CN202381695U - Combined muddy-water-proof oil seal for large-sized loading machine - Google Patents

Combined muddy-water-proof oil seal for large-sized loading machine Download PDF

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Publication number
CN202381695U
CN202381695U CN2011203524176U CN201120352417U CN202381695U CN 202381695 U CN202381695 U CN 202381695U CN 2011203524176 U CN2011203524176 U CN 2011203524176U CN 201120352417 U CN201120352417 U CN 201120352417U CN 202381695 U CN202381695 U CN 202381695U
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CN
China
Prior art keywords
oil seal
lip
oil
rubber
seal
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
Application number
CN2011203524176U
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Chinese (zh)
Inventor
唐忠华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao TKS Sealing Industry Co Ltd
Original Assignee
Qingdao TKS Sealing Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao TKS Sealing Industry Co Ltd filed Critical Qingdao TKS Sealing Industry Co Ltd
Priority to CN2011203524176U priority Critical patent/CN202381695U/en
Application granted granted Critical
Publication of CN202381695U publication Critical patent/CN202381695U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a sealing piece, in particular to a combined muddy-water-proof oil seal for a large-sized loading machine. The oil seal consists of an outer oil seal and an inner oil seal, wherein the outer oil seal is positioned on the outer side of the inner oil seal; the outer oil seal comprises an outer oil seal framework, an outer oil seal spring and an outer oil seal sealing lip; the outer oil seal sealing lip comprises an outer oil seal main sealing lip, an outer oil seal radial secondary lip and an outer oil seal axial secondary lip; the inner oil seal comprises an inner oil seal framework and an inner oil seal rubber body which is in interference fit with a revolving shaft; the outer oil seal main sealing lip, the outer oil seal radial secondary lip and the outer oil seal axial secondary lip are in interference with the inner oil seal framework; the annular bottom of the outer oil seal is provided with an outer oil seal bottom convex rib; the top of the inner oil seal framework is provided with an inner oil seal framework bending part; the inner oil seal rubber body is positioned on the inner surface of the inner oil seal framework; inner oil seal body rubber axial convex ribs are arranged on the annular inner surface of the inner oil seal rubber body at intervals; and inner oil seal body rubber radial convex ribs are arranged below the inner oil seal body rubber axial convex ribs.

Description

The anti-muddy water oil sealing of large-duty loader combination
Technical field
The utility model relates to a kind of Sealing, the anti-muddy water oil sealing of especially a kind of large-duty loader combination.
Background technique
For large-duty loader, particularly conditions such as coal, harbour, engineering railroad bridge than rugged environment in the large-duty loader of operation, the vehicle bridge hub oil seal that directly contacts with the outside of its use is generally the oil sealing of Type B and FB type structure.Because large-duty loader operation in the more and moist working environment of dust for a long time, so running shaft gets rusty easily, and causes the oil sealing ageing failure, and oil accident is many, has had a strong impact on the working efficiency and the benefit of loader.
The model utility content
The purpose of the utility model is to have proposed the anti-muddy water oil sealing of a kind of large-duty loader combination, and this oil sealing can prevent the erosion of introduced contaminantses such as muddy water, silt, dust effectively, has prolonged the working life of oil sealing, good sealing effect.
The utility model is that the technological scheme below adopting realizes: the anti-muddy water oil sealing of a kind of large-duty loader combination; Form by outer oil seal and inner oil seal; Outer oil seal is positioned at the outside of inner oil seal, and outer oil seal comprises outer oil seal skeleton, outer oil seal spring and outer oil seal sealing lip, and the outer oil seal sealing lip comprises radially secondary lip of outer oil seal primary seal lip, outer oil seal and the axial secondary lip of outer oil seal; Inner oil seal comprises the inner oil seal skeleton and is the inner oil seal rubber body of interference fit with running shaft; Be interference fit between the radially secondary lip of outer oil seal primary seal lip, outer oil seal, the axial secondary lip of outer oil seal and the inner oil seal skeleton, wherein, be provided with outer oil seal bottom convex tendon along the circular bottom part of outer oil seal; The top of inner oil seal skeleton is provided with inner oil seal skeleton bending part; The inner oil seal rubber body is positioned at the internal surface of inner oil seal skeleton, at interval the axial convex tendon of inner oil seal body rubber is set on the annular inner surface of inner oil seal rubber body, and the below of the axial convex tendon of inner oil seal body rubber is provided with radially convex tendon of inner oil seal body rubber.
In the utility model, radially convex tendon is along the ring surface setting of inner oil seal rubber body for said inner oil seal body rubber, and inner oil seal body rubber radially convex tendon is provided with one at least.
Said outer oil seal skeleton adopts half rubber-wrapping structure, and encapsulate partly is provided with ripple, and the outer surface of outer oil seal skeleton is that the fitting surface between outer oil seal skeleton and the seat hole is made up of outer oil seal rubber body corrugated surface and outer oil seal skeleton fitting surface.Outer oil seal rubber body corrugated surface has guaranteed the outside seal of oil sealing, and outer oil seal skeleton fitting surface has improved the installation tensile strength between oil sealing and the seat hole.
Between the radially secondary lip of said outer oil seal primary seal lip and outer oil seal, between the radially secondary lip of outer oil seal and the axial secondary lip of outer oil seal and in the space between radially secondary lip of outer oil seal and the outer oil seal bottom convex tendon lubricant oil can be set, thereby reduce the friction between outer oil seal sealing lip and the inner oil seal skeleton.
The beneficial effect of the utility model is: at first, convex tendon is set, both can have played the effect of installing and locating through bottom at outer oil seal, also can reduce and the inner oil seal skeleton between frictional force, can also play dustproof effect in addition; The second, inner oil seal skeleton bending part can play the effect of oil baffle disc, reduces the interference to outer oil seal master lip of lubricant oil and impurity thereof; The 3rd, through the axial convex tendon of inner oil seal body rubber and inner oil seal body rubber convex tendon radially, further strengthened the tightness between interior seal and the running shaft.In a word, this oil sealing has solved the erosion of impurity such as muddy water, silt, dust effectively, has prolonged the working life of oil sealing, has improved the sealing effect and the stability of oil sealing.
Description of drawings
Fig. 1 is the half sectional view of the utility model.
Among the figure: 1 outer oil seal skeleton; 2 outer oil seal springs; 3 inner oil seal skeleton bending parts; 4 outer oil seal master lips; 5 inner oil seal skeletons; 6 inner oil seal rubber axis are to convex tendon; 7 inner oil seal rubber are convex tendon radially; 8 inner oil seal rubber body; The radially secondary lip of 9 outer oil seals; The axial secondary lip of 10 outer oil seals; 11 outer oil seals bottom convex tendon; 12 outer oil seal rubber body corrugated surfaces; 13 outer oil seal skeleton fitting surfaces.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the anti-muddy water oil sealing of the described large-duty loader combination of the utility model.This oil sealing is made up of outer oil seal and inner oil seal, and outer oil seal is positioned at the outside of inner oil seal.Wherein outer oil seal comprises outer oil seal skeleton 1, outer oil seal spring 2 and outer oil seal sealing lip, and the outer oil seal sealing lip comprises radially secondary lip 9 of outer oil seal primary seal lip, outer oil seal and the axial secondary lip 10 of outer oil seal.Inner oil seal comprises inner oil seal skeleton 5 and inner oil seal rubber body 8.Outer oil seal spring 2 is positioned at the annular outboard of outer oil seal primary seal lip, and the elastic force through in the outer oil seal spring 2 makes between outer oil seal master lip 4 and the inner oil seal skeleton 5 to be interference fit, thereby realized being connected of outer oil seal and inner oil seal.Be interference fit between axial secondary lip 10 of radially secondary lip 9 of outer oil seal and outer oil seal and the inner oil seal skeleton 5, thereby prevent the foreign matter intrusion.Simultaneously the circular bottom part along outer oil seal is provided with outer oil seal bottom convex tendon 11, through convex tendon is set, both can play the effect of installing and locating, also can reduce and the inner oil seal skeleton between frictional force, can also play dustproof effect in addition.Outer oil seal skeleton 1 adopts half rubber-wrapping structure, and encapsulate partly is provided with ripple, and promptly outer oil seal skeleton 1 is made up of outer oil seal rubber body corrugated surface 12 and outer oil seal skeleton fitting surface 13 with the fitting surface between the seat hole.Outer oil seal rubber body corrugated surface 12 has guaranteed the outside seal of oil sealing, and outer oil seal skeleton fitting surface 13 has improved the installation tensile strength between oil sealing and the seat hole.The top of inner oil seal skeleton 5 is provided with inner oil seal skeleton bending part 3, and this bending part 3 can play the effect of oil baffle disc, reduces the interference to outer oil seal master lip of lubricant oil and impurity thereof.Inner oil seal rubber body 8 is positioned at the internal surface of inner oil seal skeleton 5, is interference fit between inner oil seal rubber body 8 and the running shaft, thereby oil sealing is rotated with axle.The axial convex tendon 6 of inner oil seal body rubber is set on the annular inner surface of inner oil seal rubber body 8 at interval; The inner oil seal body rubber that the below of the axial convex tendon 6 of inner oil seal body rubber is provided with many annulars is convex tendon 7 radially; Through the axial convex tendon of inner oil seal body rubber 6 and inner oil seal body rubber convex tendon 7 radially, further strengthened the tightness between interior seal and the running shaft.
Between the radially secondary lip 9 of said outer oil seal primary seal lip and outer oil seal, between the radially secondary lip 9 of outer oil seal and the axial secondary lip 10 of outer oil seal and in the space between radially secondary lip 10 of outer oil seal and the outer oil seal bottom convex tendon 11 lubricant oil can be set, thereby reduce the friction between outer oil seal sealing lip and the inner oil seal skeleton.
In the utility model, said inner oil seal body rubber radially convex tendon 7 also can be arranged on the top of the axial convex tendon 6 of inner oil seal body rubber.

Claims (4)

1. the muddy water oil sealing is prevented in a large-duty loader combination; Form by outer oil seal and inner oil seal; Outer oil seal is positioned at the outside of inner oil seal; Outer oil seal comprises outer oil seal skeleton (1), outer oil seal spring (2) and outer oil seal sealing lip; The outer oil seal sealing lip comprises radially secondary lip of outer oil seal primary seal lip, outer oil seal (9) and the axial secondary lip of outer oil seal (10); Inner oil seal comprises inner oil seal skeleton (5) and is the inner oil seal rubber body (8) of interference fit with running shaft, is interference fit between the radially secondary lip of outer oil seal primary seal lip, outer oil seal (9), the axial secondary lip of outer oil seal (10) and the inner oil seal skeleton (5), it is characterized in that: the circular bottom part along outer oil seal is provided with outer oil seal bottom convex tendon (11); The top of inner oil seal skeleton (5) is provided with inner oil seal skeleton bending part (3); Inner oil seal rubber body (8) is positioned at the internal surface of inner oil seal skeleton (5), at interval the axial convex tendon of inner oil seal body rubber (6) is set on the annular inner surface of inner oil seal rubber body (8), and the below of the axial convex tendon of inner oil seal body rubber (6) is provided with radially convex tendon (7) of inner oil seal body rubber.
2. the anti-muddy water oil sealing of large-duty loader combination according to claim 1, it is characterized in that: radially convex tendon (7) is along the ring surface setting of inner oil seal rubber body (8) for said inner oil seal body rubber, and inner oil seal body rubber radially convex tendon (7) is provided with one at least.
3. the anti-muddy water oil sealing of large-duty loader combination according to claim 1; It is characterized in that: said outer oil seal skeleton (1) adopts half rubber-wrapping structure; And encapsulate partly is provided with ripple, and the outer surface of outer oil seal skeleton (1) is made up of outer oil seal rubber body corrugated surface (12) and outer oil seal skeleton fitting surface (13).
4. the anti-muddy water oil sealing of large-duty loader according to claim 1 combination is characterized in that: between the radially secondary lip of said outer oil seal primary seal lip and outer oil seal (9), between the radially secondary lip of outer oil seal (9) and the axial secondary lip of outer oil seal (10) and in the space between the convex tendon (11) lubricant oil is set bottom axial secondary lip of outer oil seal (10) and the outer oil seal.
CN2011203524176U 2011-09-20 2011-09-20 Combined muddy-water-proof oil seal for large-sized loading machine Expired - Fee Related CN202381695U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203524176U CN202381695U (en) 2011-09-20 2011-09-20 Combined muddy-water-proof oil seal for large-sized loading machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203524176U CN202381695U (en) 2011-09-20 2011-09-20 Combined muddy-water-proof oil seal for large-sized loading machine

Publications (1)

Publication Number Publication Date
CN202381695U true CN202381695U (en) 2012-08-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102840328A (en) * 2012-09-10 2012-12-26 青岛开世密封工业有限公司 Thermostat sealing element and manufacturing method thereof
CN104864097A (en) * 2015-04-22 2015-08-26 安徽日亮氟塑密封件有限公司 Engine oil seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102840328A (en) * 2012-09-10 2012-12-26 青岛开世密封工业有限公司 Thermostat sealing element and manufacturing method thereof
CN102840328B (en) * 2012-09-10 2015-10-21 青岛开世密封工业有限公司 The manufacture method of thermoregulator Sealing
CN104864097A (en) * 2015-04-22 2015-08-26 安徽日亮氟塑密封件有限公司 Engine oil seal

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120815

Termination date: 20140920

EXPY Termination of patent right or utility model