CN103075498B - Excavator walking gear case seal assembly - Google Patents
Excavator walking gear case seal assembly Download PDFInfo
- Publication number
- CN103075498B CN103075498B CN201310020384.9A CN201310020384A CN103075498B CN 103075498 B CN103075498 B CN 103075498B CN 201310020384 A CN201310020384 A CN 201310020384A CN 103075498 B CN103075498 B CN 103075498B
- Authority
- CN
- China
- Prior art keywords
- seal
- metal floating
- type rubber
- floating seal
- gear case
- 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.)
- Active
Links
Landscapes
- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses excavator walking gear case seal assembly, belong to seal arrangement, its structure comprises two metal floating seal rings and two O type rubber seal, two described metal floating seal rings are symmetrical arranged, two described O type rubber seal are separately positioned on the male cone (strobilus masculinus) of two metal floating seal rings, and two described O type rubber seal and two metal floating seal rings are separately positioned in floating sealing base.Compared with prior art, excavator walking gear case seal assembly of the present invention has efficient sealability, effectively can prevent outside dirt, dust, water and abrasive material from immersing, and prevent the features such as inner fluid and oil leak, thus there is good application value.
Description
Technical field
The present invention relates to a kind of seal arrangement, especially a kind of excavator walking gear case seal assembly.
Background technique
Along with continuous progress and the development of industry, excavator has become the indispensable machinery of current engineering construction industry, from 20 th century later, the production of excavator is to the future development of maximization, microminiaturization, multifunction, customizations and automation in the world, and more famous excavator brand mainly contains Japan " little Song ", U.S.'s " Caterpillar ", Korea S " Daewoo ".More famous excavator manufacturing enterprise of China mainly contains Xu work, Yuchai heavy industry etc.Up to the present, full hydraulic excavator obtains and develops rapidly, makes excavator develop into hydraulic operation, pneumatic control, hydraulic servo manipulation and electrical control, wireless remotecontrol, electronic computer synthesizer by simple lever control and controls.Radio control is adopted at dangerous area or underwater operation, electronic computer control receiver and laser guide is utilized to combine, achieve the full automation that excavator operation is handled, but excavator is in operation, leakage and sealing problem annoying excavator manufacturing enterprise always, and excavator walking gear case oil leakage problem and sealing problem are the difficult problems that excavator sector is difficult to overcome always.
The Ji great Company (Seiko, Japan etc.) of Japan represents the direction of international bearing seal technical development.They in exploitation sealing technique developing direction and bearing means technical elements history comparatively early, research has the degree of depth, and current sealing technique is comparatively ripe.Develop into many sealing lips from single sealing lip, develop non-contact seals etc. from contact seal; From product type, ball bearing, roller bearing all have.China follows international trend, have also been developed deep groove ball bearing, water pump bearing, railway (tapered roller) bearing, needle bearing and several large class bearing of cylindrical roller bearing with seal ring, wherein deep groove ball bearing output is maximum, and application surface is the widest.According to SBTS in the recent period to China's bearing seal quality measurements, China's bearing seal structure design problem is comparatively large, and sealing effect is bad, and leak fat phenomenon comparatively seriously, customer responsiveness is strong.
At present, the solution also do not had.
Summary of the invention
Technical assignment of the present invention provides a kind of excavator walking gear case seal assembly for above-mentioned deficiency of the prior art, this excavator walking gear case seal assembly has efficient sealability, effectively can prevent outside dirt, dust, water and abrasive material from immersing, and prevent the feature of inner fluid and oil leak.
The technical solution adopted for the present invention to solve the technical problems is: it comprises two metal floating seal rings and two O type rubber seal, two described metal floating seal rings are symmetrical arranged, two described O type rubber seal are separately positioned on the male cone (strobilus masculinus) of two metal floating seal rings, and two described O type rubber seal and two metal floating seal rings are separately positioned in floating sealing base.
The end face that two described metal floating seal rings contact, in square with the axis plane, forms the sealing surface perpendicular to spin axis, and two sealing surfaces are opened from outside to inside gradually, forms v-shaped gap.
The angle of described v-shaped gap is 10 degree.
Two described metal floating seal rings adopt spheroidal graphite steel material.
Compared to the prior art excavator walking gear case seal assembly of the present invention, has following outstanding beneficial effect: sealability efficiently, effectively can prevent outside dirt, dust, water and abrasive material from immersing, and prevent inner fluid and oil leak; Automatic centering function, effectively can compensate beating in the bias of floating sealing base and axle and movement process, make it have the premium properties such as wear-resisting, shock-resistant, sealing assembly can be widely used in engineering machinery, particularly the medium feature of operating mode safeguarded of severe, the serious wear of operating conditions, inconvenience.
Accompanying drawing explanation
Accompanying drawing 1 is the front sectional view of excavator walking gear case seal assembly;
Accompanying drawing 2 is that sectional view is looked on a left side for the O type rubber seal shown in Fig. 1;
Description of reference numerals: 1, O type rubber seal, 2, metal floating seal ring, 3, v-shaped gap, 4, sealing surface, 5, male cone (strobilus masculinus).
Embodiment
With reference to Figure of description 1 and accompanying drawing 2, excavator walking gear case seal assembly of the present invention is described in detail below.
Excavator walking gear case seal assembly of the present invention, its structure comprises two metal floating seal rings 2 and two O type rubber seal 1, two described metal floating seal rings 2 are symmetrical arranged, two described O type rubber seal 1 are separately positioned on the male cone (strobilus masculinus) 5 of two metal floating seal rings 2, and two described O type rubber seal 1 and two metal floating seal rings 2 are separately positioned in floating sealing base.
The end face that two described metal floating seal rings 2 contact is in square with the axis plane, and sealing surface 4, two sealing surfaces 4 formed perpendicular to spin axis are opened from outside to inside gradually, forms v-shaped gap 3.Be beneficial to oiling agent and enter sealing surface 4.The effect that after lubricant oil is heated up by capillarity, centrifugal force and inner chamber, internal pressure increases enters between two sealing surfaces 4 by this v-shaped gap 3, form the very thin oil film of one deck and produce fluid resistance, promote heat radiation by circulating of fluid, realize lubrication and sealing.
The angle of described v-shaped gap 3 is 10 degree.
Two described metal floating seal rings 2 adopt spheroidal graphite steel material.There is good wear-resisting, high temperature resistant and high strength.
The sealing surface 4 of metal floating seal ring 2 adopts abrasive process process, O type rubber seal 1 acts on the axial thrust load of the elastic force on metal floating seal ring male cone (strobilus masculinus) 5, as the axial load on sealing surface 4, make matching trim 4 close contact of two metal floating seal ring 2 precise finishes, produce sealing usefulness.Radial component makes metal floating seal ring 2 automatic centering.Increase along with sealing surface 4 weares and teares, O type rubber seal 1 discharges elastic force and realizes nose balance.Under the comprehensive function of O type rubber seal 1 elastic force, make metal floating seal ring 2 keep floating, mutually following the reliability that ensure that sealing.
Parallelism≤3 ㎜ of the sealing surface 4 of two metal floating seal rings 2, planeness≤6 ㎜, roughness RQ=0.05 ㎜, contact with each other thus reach desirable seal state.Two metal floating seal ring 2 one geo-stationary, one rotates with floating sealing base, O type rubber seal 1 transmits friction torque as intermediary to black box, rely on stiction to drive metal floating seal ring to rotate with floating sealing base, prevent another metal floating seal ring from rotating with axle simultaneously.Floating sealing base holds O type rubber seal 1 and metal floating seal ring 2, and makes both keep certain position in space.There is resiliently deformable when pressurized in O type rubber seal 1, automatically can adapt to irregular surface, itself and floating sealing base internal surface close contact, plays static seal effect.The inner conical surface of floating sealing base plays the effect of transmitting friction torque simultaneously.
Except the technical characteristics described in specification, be the known technology of those skilled in the art.
Claims (3)
1. excavator walking gear case seal assembly, comprise two metal floating seal rings and two O type rubber seal, two described metal floating seal rings are symmetrical arranged, it is characterized in that: the male cone (strobilus masculinus) edge of described metal floating seal ring is provided with a groove, described O type rubber seal to be located in described groove and with described groove close contact, described two metal floating seal rings geo-stationary, one rotates with floating sealing base; Two described O type rubber seal and two metal floating seal rings are separately positioned in floating sealing base; The end face that two described metal floating seal rings contact, in square with the axis plane, forms the sealing surface perpendicular to spin axis, and two sealing surfaces are opened from outside to inside gradually, forms v-shaped gap; Parallelism≤the 3mm of the sealing surface of two described metal floating seal rings, planeness≤6mm, roughness RQ=0.05mm; The radial component of the elastic force that O type rubber seal acts on metal floating seal ring male cone (strobilus masculinus) makes the automatic centering of metal floating seal ring; Along with sealing surface wear increases, O type rubber seal release elastic force realizes nose balance.
2. excavator walking gear case seal assembly according to claim 1, is characterized in that: the angle of described v-shaped gap is 10 degree.
3. excavator walking gear case seal assembly according to claim 1, is characterized in that: two described metal floating seal rings adopt spheroidal graphite steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020384.9A CN103075498B (en) | 2013-01-18 | 2013-01-18 | Excavator walking gear case seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020384.9A CN103075498B (en) | 2013-01-18 | 2013-01-18 | Excavator walking gear case seal assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103075498A CN103075498A (en) | 2013-05-01 |
| CN103075498B true CN103075498B (en) | 2016-04-27 |
Family
ID=48152139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310020384.9A Active CN103075498B (en) | 2013-01-18 | 2013-01-18 | Excavator walking gear case seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103075498B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515542A (en) * | 2019-01-10 | 2019-03-26 | 安晓鹏 | A kind of seal assembly and crawler type vehicle wheel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08226447A (en) * | 1995-02-22 | 1996-09-03 | Ntn Corp | Seal device of conical roller bearing for swivel reduction gear |
| JP2004092895A (en) * | 2002-09-02 | 2004-03-25 | Tetsuya Watanabe | Oil seal |
| CN201714977U (en) * | 2010-06-29 | 2011-01-19 | 广州宝力特液压密封有限公司 | Self-lubricating floating oil seal |
| CN201836380U (en) * | 2010-11-04 | 2011-05-18 | 上海麦特密封件有限公司 | Floating oil seal |
| CN202484306U (en) * | 2012-03-07 | 2012-10-10 | 浙江广力工程机械有限公司 | Floating oil seal |
| CN202656311U (en) * | 2012-06-26 | 2013-01-09 | 郑州水工机械有限公司 | Sealing device for main shaft end of double horizontal shaft forcing type concrete mixer |
| CN203023453U (en) * | 2013-01-18 | 2013-06-26 | 山东博特轴承有限公司 | Seal assembly of walking gear box of excavator |
-
2013
- 2013-01-18 CN CN201310020384.9A patent/CN103075498B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103075498A (en) | 2013-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5881716B2 (en) | Sliding parts | |
| JP5960145B2 (en) | Sliding parts and manufacturing method thereof | |
| JP5968889B2 (en) | Sliding parts | |
| US20150084286A1 (en) | Sliding component | |
| JP5995967B2 (en) | Sliding parts | |
| US9958010B2 (en) | Sliding component | |
| JP6762358B2 (en) | Grooved dynamic pressure radial gas bearing | |
| CN203822685U (en) | Fluoroplastic magnetic drive pump capable of approximate zero inner leakage | |
| JP2016050653A (en) | Mechanical seal for submerged pump | |
| CN102359596A (en) | Seal structure with unidirectionally-rotatable three-dimensional L-shaped groove end face | |
| CN203023453U (en) | Seal assembly of walking gear box of excavator | |
| CN103075498B (en) | Excavator walking gear case seal assembly | |
| CN104067012B (en) | Swash plate | |
| CN202946020U (en) | Cone bit bearing assembly with monometallic sealing system and floating bearing system combined | |
| CN106499817A (en) | Super abrasive float grease seal ring and its production and processing method | |
| CN109237031A (en) | A kind of axis surface has the lip seal configuration of texture | |
| CN211343720U (en) | Self-lubricating radial spherical plain bearing | |
| CN202125611U (en) | Large-depth underwater inner shaft and outer shaft mechanical seal device | |
| US10746304B2 (en) | Face seal assembly for machine system having metallic sealing ring with stiffness relief groove to compensate for out-of-plane sealing face | |
| CN107965577B (en) | Super-hard material surfacing mechanical sealing ring | |
| CN207316075U (en) | A kind of float grease seal | |
| CN105240536A (en) | Spindle water feeding sealing device | |
| CN110513324A (en) | Reactor coolant pump Hydrostatic die mould mechanical seal | |
| CN202360764U (en) | Unidirectional-rotation three-dimension L-shaped groove end face sealing structure | |
| CN220435409U (en) | Motor bearing sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |