CN207378118U - A kind of planetary gear reduction box - Google Patents
A kind of planetary gear reduction box Download PDFInfo
- Publication number
- CN207378118U CN207378118U CN201721326285.3U CN201721326285U CN207378118U CN 207378118 U CN207378118 U CN 207378118U CN 201721326285 U CN201721326285 U CN 201721326285U CN 207378118 U CN207378118 U CN 207378118U
- Authority
- CN
- China
- Prior art keywords
- planetary gear
- reduction box
- input shaft
- oil
- outside framework
- 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 With Elastic Sealing Lips (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a kind of planetary gear reduction box, including：Input shaft, output shaft, sun gear and it is arranged on the planetary gear engaged on planet carrier with sun gear, each planetary gear correspondence is sleeved in planetary gear shaft, multiple planetary gears share a gear ring, the input shaft is mounted in input shaft bearing and is connected with motor, two oppositely-arranged outside framework oil seals on input shaft are installed, the oil that motor comes out is made not channel in planetary gear reduction box.The utility model makes original 1 outside framework oil seal structure into two oppositely-arranged outside framework oil seal structures, the both ends of two oil sealings can bear certain pressure, so that the oil in motor out is returned to eventually by oil return hole without channeling in reduction box in motor, solves the problems, such as planetary reduction box oil leak.
Description
Technical field
The utility model is related to reduction box technical field more particularly to a kind of planetary gear reduction box.
Background technology
Using an outside framework oil seal, outside framework oil seal bears pressure end (lip) direction for the input shaft connection place of general reduction box
The inside bearing.When the continuous high load capacity of hydraulic motor works, oil sealing bears high axial oil pressure and acts on for a long time, and oil sealing outer end
Very high pressure cannot be born, the oil that motor comes out just has been channeled in reduction box by oil seal lip, makes oil level mistake in reduction box
High and oil leak.
Utility model content
The purpose of this utility model is to provide a kind of planetary gear reduction box, using two oppositely-arranged skeleton oil
Envelope, solves the problems, such as planetary reduction box oil leak.
For this purpose, the utility model uses following technical scheme：
A kind of planetary gear reduction box, including：It input shaft, output shaft, sun gear and is arranged on planet carrier and sun gear
The planetary gear of engagement, each planetary gear correspondence are sleeved in planetary gear shaft, and multiple planetary gears share a gear ring,
The input shaft is mounted in input shaft bearing and is connected with motor, and two oppositely-arranged outside framework oil seals are installed on input shaft.
Wherein, the lip of two outside framework oil seals is oppositely arranged.
Wherein, the outside framework oil seal includes " L " sections shell and the rubbery sealed body being coated on iron-clad lateral surface, the rubber
Glue seal has leaf tail, and spring ditch is provided on the inside of leaf tail, self-tightening helical spring is housed in spring ditch, the rubbery sealed body is remote
From being provided with dustproof lip on leaf tail direction.
The beneficial effects of the utility model：A kind of planetary gear reduction box makes original 1 outside framework oil seal structure into two
A oppositely-arranged outside framework oil seal structure, the both ends of two oil sealings can bear certain pressure, so that in motor out
Oil is returned to eventually by oil return hole without channeling in reduction box in motor, solves the problems, such as planetary reduction box oil leak.
Description of the drawings
Fig. 1 is 2 outside framework oil seals of the utility model and reduction box mounting structure schematic diagram；
Fig. 2 is the oppositely-arranged structure diagram of 2 outside framework oil seals of the utility model；
Fig. 3 is the outside framework oil seal structure diagram of the utility model.
Specific embodiment
With reference to Fig. 1 the technical solution of the utility model is further illustrated to Fig. 3 and by specific embodiment.
A kind of planetary gear reduction box, including：It input shaft 5, output shaft 1, sun gear 3 and is arranged on planet carrier and the sun
The planetary gear 2 of 3 engagement of wheel, each planetary gear 2 correspondence are sleeved in planetary gear shaft, and multiple planetary gears 2 share one
A gear ring 13, the input shaft 5 are mounted in input shaft bearing 12, and be connecteds with motor, two are installed on input shaft 5 in opposite directions and
The outside framework oil seal 4 put makes the oil that motor comes out not channel in planetary gear reduction box.
In the present embodiment, the lip of two outside framework oil seals 4 is oppositely arranged so that the both ends of two outside framework oil seals 4 are all
Certain pressure can be born, the oil in motor out is made to be returned to eventually by oil return hole without channeling in reduction box in motor,
Solves the problems, such as planetary reduction box oil leak.
In the present embodiment, the outside framework oil seal 4 includes " L " sections shell 6 and the rubber seal being coated on 6 lateral surface of iron-clad
Body 11, the rubbery sealed body 11 have leaf tail 9, and 9 inside of leaf tail is provided with spring ditch 10, self-tightening spiral bullet is housed in spring ditch 10
Spring 8, the rubbery sealed body 11 on 9 direction of leaf tail away from being provided with dustproof lip 7.The outside framework oil seal structure can be ensured that sealing effect
Fruit meets requirement.
More than content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With new thought, there will be changes, this specification content should not be construed as in specific embodiments and applications
Limitation to the utility model.
Claims (3)
1. a kind of planetary gear reduction box, including：Input shaft, output shaft, sun gear and being arranged on planet carrier are nibbled with sun gear
The planetary gear of conjunction, each planetary gear correspondence are sleeved in planetary gear shaft, and multiple planetary gears share a gear ring,
It is characterized in that, the input shaft is mounted in input shaft bearing and is connected with motor, and two oppositely-arranged bones are installed on input shaft
Frame oil sealing.
2. planetary gear reduction box according to claim 1, which is characterized in that the lip of two outside framework oil seals is opposite
It sets.
3. planetary gear reduction box according to claim 1 or 2, which is characterized in that the outside framework oil seal includes " L " sections
Shell and the rubbery sealed body being coated on iron-clad lateral surface, the rubbery sealed body have leaf tail, spring ditch are provided on the inside of leaf tail,
Equipped with self-tightening helical spring in spring ditch, the rubbery sealed body on leaf tail direction away from being provided with dustproof lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721326285.3U CN207378118U (en) | 2017-10-16 | 2017-10-16 | A kind of planetary gear reduction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721326285.3U CN207378118U (en) | 2017-10-16 | 2017-10-16 | A kind of planetary gear reduction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207378118U true CN207378118U (en) | 2018-05-18 |
Family
ID=62338455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721326285.3U Expired - Fee Related CN207378118U (en) | 2017-10-16 | 2017-10-16 | A kind of planetary gear reduction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207378118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631008A (en) * | 2017-10-16 | 2018-01-26 | 镇江市金鼎变速箱有限公司 | A kind of planetary gear reduction box |
-
2017
- 2017-10-16 CN CN201721326285.3U patent/CN207378118U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631008A (en) * | 2017-10-16 | 2018-01-26 | 镇江市金鼎变速箱有限公司 | A kind of planetary gear reduction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20211016 |