CN2623974Y - Double skeletons sealing apparatus at decelerator shaft ends - Google Patents
Double skeletons sealing apparatus at decelerator shaft ends Download PDFInfo
- Publication number
- CN2623974Y CN2623974Y CN 03228936 CN03228936U CN2623974Y CN 2623974 Y CN2623974 Y CN 2623974Y CN 03228936 CN03228936 CN 03228936 CN 03228936 U CN03228936 U CN 03228936U CN 2623974 Y CN2623974 Y CN 2623974Y
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- CN
- China
- Prior art keywords
- oil
- seal
- rubber
- oil seals
- utility
- 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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- Sealing Devices (AREA)
- General Details Of Gearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a reducer shaft end double-skeleton sealing device. The lips mouth of the two rubber oil seals toward to the inside of the reducer. A spacer bush which is used for separating the two rubber oil seals is arranged between the two rubber oil seals. A plurality of oil inlets are arranged on the spacer bush. A cavity is shaped between the two oil seals to input lubricant grease with pressure. The utility model adopts an oil seal structure which can fully lubricate the two rotating shaft skeleton rubber oil seals in the shaft end of the prior reducer, so that has the advantage of double seal. The lubricating grease between the two oil seals can fully lubricate the inner oil seal and the outer oil seal. With functions of not only preventing the lubricate grease from exuding, and also preventing exterior impurity, water and dust from entering into the cavity of the two oil seals, The outer oil seal protects the inner oil seal and prolongs the useful time of the inner oil seal. The utility model is applied to most ports and wharves environment.
Description
Technical field
The utility model relates to the goliath retarder, particularly a kind of two reinforced seal devices of retarder axle head.
Background technique
Goliath with retarder in Seal Design be this retarder key of success.The sealing means of retarder axle head adopts array structure down usually:
1. labyrinth sealing.The destabilizing factor of this kind sealing effect is more, and it is relevant with many factors, as oil viscosity, oil temperature, rotating speed, level height, arrangement of gears form, or the like.
2. single rubber framework grease seal sealing.If this kind sealing configuration is when being applied to salt fog or dust atmosphere, and oil sealing is easy to wear, and working life is shorter.
3. two rubber framework grease seal sealing configurations commonly used.As shown in Figure 1, this kind sealing structure of shaft end adopts two lips to abut against together towards oil sealing 1, two oil sealing 1 in the speed reducer, or only stays a little space, does not have any packing therebetween.Mutual friction mutually between inside and outside two oil sealings of this structure and the running shaft, the lip of oil sealing is more easy to wear, and working life is not long.
Summary of the invention
Task of the present utility model provides the two reinforced seal devices of a kind of improved retarder axle head, and it has solved existing retarder axle head and has sealed the problem that existing oil sealing is easy to wear, working life is short.
The technical solution of the utility model is as follows:
The two reinforced seal devices of a kind of retarder axle head, the lip of two rubber oil seas is in speed reducer, be provided with one between described two rubber oil seas and make its spacer that separates, spacer is provided with several oil inlet holes, forms cavity has pressure with injection lubricant grease between two oil sealings.
The utility model adopts the sealing configuration that two running shaft skeleton rubber oil sealings can both sufficient lubrication at the axle head of existing retarder; advantage with double seal; but inside and outside two oil sealings of the lubricant grease sufficient lubrication between two oil sealings; outer oil seal both can be used as and had prevented that lubricant grease from oozing out; can prevent that again introduced contaminants, water or dust etc. from immersing the cavity between two oil sealings; thereby the protection inner oil seal, the working life of prolongation inner oil seal.The two skeleton rubber oil sealing sealing devices of retarder axle head of the present utility model are applicable to most of harbours, harbour environment.
Description of drawings
Fig. 1 is the schematic representation of existing two rubber framework grease seal sealing configurations.
Fig. 2 is the structural representation of the two reinforced seal devices of a kind of retarder axle head of the present utility model.
Embodiment
Referring to Fig. 2, the utility model is the two reinforced seal devices of a kind of retarder axle head, and the lip of two rubber oil seas 1 is in speed reducer.
Be provided with a spacer 21 of two rubber oil sea and make two rubber oil seas 1 separately, spacer 2 is provided with several oil inlet holes.1 on two oil sealings are formed with certain cavity 4, inject the lubricant grease with certain pressure by fuel filler neck 3, and lubricant grease enters in the cavity 4 of 1 on two oil sealings from oil inlet hole, plays the effect of sufficient lubrication two oil sealings 1 thus.
Claims (1)
1. two reinforced seal devices of a retarder axle head, the lip of two rubber oil seas is characterized in that in speed reducer, is provided with a spacer that it is separated between described two rubber oil seas, spacer is provided with several oil inlet holes, forms cavity has pressure with injection lubricant grease between two oil sealings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228936 CN2623974Y (en) | 2003-02-21 | 2003-02-21 | Double skeletons sealing apparatus at decelerator shaft ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228936 CN2623974Y (en) | 2003-02-21 | 2003-02-21 | Double skeletons sealing apparatus at decelerator shaft ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2623974Y true CN2623974Y (en) | 2004-07-07 |
Family
ID=34247188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03228936 Expired - Lifetime CN2623974Y (en) | 2003-02-21 | 2003-02-21 | Double skeletons sealing apparatus at decelerator shaft ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2623974Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879499A (en) * | 2015-05-04 | 2015-09-02 | 西安近代化学研究所 | Dustproof sealing device |
| CN106704592A (en) * | 2016-12-13 | 2017-05-24 | 江苏联冠机械有限公司 | Shaft end sealing device for main shaft of mixer |
-
2003
- 2003-02-21 CN CN 03228936 patent/CN2623974Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879499A (en) * | 2015-05-04 | 2015-09-02 | 西安近代化学研究所 | Dustproof sealing device |
| CN104879499B (en) * | 2015-05-04 | 2018-01-23 | 西安近代化学研究所 | A kind of dust-proof sealing device |
| CN106704592A (en) * | 2016-12-13 | 2017-05-24 | 江苏联冠机械有限公司 | Shaft end sealing device for main shaft of mixer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI ZHENHUA HEAVY INUDSTRY ( GROUP ) CO., LTD Free format text: FORMER NAME: SHANGHAI ZHENHUA HARBOUR MACHINERY (GROUP) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 3470 South Shanghai Road, Pudong, please. Zip code: 200125 Patentee after: Shanghai Zhenhua Heavy Industry Co., Ltd. Address before: No. 3470 South Shanghai Road, Pudong, please. Zip code: 200125 Patentee before: Shanghai Zhenhua Port Machinery (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130221 Granted publication date: 20040707 |