CN103401341B - The box-like hermetically-sealed construction of group of motors - Google Patents
The box-like hermetically-sealed construction of group of motors Download PDFInfo
- Publication number
- CN103401341B CN103401341B CN201310328202.4A CN201310328202A CN103401341B CN 103401341 B CN103401341 B CN 103401341B CN 201310328202 A CN201310328202 A CN 201310328202A CN 103401341 B CN103401341 B CN 103401341B
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- China
- Prior art keywords
- ring
- end cap
- axle stretch
- seal
- dynamic seal
- 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 - Fee Related
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- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses the box-like hermetically-sealed construction of group of motors, it comprises axle stretch end (1) and the end cap (3) of rotor, reinforced seal (4) is provided with between end cap (3) and axle stretch end (1), movable sealing is provided with between the end cap (3) outside reinforced seal (4) axially and axle stretch end (1), movable sealing comprises the dynamic seal ring (5) being arranged at axle stretch end (1) side and the static sealing ring (6) being arranged at end cap (3) side, and the contact site of dynamic seal ring (5) and static sealing ring (6) is provided with axial labyrinth seal structure.The invention has the beneficial effects as follows: structure is simple, it is convenient, reasonable in design to install and change, adopt the waterproof construction that contactless movable sealing combines with contact static seal, effectively anti-sealing, mud, sand and dust can enter motor internal, reduce the impact on reinforced seal, thus enhance sealing property, extend the useful life of reinforced seal, dependable performance.
Description
Technical field
The present invention relates to the box-like hermetically-sealed construction of motor seal technical field, particularly group of motors.
Background technology
New energy electric motor vehicle direct driving motor is directly placed in vehicle bottom, is connected with power transmission shaft, machine operation bad environments, very easily by the impact of water, mud, sand and dust.If motor front end protection is improper, very easily causes bearing damage, and then cause electrical fault.In addition, because the position of placing motor is lower, is easily immersed in water, can motor be damaged equally, affect vehicle operating.Because motor shaft is rotating parts, so the waterproof at the through place of axle is difficult to ensure, motor is easily intake, and even burns, and affects the useful life of motor.Existing motor sealing structure many employings reinforced seal, but seal is easily affected by environment, and seal life shortens, and electric machine main shaft easy to wear, therefore motor needs often to safeguard, can not meet instructions for use.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, the box-like hermetically-sealed construction of group of motors that a kind of structure is simple, install and change conveniently, extend reinforced seal useful life is provided.
Object of the present invention is achieved through the following technical solutions: the box-like hermetically-sealed construction of group of motors, it comprises axle stretch end and the end cap of rotor, axle stretch end is installed on end cap by bearing, reinforced seal is provided with between end cap and axle stretch end, movable sealing is provided with between the end cap outside described reinforced seal axially and axle stretch end, described movable sealing comprises the dynamic seal ring being arranged at shaft extension side and the static sealing ring being arranged at end cap side, O-ring seals A is provided with between dynamic seal ring and axle stretch end, O-ring seals B is provided with between static sealing ring and end cap, the contact site of dynamic seal ring and static sealing ring is provided with axial labyrinth seal structure.
Described labyrinth seal structure comprises the annular groove being arranged at dynamic seal ring radially-outer surface and the annular ridge A being arranged at static sealing ring inner radial surface, and the annular ridge A of static sealing ring is arranged in the annular groove of dynamic seal ring.
Be positioned at the degree of depth of height higher than the annular groove of dynamic seal ring of the annular ridge A of the static sealing ring of the axial sides of described dynamic seal ring.
The radially-outer surface being positioned at the dynamic seal ring of the axial sides of described static sealing ring is provided with annular ridge B, and the height of annular ridge B is greater than the height of the annular ridge A being positioned at annular groove.
The present invention has the following advantages: structure of the present invention is simple, it is convenient, reasonable in design to install and change, adopt the waterproof construction that contactless movable sealing combines with contact static seal, tradition reinforced seal still retains its function, and when preventing motor waterflooding, water can enter motor fast; Increase by a movable sealing in the outside of reinforced seal, effectively anti-sealing, mud, sand and dust motor internal can be entered when motor rotates, reduce the impact on reinforced seal, thus enhance sealing property, available protecting is carried out to reinforced seal, extend the useful life of reinforced seal, motor is dabbling and in waterflooding two kinds of situations, all can ensure that motor is not invaded by foreign matter; And this dynamic sealing device adopts high-abrasive material, not easy to wear, dependable performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
In figure, 1-axle stretch end, 2-bearing, 3-end cap, 4-reinforced seal, 5-dynamic seal ring, 6-static sealing ring, 7-O-ring seals A, 8-O-ring seals B, 9-annular groove, 10-annular ridge A, 11-annular ridge B.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
As shown in Figure 1, the box-like hermetically-sealed construction of group of motors, it comprises axle stretch end 1 and the end cap 3 of rotor, axle stretch end 1 is installed on end cap 3 by bearing 2, reinforced seal 4 is provided with between end cap 3 and axle stretch end 1, movable sealing is provided with between the end cap 3 outside described reinforced seal 4 axially and axle stretch end 1, described movable sealing comprises the dynamic seal ring 5 being arranged at axle stretch end 1 side and the static sealing ring 6 being arranged at end cap 3 side, O-ring seals A7 is provided with between dynamic seal ring 5 and axle stretch end 1, O-ring seals B8 is provided with between static sealing ring 6 and end cap 3, the contact site of dynamic seal ring 5 and static sealing ring 6 is provided with axial labyrinth seal structure.
Described labyrinth seal structure comprises the annular groove 9 being arranged at dynamic seal ring 5 radially-outer surface and the annular ridge A10 being arranged at static sealing ring 6 inner radial surface, and the annular ridge A10 of static sealing ring 6 is arranged in the annular groove 9 of dynamic seal ring 5.
Be positioned at the degree of depth of height higher than the annular groove 9 of dynamic seal ring 5 of the annular ridge A10 of the static sealing ring 6 of the axial sides of described dynamic seal ring 5.
The radially-outer surface being positioned at the dynamic seal ring 5 of the axial sides of described static sealing ring 6 is provided with annular ridge B11, and the height of annular ridge B11 is greater than the height of the annular ridge A10 being positioned at annular groove 9.
O-ring seals A7 can prevent foreign matter from entering into next stage sealing by main shaft, and O-ring seals B8 can prevent foreign matter from entering into next stage sealing by end cap 3.When electric machine main shaft rotates, relative motion between dynamic seal ring 5 and static sealing ring 6, has a minimum gap between the two, can prevent at less wear or when not wearing and tearing various foreign matter from entering secondary seal, thus reach protection.Movable sealing can effectively prevent foreign matter from entering motor from the gap of main shaft and end cap 3.
Claims (2)
1. the box-like hermetically-sealed construction of group of motors, it comprises axle stretch end (1) and the end cap (3) of rotor, axle stretch end (1) is installed on end cap (3) by bearing (2), reinforced seal (4) is provided with between end cap (3) and axle stretch end (1), movable sealing is provided with between the end cap (3) outside described reinforced seal (4) axially and axle stretch end (1), described movable sealing comprises the dynamic seal ring (5) being arranged at axle stretch end (1) side and the static sealing ring (6) being arranged at end cap (3) side, it is characterized in that: between described dynamic seal ring (5) and axle stretch end (1), be provided with O-ring seals A(7), O-ring seals B(8 is provided with) between static sealing ring (6) and end cap (3), the contact site of dynamic seal ring (5) and static sealing ring (6) is provided with axial labyrinth seal structure,
Described labyrinth seal structure comprises the annular groove (9) being arranged at dynamic seal ring (5) radially-outer surface and the annular ridge A(10 being arranged at static sealing ring (6) inner radial surface), the annular ridge A(10 of static sealing ring (6)) be arranged in the annular groove (9) of dynamic seal ring (5);
Be positioned at the annular ridge A(10 of the static sealing ring (6) of the axial sides of described dynamic seal ring (5)) height higher than the degree of depth of the annular groove (9) of dynamic seal ring (5).
2. the box-like hermetically-sealed construction of group of motors according to claim 1, it is characterized in that: the radially-outer surface being positioned at the dynamic seal ring (5) of the axial sides of described static sealing ring (6) is provided with annular ridge B(11), annular ridge B(11) height be greater than the annular ridge A(10 being positioned at annular groove (9)) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328202.4A CN103401341B (en) | 2013-07-31 | 2013-07-31 | The box-like hermetically-sealed construction of group of motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328202.4A CN103401341B (en) | 2013-07-31 | 2013-07-31 | The box-like hermetically-sealed construction of group of motors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103401341A CN103401341A (en) | 2013-11-20 |
| CN103401341B true CN103401341B (en) | 2015-08-05 |
Family
ID=49564911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310328202.4A Expired - Fee Related CN103401341B (en) | 2013-07-31 | 2013-07-31 | The box-like hermetically-sealed construction of group of motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103401341B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882995A (en) * | 2015-06-17 | 2015-09-02 | 东莞市金霸电机制造有限公司 | Double-shaft motor |
| CN105610266B (en) * | 2016-03-23 | 2018-03-30 | 苏州朗高电机有限公司 | A kind of motor splash proof device |
| CN108006078A (en) * | 2017-12-29 | 2018-05-08 | 扬州海通电子科技有限公司 | A kind of dynamic sealing device for ocean engineering power transmission sliding ring |
| CN113765269A (en) * | 2020-06-03 | 2021-12-07 | 上海逸思医疗科技股份有限公司 | Motor sealing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228700A (en) * | 1989-09-11 | 1993-07-20 | Skf Gmbh | Contactless seal |
| CN203352348U (en) * | 2013-07-31 | 2013-12-18 | 东方电气集团东风电机有限公司 | Motor combined-type sealing structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6020740A (en) * | 1983-07-15 | 1985-02-02 | Hitachi Ltd | Structure of bearing of rotary electric machine of vertical shaft type |
-
2013
- 2013-07-31 CN CN201310328202.4A patent/CN103401341B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228700A (en) * | 1989-09-11 | 1993-07-20 | Skf Gmbh | Contactless seal |
| CN203352348U (en) * | 2013-07-31 | 2013-12-18 | 东方电气集团东风电机有限公司 | Motor combined-type sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103401341A (en) | 2013-11-20 |
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Effective date of registration: 20161109 Address after: 614000 Yingbin Road, Leshan hi tech Zone, Sichuan, 9 Patentee after: Dongfang Electric (Leshan) new energy equipment Co., Ltd. Address before: Gou Zhen Qiao Qiao Gou Wutongqiao District Street 614802 Sichuan city of Leshan Province Patentee before: DEC Dongfeng Electric Machinery Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20190731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |