CN204186967U - The split type seal arrangement of loading machine gearbox output terminal - Google Patents
The split type seal arrangement of loading machine gearbox output terminal Download PDFInfo
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- CN204186967U CN204186967U CN201420552880.9U CN201420552880U CN204186967U CN 204186967 U CN204186967 U CN 204186967U CN 201420552880 U CN201420552880 U CN 201420552880U CN 204186967 U CN204186967 U CN 204186967U
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- oil sealing
- face
- axle sleeve
- sealing
- seal
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Abstract
The split type seal arrangement of a kind of loading machine gearbox output terminal, comprise oil sealing base and be installed on the oil sealing in oil sealing base, external diameter and the casing of described oil sealing base connect into piston sealing structure, be provided with axle sleeve, described inner hole of shaft sleeve is socketed on output shaft and is provided with O shape circle and forms piston rod seal, outer round surface and described oil seal lip fitted seal; One of them end face of axle sleeve connects with bearing face, and another end face connects with the end face of flange; Its advantage be sleeve outer circle sealing avoid existing flange excircle sealing by spline beat and spline fitted gap produce coaxality problem on the impact of sealability, avoid part axial dimensional chain integrating error produce O shape enclose do not press tightly the impact of problem on sealability; Axle sleeve quality is little, profile is regular, when clamped one time simultaneously to several boss surfaces quenchings, polishing treatment, can improve manufacturing efficiency, reduces labor strength.
Description
Technical field
The utility model relates to a kind of device carrying out sealing for engineering machinery, particularly the split type seal arrangement of a kind of loading machine gearbox output terminal.
Background technique
The operating environment of the wheeled loader of engineering machinery is relatively more severe, and under Part load, gear box output end can be immersed in the water operation or carry out place transfer; Therefore, the sealing of construction machinery gear box output terminal had higher requirement and challenge.
The sealing configuration of existing loading machine gearbox output terminal, the sealing effect of its axle head O shape circle and oil sealing all has close ties with flange, flange connects with involute splines form with output shaft, there is certain gap, Spielpassung can reduce the precision of flange excircle coaxality, cylindricity, the form and position tolerance of flange excircle guarantees the CCP of oil sealing sealing, and the form and position tolerance factor therefore by output shaft, flange restricts, and the sealing effect of oil sealing not easily ensures.Output shaft assembly part kind is more, dimensional chain relative complex, and by the impact of part axial size cumulative error, axle head O shape circle can not guarantee effective sealing; There is external leakage in various degree in the sealing of axle head, flange excircle, thus causes working medium to waste and environmental pollution.Part processing and assembling aspect, to the requirement of beating, coordinating proposition higher of output shaft external splines and flange internal spline, and spline fitted gap is little causes certain difficulty to assembling, and efficiency of assembling is low, and not quick detachable.
Model utility content
The purpose of this utility model is just to provide a kind of split type seal arrangement of loading machine gearbox output terminal solving flange oil sealing Leakage.
Solution of the present utility model is such:
The split type seal arrangement of a kind of loading machine gearbox output terminal, comprise oil sealing base and be installed on the oil sealing in oil sealing base, external diameter and the casing of described oil sealing base connect into piston sealing structure, it is characterized in that: be provided with axle sleeve, described inner hole of shaft sleeve is socketed on output shaft and is provided with seal ring and forms piston rod seal, outer round surface and described oil seal lip fitted seal; One of them end face of axle sleeve connects with bearing face, and another end face connects with the end face of flange.
The utility model has the advantages that sleeve outer circle sealing avoid the sealing of existing flange excircle beat by spline and the coaxality problem of spline fitted gap generation on the impact of sealability, and simplify flange arrangement, reduce spline requirement on machining accuracy; The piston rod seal of axle sleeve and output shaft, the O shape circle that the integrating error avoiding part axial dimensional chain produce does not press tightly the impact of problem on sealability; Axle sleeve quality is little, profile is regular, when clamped one time simultaneously to several boss surfaces quenchings, polishing treatment, can improve manufacturing efficiency, reduces labor strength.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, external diameter and the casing 4 of oil sealing base 2 connect into piston sealing structure to the utility model, and axle sleeve 8 inner hole sleeve is connected to output shaft 1 and is provided with O-ring seals 7 and forms piston rod seal, axle sleeve 8 outer round surface and described oil sealing 3 lip fitted seal; One of them end face of axle sleeve 8 connects with bearing 6 end face, and another end face connects with the end face of flange 5, and said structure forms a split type sealing configuration.
Oil sealing base 2 cylindrical installs two O shape circles, and form piston sealing structure with casing, inner circle sealer is bonding with oil sealing 3.Axle sleeve 8 outer surface is through precision machining, and oil sealing 3 is close on axle sleeve 8 by interference fit, to reach the effect of sealing.Axle sleeve 8 is closely cooperated by O-ring seals 7 and axle 1, and its axial position is located by bearing 6 and flange 5, and its middle (center) bearing 6 is roller bearing.
In working procedure, output shaft 1 quick rotation, axle sleeve 8 relies on the frictional force of bearing 6 and flange 5 and output shaft synchronous to rotate; Oil sealing base 2 is fixed on casing 4, makes oil sealing 3 keep static.In mechanism's rotary course, section transmission oil impacts on oil sealing 3 through roller bearing 6, and oil seal lip presses down, and adds initial interference, and oil seal lip is reliably fitted on axle sleeve 8, can obtain good sealing effect.
Claims (1)
1. the split type seal arrangement of loading machine gearbox output terminal, comprise oil sealing base (2) and be installed on the oil sealing (3) in oil sealing base (2), external diameter and the casing (4) of described oil sealing base (2) connect into piston sealing structure, it is characterized in that: be provided with axle sleeve (8), described axle sleeve (8) inner hole sleeve is connected to output shaft (1) and is provided with seal ring (7) and forms piston rod seal, outer round surface and described oil sealing (3) lip fitted seal; Axle sleeve (8) one of them end face connects with bearing (6) end face, and another end face connects with the end face of flange (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552880.9U CN204186967U (en) | 2014-09-25 | 2014-09-25 | The split type seal arrangement of loading machine gearbox output terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552880.9U CN204186967U (en) | 2014-09-25 | 2014-09-25 | The split type seal arrangement of loading machine gearbox output terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186967U true CN204186967U (en) | 2015-03-04 |
Family
ID=52618972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420552880.9U Active CN204186967U (en) | 2014-09-25 | 2014-09-25 | The split type seal arrangement of loading machine gearbox output terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896072A (en) * | 2015-05-28 | 2015-09-09 | 苏州市华宁机械制造有限公司 | Reduction gearbox sealing structure |
-
2014
- 2014-09-25 CN CN201420552880.9U patent/CN204186967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896072A (en) * | 2015-05-28 | 2015-09-09 | 苏州市华宁机械制造有限公司 | Reduction gearbox sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170706 Address after: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Patentee after: Liugong Liuzhou transmission parts Co., Ltd. Address before: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Patentee before: Guangxi Liugong Machinery Co., Ltd. |
|
| TR01 | Transfer of patent right |