CN203722378U - Novel motor tail shaft rotating-seal structure - Google Patents
Novel motor tail shaft rotating-seal structure Download PDFInfo
- Publication number
- CN203722378U CN203722378U CN201320841940.4U CN201320841940U CN203722378U CN 203722378 U CN203722378 U CN 203722378U CN 201320841940 U CN201320841940 U CN 201320841940U CN 203722378 U CN203722378 U CN 203722378U
- Authority
- CN
- China
- Prior art keywords
- fan blade
- motor
- rear end
- end cap
- tail shaft
- 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
Links
- 230000013011 mating Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 16
- 239000000428 dust Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 239000003595 mist Substances 0.000 abstract 2
- 238000012856 packing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A novel motor tail shaft rotating-seal structure comprises a motor tail shaft taken as a rotor, and a fan blade. The motor tail shaft is mounted inside a cabinet of a motor through a deep groove ball bearing, and the tail end of the motor tail shaft is equipped with a rear end cap. The fan blade is mounted on the motor tail shaft. The surface, facing the fan blade, of the rear end cap is provided with at least one annular groove. The surface, facing the rear end cap, of the fan blade is provided with an annular boss matched with the annular groove. The beneficial effects of the utility model are that 1, certain air pressure is formed between the fan blade and the rear end cap when the fan blade rotates so that dust and water mist are prevented from entering; 2, the design of the groove increases the internal contact protection area of the motor; 3, the dust and water mist moves outwards under the effect of the centrifugal force when the fan blade rotates; and 4, by employing a groove and boss combination mode, the defects of a traditional sealing mode are prevented and components are saved at the same time as the sealing effect can be achieved without adding sealing rings, so that the cost of the motor is lowered.
Description
Technical field
The utility model relates to a kind of New-type electric machine tailing axle rotary seal structure.
Background technology
Existing motor tailing axle place hermetically-sealed construction adopts lip-type packing or groove to add O RunddichtringO sealing means.The tailing axle place of conventional motor is sealed into ring structure, and sealing ring and electric machine main shaft fit tightly, good sealing effect, but produce higher mechanical loss, and reducing the efficiency of motor, sealing ring is easy to wear simultaneously, reaches after certain useful life, needs to change sealing ring.
The shortcoming of sealing ring hermetically-sealed construction is 1, sealing ring and electric machine main shaft tight fit, while causing electric machine main shaft to rotate, produces higher mechanical loss, the efficiency of reduction motor.2, sealing ring has certain useful life, after long-time use, needs to change, and just can reach original sealing effectiveness.3, the use of sealing ring has increased the manufacturing cost of motor.
Summary of the invention
The utility model is large for current motor tailing axle place hermetically-sealed construction loss, electric efficiency is low, useful life is short, and the problem that manufacturing cost is high, has proposed that a kind of loss is little, the New-type electric machine tailing axle rotary seal structure of good sealing effect, reduction manufacturing cost.
New-type electric machine tailing axle rotary seal structure described in the utility model, comprise motor tailing axle, fan blade as rotor, described motor tailing axle is arranged on by deep groove ball bearing in the casing of motor, and described motor tail the tip of the axis is installed rear end cap, described fan blade is arranged on motor tailing axle, it is characterized in that: described rear end cap is provided with at least one ring-shaped groove towards the surface of fan blade, described fan blade is provided with the annular boss mating with described ring-shaped groove towards the surface of rear end cap.
Described ring-shaped groove is centered by the central shaft of rear end cap.
Described rear end cap is provided with the coaxial ring-shaped groove of two circles towards the surface of fan blade.
The beneficial effects of the utility model are: when 1, fan blade rotates and between rear end cap, form certain air pressure, stop entering of dust and water smoke; 2, trench design has increased motor internal contact pretective acreage; 3, fan blade when rotation, dust and water smoke by centrifugal force to external movement; 4, adopt the mode that matches with boss of groove, avoided the defect of conventional seals mode, saved parts simultaneously, do not need additional sealing ring can reach sealing effectiveness, reduced motor cost.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram of rear end cap of the present utility model.
Fig. 2 is the front view of rear end cap of the present utility model.
Fig. 3 is the three-dimensional structure diagram of fan blade of the present utility model.
Fig. 4 is the front view of fan blade of the present utility model.
Fig. 5 is installation diagram of the present utility model.
Fig. 6 is that (wherein, 1 ' is motor tailing axle to traditional motor tailing axle lip-type packing sealed structure chart; 2 ' is fan blade; 11 ' is deep groove ball bearing; 12 ' is rear end cap; 13 ' is lip-type packing).
Fig. 7 be traditional motor tailing axle O RunddichtringO sealed structure chart (wherein, 1 " be motor tailing axle; 2 " be fan blade; 11 " be deep groove ball bearing; 12 " be rear end cap; 13 " be lip-type packing).
Embodiment
Further illustrate the utility model below in conjunction with accompanying drawing
With reference to accompanying drawing:
New-type electric machine tailing axle rotary seal structure described in the utility model, comprise motor tailing axle 1, fan blade 2 as rotor, described motor tailing axle 1 is arranged on by deep groove ball bearing 11 in the casing of motor, and the end of described motor tailing axle 1 is installed rear end cap 12, described fan blade 2 is arranged on motor tailing axle 1, described rear end cap 12 is provided with at least one ring-shaped groove 121 towards the surface of fan blade 2, described fan blade 2 is provided with the annular boss 21 mating with described ring-shaped groove 121 towards the surface of rear end cap 12.
Described ring-shaped groove 121 is centered by the central shaft of rear end cap 12.
Described rear end cap 12 is provided with the coaxial ring-shaped groove of two circles 121 towards the surface of fan blade 2.
Content described in this specification embodiment is only enumerating of way of realization to utility model design; protection range of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection range of the present utility model also comprises that those skilled in the art conceive the equivalent technologies means that can expect according to the utility model.
Claims (3)
1. New-type electric machine tailing axle rotary seal structure, comprise motor tailing axle, fan blade as rotor, described motor tailing axle is arranged on by deep groove ball bearing in the casing of motor, and described motor tail the tip of the axis is installed rear end cap, described fan blade is arranged on motor tailing axle, it is characterized in that: described rear end cap is provided with at least one ring-shaped groove towards the surface of fan blade, described fan blade is provided with the annular boss mating with described ring-shaped groove towards the surface of rear end cap.
2. New-type electric machine tailing axle rotary seal structure as claimed in claim 1, is characterized in that: described ring-shaped groove is centered by the central shaft of rear end cap.
3. New-type electric machine tailing axle rotary seal structure as claimed in claim 2, is characterized in that: described rear end cap is provided with the coaxial ring-shaped groove of two circles towards the surface of fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841940.4U CN203722378U (en) | 2013-12-18 | 2013-12-18 | Novel motor tail shaft rotating-seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841940.4U CN203722378U (en) | 2013-12-18 | 2013-12-18 | Novel motor tail shaft rotating-seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722378U true CN203722378U (en) | 2014-07-16 |
Family
ID=51161501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320841940.4U Expired - Lifetime CN203722378U (en) | 2013-12-18 | 2013-12-18 | Novel motor tail shaft rotating-seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681809A (en) * | 2017-11-22 | 2018-02-09 | 杭州三相科技有限公司 | Mowing motor applicable sealing device, mowing motor and hay mover |
| CN107888010A (en) * | 2017-11-17 | 2018-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor sealing structure and motor |
-
2013
- 2013-12-18 CN CN201320841940.4U patent/CN203722378U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888010A (en) * | 2017-11-17 | 2018-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor sealing structure and motor |
| WO2019095981A1 (en) * | 2017-11-17 | 2019-05-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor sealing structure and motor |
| CN107888010B (en) * | 2017-11-17 | 2019-11-26 | 珠海格力电器股份有限公司 | Motor sealing structure and motor |
| US11289968B2 (en) | 2017-11-17 | 2022-03-29 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Motor sealing structure and motor |
| CN107681809A (en) * | 2017-11-22 | 2018-02-09 | 杭州三相科技有限公司 | Mowing motor applicable sealing device, mowing motor and hay mover |
| CN107681809B (en) * | 2017-11-22 | 2023-12-05 | 杭州三相科技有限公司 | Sealing device suitable for mowing motor, mowing motor and mowing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |