CN220457190U - Rotor support, rotor assembly and centrifugal water pump - Google Patents
Rotor support, rotor assembly and centrifugal water pump Download PDFInfo
- Publication number
- CN220457190U CN220457190U CN202320145692.3U CN202320145692U CN220457190U CN 220457190 U CN220457190 U CN 220457190U CN 202320145692 U CN202320145692 U CN 202320145692U CN 220457190 U CN220457190 U CN 220457190U
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- rotor
- bracket body
- pump
- rotor assembly
- shaft core
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract 3
- 238000003466 welding Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 12
- 239000007787 solid Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a rotor bracket, a rotor assembly and a centrifugal water pump, and relates to the technical field of water pumps and parts thereof, comprising a bracket body, wherein the bracket body is provided with inner holes penetrating through two end surfaces of the bracket body along the axial direction of the bracket body, and the inner holes are used for bearing installation; the inner wall of the inner hole of the bracket body is provided with a diversion trench, and two ends of the diversion trench are respectively communicated to two end surfaces of the bracket body. The utility model mainly solves the problem that fine impurities are easily accumulated in the rotor assembly and in the gaps between the shaft core and the bearing of the rotor assembly; the flow channel is formed between the diversion trench in the inner hole of the rotor bracket and the bearing, so that water flow can be allowed to pass through the diversion trench, solid impurities are easily carried out by the water flow, scale is not easy to form inside the rotor assembly, and the bearing and the shaft core are not easy to form, so that the centrifugal water pump of the embodiment can be effectively prevented from being blocked.
Description
Technical Field
The utility model relates to the technical field of water pumps and parts thereof, in particular to a rotor bracket, a rotor assembly and a centrifugal water pump.
Background
The centrifugal water pump can drive liquid to flow, so that the liquid can flow from one place to another place in a directional manner, and the centrifugal water pump is a mechanical device with wide application.
The centrifugal water pump generally comprises a stator assembly and a rotor assembly, wherein when current is introduced into the stator assembly, the stator assembly can generate a rotating magnetic field, the rotor assembly is driven by the coupling of the rotating magnetic field to rotate relative to the stator assembly by taking a shaft core as a rotating shaft, and an impeller on the rotor assembly can drive liquid to flow during rotation, so that the operation process of the centrifugal water pump is completed.
In the prior art, fine impurities are easily accumulated in gaps between the inside of the rotor assembly and the bearings of the shaft core and the rotor assembly, if the impurities are not removed in time, scale which is difficult to remove can be reduced, and when the amount of the scale reaches a certain degree, the rotor assembly is blocked and cannot rotate.
Disclosure of Invention
One of the objects of the present utility model is to provide a rotor holder which, when applied to a water pump, is capable of avoiding accumulation of impurities in the gap between itself and the shaft core.
Another object of the present utility model is to provide a rotor assembly that is able to avoid accumulation of impurities in the gap between its own bearing and the shaft core, thus avoiding seizing.
It is still another object of the present utility model to provide a centrifugal water pump capable of preventing a rotor assembly from being stuck due to accumulation of foreign substances.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the rotor bracket comprises a bracket body, wherein the bracket body is provided with inner holes penetrating through two end surfaces of the bracket body along the axial direction of the bracket body, and the inner holes are used for a bearing to be installed in; the inner wall of the inner hole of the bracket body is provided with a diversion trench, and two ends of the diversion trench are respectively communicated to two end surfaces of the bracket body.
In the above technical scheme, the diversion trench is linear, curved or spiral extension shape.
In the above technical scheme, the guide groove is provided with a plurality of guide grooves by taking the axle center of the bracket body as the symmetrical center.
A rotor assembly comprising the rotor support described above; the device also comprises a bearing, a magnetic ring and an impeller; the bearing is arranged in the inner hole of the bracket body in a penetrating way and is coaxially arranged with the bracket body, and the magnetic ring is sleeved on the bracket body and is coaxially arranged with the bracket body; one end of the bracket body extends along the radial direction to form an impeller mounting part, and the impeller is fixed on the impeller mounting part.
In the technical scheme, the outer wall of the bracket body is concaved inwards along the radial direction to form the magnetic ring mounting groove, and the magnetic ring is sleeved on the magnetic ring mounting groove.
In the above technical scheme, the rotor bracket is integrally formed with the bearing and the magnetic ring in an in-mold injection molding manner.
In the above technical scheme, the impeller is fixed on the impeller mounting portion of the rotor bracket in one of ultrasonic welding, interference fit, screw locking and fastening.
A centrifugal water pump comprising the rotor assembly described above; the pump also comprises a pump shell, a pump cover, a shaft core and a stator assembly; a rotor chamber is formed in the pump shell, and a first shaft core seat is formed at the bottom of the rotor chamber; a second axial core seat is formed in the pump cover, the pump cover and the pump shell are combined and fixed with each other, a cavity is formed in the pump cover, the first axial core seat of the pump shell and the second axial core seat of the pump cover are opposite to each other, and a water inlet and a water outlet which are communicated with the cavity are respectively formed in the pump cover; the two ends of the shaft core are respectively inserted and fixed into a first shaft core seat of the pump shell and a second shaft core seat of the pump cover, and a bearing of the rotor assembly is sleeved on the shaft core, so that a magnetic ring of the rotor assembly is supported in the rotor chamber, and an impeller of the rotor assembly is supported in the chamber; the stator assembly is arranged in the pump shell and surrounds the outside of the rotor chamber, so that the stator assembly can magnetically couple and link the rotor assembly to rotate.
In the technical scheme, the end faces of the first shaft core seat of the pump shell and the second shaft core seat of the pump cover are respectively provided with a thrust washer.
Compared with the prior art, the utility model has the beneficial effects that: 1. the rotor support of this embodiment forms the runner when using centrifugal water pump between guiding gutter in its hole and centrifugal water pump's bearing, can allow rivers to pass through from there, and solid impurity is taken out by the rivers easily to make the inside of rotor subassembly, be difficult for forming the incrustation scale between bearing and the axle core, can avoid centrifugal water pump's rotor subassembly card to die effectively.
2. When the rotor assembly of the embodiment is applied to a centrifugal water pump, a flow channel is formed between a diversion trench in an inner hole of a rotor bracket and a bearing of the centrifugal water pump, water flow can be allowed to pass through the diversion trench, and solid impurities are easily carried out by the water flow, so that scale is not easy to form inside the rotor assembly, between the bearing and a shaft core, and the rotor assembly of the embodiment can be effectively prevented from being blocked.
3. The centrifugal water pump of this embodiment forms the runner between guiding gutter and the bearing in its rotor support's the hole, can allow rivers to pass through it, and solid impurity is taken out by the rivers easily to make the inside difficult incrustation scale that forms of rotor subassembly, between bearing and the axle core, can avoid the centrifugal water pump card of this embodiment to die effectively.
Drawings
Fig. 1 is a perspective view of one of the first embodiment of the present utility model.
Fig. 2 is a second perspective view of the first embodiment of the present utility model.
Fig. 3 is a cross-sectional view of a first embodiment of the present utility model.
Fig. 4 is a perspective view of a second embodiment of the present utility model.
Fig. 5 is an exploded view of a second embodiment of the present utility model.
Fig. 6 is a cross-sectional view of a second embodiment of the present utility model.
Fig. 7 is a structural view of a third embodiment of the present utility model.
The reference numerals are: 1. a bracket body; 11. an inner bore; 12. a diversion trench; 13. a magnetic ring mounting groove; 14. an impeller mounting portion; 2. a bearing; 3. a magnetic ring; 4. an impeller; 5. a pump housing; 51. a rotor chamber; 52. a first mandrel base; 53. a rear cover; 6. a shaft core; 7. a stator assembly; 8. a thrust washer; 10. a rotor assembly.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
the present embodiment provides a rotor support that can be used in a rotor assembly of a centrifugal water pump for providing a structural and support basis for the rotor assembly.
Referring to fig. 1 and 2, the rotor bracket of the present embodiment includes a bracket body 1, in which an inner hole 11 penetrating through both end surfaces of the bracket body 1 is formed along an axial direction of the bracket body, the inner hole 11 is used for mounting a bearing therein, and in practice, the inner hole 11 is a cylindrical straight hole; the inner wall of the inner hole 11 of the bracket body 1 is provided with a diversion trench 12, two ends of the diversion trench 12 are respectively communicated with two end surfaces of the bracket body 1, specifically, the diversion trench 12 is a trench body part integrally formed in the inner hole 11 of the bracket body 1.
Specifically, the flow guiding groove 12 is in a linear, curved or spiral extending shape, and in this embodiment, the flow guiding groove 12 is in a linear extending shape.
Further, the diversion trench 12 is provided with a plurality of diversion trenches 12 with the axis of the bracket body 1 as the symmetry center, in this embodiment, three diversion trenches 12 are provided.
The rotor support of this embodiment forms the runner when using in centrifugal water pump between guiding gutter 12 and the bearing of centrifugal water pump in its hole 11, can allow rivers to pass through from there, and solid impurity is taken out by the rivers easily to make the inside of rotor subassembly, be difficult for forming the incrustation scale between bearing and the axle core, can avoid centrifugal water pump's rotor subassembly card to die effectively.
Embodiment two:
the present embodiment provides a rotor assembly that can be applied in a centrifugal water pump that can drive a liquid flow when rotating.
The rotor assembly of the present embodiment includes the rotor support of the first embodiment, and further includes the bearing 2, the magnetic ring 3, and the impeller 4.
The bearing 2 is a cylindrical workpiece made of graphite/ceramic integrally formed, so that the bearing 2 has a self-lubricating function; the magnetic ring 3 is a metal ring body with magnetism and can be magnetically coupled with the stator assembly 7 so as to drive the rotor assembly to rotate; the impeller 4 is an engineering plastic workpiece with a plurality of blades, and the blades can drive water flow.
The bearing 2 is arranged in the inner hole 11 of the bracket body 1 in a penetrating way and is coaxially arranged with the bracket body 1, the magnetic ring 3 is sleeved on the bracket body 1 and is coaxially arranged with the bracket body 1, and in this way, the bearing 2, the magnetic ring 3 and the rotor bracket are all coaxial; one end of the bracket body 1 is extended in a radial direction thereof to form an impeller mounting portion 14, that is, the impeller mounting portion 14 has a larger diameter than the portion of the bracket body 1 of the rotor bracket, thereby forming a platform for fixing the impeller 4, and the impeller 4 is fixed to the impeller mounting portion 14.
Further, the outer wall of the bracket body 1 is concaved inwards along the radial direction to form a magnetic ring mounting groove 13, and the magnetic ring 3 is sleeved on the magnetic ring mounting groove 13, so that the magnetic ring 3 is flush with the outer wall of the bracket body 1.
Specifically, the rotor bracket is molded into a whole with the bearing 2 and the magnetic ring 3 by means of in-mold injection; in fact, a key groove is formed in the outer wall of the bearing 2, and when the rotor bracket is molded, a key is correspondingly formed at the position of the key groove of the bearing 2, so that the rotor bracket and the bearing 2 can be tightly matched; when the rotor bracket is formed, concave holes/convex ribs are correspondingly formed at the positions of the convex ribs/concave holes of the magnetic ring 3, so that the rotor bracket can be tightly matched with the magnetic ring 3.
Specifically, the impeller 4 is fixed on the impeller mounting portion 14 of the rotor support in one of ultrasonic welding, interference fit, screw locking and fastening, and in this embodiment, the impeller 4 is fixed on the impeller mounting portion 14 of the rotor support in an ultrasonic welding manner, so that the impeller 4 and the rotor support are integrated and are not easy to fall off.
When the rotor assembly of the embodiment is applied to a centrifugal water pump, a flow channel is formed between the diversion trench 12 in the inner hole 11 of the rotor bracket and the bearing 2 of the centrifugal water pump, water flow can be allowed to pass through the diversion trench, and solid impurities are easily carried out by the water flow, so that scale is not easy to form inside the rotor assembly, between the bearing 2 and the shaft core 6, and the rotor assembly of the embodiment can be effectively prevented from being blocked.
Embodiment III:
the present embodiment provides a centrifugal water pump comprising the rotor assembly 10 of the second embodiment; it further comprises a pump housing 5, a pump cover (not shown in the figures), a shaft core 6 and a stator assembly 7.
The pump casing 5 is an integrally formed half casing, which may be made of engineering plastic or metal, and the pump casing 5 is used for providing a part of a casing for the water pump, and the pump casing 5 of the embodiment also has a rear cover 53; the pump cover is also an integrally formed half shell, the material of the pump cover is the same as that of the pump shell 5, and the pump cover is used for providing the other part of the shell for the water pump; the shaft core 6 is a cylindrical shaft made of metal, has rigidity and can allow the bearing 2 to be sleeved in; the stator assembly 7 is a coil assembly, and when a current is applied to the stator assembly 7, a rotating magnetic field can be formed in the space inside the stator assembly.
A rotor chamber 51 is formed in the pump housing 5, and a first shaft core seat 52 is formed at the bottom of the rotor chamber 51; in this embodiment, the rotor chamber 51 is formed by sinking an end surface in the pump casing 5, and the first shaft core seat 52 and the pump casing 5 are integrally formed; a second axial core seat (not shown in the figure) is formed in the pump cover, is integrally formed with the pump cover and is supported in the pump cover through a supporting arm; in practice, both the first 52 and second 52 mandrel seats are shape-matched to the mandrel 6, allowing one end of the mandrel 6 to be inserted therein; the pump cover and the pump shell 5 are combined and fixed with each other (specifically, fixed with each other by screws), a cavity (not shown in the figure) is formed in the pump cover, the first shaft core seat 52 of the pump shell 5 and the second shaft core seat of the pump cover are opposite to each other, a water inlet and a water outlet (not shown in the figure) which are communicated with the cavity are respectively formed on the pump cover, specifically, the water inlet is arranged on the end face of the pump shell 5 along the axial direction of the pump shell 5, and the water outlet is arranged on the side face of the pump shell 5 along the radial direction of the pump shell 5; both ends of the shaft core 6 are respectively inserted and fixed into a first shaft core seat 52 of the pump casing 5 and a second shaft core seat of the pump cover, the bearing 2 of the rotor assembly 10 is sleeved on the shaft core 6, the magnetic ring 3 of the rotor assembly 10 is supported in the rotor chamber 51, and the impeller 4 of the rotor assembly 10 is supported in the chamber, at this time, the whole rotor assembly 10 can rotate with the shaft core 6 as a rotation shaft under the support of the bearing 2.
Further, the end faces of the first shaft core seat 52 of the pump shell 5 and the second shaft core seat of the pump cover are respectively provided with a thrust washer 8, the thrust washer 8 is made of wear-resistant metal, and the thrust washer 8 is arranged, so that the bearing 2 can be prevented from directly rubbing with the first shaft core seat 52/the second shaft core seat, and the service lives of the bearing 2, the pump shell 5 and the pump cover can be prolonged.
When the centrifugal water pump of the embodiment is used, the stator assembly 7 is electrified, so that a rotating magnetic field is formed in the space inside the stator assembly 7, the whole rotor assembly 10 is driven to rotate in the rotor chamber 51 and the chamber 61 through the magnetic coupling of the magnetic ring 3, the rotating impeller 4 can drive liquid to flow along the blades of the impeller, so that the liquid is sucked into the chamber after passing through the water inlet, pressure is generated by the liquid under the driving of the impeller 4, and the liquid can directionally flow under the guidance of the pump cover and is discharged from the water outlet.
In the centrifugal water pump of this embodiment, a flow channel is formed between the diversion trench 12 in the inner hole 11 of the rotor bracket and the bearing 2, so that water flow can be allowed to pass through the diversion trench, and solid impurities are easily carried out by the water flow, so that scale is not easily formed inside the rotor assembly 10 and between the bearing 2 and the shaft core 6, and the centrifugal water pump of this embodiment can be effectively prevented from being blocked.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The rotor bracket is characterized by comprising a bracket body, wherein the bracket body is provided with inner holes penetrating through two end surfaces of the bracket body along the axial direction of the bracket body, and the inner holes are used for installing bearings in the inner holes;
the inner wall of the inner hole of the bracket body is provided with a diversion trench, and two ends of the diversion trench are respectively communicated to two end surfaces of the bracket body.
2. The rotor support according to claim 1, wherein: the diversion trench is linear, curve or spiral extension shape.
3. The rotor support according to claim 1 or 2, characterized in that: the guide grooves are arranged in a plurality of ways by taking the axle center of the bracket body as the symmetrical center.
4. A rotor assembly comprising a rotor support according to any one of claims 1 to 3;
the device also comprises a bearing, a magnetic ring and an impeller;
the bearing is arranged in the inner hole of the bracket body in a penetrating way and is coaxially arranged with the bracket body, and the magnetic ring is sleeved on the bracket body and is coaxially arranged with the bracket body;
one end of the bracket body extends along the radial direction to form an impeller mounting part, and the impeller is fixed on the impeller mounting part.
5. The rotor assembly of claim 4 wherein: the outer wall of the bracket body is concaved inwards along the radial direction to form a magnetic ring installation groove, and the magnetic ring is sleeved on the magnetic ring installation groove.
6. The rotor assembly of claim 4 or 5, wherein: the rotor support is integrally formed with the bearing and the magnetic ring in an in-mold injection molding mode.
7. The rotor assembly of claim 4 wherein: the impeller is fixed on the impeller mounting part of the rotor bracket in one of ultrasonic welding, interference fit, screw locking and fastening.
8. A centrifugal water pump comprising a rotor assembly according to any one of claims 4-7; the pump also comprises a pump shell, a pump cover, a shaft core and a stator assembly;
a rotor chamber is formed in the pump shell, and a first shaft core seat is formed at the bottom of the rotor chamber;
a second axial core seat is formed in the pump cover, the pump cover and the pump shell are combined and fixed with each other, a cavity is formed in the pump cover, the first axial core seat of the pump shell and the second axial core seat of the pump cover are opposite to each other, and a water inlet and a water outlet which are communicated with the cavity are respectively formed in the pump cover;
the two ends of the shaft core are respectively inserted and fixed into a first shaft core seat of the pump shell and a second shaft core seat of the pump cover, and a bearing of the rotor assembly is sleeved on the shaft core, so that a magnetic ring of the rotor assembly is supported in the rotor chamber, and an impeller of the rotor assembly is supported in the chamber;
the stator assembly is arranged in the pump shell and surrounds the outside of the rotor chamber, so that the stator assembly can magnetically couple and link the rotor assembly to rotate.
9. The centrifugal water pump of claim 8, wherein: and the end surfaces of the first shaft core seat of the pump shell and the second shaft core seat of the pump cover are respectively provided with a thrust washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320145692.3U CN220457190U (en) | 2023-02-07 | 2023-02-07 | Rotor support, rotor assembly and centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320145692.3U CN220457190U (en) | 2023-02-07 | 2023-02-07 | Rotor support, rotor assembly and centrifugal water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220457190U true CN220457190U (en) | 2024-02-06 |
Family
ID=89736582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320145692.3U Active CN220457190U (en) | 2023-02-07 | 2023-02-07 | Rotor support, rotor assembly and centrifugal water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220457190U (en) |
-
2023
- 2023-02-07 CN CN202320145692.3U patent/CN220457190U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 30 Dapu Industrial Street, Changping Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Shenpeng Technology Co.,Ltd. Country or region after: China Address before: 523000 Gangzi Dapu Industrial Zone, Changping Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN SHENPENG ELECTRONICS Co.,Ltd. Country or region before: China |