CN205017150U - Permanent magnet synchronous motor bearing sealing structure - Google Patents
Permanent magnet synchronous motor bearing sealing structure Download PDFInfo
- Publication number
- CN205017150U CN205017150U CN201520780225.3U CN201520780225U CN205017150U CN 205017150 U CN205017150 U CN 205017150U CN 201520780225 U CN201520780225 U CN 201520780225U CN 205017150 U CN205017150 U CN 205017150U
- Authority
- CN
- China
- Prior art keywords
- bearing
- clutch shaft
- wheel hub
- main shaft
- ring
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 31
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 11
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a permanent magnet synchronous motor, including wheel hub, main shaft, bearing cap, first bearing, second bearing, draining sealing device and frame, wheel hub and main shaft integrated into one piece, first bearing and second bearing are installed respectively in the main shaft then together in the insertion machine pedestal, the bearing cap is established in first bearing one side, use the fix with screw between bearing cap and the frame, bearing cap and second bearing and lie in the outerface of spindle between them, the frame internal surface encloses into sealed cavity jointly, draining sealing device wears the cover and just lies in between first bearing and the second bearing on the main shaft, nevertheless near to the side of first bearing, draining sealing device and second bearing mutually from and with lie in the outerface of spindle between the two, the frame internal surface encloses into the trapped fuel cavity jointly. The utility model discloses structural design is simple reasonable, can fully solve the diaxon and hold the concentricity problem, reduces the risk that became invalid to can regularly release the indoor unnecessary fluid oil of bearing through the oily passageway on the wheel hub, in order to avoid produce the oil leak risk, the dismantlement of first bearing is convenient. The diaxon holds the equal mountable risk that greatly reduced became invalid in the frame.
Description
Technical field
The utility model relates to a kind of permanent magnet synchronous motor, is specifically related to the bearing seal structure of this permanent magnet synchronous motor.
Background technology
Existing outer rotor permanent magnet motor by the effect of bearing, main shaft is operated in support, and the waste oil of its liquid state will flow in trapped fuel cavity according to the passage designed.But there is following problem in bearing seal structure at present:
1, the second bearing outside diameter is larger than support cavity inside diameter, second bearing could install the second bearing after main shaft and the clutch shaft bearing such as only having put into support cavity again, described second bearing can only be contained in rear end cap, rear end cap is coordinated with support by seam, doing the consequence produced like this is that first and second bearing concentricity cannot well be ensured, often produces abnormal sound, vibration and traction sheave and encoder etc. and to beat overproof a series of problem.
2, trapped fuel cavity is enough large, and can bear enough waste oil, the type of some particular design in actual design, its trapped fuel hollow-cavity capacity may be limited, therefore, needs oil leak hole and release unnecessary fluid oil during timing repair and maintenance.
3, be inconvenient to dismantle clutch shaft bearing, its bearing trim ring hot jacket is on axle, and because space is less, common tool cannot be entered, and therefore, more difficultly to pull down, and causes dismounting clutch shaft bearing difficulty to increase.
In addition, in some special applications, the axial dimension of complete machine is restricted, and trapped fuel hollow-cavity capacity is not, in very large situation, likely cause waste oil overheap relatively, oil in bearing chamber cannot be let out smoothly into trapped fuel cavity, there is bearing chamber in too much fluid oil, along with bearing chamber temperature raises, its pressure constantly increases, leak out likely slightly weak place may be sealed from bearing cap or sealing ring etc., cause larger quality risk.
Summary of the invention
Therefore, the purpose of this utility model is to provide a kind of cleaning, effectively can reduces quality risk and reduces cost and the permanent magnet synchronous motor bearing seal structure of more convenient maintaining.
The utility model object realizes like this.
A kind of permanent magnet synchronous motor bearing seal structure, comprise wheel hub, main shaft, bearing cap, clutch shaft bearing, second bearing, draining sealing device and support, wheel hub and integrated spindle axis shaping, described clutch shaft bearing and the second bearing are installed on main shaft then together in insertion machine pedestal respectively, bearing cap is located at clutch shaft bearing side, be screwed between bearing cap and support, bearing cap and the second bearing and the outerface of spindle between them, support inner surface surrounds sealed cavity jointly, draining sealing device to be set on main shaft and between clutch shaft bearing and the second bearing, but abut against clutch shaft bearing side, draining sealing device and the second bearing from and with the outerface of spindle be positioned between the two, support inner surface surrounds trapped fuel cavity jointly.
Described draining sealing device comprises bearing trim ring and track ring, and bearing trim ring is enclosed within the outerface of spindle, and track ring is enclosed within bearing trim ring outer surface, is provided with drain path between bearing trim ring and track ring, and drain path is communicated with clutch shaft bearing and trapped fuel cavity.
Described wheel hub is provided with oily passage, is provided with closely-pitched draining plug screw in oily passage, is provided with sealing ring between the nut inner surface of closely-pitched draining plug screw and wheel hub, outside oily channel connection sealed cavity and hub body.
Technique scheme also can be made to the following further improve.
The sealed cavity diameter of described installation clutch shaft bearing is greater than the sealed cavity diameter of installation second bearing.
Be provided with two sealing rings between described track ring and support, one of them sealing ring is positioned on track ring end face against clutch shaft bearing internal end surface.
The utility model structural design advantages of simple, can fully solve two bearings concentricity issues, reduce the risk lost efficacy, and regularly fluid oil unnecessary in bearing chamber can be released by the oily passage on wheel hub, in order to avoid produce leakage of oil risk, the convenient disassembly of clutch shaft bearing.Two bearings all can be installed on the risk greatly reducing inefficacy in support.
Accompanying drawing explanation
Fig. 1 is the present embodiment structural representation sketch, but a half structure is only shown, second half structure almost symmetry.
Fig. 2 is the enlarged diagram of A.
Fig. 3 is the enlarged diagram of B.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment, composition graphs 1 to Fig. 3, a kind of permanent magnet synchronous motor bearing seal structure, comprise wheel hub 1, main shaft 2, bearing cap 3, clutch shaft bearing 4, second bearing 5, draining sealing device and support 6, wheel hub 1 is one-body molded with main shaft 2 outer end, clutch shaft bearing 4 and the second bearing 5 are installed on main shaft 2 respectively, described support 6 is provided with the cavity 7 of accommodating main shaft 2, clutch shaft bearing 4 and the second bearing 5, the main shaft 2 installing clutch shaft bearing 4 and the second bearing 5 inserts in cavity 7, and the cavity diameter D1 of described installation clutch shaft bearing 4 is greater than the cavity diameter D2 of installation second bearing 5.Bearing cap 3 is located in the cavity 7 of clutch shaft bearing 4 lateral surface, fixes between bearing cap 3 and support 6 with screw 8.Bearing cap 3 and the second bearing 5 and the main shaft between them 2 outer surface, support 6 inner surface surround sealed cavity jointly.
Described wheel hub 1 is provided with oily passage 9, and oily passage 9 is communicated with clutch shaft bearing 4 and wheel hub 1 is external, is provided with closely-pitched draining plug screw 10 in oily passage 9, is provided with sealing ring 11 between the nut inner surface of closely-pitched draining plug screw 10 and wheel hub 1.Unclamp closely-pitched draining plug screw 10, the waste oil of high pressure is discharged from cavity 7 by oily passage 9.
Draining sealing device to be located between clutch shaft bearing 4 and the second bearing 5 but to be abutted against clutch shaft bearing 4 side, draining sealing device and the second bearing 5 from and jointly surround trapped fuel cavity 12 with the outerface of spindle be positioned between the two, support inner surface.
Described draining sealing device comprises bearing trim ring 13 and track ring 14, bearing trim ring 13 is enclosed within main shaft 2 outer surface, track ring 14 is enclosed within bearing trim ring 13 outer surface, is provided with drain path 15 between bearing trim ring 13 and track ring 14, and drain path 15 is communicated with clutch shaft bearing 4 and trapped fuel cavity 12.
Two sealing rings 16,17 are provided with between described track ring 14 and support 6, one of them sealing ring 16 is positioned on track ring 14 end face against clutch shaft bearing 4 internal end surface, sealing ring 16 impels clutch shaft bearing 4 near sealing ring 16 compresses track ring 14 by screw 8 that bearing cap 3 is connected with support 6, clutch shaft bearing 4 achieves axially gapless reliable location, eliminate the axis of motor in running may brought due to tolerance build-up and alter sound, track ring axially reliable location can also be guaranteed.Another sealing ring 17 and support 6 interference fit realize sealing and guarantee assembling that rear track ring is reliably unlikely to drop.
If need change clutch shaft bearing 4, only just clutch shaft bearing and bearing trim ring need can be pulled out in the lump with the common sealing ring mounting groove drawing horse to catch on track ring, clutch shaft bearing is changed very convenient.
Claims (3)
1. a permanent magnet synchronous motor bearing seal structure, comprise wheel hub, main shaft, bearing cap, clutch shaft bearing, second bearing, draining sealing device and support, wheel hub and integrated spindle axis shaping, it is characterized in that: described clutch shaft bearing and the second bearing are installed on main shaft then together in insertion machine pedestal respectively, bearing cap is located at clutch shaft bearing side, be screwed between bearing cap and support, bearing cap and the second bearing and the outerface of spindle between them, support inner surface surrounds sealed cavity jointly, draining sealing device to be set on main shaft and between clutch shaft bearing and the second bearing, but abut against clutch shaft bearing side, draining sealing device and the second bearing from and with the outerface of spindle be positioned between the two, support inner surface surrounds trapped fuel cavity jointly,
Described draining sealing device comprises bearing trim ring and track ring, and bearing trim ring is enclosed within the outerface of spindle, and track ring is enclosed within bearing trim ring outer surface, is provided with drain path between bearing trim ring and track ring, and drain path is communicated with clutch shaft bearing and trapped fuel cavity;
Described wheel hub is provided with oily passage, is provided with closely-pitched draining plug screw in oily passage, is provided with sealing ring between the nut inner surface of closely-pitched draining plug screw and wheel hub, outside oily channel connection sealed cavity and hub body.
2. permanent magnet synchronous motor bearing seal structure according to claim 1, is characterized in that: the sealed cavity diameter of described installation clutch shaft bearing is greater than the sealed cavity diameter of installation second bearing.
3. permanent magnet synchronous motor bearing seal structure according to claim 1, it is characterized in that: be provided with two sealing rings between described track ring and support, one of them sealing ring is positioned on track ring end face against clutch shaft bearing internal end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520780225.3U CN205017150U (en) | 2015-10-10 | 2015-10-10 | Permanent magnet synchronous motor bearing sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520780225.3U CN205017150U (en) | 2015-10-10 | 2015-10-10 | Permanent magnet synchronous motor bearing sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017150U true CN205017150U (en) | 2016-02-03 |
Family
ID=55215732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520780225.3U Active CN205017150U (en) | 2015-10-10 | 2015-10-10 | Permanent magnet synchronous motor bearing sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205017150U (en) |
-
2015
- 2015-10-10 CN CN201520780225.3U patent/CN205017150U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107630820A (en) | A kind of draining pump and the washing machine using the draining pump | |
| CN201728758U (en) | Pulley gear of multi-wire cutting machine | |
| CN201934389U (en) | Boracic acid conveying pump for nuclear power plant | |
| CN205017150U (en) | Permanent magnet synchronous motor bearing sealing structure | |
| CN203711867U (en) | Rotor braking device | |
| CN201268221Y (en) | Main reducing gear case set assembling structure of combined type axle housing | |
| CN203813562U (en) | A novel motor end cap water cooling structure | |
| CN204243966U (en) | A kind of hub motor for electric automobile mounting structure | |
| CN203978833U (en) | A kind of sealing configuration of Roots pump | |
| CN202646637U (en) | Mechanical seal device of reducer | |
| CN103075419A (en) | Dismounting structure of large-scale joint bearing | |
| CN102116322B (en) | Equipment cooling water pump for nuclear power station | |
| CN202762633U (en) | Thin oil synchronization vibration exciter | |
| CN213195660U (en) | Main shaft structure with good sealing and lubricating effects | |
| CN201774348U (en) | Adjustable shaft seal structure of electric motor | |
| CN211308709U (en) | Steering gear shell | |
| CN201925233U (en) | Equipment cooling pump for nuclear power station | |
| CN203383976U (en) | Sealing cover applied to hydraulic motor | |
| CN202301155U (en) | Oil seal device for pump | |
| CN103062109A (en) | Oil seal device for pump | |
| CN103206519B (en) | A kind of gear box structure of triple reduction gear | |
| CN203190034U (en) | Conversion joint for compressed natural gas charging valve | |
| CN206539532U (en) | A kind of machine seals axle sleeve | |
| CN202228681U (en) | Combined oil seal | |
| CN203604594U (en) | Sealing structure of feeding box output shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |