CN206929124U - Magnetic drive pump pump shaft sleeve assembly and magnetic drive pump - Google Patents
Magnetic drive pump pump shaft sleeve assembly and magnetic drive pump Download PDFInfo
- Publication number
- CN206929124U CN206929124U CN201720571046.8U CN201720571046U CN206929124U CN 206929124 U CN206929124 U CN 206929124U CN 201720571046 U CN201720571046 U CN 201720571046U CN 206929124 U CN206929124 U CN 206929124U
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- sleeve
- ring surface
- magnetic drive
- sic material
- pump
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Abstract
The utility model magnetic drive pump pump shaft sleeve assembly and magnetic drive pump, sleeve assembly is made up of SiC material axle sleeve (1) and the metallic elastic set (2) to set within it combination, middle part circular cylindrical projection table top (21c) is formed in the outer ring surface structure of cylindrical metal resilient sleeve (2), Correspondent cy linder shape boss face (21c) opens up fluted (3) on the inner ring surface of cylindrical metal resilient sleeve (2), and the expansion compensation groove (4) for the used logical wall thickness for offering at least three axial direction is uniformly distributed on jacket wall.The planform of cylindrical metal resilient sleeve (2) has elasticity well and rigidity, support to SiC material axle sleeve, cushioning buffer effect can be played well, the coaxial accuracy of axle sleeve and pump shaft is ensured, metal pump shaft and SiC material shaft room SiC material axle sleeve (2) caused by thermal expansion is solved and easily rises broken problem.
Description
Technical field
Magnetic drive pump the utility model relates to magnetic drive pump pump shaft sleeve assembly and using the sleeve assembly, by setting
Put the metallic elastic set in nonmetallic axle sleeve, to non-metallic shaft cover carry out elastic compensating protection, overcome pump shaft with it is nonmetallic
Shaft room nonmetallic boss failure problem caused by thermal expansion.
Background technology
The pump shaft axle sleeve of magnetic drive pump is an important component of magnetic drive pump.Pump shaft axle sleeve is used with pump shaft and is fixedly connected, and
Pairing friction pair is formed with sliding bearing, plays a part of supporting in pump shaft operation process and rotates.
Shape is generally coordinated with the nonmetallic sliding bearing of SiC material and the nonmetallic axle sleeve of SiC material on magnetic drive pump inner pedestal
Rotated against into friction pair, and with 3000r/min rotating speed.SiC material non-metallic shaft is sleeved on metal pump shaft to be driven by key
With pump shaft synchronous rotary.When the nonmetallic axle sleeve of SiC material and metal pump shaft directly coordinate, due to the linear expansion coefficient of SiC material
Only 4.0x10-6With the linear expansion coefficient 17.0x10 of metal shaft-6Differ larger, when pumped medium temperature is more than more than 70 DEG C,
Because linear expansion coefficient is different and the tensile strength of SiC material is smaller, the fragmentation of the nonmetallic axle sleeve of SiC material is easily caused.
Experiment results proved, pump shaft uses gap 0.03mm slide fits with SiC material axle sleeve, because of pump shaft and SiC material axle sleeve
Thermal coefficient of expansion difference is larger, occurs the about 0.0204mm magnitudes of interference both at 150 DEG C, temperature is higher, and the magnitude of interference is bigger, this meeting
Cause the directly broken SiC material axle sleeve of pump shaft.
Had in the prior art in pump shaft using the structural shape of resilient sleeve with shaft room it is varied, if any rubber o-ring
Structure, it is influenceed using limited very big by price and temperature in use.
Prior art also has using metallic elastic chip architecture, various metallic elastic chip architecture designs, technique, the difference of material
The difference of performance, particularly positional precision can be caused（Axiality）It can not ensure.Most of axle sleeves with metallic elastic piece
Due to being limited by structure design, technique and raw material, using effect and adaptive temperature condition ability are all and non-ideal.
Utility model content
The purpose of this utility model is to provide a kind of magnetic drive pump pump shaft sleeve assembly and the magnetic force using the sleeve assembly
Pump, by the metallic elastic set being arranged in nonmetallic axle sleeve, non-metallic shaft is covered and carries out elastic compensating protection, overcome pump shaft with
Non-metallic shaft inner room nonmetallic boss failure problem caused by thermal expansion.And alignment is good, damping, buffering ability is good, durable
Property is good.
The utility model magnetic drive pump pump shaft sleeve assembly, by SiC material axle sleeve 1 and the metallic elastic set to set within it
2 combinations are formed；
End stand 21a, 21b of undergauge is respectively equipped with the left and right ends of the outer ring surface of cylindrical metal resilient sleeve 2, makes cylinder
Shape metallic elastic set 2 forms circular cylindrical projection table top 21c in the middle part of outer ring surface, the circular cylindrical projection table top 21c and the undergauge at its both ends
End stand 21a, 21b is seamlessly transitted with inclined-plane, and the circular cylindrical projection table top 21c and SiC material axle sleeve 1 inner ring surface coordinate；
Corresponded on the inner ring surface of cylindrical metal resilient sleeve 2 circular cylindrical projection table top 21c in the middle part of outer ring surface open up it is fluted
3, the left and right ends of the groove 3 are connected smoothly with inner ring surface left and right ends with inclined-plane 31a, 31b, cylindrical metal resilient sleeve
The wall thickness of 2 middle part cylindrical boss wall 30 is less than cylindrical metal resilient sleeve 2 left and right ends barrel 20a, 20b wall thickness；
Circular cylindrical projection table top 21c in the middle part of outer ring surface is corresponded on the ring wall of cylindrical metal resilient sleeve 2 it is uniformly distributed and opens up
There is the logical wall of at least three axial direction（I.e. used logical wall thickness）Expansion compensation groove 4, rise to improve the contracting of cylindrical metal resilient sleeve 2
Ability and elasticity.
A kind of magnetic drive pump, use above-mentioned pump shaft sleeve assembly.
The utility model solves metal pump shaft with SiC material shaft room in SiC caused by pump internal cause thermal expansion well
Material axle sleeve 2 easily rises broken problem.
When temperature is raised the swell increment of pump shaft by the expansion compensation groove 4 in cylindrical metal resilient sleeve 2 by SiC material axle
Set extruding closure compensates, and is unlikely to SiC material axle sleeve being split up；The opening of expansion compensation groove 4 is replied when the temperature decreases
Magnify, ensure that cylindrical metal resilient sleeve 2 and matching relationship between SiC material axle sleeve and pump shaft are normal.
The utility model, which is tested at 400 DEG C in use, abnormal generation, and SiC material axle sleeve is intact.
The planform of the utility model cylindrical metal resilient sleeve 2 has elasticity well and rigidity, can play well
Support, cushioning buffer effect to SiC material axle sleeve, to caused vibration during pump shaft rotating operation to SiC material axle sleeve
Influence serve well buffering and damping effect.
The utility model improves simultaneously because the planform of cylindrical metal resilient sleeve 2 has elasticity well and rigidity
The bad problem of pump shaft axiality caused by manufacturing deficiency, SiC material axle sleeve and pump shaft rotational stabilization are improved, is rotation system
Even running provides guarantee and supported.
Cylindrical metal resilient sleeve 2 of the present utility model is that overall car system forms, and inner hole is pump shaft locating surface, and cylindrical is axle
Locating surface is covered, under conditions of machining accuracy is ensured, has ensured the coaxial accuracy of SiC material axle sleeve and pump shaft well.
Brief description of the drawings
Fig. 1 is the utility model embodiment structural representation.
Fig. 2 is the structural representation of cylindrical metal resilient sleeve 2.
Fig. 3 is Fig. 2 A-A sectional views.
Fig. 4 is the structural perspective of cylindrical metal resilient sleeve 2.
Fig. 5 is the utility model use state diagram.
Embodiment
The utility model magnetic drive pump pump shaft sleeve assembly, by SiC material axle sleeve 1 and the metallic elastic set to set within it
2 combinations are formed；
End stand 21a, 21b of undergauge is respectively equipped with the left and right ends of the outer ring surface of cylindrical metal resilient sleeve 2, makes cylinder
Shape metallic elastic set 2 forms circular cylindrical projection table top 21c in the middle part of outer ring surface, the circular cylindrical projection table top 21c and the undergauge at its both ends
End stand 21a, 21b is seamlessly transitted with inclined-plane, and the circular cylindrical projection table top 21c and SiC material the axle sleeve 1 a small amount of interference of inner ring surface are matched somebody with somebody
Close；
The width that circular cylindrical projection table top 21c in the middle part of outer ring surface is corresponded on the inner ring surface of cylindrical metal resilient sleeve 2 opens up
Fluted 3, the left and right ends of the groove 3 are connected smoothly with inner ring surface left and right ends with inclined-plane 31a, 31b, make cylindrical shape golden
The section for belonging to the wall of resilient sleeve 2 is in middle part evagination arch, and the wall thickness of the middle part cylindrical boss wall 30 of cylindrical metal resilient sleeve 2 is small
In cylindrical metal resilient sleeve 2 left and right ends barrel 20a, 20b wall thickness；
Circular cylindrical projection table top 21c in the middle part of outer ring surface is corresponded on the ring wall of cylindrical metal resilient sleeve 2 it is uniformly distributed and opens up
There is the expansion compensation groove 4 of the penetrating jacket wall of 3 axial directions, rise ability and elasticity to improve the contracting of cylindrical metal resilient sleeve 2.
Left and right ends internal ring wall 22a, 22b and pump shaft of cylindrical metal resilient sleeve 2 coordinate.
The utility model using when pass through the positioning that is correspondingly opened up in cylindrical metal resilient sleeve 2 and SiC material axle sleeve 1
Groove 5 coordinates with the positioning pin key set on pump shaft, drives and is together rotated with pump shaft.
A kind of magnetic drive pump, use above-mentioned pump shaft sleeve assembly.
Claims (2)
1. magnetic drive pump pump shaft sleeve assembly, it is characterized in that：
It is made up of SiC material axle sleeve (1) and the metallic elastic set (2) to set within it combination；
The end stand (21a, 21b) of undergauge is respectively equipped with the left and right ends of the outer ring surface of cylindrical metal resilient sleeve (2), makes cylinder
Shape metallic elastic set (2) forms circular cylindrical projection table top (21c) in the middle part of outer ring surface, the circular cylindrical projection table top (21c) and its both ends
The end stand (21a, 21b) of undergauge is seamlessly transitted with inclined-plane, the inner ring surface of the circular cylindrical projection table top (21c) and SiC material axle sleeve (1)
Coordinate；
Corresponded on the inner ring surface of cylindrical metal resilient sleeve (2) circular cylindrical projection table top (21c) in the middle part of outer ring surface open up it is fluted
(3), the left and right ends of the groove (3) are connected smoothly with inner ring surface left and right ends with inclined-plane (31a, 31b), cylindrical metal
The wall thickness of the middle part cylindrical boss wall (30) of resilient sleeve (2) be less than cylindrical metal resilient sleeve (2) left and right ends barrel (20a,
Wall thickness 20b)；
Circular cylindrical projection table top (21c) in the middle part of outer ring surface is corresponded on the ring wall of cylindrical metal resilient sleeve (2) it is uniformly distributed and opens up
There is the expansion compensation groove (4) of the used logical wall thickness of at least three axial direction.
2. magnetic drive pump, use sleeve assembly as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720571046.8U CN206929124U (en) | 2017-05-22 | 2017-05-22 | Magnetic drive pump pump shaft sleeve assembly and magnetic drive pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720571046.8U CN206929124U (en) | 2017-05-22 | 2017-05-22 | Magnetic drive pump pump shaft sleeve assembly and magnetic drive pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929124U true CN206929124U (en) | 2018-01-26 |
Family
ID=61351708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720571046.8U Active CN206929124U (en) | 2017-05-22 | 2017-05-22 | Magnetic drive pump pump shaft sleeve assembly and magnetic drive pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989047A (en) * | 2017-05-22 | 2017-07-28 | 丹东通博泵业有限公司 | Magnetic drive pump pump shaft sleeve assembly and magnetic drive pump |
-
2017
- 2017-05-22 CN CN201720571046.8U patent/CN206929124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989047A (en) * | 2017-05-22 | 2017-07-28 | 丹东通博泵业有限公司 | Magnetic drive pump pump shaft sleeve assembly and magnetic drive pump |
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| GR01 | Patent grant |