CN203691146U - Wheel hub motor with lubricating oil oil-way circulation mechanism - Google Patents
Wheel hub motor with lubricating oil oil-way circulation mechanism Download PDFInfo
- Publication number
- CN203691146U CN203691146U CN201420051431.6U CN201420051431U CN203691146U CN 203691146 U CN203691146 U CN 203691146U CN 201420051431 U CN201420051431 U CN 201420051431U CN 203691146 U CN203691146 U CN 203691146U
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- China
- Prior art keywords
- wheel hub
- clutch
- fixed
- oil baffle
- planetary gear
- 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.)
- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 239000010687 lubricating oil Substances 0.000 title abstract description 3
- 239000000314 lubricant Substances 0.000 claims description 29
- 230000001351 cycling effect Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 47
- 239000004519 grease Substances 0.000 abstract description 16
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a wheel hub motor with a lubricating oil oil-way circulation mechanism. The wheel hub motor comprises a main shaft, a wheel hub housing and a wheel hub end cover which are rotatably assembled on the main shaft, and a stator and a rotor which are arranged in the wheel hub housing. The stator is fixed on the main shaft. The rotor is drivingly connected with the wheel hub housing through a planet gear deceleration mechanism. The planet gear deceleration mechanism comprises a sun gear fixed with the rotor, a plurality of planet gears engaged with the sun gear, a clutch fixed on the main shaft, a plurality of planet shafts fixed on the clutch, fixed on the wheel hub housing and the planet gears are rotatably assembled on the planet shafts. An oil baffle plate fixed on the clutch is arranged at the side part of each planet gear. The oil baffle plate is separated from the planet gear at a certain distance and an oil storage gap is formed between the oil baffle plate and the planet gear. The length direction of the oil baffle plate is substantially parallel to the radial direction of the clutch. The motor can ensures that lubricating grease brought out by the planet gears can be cycled when the internal planet gear deceleration mechanism is running, thus the service life of the wheel hub motor is prolonged and the running performances of the motor are raised.
Description
Technical field
The utility model relates to a kind of wheel hub motor, and particularly a kind of wheel hub motor with lubricant oil way cycling mechanism, is mainly used in electric bicycle field.
Background technology
Wheel hub motor uses usually used as bicycle motor, and the feature that it has effect environmental protection and energy saving, is widely used in electric bicycle field at present.
Existing wheel hub motor generally comprises main shaft, rotation and is assemblied in wheel hub shell on main shaft, is fixed on the wheel hub end housing of wheel hub shell one side and is located in wheel hub shell and be provided with stator and rotor.Wherein stator is fixed on main shaft by stator support, and rotor is in transmission connection by planetary gear reducing mechanism and wheel hub shell; Some planetary gears that described planetary gear reducing mechanism comprises the central gear fixing with rotor, engage with central gear, be fixed on clutch on main shaft, be fixed on the some planet axis on clutch and be fixed on wheel hub shell and ring gear engage with each planetary gear, described planetary gear rotates and is assemblied in described planet axis.
When work, electrical power rotor driven and rotating with the fixing central gear of rotor, central gear drives the planetary gear rotation being engaged with again, we can regard clutch as the planet carrier of a special construction, planetary gear and then drive ring gear rotate, ring gear drives again with it fixing wheel hub shell rotation, and then drives vehicle wheel rotation.
But the problem that existing wheel hub motor exists is: when machine operation, planetary rotation can make lubricant grease be involute shape outwards to take out of.A lubricant grease part of being taken out of departs from this planetary gear reducing mechanism completely and gets rid of, and cannot use; Another part stick on clutch but with planetary gear away from, although this parts of lubricating oil fat still in planetary gear reducing mechanism, it can not effectively contact with planetary gear or other revolving parts, so there is no lubricant effect.So just cause planetary gear reducing mechanism running usefulness to reduce, greatly affect motor useful life.
Utility model content
The utility model object is: a kind of wheel hub motor with lubricant oil way cycling mechanism is provided, when this motor can be guaranteed the running of internal planetary gear reducing gear, the lubricant grease of being taken out of by planetary gear can be from being newly recycled, in the useful life that extends this type of wheel hub motor with this, improve motor rotation performance.
The technical solution of the utility model is: a kind of wheel hub motor with lubricant oil way cycling mechanism, comprise main shaft, be assemblied on main shaft and the wheel hub shell and the wheel hub end housing that interfix and be located at described stator and rotor of taking turns in hub shell by bearing rotary, wherein stator is fixed on main shaft by stator support, and rotor is in transmission connection by planetary gear reducing mechanism and wheel hub shell, described planetary gear reducing mechanism comprises the central gear fixing with rotor, the some planetary gears that engage with central gear, be fixed on the clutch on main shaft, be fixed on the some planet axis on clutch, and be fixed on wheel hub shell and the ring gear engaging with each planetary gear, described planetary gear rotation is assemblied in described planet axis, be provided with an oil baffle being fixed on described clutch at described each planetary sidepiece, thereby the oil storage gap that forms between the two spaced apart between described oil baffle and planetary gear, and the radial direction almost parallel of the length direction of oil baffle and described clutch.
As preferably, described oil baffle be involute shape.
As preferably, described oil baffle is weldingly fixed on described clutch.
As preferably, described oil baffle and described clutch are structure as a whole.
As preferably, described clutch is mono-directional overrun clutch, and it comprises clutch inner ring and the clutch outer with this clutch inner ring one-way locking, and described clutch inner ring fixed cover is located on described main shaft, and described planet axis is fixed in clutch outer.
As preferably, on described oil baffle, form the oil baffle Drainage Section extending between described clutch inner ring and clutch outer.
As preferably, described oil baffle is fixed in described clutch outer.
As preferably, described planet axis and planetary gear are respectively three.
The utility model has the advantages that:
This wheel hub motor that the utility model provides, due to the oil baffle having increased on clutch for planetary gear sidepiece, thereby can effectively prevent the leakage that scatters of planetary gear reducing mechanism when running lubricant grease, the lubricant grease efficient circulation use for a long time of leaking makes to scatter, greatly strengthen the running usefulness of planetary gear reducing mechanism, thereby extend the useful life of this type of motor, improved its behavior in service.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the structure cutaway view of wheel hub motor in the utility model embodiment;
Fig. 2 is the structural representation of planetary gear reducing mechanism in the utility model embodiment;
Fig. 3 is the front view of clutch in the utility model embodiment;
Fig. 4 is the cutaway view of clutch in the utility model embodiment;
Wherein: 1-main shaft, 2-takes turns hub shell, 3-oil baffle, 3a-oil baffle Drainage Section, 4-central gear, 5-rotor, 6-stator, 7-wheel hub end housing, 8-stator support, 9-ring gear, 10-clutch, 10a-clutch inner ring, 10b-clutch outer, 11-planet axis, 12-planetary gear, A-oil storage gap.
Embodiment
Fig. 1 has shown a specific embodiment of this wheel hub motor with lubricant oil way cycling mechanism of the utility model, it is the same with routine techniques wheel hub motor, also comprise main shaft 1, on main shaft 1, be rotatably installed with by bearing (not marking in figure) the wheel hub shell 2 and the wheel hub end housing 7 that interfix, in wheel hub shell 2, be provided with stator 6 and rotor 5, this example adopts internal stator outer-rotor structure.Wherein, rotor 5 is assemblied on main shaft 1 by bearing (not marking in figure) rotation, and stator 6 is fixed on stator support 8, and stator support 8 is fixed on main shaft 1.Rotor 5 is in transmission connection by planetary gear reducing mechanism and wheel hub shell 2, three (only illustrating one in figure) planetary gears 12 that described planetary gear reducing mechanism comprises the central gear 4 fixing with rotor 5, engage with central gear 4, be fixed on clutch 10 on main shaft 1, be fixed on three (only illustrating one in figure) planet axis 11 on clutch 10 and be fixed on wheel hub shell 2 and the ring gear 9 engaging with each planetary gear 12, described planetary gear 12 rotations are assemblied in described planet axis 11.
Shown in seeing figures.1.and.2, the key improvements of the present embodiment is: be provided with an oil baffle 3 being fixed on described clutch 10 at the sidepiece of described each planetary gear 12, thereby the oil storage gap A that forms between the two spaced apart between oil baffle 3 and planetary gear 12, and the radial direction almost parallel of the length direction of oil baffle 3 and described clutch 10, also just say that one end of oil baffle 3 is positioned at the radial outside of clutch 10, the radially inner side of other end displacement clutch 10.
Adopt after said structure, when machine operation drives planetary gear 12 to rotate, the lubricant grease of being taken out of by planetary gear 12 will be blocked in the A place, oil storage gap between oil baffle 3 and planetary gear 12 by described oil baffle 3, the lubricant grease being blocked abuts against oil baffle 3 that side near planetary gear 12, and is mostly positioned at the position of oil baffle 3 near clutch 10 centers.Along with the rotation of planetary gear 12, the lubricant grease of being brought in the A of oil storage gap by it gets more and more, after the lubricant grease in the A of oil storage gap reaches a certain amount of (depending primarily on the gap length of oil baffle 3 and planetary gear 12), the wheel toothed portion of planetary gear 12 will contact with the lubricant grease in the A of oil storage gap, thereby the lubricant grease in the A of oil storage gap is brought in planetary gear again, guarantee lubricant grease efficient circulation use for a long time, greatly strengthen the running usefulness of this planetary gear reducing mechanism, thereby extend the useful life of this type of motor, improve the behavior in service of motor.
Consider that the lubricant grease of being taken out of is generally involute shape motion, for lubricant grease is carried out to more effective stopping, involute shape is arranged to by described oil baffle 3 by this example, as Fig. 2.
As shown in Figure 3 and Figure 4, in the present embodiment, described clutch 10 is mono-directional overrun clutch, it comprises clutch inner ring 10a and the clutch outer 10b with this clutch inner ring 10a one-way locking, described clutch inner ring 10a fixed cover is located on described main shaft 1, and described planet axis 11 is fixed on clutch outer 10b.Described oil baffle 3 is fixed on described clutch outer 10b.And operation principle and the same routine techniques of structure thereof of mono-directional overrun clutch in the present embodiment, no longer state more.
And this example forms the oil baffle Drainage Section 3a extending between described clutch inner ring 10a and clutch outer 10b on described oil baffle 3, as Fig. 2.So, stopped that by oil baffle 3 part for the lubricant grease getting off just can move in the gap between clutch inner ring 10a and clutch outer 10b along oil baffle Drainage Section 3a, thereby clutch 10 is lubricated.
When electrical power work, rotor 5 drives fixing with it central gear 4 to rotate, central gear 4 drives the planetary gear 12 being engaged with to rotate again, now clutch inner ring 10a and clutch outer 10b do not rotate in locking state, planetary gear 12 and then drive ring gear 9 rotate, ring gear 9 drives again fixing with it wheel hub shell 2 to rotate, and then drives vehicle wheel rotation.
Certainly above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalent transformations doing according to the Spirit Essence of the utility model main technical schemes or modification, within all should being encompassed in protection range of the present utility model.
Claims (8)
1. one kind has the wheel hub motor of lubricant oil way cycling mechanism, comprise main shaft (1), be assemblied in main shaft (1) upper and the wheel hub shell (2) and the wheel hub end housing (7) that interfix and be located at described hub shell (2) interior stator (6) and the rotor (5) of taking turns by bearing rotary, wherein stator (4) is fixed on main shaft (1) above by stator support (8), and rotor (5) is in transmission connection by planetary gear reducing mechanism and wheel hub shell (2); Some planetary gears (12) that described planetary gear reducing mechanism comprises the central gear (4) fixing with rotor (5), engage with central gear (4), be fixed on clutch (10) on main shaft (1), be fixed on the some planet axis (11) on clutch (10) and be fixed on the ring gear (9) that wheel hub shell (2) is upper and engage with each planetary gear (12), described planetary gear (12) rotation is assemblied in described planet axis (11)
It is characterized in that: be provided with an oil baffle (3) being fixed on described clutch (10) at the sidepiece of described each planetary gear (12), described oil baffle (3) and planetary gear (12) thus between spaced apartly between the two, form an oil storage gap (A), and the radial direction almost parallel of the length direction of oil baffle (3) and described clutch (10).
2. the wheel hub motor with lubricant oil way cycling mechanism according to claim 1, is characterized in that: described oil baffle (3) for involute shape.
3. the wheel hub motor with lubricant oil way cycling mechanism according to claim 1, is characterized in that: described oil baffle (3) is weldingly fixed on described clutch (10).
4. the wheel hub motor with lubricant oil way cycling mechanism according to claim 1, is characterized in that: described oil baffle (3) is structure as a whole with described clutch (10).
5. according to the wheel hub motor with lubricant oil way cycling mechanism described in claim 1 or 2 or 3 or 4, it is characterized in that: described clutch (10) is mono-directional overrun clutch, it comprises clutch inner ring (10a) and the clutch outer (10b) with this clutch inner ring (10a) one-way locking, it is upper that described clutch inner ring (10a) fixed cover is located at described main shaft (1), and described planet axis (11) is fixed in clutch outer (10b).
6. the wheel hub motor with lubricant oil way cycling mechanism according to claim 5, is characterized in that: on described oil baffle (3), form the oil baffle Drainage Section (3a) extending between described clutch inner ring (10a) and clutch outer (10b).
7. the wheel hub motor with lubricant oil way cycling mechanism according to claim 5, is characterized in that: described oil baffle (3) is fixed in described clutch outer (10b).
8. according to the wheel hub motor with lubricant oil way cycling mechanism described in claim 1 or 2 or 3 or 4, it is characterized in that: described planet axis (11) and planetary gear (12) are respectively three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051431.6U CN203691146U (en) | 2014-01-26 | 2014-01-26 | Wheel hub motor with lubricating oil oil-way circulation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051431.6U CN203691146U (en) | 2014-01-26 | 2014-01-26 | Wheel hub motor with lubricating oil oil-way circulation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691146U true CN203691146U (en) | 2014-07-02 |
Family
ID=51013006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420051431.6U Expired - Lifetime CN203691146U (en) | 2014-01-26 | 2014-01-26 | Wheel hub motor with lubricating oil oil-way circulation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691146U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973673A (en) * | 2018-08-22 | 2018-12-11 | 倍能科技（广州）有限公司 | Spur type tire energy recovery assemblies |
| CN109643933A (en) * | 2016-08-09 | 2019-04-16 | 日本电产株式会社 | Motor unit |
| CN114321292A (en) * | 2021-12-31 | 2022-04-12 | 浙江炜粒传动有限公司 | Speed reducer with high stability |
-
2014
- 2014-01-26 CN CN201420051431.6U patent/CN203691146U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109643933A (en) * | 2016-08-09 | 2019-04-16 | 日本电产株式会社 | Motor unit |
| CN109643933B (en) * | 2016-08-09 | 2021-07-23 | 日本电产株式会社 | Motor unit |
| CN108973673A (en) * | 2018-08-22 | 2018-12-11 | 倍能科技（广州）有限公司 | Spur type tire energy recovery assemblies |
| CN114321292A (en) * | 2021-12-31 | 2022-04-12 | 浙江炜粒传动有限公司 | Speed reducer with high stability |
| CN114321292B (en) * | 2021-12-31 | 2023-08-22 | 浙江炜粒传动有限公司 | Speed reducer with high stability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Suzhou City Industrial Park Loufeng town and the road of 215122 Jiangsu province No. 9 Patentee after: BAFANG ELECTRIC (SUZHOU) Co.,Ltd. Address before: Suzhou City Industrial Park Loufeng town and the road of 215122 Jiangsu province No. 9 Patentee before: SUZHOU BAFANG ELECTRIC MOTOR SCIENCE-TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |