CN106678468A - Sealing structure of large operation machinery rotation joint - Google Patents
Sealing structure of large operation machinery rotation joint Download PDFInfo
- Publication number
- CN106678468A CN106678468A CN201710065271.9A CN201710065271A CN106678468A CN 106678468 A CN106678468 A CN 106678468A CN 201710065271 A CN201710065271 A CN 201710065271A CN 106678468 A CN106678468 A CN 106678468A
- Authority
- CN
- China
- Prior art keywords
- revolving body
- section
- outer ring
- slot
- large operation
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
Abstract
The invention relates to a sealing structure of a large operation machinery rotation joint. The sealing structure of the large operation machinery rotation joint comprises a rotation shaft (1) and a rotation body (2). The rotation body (2) is provided with a plurality of annular channels (3); a sealing piece slot (4) is formed between each two adjacent annular channels (3); a combination sealing piece (5) is arranged in each sealing piece slot (4) ; each sealing piece slot (4) comprises an outer slot (4.1) and an inner slot (4.2); the cross section of each outer slot (4.1) is in a rectangular shape; the cross section of each inner slot (4.2) is in a circular arc shape; each combination sealing piece (5) comprises an outer ring (5.1) and an inner ring (5.2); the cross section of each outer ring (5.1) is in a rectangular shape; and each inner ring (5.2) is embedded in the inner side of the corresponding outer ring (5.1). According to the sealing structure of the large operation machinery rotation joint provided by the invention, the structure design is reasonable, and the abrasion of the sealing pieces is greatly reduced, so that the service life of the product is prolonged, the reliability of the product is improved, and the sealing structure of the large operation machinery rotation joint is particularly applicable for application in large operation machinery.
Description
Technical field
The present invention relates to a kind of swivel coupling, is specifically related to a kind of sealing structure of heavy duty work machinery rotation joint,
It is mainly used in the engineering machinery such as large excavator, shield machine, land leveller, tower crane, marine drilling platform, belongs to engineering machinery
Technical field.
Background technology
Due to construction machinery industry fast development 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 comparing or 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 engineering machinery demand 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 the upper and lower hydraulic tube of connection
The important function on road, rotates 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, the demand of swivel coupling, function and reliability requirement are constantly being carried
Height, therefore Development and Production efficient low-consume, diversification, multi-functional and high technology content swivel coupling product that production and marketing is satisfied the need, to expanding
Major company's market share, enterprise competitiveness, power of influence 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 revolving body and gyroaxis, and multiple radial directions are provided with revolving body and gyroaxis
Oil circuit, to prevent from altering oily phenomenon between two neighboring radial direction oil circuit, it will usually if arranging 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 sealing member 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 the form of sealing.But in making for large-scale engineering machinery such as large excavator, shield machine, land leveller, marine drilling platform etc.
With during, often there is the problem of seal fails.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 sealing member is sheared by larger, and easy sealing member deforms so that serious wear；In addition
It is because the fineness of usual gyroaxis outer wall in the fabrication process is higher than the fineness of revolving body outer wall therefore close using combination
The situation that inner ring skids and outer ring is worn and torn with revolving body generation, inner ring after outer ring is worn and torn to a certain extent can be produced during seal structure
Gap increase between gyroaxis, can also produce the problem of seal fails.
The content of the invention
The technical problem to be solved is to provide a kind of heavy duty work machinery rotation for above-mentioned prior art to connect
The sealing structure of head, its reasonable in design substantially reduces the abrasion of sealing member, so as to extend the service life of product, carries
The high reliability of product, is particularly suited for the application of heavy duty work machinery.
The present invention the adopted technical scheme that solves the above problems is：A kind of sealing knot of heavy duty work machinery rotation joint
Structure, it includes gyroaxis and revolving body, and the revolution shaft lower end is from the top axial insertion revolving body of revolving body, and gyroaxis
Upper end be exposed to revolving body, multiple tracks circular passage is offered on the revolving body inwall, between two neighboring circular passage
One seal channel is provided with, combination seal is provided with the seal channel, the seal channel includes water jacket and inside groove,
The water jacket is opened on revolving body inwall, and the inside groove is opened on gyroaxis outer wall, the rectangular in cross-section of the water jacket, institute
The section of inside groove is stated in circular arc, the combination seal includes outer ring and inner ring, the rectangular in cross-section of the outer ring is described outer
Circle is placed in water jacket, and the section of the inner ring is rounded, and the inner ring is embedded at outer ring inner side, the inner ring inner side and circular arc
The inside groove of shape contacts.
Compared with prior art, it is an advantage of the current invention that：
A kind of sealing structure of heavy duty work machinery rotation joint of the present invention, its seal channel is made up of inside groove and water jacket, in it
Slot cross-section is circular arc, is engaged with the inner ring of combination seal, on the one hand can increase the contact area of inner ring and gyroaxis,
So as to improve sealing property；On the other hand, even if inner ring is produced after certain abrasion, in the pressure of heavy duty work machinery hydraulic system
Still can be fitted close under effect, so as to effectively prevent seal fails, substantially prolongs the service life of product, improve
The reliability of product, is particularly suited for the application of heavy duty work machinery.
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 invention.
Fig. 2 is the A portions enlarged drawing of Fig. 1.
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.
Specific embodiment
The present invention 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 the gyroaxis 1 is from the top axial of revolving body 2 insertion revolving body 2, and gyroaxis 1 is upper
End is exposed to revolving body 2, and multiple tracks circular passage 3 is offered on the inwall of the revolving body 2, between two neighboring circular passage 3
It is provided with one 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 the inner ring 5.2 contacts with the inside groove 4.2 of circular arc.
In addition to the implementation, present invention additionally comprises there is other embodiment, all employing equivalents or equivalence replacement
The technical scheme that mode is formed, all should fall within the scope of the hereto appended 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 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）Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065271.9A CN106678468A (en) | 2017-02-06 | 2017-02-06 | Sealing structure of large operation machinery rotation joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065271.9A CN106678468A (en) | 2017-02-06 | 2017-02-06 | Sealing structure of large operation machinery rotation joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678468A true CN106678468A (en) | 2017-05-17 |
Family
ID=58860427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710065271.9A Pending CN106678468A (en) | 2017-02-06 | 2017-02-06 | Sealing structure of large operation machinery rotation joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678468A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302202A (en) * | 2018-03-13 | 2018-07-20 | 山东临工工程机械有限公司 | One kind can tuning connector and its sealing device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789556Y (en) * | 2005-05-02 | 2006-06-21 | 中国人民解放军63983部队 | Multifunction central rotating connection |
| CN101153594A (en) * | 2006-09-27 | 2008-04-02 | 阿耐思特岩田株式会社 | A sealing device of fluid machinery |
| CN101358652A (en) * | 2008-09-01 | 2009-02-04 | 陈社会 | High-pressure square sectional combination sealing element with end plane rotatable |
| CN102352942A (en) * | 2011-08-22 | 2012-02-15 | 中联重科股份有限公司 | Rotating joint and environmental sanitary vehicle with same |
| CN202302492U (en) * | 2011-10-27 | 2012-07-04 | 江阴市长龄机械制造有限公司 | Gyrating joint with big gyration angle and good sealing effect |
| CN102767624A (en) * | 2012-07-20 | 2012-11-07 | 石家庄中煤装备制造股份有限公司 | Combined sealing part and kinematical sealing structure |
| CN103062407A (en) * | 2012-12-29 | 2013-04-24 | 太仓市明宇密封件有限公司 | Square coaxial sealing element |
| CN203214880U (en) * | 2013-05-08 | 2013-09-25 | 淄博爱科密封件有限公司 | Embedded combined sealing device |
| CN203363153U (en) * | 2013-05-16 | 2013-12-25 | 淄博泽一真空设备有限公司 | Mechanical oil seal |
| CN206530796U (en) * | 2017-02-06 | 2017-09-29 | 江阴市长龄机械制造有限公司 | The sealing structure of heavy duty work machinery rotation joint |
-
2017
- 2017-02-06 CN CN201710065271.9A patent/CN106678468A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789556Y (en) * | 2005-05-02 | 2006-06-21 | 中国人民解放军63983部队 | Multifunction central rotating connection |
| CN101153594A (en) * | 2006-09-27 | 2008-04-02 | 阿耐思特岩田株式会社 | A sealing device of fluid machinery |
| CN101358652A (en) * | 2008-09-01 | 2009-02-04 | 陈社会 | High-pressure square sectional combination sealing element with end plane rotatable |
| CN102352942A (en) * | 2011-08-22 | 2012-02-15 | 中联重科股份有限公司 | Rotating joint and environmental sanitary vehicle with same |
| CN202302492U (en) * | 2011-10-27 | 2012-07-04 | 江阴市长龄机械制造有限公司 | Gyrating joint with big gyration angle and good sealing effect |
| CN102767624A (en) * | 2012-07-20 | 2012-11-07 | 石家庄中煤装备制造股份有限公司 | Combined sealing part and kinematical sealing structure |
| CN103062407A (en) * | 2012-12-29 | 2013-04-24 | 太仓市明宇密封件有限公司 | Square coaxial sealing element |
| CN203214880U (en) * | 2013-05-08 | 2013-09-25 | 淄博爱科密封件有限公司 | Embedded combined sealing device |
| CN203363153U (en) * | 2013-05-16 | 2013-12-25 | 淄博泽一真空设备有限公司 | Mechanical oil seal |
| CN206530796U (en) * | 2017-02-06 | 2017-09-29 | 江阴市长龄机械制造有限公司 | The sealing structure of heavy duty work machinery rotation joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302202A (en) * | 2018-03-13 | 2018-07-20 | 山东临工工程机械有限公司 | One kind can tuning connector and its sealing device |
| CN108302202B (en) * | 2018-03-13 | 2023-09-22 | 山东临工工程机械有限公司 | Direction-adjustable joint and sealing device thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Applicant after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Applicant before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |