CN208153697U - The shaft sealer of speed reducer - Google Patents
The shaft sealer of speed reducer Download PDFInfo
- Publication number
- CN208153697U CN208153697U CN201820715434.3U CN201820715434U CN208153697U CN 208153697 U CN208153697 U CN 208153697U CN 201820715434 U CN201820715434 U CN 201820715434U CN 208153697 U CN208153697 U CN 208153697U
- Authority
- CN
- China
- Prior art keywords
- sealing shroud
- cylinder
- speed reducer
- output shaft
- cabinet
- 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
Links
Abstract
A kind of shaft sealer of speed reducer comprising cylinder（3）, the flange of cylinder right end and the cabinet of speed reducer（2）It is sealedly and fixedly connected, the output shaft of speed reducer（1）It is stretched out from cylinder, the sealing shroud flexible of tire-like is equipped between cylinder and output shaft（4）, pressing sleeve is equipped in the left side of sealing shroud（6）, the flanged joint of flange and cylinder left end on pressing sleeve, the cavity of sealing shroud（5）Top seal be connected with flowline（7）, flowline puts in cabinet, cavity（5）Lower seal be connected with oil inlet pipe（8）, oil inlet pipe puts in cabinet and connect with oil pump.The characteristics of this sealing device is, the inlet pressure of sealing shroud cavity is greater than outlet pressure, the expansion of its pressure official post sealing shroud, it is close to the inner ring of sealing shroud with output shaft, when sealing shroud inner ring is worn, pressure in cavity remains to expand sealing shroud, makes to keep sealing between the inner ring of sealing shroud and output shaft.
Description
Technical field
The present invention relates to one kind to turn shaft seal, which is used to prevent the machine oil in box body of speed reducer along defeated
Shaft or input shaft leak out.
Background technique
The bottom of box body of speed reducer is marked with machine oil, and it is enterprising that machine oil is injected in rotatable parts by oil pipe by the intracorporal oil pump of case
Row lubrication, to reduce the friction between it.To prevent machine oil along output shaft（Or input shaft）It leaks out, in cabinet and output shaft
Between be equipped with seal member, such as sealing shroud, sealing ring, output shaft can be such that seal member wears, make under sealing performance when rotating
Drop, at this moment needs replacing seal member.Replacement seal member, which will be shut down, will also dismantle correlated parts, very inconvenient.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of shaft sealer of speed reducer, which can be automatic
The abrasion of compensation sealing part, extends the replacement cycle of seal member.
The technical scheme is that a kind of shaft sealer of speed reducer comprising cylinder 3, the flange of cylinder right end
It is sealedly and fixedly connected with the cabinet 2 of speed reducer, the output shaft 1 of speed reducer is stretched out from cylinder, characterized in that in cylinder and output
It is equipped with the sealing shroud flexible 4 of tire-like between axis, is equipped with pressing sleeve 6 in the left side of sealing shroud, the flange and cylinder on pressing sleeve are left
The top seal of the flanged joint at end, the cavity 5 of sealing shroud is connected with flowline 7, and flowline is put in cabinet, under cavity 5
Portion is sealedly connected with oil inlet pipe 8, and oil inlet pipe puts in cabinet and connect with oil pump.
The characteristics of this shaft sealer is that the inlet pressure of sealing shroud cavity is greater than outlet pressure, pressure official post sealing
Set expansion, is close to the inner ring of sealing shroud with output shaft, when sealing shroud inner ring is worn, the pressure in cavity remains to make to seal
Set expansion makes to keep sealing between the inner ring of sealing shroud and output shaft.Compared with prior art, this shaft sealer utilizes oil pump
The self-compensating pressure sealing part abrasion of oil transportation, extends the replacement cycle of seal member.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Attached drawing mark respectively indicates：1- output shaft, 2- cabinet, 3- cylinder, 4- sealing shroud, 5- cavity, 6- pressing sleeve, 7- are fuel-displaced
Pipe, 8- oil inlet pipe, 9- box cover, 10- oil pump, 11- pipe fitting.
Specific embodiment
Now in conjunction with Detailed description of the invention a specific embodiment of the invention.
A kind of shaft sealer of speed reducer comprising cylinder 3, the flange of cylinder right end and the cabinet 2 of speed reducer seal
It is fixedly connected, the output shaft 1 of speed reducer is stretched out from cylinder, characterized in that equipped with tire-like between cylinder and output shaft
Sealing shroud 4 flexible, sealing shroud is made of rubber, and is equipped with pressing sleeve 6 in the left side of sealing shroud, the inner circle and output shaft of pressing sleeve match
It closes, the flanged joint of flange and cylinder left end on pressing sleeve, the top seal of the cavity 5 of sealing shroud is connected with flowline 7, fuel-displaced
Pipe is put in cabinet, and the lower seal of cavity 5 is connected with oil inlet pipe 8, and oil inlet pipe puts in cabinet and connect with oil pump 10.
The installation steps of shaft sealer are that cylinder connect with box sealing → is set on the output shaft sealing shroud, and incites somebody to action
Oil inlet pipe and flowline pierce into cabinet → and pressing sleeve goes out with cylinder connection → oil inlet pipe is connect by pipe fitting 11 with oil pump →
Oil pipe is connect with the oil pipeline of cabinet connection → box cover 9 with box sealing by pipe fitting 11.
Its sealing principle is that when speed reducer rotates, operation of oil pump, the machine oil that oil pump pumps out first passes through sealing shroud again through oil transportation
Pipeline（It is not drawn in attached drawing）It send to rotatable parts, there is the machine oil in sealing shroud cavity certain pressure to make sealing shroud along diameter
To expansion, the inner ring of sealing shroud is close to output shaft；When sealing shroud inner ring is worn, the pressure of machine oil remains to make sealing shroud edge
Radial dilatation is able to maintain sealing performance as long as sealing shroud is not worn.The shaft sealer is similarly suitable to be mounted on speed reducer
Input shaft.
This shaft sealer realizes sealing using the pressure of oil pump feed so that structure is simple, sealing shroud ground after more
It changes and also facilitates.
Claims (1)
1. a kind of shaft sealer of speed reducer comprising cylinder（3）, the flange of cylinder right end and the cabinet of speed reducer（2）It is close
Envelope is fixedly connected, the output shaft of speed reducer（1）It is stretched out from cylinder, characterized in that tire is equipped between cylinder and output shaft
The sealing shroud flexible of shape（4）, pressing sleeve is equipped in the left side of sealing shroud（6）, the flange of flange and cylinder left end on pressing sleeve connects
It connects, the cavity of sealing shroud（5）Top seal be connected with flowline（7）, flowline puts in cabinet, cavity（5）Lower part it is close
Envelope is connected with oil inlet pipe（8）, oil inlet pipe puts in cabinet and connect with oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820715434.3U CN208153697U (en) | 2018-05-15 | 2018-05-15 | The shaft sealer of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820715434.3U CN208153697U (en) | 2018-05-15 | 2018-05-15 | The shaft sealer of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153697U true CN208153697U (en) | 2018-11-27 |
Family
ID=64390780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820715434.3U Expired - Fee Related CN208153697U (en) | 2018-05-15 | 2018-05-15 | The shaft sealer of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208153697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374882A (en) * | 2018-05-15 | 2018-08-07 | 高玉琴 | The shaft sealer of speed reducer |
-
2018
- 2018-05-15 CN CN201820715434.3U patent/CN208153697U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374882A (en) * | 2018-05-15 | 2018-08-07 | 高玉琴 | The shaft sealer of speed reducer |
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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 |
Granted publication date: 20181127 Termination date: 20200515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |