CN206530796U - The sealing structure of heavy duty work machinery rotation joint - Google Patents
The sealing structure of heavy duty work machinery rotation joint Download PDFInfo
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- CN206530796U CN206530796U CN201720109613.8U CN201720109613U CN206530796U CN 206530796 U CN206530796 U CN 206530796U CN 201720109613 U CN201720109613 U CN 201720109613U CN 206530796 U CN206530796 U CN 206530796U
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- seal
- revolving body
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- outer ring
- water jacket
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Abstract
The utility model is related to a kind of sealing structure of heavy duty work machinery rotation joint, and it includes gyroaxis（1）And revolving body（2）, the revolving body（2）Offer multiple tracks circular passage（3）, two neighboring circular passage（3）Between be provided with seal channel（4）, the seal channel（4）Inside it is provided with combination seal（5）, the seal channel（4）Including water jacket（4.1）And inside groove（4.2）The water jacket（4.1）Rectangular in cross-section, the inside groove（4.2）Section be in circular arc, the combination seal（5）Including outer ring（5.1）And inner ring（5.2）, the outer ring（5.1）Rectangular in cross-section, the inner ring（5.2）Be embedded at outer ring（5.1）Inner side.The utility model provides a kind of sealing structure of heavy duty work machinery rotation joint, and its reasonable in design substantially reduces the abrasion of seal, so as to extend the service life of product, improves the reliability of product, the application for the large-scale engineering machinery that is particularly suitable for use in.
Description
Technical field
The utility model is related to a kind of swivel coupling, is specifically related to a kind of sealing knot of heavy duty work machinery rotation joint
Structure, is mainly used in the engineering machinery such as large excavator, shield machine, land leveller, tower crane, marine drilling platform, belongs to engineering
Field of mechanical technique.
Background technology
Due to the fast development of construction machinery industry at home in recent years, country carries forward vigorously construction machinery production industry
Development, simultaneously because China's construction machinery production industry level is more external compared to still relatively backward, Foreign Engineering Machinery giant jail
The handle in jail holds key technology, the development of the domestic manufacture level of containment.With the increase of the demand of engineering machinery at home, supply
Contradiction is needed progressively to increase.
Swivel coupling belongs to a critically important part in large-scale engineering machinery hydraulic unit, plays hydraulic tube above and below connection
The important function on road, is rotated smoothly to engineering machinery, and the unimpeded of oil circuit plays particularly important effect.At present, swivel coupling
Product has been directed to the different fields such as engineering, coal, chemical industry, oil, ship, track traffic, and industry is different, to swivel coupling
Functional requirement also just have any different, with expanding economy, demand, function and the reliability requirement of swivel coupling are constantly being carried
Height, therefore Development and Production efficient low-consume, diversification that production and marketing is satisfied the need, multi-functional and high technology content swivel coupling product, to expanding
Major company's market share, enterprise competitiveness, influence power have important purpose and meaning.
Applicant have submitted the application for a patent for invention of a Application No. 200410014594.8 on April 9th, 2004, its
A kind of hydraulic central revolved body is disclosed, it includes being provided with multiple radial directions on revolving body and gyroaxis, revolving body and gyroaxis
Oil circuit, to prevent from altering oily phenomenon between two neighboring radial direction oil circuit, it will usually if being set between gyroaxis and revolving body
Dry seal circle is used to seal.At present, seal groove is generally opened on revolving body inwall or on gyroaxis outer wall, and seal can be with
Using single track sealing ring or combined seal ring, three kinds of groups are also disclosed that in the patent of invention of Application No. 200410014594.8
Close sealed form.But making in large-scale engineering machinery such as large excavator, shield machine, land leveller, marine drilling platform etc.
During, the problem of seal fails often occur.Trace it to its cause, it has been found that due to the hydraulic pressure system of large-scale engineering machinery
Its operating pressure of uniting is very big, therefore seal, by larger shearing, easy seal deformation is so that serious wear；In addition
Because the finish of usual gyroaxis outer wall in the fabrication process is higher than the finish of revolving body outer wall, thus it is close using combining
The situation that inner ring is skidded and outer ring is worn and torn with revolving body can be produced during seal structure, inner ring after outer ring is worn and torn to a certain extent
Gap increase between gyroaxis, the problem of also producing seal fails.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of heavy duty work machinery for above-mentioned prior art to return
The sealing structure of adapter, its reasonable in design substantially reduces the abrasion of seal, so as to extend the use longevity of product
Life, improves the reliability of product, the application for the heavy duty work machinery that is particularly suitable for use in.
The technical scheme in the invention for solving the above technical problem is：A kind of heavy duty work machinery rotation joint it is close
Seal structure, it includes gyroaxis and revolving body, and the revolution shaft lower end is returned out of revolving body top axial insertion revolving body
The upper end of rotating shaft, which is exposed on revolving body, the revolving body inwall, offers multiple tracks circular passage, two neighboring circular passage it
Between be provided with one of seal channel, the seal channel and be provided with combination seal, the seal channel include water jacket and
Inside groove, the water jacket is opened on revolving body inwall, and the inside groove is opened on gyroaxis outer wall, and the section of the water jacket is in square
Shape, the section of the inside groove is in circular arc, and the combination seal includes outer ring and inner ring, the rectangular in cross-section of the outer ring,
The outer ring is placed in water jacket, and the section of the inner ring is rounded, and the inner ring is embedded on the inside of outer ring, on the inside of the inner ring
It is in contact with the inside groove of circular arc.
Compared with prior art, the utility model has the advantage of：
A kind of sealing structure of heavy duty work machinery rotation joint of the utility model, its seal channel is by inside groove and water jacket structure
It is circular arc into, its interior slot cross-section, is engaged with the inner ring of combination seal, on the one hand can increases connecing for inner ring and gyroaxis
Contacting surface is accumulated, so as to improve sealing property；On the other hand, even if inner ring is produced after certain abrasion, in heavy duty work mechanical-hydraulic system
It still can be fitted close under the pressure effect of system, so as to effectively prevent seal fails, substantially prolongs the use longevity of product
Life, improves the reliability of product, the application for the heavy duty work machinery that is particularly suitable for use in.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the sealing structure of heavy duty work machinery rotation joint of the utility model.
Fig. 2 is Fig. 1 A portions enlarged drawing.
Wherein：
Gyroaxis 1
Revolving body 2
Circular passage 3
Seal channel 4
Water jacket 4.1
Inside groove 4.2
Combination seal 5
Outer ring 5.1
Inner ring 5.2.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1 and Figure 2, the sealing structure of a kind of heavy duty work machinery rotation joint in the present embodiment, it includes back
Rotating shaft 1 and revolving body 2, the lower end of gyroaxis 1 is out of the top axial of revolving body 2 insertion revolving body 2, and gyroaxis 1 is upper
End, which is exposed on revolving body 2, the inwall of revolving body 2, to be offered between multiple tracks circular passage 3, two neighboring circular passage 3
It is provided with one of seal channel 4, the seal channel 4 and is provided with combination seal 5, the seal channel 4 includes water jacket 4.1
With inside groove 4.2, the water jacket 4.1 is opened on the inwall of revolving body 2, and the inside groove 4.2 is opened on the outer wall of gyroaxis 1, described
The rectangular in cross-section of water jacket 4.1, the section of the inside groove 4.2 is in circular arc, and the combination seal 5 includes outer ring 5.1 and interior
Circle 5.2, the rectangular in cross-section of the outer ring 5.1, the outer ring 5.1 is placed in water jacket 4.1, and the section of the inner ring 5.2 is in
Circle, the inner ring 5.2 is embedded at the inner side of outer ring 5.1, and the inner side of inner ring 5.2 is in contact with the inside groove 4.2 of circular arc.
In addition to the implementation, the utility model also includes other embodiment, all use equivalents or equivalent
The technical scheme of substitute mode formation, all should fall within the utility model scope of the claims.
Claims (1)
1. a kind of sealing structure of heavy duty work machinery rotation joint, it is characterised in that：It includes gyroaxis（1）And revolving body
（2）, the gyroaxis（1）Lower end is from revolving body（2）Top axial insertion revolving body（2）It is interior, and gyroaxis（1）Upper end dew
For revolving body（2）, the revolving body（2）Multiple tracks circular passage is offered on inwall（3）, two neighboring circular passage（3）It
Between be provided with one of seal channel（4）, the seal channel（4）Inside it is provided with combination seal（5）, the seal channel
（4）Including water jacket（4.1）And inside groove（4.2）, the water jacket（4.1）It is opened in revolving body（2）On inwall, the inside groove（4.2）
It is opened in gyroaxis（1）On outer wall, the water jacket（4.1）Rectangular in cross-section, the inside groove（4.2）Section be in circular arc,
The combination seal（5）Including outer ring（5.1）And inner ring（5.2）, the outer ring（5.1）Rectangular in cross-section, the outer ring
（5.1）It is placed in water jacket（4.1）It is interior, the inner ring（5.2）Section it is rounded, the inner ring（5.2）It is embedded at outer ring（5.1）
Inner side, the inner ring（5.2）Inner side and the inside groove of circular arc（4.2）It is in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720109613.8U CN206530796U (en) | 2017-02-06 | 2017-02-06 | The sealing structure of heavy duty work machinery rotation joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720109613.8U CN206530796U (en) | 2017-02-06 | 2017-02-06 | The sealing structure of heavy duty work machinery rotation joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530796U true CN206530796U (en) | 2017-09-29 |
Family
ID=59916338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720109613.8U Active CN206530796U (en) | 2017-02-06 | 2017-02-06 | The sealing structure of heavy duty work machinery rotation joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678468A (en) * | 2017-02-06 | 2017-05-17 | 江阴市长龄机械制造有限公司 | Sealing structure of large operation machinery rotation joint |
| CN108442934A (en) * | 2018-03-28 | 2018-08-24 | 辽宁工程技术大学 | A kind of shield machine sealing structure for set of tunneling construction |
-
2017
- 2017-02-06 CN CN201720109613.8U patent/CN206530796U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678468A (en) * | 2017-02-06 | 2017-05-17 | 江阴市长龄机械制造有限公司 | Sealing structure of large operation machinery rotation joint |
| CN108442934A (en) * | 2018-03-28 | 2018-08-24 | 辽宁工程技术大学 | A kind of shield machine sealing structure for set of tunneling construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |