
Plate, lower cover, overcoat；Wherein, the high-specific gravity tungsten alloy block has circular cylinder structure, is sheathed on the outside of the wheel hub
Face；The overcoat is sheathed on the lateral surface of the high-specific gravity tungsten alloy block；The upper cover plate and the lower cover are covered on respectively
The upper and lower end face of the high-specific gravity tungsten alloy block, for sealing the high-specific gravity tungsten alloy block.
2. high-specific gravity tungsten alloy flywheel according to claim 1, it is characterised in that the high-specific gravity tungsten alloy block and the wheel
Hub interference fit.
3. high-specific gravity tungsten alloy flywheel according to claim 1, it is characterised in that the overcoat and the high-specific gravity tungsten alloy
Block interference fit.
4. high-specific gravity tungsten alloy flywheel according to claim 1, it is characterised in that the upper end external diameter of the wheel hub with described
The bottom external diameter of wheel hub is different.
5. high-specific gravity tungsten alloy flywheel according to claim 4, it is characterised in that the upper end external diameter of the wheel hub is less than institute
The bottom external diameter of wheel hub is stated, the internal diameter of the upper cover plate is more than the internal diameter of the lower cover, and the internal diameter of the upper cover plate is equal to
The upper end external diameter of the wheel hub, the internal diameter of the lower cover are equal to the bottom external diameter of the wheel hub.
6. high-specific gravity tungsten alloy flywheel according to claim 4, it is characterised in that the external diameter of the upper cover plate, the lower cover
The external diameter of the external diameter of plate and the overcoat is equal.
7. high-specific gravity tungsten alloy flywheel according to any one of claim 1-6, it is characterised in that the upper cover plate and described
Lower cover is connected using welding manner with the overcoat respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032538.1U CN206017568U (en) | 2016-08-31 | 2016-08-31 | High-specific gravity tungsten alloy flywheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032538.1U CN206017568U (en) | 2016-08-31 | 2016-08-31 | High-specific gravity tungsten alloy flywheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017568U true CN206017568U (en) | 2017-03-15 |
Family
ID=58258889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621032538.1U Active CN206017568U (en) | 2016-08-31 | 2016-08-31 | High-specific gravity tungsten alloy flywheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017568U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067831A (en) * | 2019-04-02 | 2019-07-30 | 中国北方发动机研究所(天津) | A kind of damping vibration combination flywheel |
| CN110857150A (en) * | 2018-08-22 | 2020-03-03 | 浙江恒成硬质合金有限公司 | Balancing weight for satellite and manufacturing process thereof |
| CN112364459A (en) * | 2020-11-19 | 2021-02-12 | 中国核动力研究设计院 | Method for obtaining optimized parameters of tungsten alloy flywheel sleeved with multiple rings |
-
2016
- 2016-08-31 CN CN201621032538.1U patent/CN206017568U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110857150A (en) * | 2018-08-22 | 2020-03-03 | 浙江恒成硬质合金有限公司 | Balancing weight for satellite and manufacturing process thereof |
| CN110067831A (en) * | 2019-04-02 | 2019-07-30 | 中国北方发动机研究所(天津) | A kind of damping vibration combination flywheel |
| CN112364459A (en) * | 2020-11-19 | 2021-02-12 | 中国核动力研究设计院 | Method for obtaining optimized parameters of tungsten alloy flywheel sleeved with multiple rings |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |