CN202140574U - Power secondary output oil seal of tractor - Google Patents
Power secondary output oil seal of tractor Download PDFInfo
- Publication number
- CN202140574U CN202140574U CN201120233112U CN201120233112U CN202140574U CN 202140574 U CN202140574 U CN 202140574U CN 201120233112 U CN201120233112 U CN 201120233112U CN 201120233112 U CN201120233112 U CN 201120233112U CN 202140574 U CN202140574 U CN 202140574U
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- Prior art keywords
- oil seal
- secondary output
- oil
- sealing
- tractor
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of a sealing part, in particular relates to a power secondary output oil seal of a tractor, comprising a rubber sealing body with a lip, sealing ribs are arranged on the outer circumference of the rubber sealing body and is in a round structure, two or more than two sealing ribs are arranged, and the problems that the existing rubber oil seal without a supporting framework is untight at the contact position of the outer circumference of the oil seal and a box body, and the friction force of the lip of the oil seal and a shaft is large, the torque and the temperature rise are high are solved, and the disadvantages that oil is leaked or the lip of the oil seal is damaged and the service life is reduced are overcome, and the power secondary output oil seal of the tractor has the advantages of simple and reasonable structure, convenience in processing, low cost, good sealing property and long service life.
Description
Technical field
The utility model belongs to the Sealing field, specifically, relates to the secondary output of a kind of tractor dynamic power oil sealing.
Background technique
The secondary output shaft oil sealing of present tractor dynamic power is selected exoskeletal oil seal structure usually for use; It makes the sealing at this position can only adopt the rubber oil sea of no support frame to realize because adopt sliding bearing to be installed to the mode on the housing seat hole prior to oil sealing, again because the exoskeletal support of cylindrical of rubbery sealed body; Make its oil sealing cylindrical sealing can only lean on the interference of splined pto and oil seal lip to defeat tight oil sealing cylindrical; Thereby realize sealing with contacting point, housing seat hole, like this, if axle is too small with the interference power of oil seal lip; Then can cause oil sealing cylindrical and casing contacting point to seal not consolidation, cause leakage of oil; If axle is excessive with the interference power of oil seal lip, then can cause oil seal lip excessive with frictional force, moment of torsion and the temperature rise of axle, cause oil seal lip to damage and the life-span reduction.
The model utility content
The utility model provides the secondary output of a kind of tractor dynamic power oil sealing; Its existing oil sealing cylindrical of rubber oil sea and casing contacting point that can solve present no support frame seals not consolidation; Or the excessive problem of frictional force, moment of torsion and temperature rise of oil seal lip and axle, overcome the shortcoming that leakage of oil or oil seal lip damage and the life-span reduces.
The technological scheme that the utility model adopted is:
The secondary output of tractor dynamic power oil sealing comprises the rubbery sealed body that is provided with lip, and the cylindrical of said rubbery sealed body is provided with sealed muscle.
In the technological scheme of the utility model, also have following additional technical feature:
Said sealed muscle is a round structure.
The quantity of said sealed muscle is twice or more than the twice.
The quantity of said sealed muscle is three roads.
Compared with prior art; The advantage and the good effect of the utility model are: the secondary output of the tractor dynamic power of the utility model oil sealing; Its existing oil sealing cylindrical of rubber oil sea and casing contacting point that can solve present no support frame seals not consolidation; Or the excessive problem of frictional force, moment of torsion and temperature rise of oil seal lip and axle; Overcome the shortcoming that leakage of oil or oil seal lip damage and the life-span reduces, have simple and reasonable, easy to process, with low cost, good airproof performance and long advantage of life-span.
Description of drawings
Below in conjunction with accompanying drawing and mode of execution the utility model is described further:
Fig. 1 is the former rubber oil sea structural representation that has or not support frame;
Fig. 2 is the former rubber oil sea assembling schematic representation that has or not support frame;
Fig. 3 is the secondary output of the tractor dynamic power oil seal structure schematic representation of the utility model;
Fig. 4 is the secondary output of the tractor dynamic power oil sealing assembling schematic representation of the utility model.
Among the figure, 1 is lip, and 2 is sealed muscle, and 3 is casing, and 4 is the casing outside, and 5 is the cylindrical of rubbery sealed body, and 6 is box inside, and 7 for spline connects pto, and 8 is sliding bearing.
Embodiment
As depicted in figs. 1 and 2 is the former rubber oil sea that has or not support frame; It comprises the rubbery sealed body that is provided with lip 1; Because the cylindrical 5 exoskeletal supports of rubbery sealed body, make the sealing of cylindrical 5 of its rubbery sealed body can only lean on the splined pto 7 and the interference of oil seal lip 1 to defeat the cylindrical 5 of tight rubbery sealed body, thereby realize sealing with contacting point, 3 holes of casing; Like this; If splined pto 7 is too small with the interference power of oil seal lip 1, then can cause the cylindrical 5 of rubbery sealed body to seal not consolidation with casing 3 contacting points, cause leakage of oil; If splined pto 7 is excessive with the interference power of oil seal lip 1, then can cause oil seal lip 1 excessive with frictional force, moment of torsion and the temperature rise of axle, cause oil seal lip 1 to damage and the life-span reduction.As Fig. 3 and shown in Figure 4 be the secondary output of the utility model tractor dynamic power oil sealing, comprise the rubbery sealed body that is provided with lip 1, the cylindrical 5 of said rubbery sealed body is provided with sealed muscle 2; Said sealed muscle 2 is a round structure; The quantity of said sealed muscle 2 is three roads.
Like this when work; The secondary output of the tractor dynamic power of the utility model oil sealing; The area that contacts because of 3 holes of its protruding circular seal muscle 2 and casing reduces; Lubricant oil gets into sliding bearing 8 from box inside 4; Under the less interference power effect of splined pto 7 and oil seal lip 1,3 holes of protruding circular seal muscle 2 and casing can tightly contact realizes sealing, thereby effectively prevents leakage of oil; And can avoid causing frictional force, moment of torsion and temperature rise between oil seal lip 1 and the splined pto 7 excessive, thereby the damage of oil seal lip 1 and the reduction in life-span have been avoided for the interference power that realizes sealing increase splined pto 7 and oil seal lip 1.
Embodiment 2
With embodiment 1, different is that the quantity of said sealed muscle 2 is twice.
With embodiment 1, different is that the quantity of said sealed muscle 2 is four roads.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the mode of execution of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here can't give exhaustive to all mode of executions.Conspicuous variation that every technological scheme that belongs to the utility model is amplified out or change still are in the row of the protection domain of the utility model.
Claims (4)
1. the secondary output of tractor dynamic power oil sealing comprises the rubbery sealed body that is provided with lip (1), and it is characterized in that: the cylindrical of said rubbery sealed body (5) is provided with sealed muscle (2).
2. the secondary output of tractor dynamic power according to claim 1 oil sealing, it is characterized in that: said sealed muscle (2) is a round structure.
3. the secondary output of tractor dynamic power according to claim 1 and 2 oil sealing is characterized in that: the quantity of said sealed muscle (2) is twice or more than the twice.
4. the secondary output of tractor dynamic power according to claim 3 oil sealing, it is characterized in that: the quantity of said sealed muscle (2) is three roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120233112U CN202140574U (en) | 2011-07-04 | 2011-07-04 | Power secondary output oil seal of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120233112U CN202140574U (en) | 2011-07-04 | 2011-07-04 | Power secondary output oil seal of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140574U true CN202140574U (en) | 2012-02-08 |
Family
ID=45551632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120233112U Expired - Fee Related CN202140574U (en) | 2011-07-04 | 2011-07-04 | Power secondary output oil seal of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140574U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747726A (en) * | 2014-07-25 | 2015-07-01 | 栾乔根 | Lip-shaped framework oil seal |
| CN104747717A (en) * | 2014-07-25 | 2015-07-01 | 栾乔根 | Oil seal with framework |
| CN104747718A (en) * | 2014-07-26 | 2015-07-01 | 栾乔根 | Rotating framework sealing ring |
| CN104763810A (en) * | 2014-07-25 | 2015-07-08 | 栾乔根 | Lip-shaped framework seal ring |
-
2011
- 2011-07-04 CN CN201120233112U patent/CN202140574U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747726A (en) * | 2014-07-25 | 2015-07-01 | 栾乔根 | Lip-shaped framework oil seal |
| CN104747717A (en) * | 2014-07-25 | 2015-07-01 | 栾乔根 | Oil seal with framework |
| CN104763810A (en) * | 2014-07-25 | 2015-07-08 | 栾乔根 | Lip-shaped framework seal ring |
| CN104747718A (en) * | 2014-07-26 | 2015-07-01 | 栾乔根 | Rotating framework sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20130704 |