CN204992907U - Liquid pump, motor and axle sleeve unit thereof - Google Patents
Liquid pump, motor and axle sleeve unit thereof Download PDFInfo
- Publication number
- CN204992907U CN204992907U CN201520669956.0U CN201520669956U CN204992907U CN 204992907 U CN204992907 U CN 204992907U CN 201520669956 U CN201520669956 U CN 201520669956U CN 204992907 U CN204992907 U CN 204992907U
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- China
- Prior art keywords
- fixture
- rotor
- motor
- bearing
- bolster
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- Expired - Fee Related
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Abstract
The utility model provides a liquid pump, including the motor and by motor drive's impeller stator, permanent magnet rotor, the base member between stator and rotor and support rotor pivoted axle sleeve unit, the base member is pegged graft in the stator, the rotor is rotationally acceptd in the base member, the rotor includes a pivot, the pivot has an output, the output stretches out outside the base member. The axle sleeve unit includes the mounting of fixed connection in the base member, accept in the mounting and the bearing of ring cover pivot and set up the springiness cushioning spare between mounting and bearing, impeller connection rotates along with the rotor is synchronous on the output of rotor. The utility model discloses the liquid pump is provided with the axle sleeve unit at the pivot output, forms it and supports, guarantees the coaxial nature of rotor and stator, establish the vibration of bolster absorption rotor in addition in the axle sleeve unit, avoid the rotor oscillation outwards to transmit, reduce the noise generation.
Description
Technical field
The utility model relates to liquid pump, particularly relates to the drive motors of liquid pump.
Background technology
In domestic electric appliance, as washing machine, dishwasher etc., be provided with liquid pump and pressurize to water and carry, to clean in the water introducing equipment of cleaning clothing, dishes etc., and the sewage after cleaning the most at last is discharged.
Existing liquid pump normally rotates with electric machine drives impeller.Wherein, motor is made up of U-shaped iron core and the p-m rotor be arranged at rotationally in iron core.Reveal for avoiding water and cause short circuit, be provided with matrix between described rotor and iron core, rotor is contained in matrix, and the rotating shaft of rotor is protruding to be connected with impeller, and drives impeller is rotated.Because rotating shaft is protruding, it has larger axial length usually, therefore needs countershaft effectively to support, and ensures the alignment of rotor, maintains the smooth rotation of rotor, avoids the generation of noise.
Utility model content
In view of this, provide a kind of shaft sleeve unit countershaft to be formed and support, and provide the motor and liquid pump that adopt this shaft sleeve unit, running is stable, noise is little.
On the one hand, the utility model provides a kind of shaft sleeve unit, comprise fixture, be contained in the bearing in fixture, and the resilient snubber be arranged between fixture and bearing, the first concaveconvex structure is provided with between the inner radial surface of described fixture and the radially-outer surface of described resilient snubber, the second concaveconvex structure is provided with between the radially-outer surface of described bearing and the inner radial surface of described resilient snubber, the radial thickness of described resilient snubber between the first concaveconvex structure and the second concaveconvex structure is not more than the radial distance between the radially-outer surface of described bearing and the inner radial surface of described fixture.
On the other hand, the utility model provides a kind of motor, comprise stator, rotor, be formed at the matrix between stator and rotor, and the shaft sleeve unit that support rotor is rotated, described matrix is plugged in stator, described rotor is contained in matrix rotationally, described rotor comprises a rotating shaft, described rotating shaft has an output, described output stretches out outside matrix for being connected with impeller, described shaft sleeve unit comprises the fixture be fixedly connected in matrix, be contained in the bearing of also ring set rotating shaft in fixture, and the resilient snubber be arranged between fixture and bearing.
The utility model also provides a kind of liquid pump, comprise motor and by motor-driven impeller, described motor comprises stator, rotor, be formed at the matrix between stator and rotor, and the shaft sleeve unit that support rotor is rotated, described matrix is plugged in stator, described rotor is contained in matrix rotationally, described rotor comprises a rotating shaft, described rotating shaft has an output, described output stretches out outside matrix, with rotor synchronous axial system on the output that described impeller is connected to rotor, described shaft sleeve unit comprises the fixture be fixedly connected in matrix, be contained in the bearing of also ring set rotating shaft in fixture, and the resilient snubber be arranged between fixture and bearing.
Compared to prior art, the utility model liquid pump is provided with shaft sleeve unit at rotating shaft output, is formed and supports, ensure the coaxiality of rotor and stator to it; Establish bolster to absorb the vibration of rotor in addition in shaft sleeve unit, avoid rotor oscillation outwards to transmit, reduce the generation of noise.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of the utility model liquid pump.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the enlarged drawing of the shaft sleeve unit of the motor of liquid pump shown in Fig. 2.
Fig. 4 is the exploded view of shaft sleeve unit shown in Fig. 3.
Fig. 5 is the cutaway view of shaft sleeve unit shown in Fig. 3.
Fig. 6 is the rotor of shaft sleeve unit and motor, the assembling view of matrix.
Fig. 7 is the schematic diagram of another embodiment of shaft sleeve unit.
Fig. 8 is the cutaway view of Fig. 7.
Embodiment
Below in conjunction with accompanying drawing, by describing in detail embodiment of the present utility model, will make the technical solution of the utility model and other beneficial effects apparent.Be appreciated that accompanying drawing only provides reference and explanation use, be not used for being limited the utility model.The size shown in accompanying drawing is only for ease of clear description, and does not limit proportionate relationship.
As shown in Figure 1-2, according to the impeller 12 that the liquid pump of the utility model one embodiment comprises motor 10 and driven by motor 10.
Described motor 10 is preferably electric machine, comprises stator 14, the matrix 16 be plugged in stator 14, is contained in the shaft sleeve unit 20 that rotor 18 in matrix 16 and support rotor 18 rotate.Preferably, described stator 14 is made up of U-shaped iron core 22 and the coil 24 be wound on iron core 22, and iron core 22 is formed with a pair magnetic pole 26; Described rotor 18 is p-m rotor, comprises rotating shaft 26 and is fixed on a pair permanent magnet 28 in rotating shaft 26; Described matrix 16 is for closing the tubular structure of one end open in one end, and matrix 16 inserts between a pair magnetic pole 26 of stator 14, and openend 32 is towards impeller 12; One end of rotor 18 is contained in the blind end 30 of matrix 16 rotationally, and the other end is output 34, and the openend 32 through matrix 16 is connected with impeller 12; Described shaft sleeve unit 20 is contained in matrix 16, and is positioned at openend 32 place of matrix 16, and the output 34 of countershaft 26 is formed and supports, and maintains the stable of rotor 18 rotation.
Please refer to Fig. 3 to Fig. 5, described shaft sleeve unit 20 comprises the bearing 36 of socket, bolster 38 and fixture 40.
Described fixture 40 is positioned at the openend 32 of matrix 16, whole shaft sleeve unit 20 is fixedly installed in matrix 16.Fixture 40 entirety is in hollow cylindrical configuration, and the internal diameter of external diameter and matrix 16 is suitable.In the present embodiment, please refer to Fig. 6, the outer surface of fixture 40 is formed with flange 42, the inner surface of described matrix 16 is accordingly formed with draw-in groove 44, during assembling, described flange 42 snaps in draw-in groove 44 and whole shaft sleeve unit 20 is fixed in matrix 16.Understandably, also can form draw-in groove 44 on fixture 40, in matrix 16, form flange 42 accordingly, by being clasped of draw-in groove 44 and flange 42 shaft sleeve unit 20 be fixed equally.
Described fixture 40 is towards matrix 16 openend 32, namely the side towards impeller 12 is formed with end cap 46, described end cap 46 is by roughly closed for the openend 32 of matrix 16, and the central authorities of end cap 46 form perforation 48, and the output 34 of rotating shaft 26 is connected with impeller 12 through after perforation 48; Fixture 40 is towards the one end open inside matrix 16, and described bolster 38 is loaded in fixture 40 by the openend of fixture 40 with bearing 36.Wherein, described bearing 36 can be ball bearing, oiliness bearing, ceramic bearing etc., in order to the rotation of direct supporting revolving shaft 26.The material of described bearing 36 can be plastics as PPS, PTEF etc., there is certain hardness and resistance to wear.Described bolster 38 can be made up of materials such as rubber, has certain elasticity.During assembling, first bolster 38 is enclosed within bearing 36, then fills in together in fixture 40.
In the present embodiment, described bolster 38 all forms interference engagement with fixture 40, bearing 36, when assembling, bolster 38 produces deformation, effectively make up the tolerance of bearing 36, fixture 40, ensure the coaxiality of shaft sleeve unit 20 entirety, thus, even if the precision of bearing 36, fixture 40 itself is inadequate, the coaxiality of shaft sleeve unit 20 entirety is still ensured by bolster 38.Preferably, described bolster 38 all forms snaps into position, with spacing in the axial direction with bearing 36, fixture 40.
Particularly, the radially-outer surface evagination of described bolster 38 forms ring edge 50, and inner radial surface then indent is formed with annular groove 52.Preferably, the ring edge 50 of described bolster 38 is corresponding in position with annular groove 52, makes bolster 38 have enough thickness in annular groove 52 position, can have enough deformation spaces.Preferably, described bolster 38 is at the radial thickness d1 of its ring edge 50/ annular groove 52 position, and the radial spacing namely between outer surface and inner surface is slightly less than the radial thickness d2 of all the other positions of bolster 38, i.e. d1<d2.Accordingly, the radially-outer surface evagination of described bearing 36 is formed with ring edge 54, and the inner radial surface indent of described fixture 40 is formed with annular groove 56.
During assembling, the ring edge 54 of bearing 36 snaps in and is fixedly connected with bolster 38 by bearing 36 to the annular groove 52 of bolster 38, between the inner surface and the outer surface of bolster 38 of fixture 40, form the first concaveconvex structure; Afterwards bearing 36 and bolster 38 are inserted in fixture 40 by the openend of fixture 40 vertically, the ring edge 50 of bolster 38 snaps in in the annular groove 56 of fixture 40, between the outer surface and the inner surface of bolster 38 of bearing 36, form the second concaveconvex structure, whole shaft sleeve unit 20 is assembled into one.Described bolster 38 is at the radial thickness d1 of its ring edge 50/ annular groove 52 position, and the radial thickness namely between the first concaveconvex structure and the second concaveconvex structure, is not more than the radial distance, d 3 between the outer surface of bearing 38 and the inner surface of fixture 40, i.e. d1≤d3.
Preferably, described bolster 38 radially protrudes in its one end and is formed with flange 58, and the other end is radially formed with baffle ring 60 to projecting inward.The internal diameter of described baffle ring 60 is suitable with the external diameter of rotating shaft 26, is namely not less than the external diameter of bearing 36.Described baffle ring 60 is in skewed extension, and its thickness is less than the radial thickness of the remainder (part in the present embodiment mainly between bearing 36 and fixture 40) of bolster 38.After assembling with rotating shaft 26, baffle ring 60 and the outside wall surface close contact of rotating shaft 26, prevent dust etc. from entering shaft sleeve unit 20.When bearing 36 snaps in bolster 38, one end that bearing 36 is formed with flange 58 by bolster 38 is inserted, until touch with baffle ring 60 phase, baffle ring 60 pairs of bearings 36 form location, avoid bearing 36 through bolster 38.When bolster 38 and bearing 36 are snapped in fixture 40, one end that bolster 38 is formed with baffle ring 60 is inserted by the openend 32 of fixture 40, until the flange 58 of bolster 38 is touched with fixture 40 phase, ensure that the ring edge 50 of bolster 38 is connected with annular groove 52 buckle of fixture 40, form shaft sleeve unit 20.
When assembling with rotor 18 phase, first rotor 18 is inserted in matrix 16, the output 34 of the rotating shaft 26 of rotor 18 is protruding by the openend 32 of matrix 16, afterwards the shaft sleeve unit 20 assembled is socketed with in rotating shaft 26, and vertically shaft sleeve unit 20 is pushed into the openend 32 of matrix 16, until the flange 42 of fixture 40 snaps in in the draw-in groove 44 of matrix 16, shaft sleeve unit 20 is connected with matrix 16.Now, the output 34 of rotating shaft 26 passes through bearing 36, the baffle ring 60 of bolster 38 and the end cap 46 of fixture 40, is connected with impeller 12.When motor 10 starts, coil 24 energising of stator 14 and the magnetic fields of rotor 18, drive rotor 18 rotates, and final impeller 12 drives water flow.
In rotor 18 rotation process, because the output 34 in rotating shaft 26 is provided with shaft sleeve unit 20, it is formed and supports, ensure that rotating shaft 26 can not beat, maintain the coaxial of rotor 18 and stator 14, make the rotation of rotor 18 more stable, effectively reduce the generation of noise.In addition, the mitigation of the bolster 38 of the vibration warp beam sleeve unit 20 in rotor 18 rotation process with absorb after, substantially outwards can not transmit, reduce the generation of noise further.Understandably, the structure of described shaft sleeve unit 20 is not limited to the present embodiment, and it can change as required accordingly.
Fig. 7-8 is depicted as another embodiment of shaft sleeve unit 20, its difference is mainly: the radially-outer surface of bolster 38 and inner surface form the ring edge 50,54 of protrusion respectively, bearing 36 forms annular groove 52 at its outer surface accordingly, is connected with ring edge 54 buckle of the inner surface of bolster 38.In diagram, ring edge 54,50 position on the inside and outside surface of bolster 38 is corresponding, and described ring edge 50,54 also can be positioned at different positions in other embodiments.In addition, when the thickness of bolster 38 allows, also can within it, outer surface all forms annular groove, now forms ring edge respectively at the outer surface of bearing and the inner surface of fixture.
It should be noted that; the utility model is not limited to above-mentioned execution mode; according to creative spirit of the present utility model; those skilled in the art can also make other changes; these changes done according to creative spirit of the present utility model, all should be included within the utility model scope required for protection.
Claims (14)
1. a motor, comprise stator, p-m rotor, be formed at the shaft sleeve unit that matrix between stator and rotor and support rotor rotate, described matrix is plugged in stator, described rotor is contained in matrix rotationally, described rotor comprises a rotating shaft, described rotating shaft has an output, described output stretches out outside matrix, it is characterized in that: described shaft sleeve unit comprises the fixture be fixedly connected in matrix, be contained in fixture in and the bearing of ring set rotating shaft and the resilient snubber that is arranged between fixture and bearing.
2. motor as claimed in claim 1, is characterized in that, the outer surface of described fixture and the inner surface of matrix one of them be formed with flange, wherein another is formed with groove, and flange snaps into that groove is interior to be connected to fixture on matrix.
3. motor as claimed in claim 1, is characterized in that, the inner surface of described bolster and the outer surface of bearing one of them be formed with ring edge, wherein another is formed with annular groove, and ring edge snaps in and is connected with bolster by bearing to annular groove.
4. motor as claimed in claim 1, is characterized in that, the outer surface of described bolster and the inner surface of fixture one of them be formed with ring edge, wherein another is formed with annular groove, and ring edge snaps in and is connected with bolster by fixture to annular groove.
5. motor as claimed in claim 1, it is characterized in that, the outer surface evagination of described bolster is formed with ring edge, inner surface indent is formed with annular groove, the outer surface evagination of described bearing is formed with ring edge, the inner surface indent of described fixture is formed with annular groove, and the ring edge of described bearing snaps in in the annular groove of bolster, and the ring edge of described bolster snaps in in the annular groove of fixture.
6. motor as claimed in claim 1, it is characterized in that, the inside and outside surface of described bolster respectively evagination is formed with ring edge, the outer surface of described bearing and the inner surface of fixture respectively indent are formed with annular groove, the ring edge of the inner surface of described bolster snaps in in the annular groove of bearing, and the ring edge of outer surface snaps in in the annular groove of fixture.
7. motor as claimed in claim 1, it is characterized in that, described bolster is radially formed with baffle ring to projecting inward near one end of the output of rotating shaft, the outside wall surface close contact of described baffle ring and rotating shaft.
8. motor as claimed in claim 1, is characterized in that, described bolster radially protrudes away from one end of the output of rotating shaft and is formed with flange, and the end face of described flange and fixture offsets.
9. the motor as described in any one of claim 1-8, is characterized in that, described motor is electric machine, the coil that the stator of motor comprises U-shaped iron core and is wound on iron core, and iron core is formed with a pair magnetic pole; The rotor of motor is p-m rotor, include a pair permanent magnet, described permanent magnet to be contained in matrix and to be fixed in rotating shaft, described matrix is the cylindrical structure that one end open is closed in one end, the output of described rotating shaft is outwards passed by the openend of matrix, and described shaft sleeve unit is arranged at the openend of matrix.
10. a liquid pump, comprises motor and by motor-driven impeller, it is characterized in that: described motor is the motor described in any one of claim 1-9, with rotor synchronous axial system on the output that described impeller is connected to rotor.
11. 1 kinds of shaft sleeve unit, comprise fixture, be contained in the bearing in fixture, and the resilient snubber be arranged between fixture and bearing, the first concaveconvex structure is provided with between the inner radial surface of described fixture and the radially-outer surface of described resilient snubber, the second concaveconvex structure is provided with between the radially-outer surface of described bearing and the inner radial surface of described resilient snubber, the radial thickness of described resilient snubber between the first concaveconvex structure and the second concaveconvex structure is not more than the radial distance between the radially-outer surface of described bearing and the inner radial surface of described fixture.
12. shaft sleeve unit as claimed in claim 11, it is characterized in that, described resilient snubber one end is radially protruded and is formed with flange, and the axial end of described flange and fixture offsets.
13. shaft sleeve unit as claimed in claim 11, it is characterized in that, described resilient snubber one end is radially formed with baffle ring to projecting inward, and described baffle ring is tiltedly located between the axial end of described fixture and described bearing.
14. shaft sleeve unit as claimed in claim 13, it is characterized in that, the thickness of described baffle ring is less than the thickness at other positions of described resilient snubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669956.0U CN204992907U (en) | 2015-08-31 | 2015-08-31 | Liquid pump, motor and axle sleeve unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669956.0U CN204992907U (en) | 2015-08-31 | 2015-08-31 | Liquid pump, motor and axle sleeve unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992907U true CN204992907U (en) | 2016-01-20 |
Family
ID=55127231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520669956.0U Expired - Fee Related CN204992907U (en) | 2015-08-31 | 2015-08-31 | Liquid pump, motor and axle sleeve unit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204992907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487155A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump, motor and its shaft sleeve unit |
| CN106487155B (en) * | 2015-08-31 | 2024-07-02 | 德昌电机(深圳)有限公司 | Liquid pump, motor and shaft sleeve unit thereof |
-
2015
- 2015-08-31 CN CN201520669956.0U patent/CN204992907U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487155A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump, motor and its shaft sleeve unit |
| CN106487155B (en) * | 2015-08-31 | 2024-07-02 | 德昌电机(深圳)有限公司 | Liquid pump, motor and shaft sleeve unit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |