CN205895252U - Shield constructs machine central authorities rotary joint - Google Patents
Shield constructs machine central authorities rotary joint Download PDFInfo
- Publication number
- CN205895252U CN205895252U CN201620769796.1U CN201620769796U CN205895252U CN 205895252 U CN205895252 U CN 205895252U CN 201620769796 U CN201620769796 U CN 201620769796U CN 205895252 U CN205895252 U CN 205895252U
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- China
- Prior art keywords
- seal
- oil
- way
- housing
- rotary joint
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- Withdrawn - After Issue
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Abstract
The utility model provides a shield constructs machine central authorities rotary joint, pivot in the casing that has a through -hole and the through -hole that inserts the casing is equipped with a plurality of media channel in, be equipped with along the axial of pivot and connect the perforation, is equipped with the medium groove on the through -hole, is equipped with line connection on the casing, is equipped with interior seal structure on the through -hole, and seal structure includes two seal grooves, lubrication groove and lip seal spares in every, is equipped with the pressure -bearing lip that has with the notes fat mouth lip seal spare of lubrication groove switch -on on the casing and places back to the lubrication groove, installs lip seal spare among the seal groove, through set up the lubrication groove between two adjacent lip seal circles for lubrication sealing spare is used for extruding the wear particle and provide certain pressure, has overcome the lubricated problem of non - oil medium sealed the time, also makes the seal life who contains the solid particle pollutant to improve, and this scheme is obvious to seal life's extension effect, and simple structure easily realizes.
Description
Technical field
The utility model is related to central rotary joint, more particularly, to a kind of shield machine central authorities' rotary joint.
Background technology
Carried out with shield machine tunnel construction have high degree of automation, save that manpower, speed of application be fast, cavitation, no
Water is not affected when can control surface subsidence when climate impact, excavation, reducing the impact to above ground structure and excavate under water
The features such as face traffic, tunnel line is longer, buried depth larger in the case of, with shield machine construction more economical rationality.
The basic functional principle of shield machine be exactly a cylindrical steel assembly along canal axes when pushing ahead to soil
Earth is excavated.The housing of this cylinder component is shield, and it plays temporary support to the also unlined Tunnel Section excavated
Effect, bear the pressure of soil layer around, sometimes also subject to ground water pressure and by underground water keep off outside.Excavation, casting, lining
The operations such as block are carried out under the shielding of shield.
When shield machine works, cutterhead is implemented to excavate, simultaneously need to the work of soil improvement is carried out to the excavation portion of cutterhead,
The improvement medium being usually used is water, foam or bentonite, and cutterhead is in size operating condition, inputs these and improves medium
When, need by the central rotary joint of be connected part and rotatable parts, and the sealing structure in existing central rotary joint is wear-resisting
Property relatively low, the life-span is shorter, is difficult to take into account wear-resisting and lubrication demand during in particular for the not high non-oily medium of cleannes.
Utility model content
The technical problems to be solved in the utility model is: in order to solve the wearability of seal member in existing central authorities rotary joint
Low, short life and the easy situation that leakage occurs, the utility model provide a kind of shield machine central authorities rotary joint solve above-mentioned
Problem.
The utility model solves its technical problem and be the technical scheme is that a kind of shield machine central authorities rotary joint, bag
Include the rotating shaft in the housing with through hole and insertion through hole, the inwall of described housing is provided with several annular media slot, institute
State and pipe interface is offered on the outer wall of housing, described pipe interface connects with media slot, described rotating shaft is provided with several
Medium channel is connected with corresponding media slot by medium channel with connecing perforation, the described perforation that connects, each two phase on described housing
It is provided with an inner seal structure between adjacent media slot；
Described inner seal structure includes:
Seal groove and oil-way, described seal groove and oil-way are all opened on the inwall of housing, described seal groove
Quantity be two, the quantity of oil-way is one, and described oil-way is arranged between two seal grooves；
Greasing mouth, described greasing mouth is opened on the outer wall of described housing and is connected with described oil-way；
Two lippackings, described two lippackings are separately mounted in two described seal grooves, described two
The pressure-bearing lip of lippacking is each arranged back to oil-way.
Further: on the inwall of housing, along the outside of the media slot being axially located first place of housing with positioned at end
The outside of the media slot of position is equipped with outer seal configuration,
Described outer seal configuration includes:
Seal groove and oil-way, described seal groove and oil-way are all opened on the inwall of housing, described seal groove
Quantity be two, the quantity of oil-way is one, and described oil-way is arranged between two seal grooves；
Greasing mouth, described greasing mouth is opened on the outer wall of housing and is connected with described oil-way；
Two lippackings, described two lippackings are separately mounted in described seal groove, described two lips
The pressure-bearing lip of seal is all in the face of media slot is arranged.
Further: the material of described lippacking is common nitrile rubber, folder cloth nitrile rubber or polyurethane.
Further: the pressure-bearing lip of described lippacking is embedded with o shape circle.
Further: the two ends of described through hole are provided with bearing, the cylindrical cooperation of the inner ring of described bearing and rotating shaft.
Further: described bearing is rolling bearing or oilless bearing.
The beneficial effects of the utility model are that a kind of central rotary joint of shield machine of the utility model passes through adjacent at two
Between lip-type packing, oil-way is set, for lubrication and seal part and provide certain pressure for extruding wear particle,
Overcome the lubrication problem in sealing for the non-oily medium, also so that the sealing life containing solid grain contamination is carried
Height, the program is obvious to the prolongation effect of sealing life, and structure is simply easily achieved.
Brief description
With reference to the accompanying drawings and examples the utility model is further illustrated.
Fig. 1 is a kind of structural representation of shield machine of the utility model central authorities rotary joint optimum embodiment；
Fig. 2 is the media slot of housing and the partial structural diagram of seal groove；
Fig. 3 is the mounting structure schematic diagram of inner seal structure；
Fig. 4 and Fig. 5 is the structural representation of lippacking；
Fig. 6 is the structural representation that pressure-bearing lip is embedded with o shape circle；
Fig. 7 is the mounting structure schematic diagram of outer seal configuration；
Fig. 8 is the housing parts partial structural diagram of outer seal configuration.
In figure 1, rotating shaft, 2, housing, 3, media slot, 4, inner seal structure, 5a and 5b, lippacking, 6, external seal knot
Structure, 7, o shape circle, 8, pipe interface, 9, bearing, 11, medium channel, 12, connect perforation, 21, through hole, 41 and 44, oil-way, 42
With 45, seal groove, 43 and 46, greasing mouth, 51a and 51b, pressure-bearing lip.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limit.On the contrary, embodiment of the present utility model include falling into all in the range of the spirit of attached claims and intension
Change, modification and equivalent.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " axle
To ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or position relationship, be only for
It is easy to describe the utility model and simplifies description, rather than the device of instruction or hint indication or element must have specifically
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint are relatively important
Property.In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " being connected ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool connects or electrically connects；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary.For this area
For those of ordinary skill, concrete meaning in the utility model for the above-mentioned term can be understood with concrete condition.Additionally, in this reality
With, in new description, unless otherwise stated, " multiple " are meant that two or more.
In flow chart or here any process described otherwise above or method description are construed as, represent and include
The module of the code of executable instruction of one or more steps for realizing specific logical function or process, fragment or portion
Point, and the scope of preferred embodiment of the present utility model includes other realization, wherein can not press shown or discuss
Order, including according to involved function by substantially simultaneously in the way of or in the opposite order, carry out perform function, this should by this
The embodiment person of ordinary skill in the field of utility model is understood.
As shown in Figures 1 to 8, the utility model provides a kind of shield machine central authorities rotary joint, including having through hole 21
Housing 2 and insertion through hole 21 in rotating shaft 1, the inwall of described housing 2 is provided with several annular media slot 3, described shell
Pipe interface 8 is offered on the outer wall of body 2, described pipe interface 8 connects with media slot 3, and described rotating shaft 1 is provided with several
Medium channel 11 is connected with corresponding media slot 3 by medium channel 11 with connecing perforation 12, the described perforation 12 that connects, and its feature exists
In: an inner seal structure 4 is provided between the adjacent media slot of each two 3 on described housing 2；
As shown in figure 3, described inner seal structure 4 includes:
Seal groove 42 and oil-way 41, described seal groove 42 and oil-way 41 are all opened on the inwall of housing 2, institute
The quantity stating seal groove 42 is two, and the quantity of oil-way 41 is one, and described oil-way 41 is arranged on two seal grooves
Between 42；
Greasing mouth 43, described greasing mouth 43 is opened on the outer wall of described housing 2 and is connected with described oil-way 41；
Two lippacking 5a, described two lippacking 5a are separately mounted in two described seal grooves 42, institute
The pressure-bearing lip 51a stating two lippacking 5a is each arranged back to oil-way 41.
On the inwall of housing 2, along outside and Jie being located at last position of the media slot 3 being axially located first place of housing 2
The outside of matter groove 3 is equipped with outer seal configuration 6,
As shown in figure 8, described outer seal configuration 6 includes:
Seal groove 45 and oil-way 44, described seal groove 45 and oil-way 44 are all opened on the inwall of housing 2, institute
The quantity stating seal groove 45 is two, and the quantity of oil-way 44 is one, and described oil-way 44 is arranged on two seal grooves
Between 45；
Greasing mouth 46, described greasing mouth 46 is opened on the outer wall of housing 2 and is connected with described oil-way 44；
Two lippacking 5b, described two lippacking 5b are separately mounted in described seal groove 45, and described two
The pressure-bearing lip 51b of individual lippacking 5b is all in the face of media slot 3 is arranged.
Operationally housing 2 and rotating shaft 1 relatively rotate, cut-in operation medium in pipe interface 8, and working media is flowed into Jie
In matter groove 3, then by connecing among the medium channel 11 of perforation 12 arrival rotating shafts 1 of connecting with media slot 3 it has to be noted that real
In the work of border, the flow direction of working media is not limited to described this kind of form it is also possible to be situation in contrast, that is, work Jie
Matter is reached among pipe interface 8 by medium channel 11.
Sealing between adjacent media slot 3 is realized by inner seal structure 4, and inner seal structure 4 ensures in shell
Body 2 and rotating shaft 1 during relatively rotating, between each media slot 3 be isolated from each other, independent state.3 liang of each media slot
Side closest to the direction all against this media slot 3 for the pressure-bearing lip 51a of the lippacking 5a in seal groove 42, for realizing being situated between
The sealing of matter groove 3 both sides, the working media in media slot 3 mostly is non-oleaginous working media, and working media is many times
Containing pollutants such as solid particles, it is filled with the oil-way 41 between described adjacent seals groove 42 and is injected into by greasing mouth 43
The lubricant grease coming, this lubricant grease can be filled into the rear portion of the pressure-bearing lip 51a of lippacking 5a always, have lubricated lip
The lip contact sealing position of seal 5a, and lubricant grease itself can have certain pressure, can give lippacking
The rear portion of the pressure-bearing lip 51a of 5a provides certain support force, also certain work being mixed in lip contact sealing
Medium and the effect of solid pollution particulate matter therein extrusion lip, it is to avoid particulate matter accelerated wear test contacts sealing.
Outer seal configuration 6 one aspect that the outside of the media slot 3 of the first outside of media slot 3 and last position is equipped with rises close
The function of the corresponding media slot 3 of initial and end of envelope, on the other hand plays dust-proof function；Away from media slot in outer seal configuration 6
The lippacking 5b being installed in 3 seal groove 45, its pressure-bearing lip 51b installs against media slot 3, on the one hand plays sealing
Lubricant grease, on the other hand also can prevent in corresponding media slot 3 as the secondary seal of media slot 3 sealing further
Working media leaks.
The material of described lippacking 5a, 5b is common nitrile rubber, folder cloth nitrile rubber or polyurethane, common fourth
Nitrile rubber has preferable followability, and housing 2 and the sealing surface of rotating shaft 1 can be allowed to be machined with larger circularity or cylindricity
Error is not high to machining requirements；Folder cloth nitrile rubber has higher hardness it is desirable to the sealing surface of housing 2 and rotating shaft 1 is processed
There is higher precision, but folder cloth nitrile rubber there is very high anti-wear performance it is ensured that central rotary joint have longer
Service life；Polyurethane takes into account wearability and followability it is ensured that product can meet sealing in conventional machining accuracy
Demand, meanwhile, has longer anti-wear performance again, but polyurethane material typically can hydrolyze in the higher occasion of temperature,
Cause intensity decreases, initiation is worn, and then lead to not the faults such as sealing, the service life of impact product, therefore, polyurethane
It is typically employed in workplace below normal temperature or normal temperature for the temperature.
As shown in fig. 6, pressure-bearing lip 51a, 51b of described lippacking 5a, 5b are embedded with o shape circle 7, due to pressing from both sides pudding
Nitrile rubber its rigidity is higher, therefore elastic poor, and the lip wear-compensating that lippacking 5a, 5b can occur when using is not
Timely situation, the o shape circle 7 being embedded in pressure-bearing lip 51a, 51b has good elasticity, can lippacking 5a,
5b lip occurs to provide during abrasion and compensates it is ensured that the lasting thrust of lippacking 5a, 5b.
The two ends of described through hole 21 are provided with bearing 9, the inner ring of described bearing 9 and the cylindrical cooperation of rotating shaft 1, the axle at two ends
Hold 9 support rotating shafts 1, it is to avoid lippacking 5a, 5b that the weight of rotating shaft 1 is fully sealed in groove is bearing；Because there being axle
Hold 9 support, position in through hole 21 for the rotating shaft 1 is changed by the abrasion of lippacking 5a, 5b also will not；On the one hand
Avoid the unilateral stress of lippacking 5a, 5b, extend the service life of lippacking 5a, 5b, on the other hand all the time
Keep the stable support of countershaft 1, it is to avoid the failure conditions of the outer surface contact wear of through hole 21 and rotating shaft 1, extend whole
The service life of individual product.
Described bearing 9 is rolling bearing or oilless bearing, and when using rolling bearing, rotating shaft 1 and housing 2 through hole 21 have
Well positioning precision is it is ensured that rotating shaft 1 continually and steadily rotates in through hole 21, when the bearing 9 using is oilless bearing
The volume of bearing 9 can be greatly reduced, also significantly reduce the volume of central rotary joint, subtract while ensureing support effect
The light weight of product, also reduces the manufacturing cost of product simultaneously.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to described term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combine in an appropriate manner in any one or more embodiments or example.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited on specification with new technical scope it is necessary to determine its technology according to right
Property scope.
Claims (6)
1. a kind of shield machine central authorities' rotary joint, including the rotating shaft in the housing (2) with through hole (21) and insertion through hole (21)
(1), the inwall of described housing (2) is provided with several annular media slot (3), and the outer wall of described housing (2) offers pipe
Road interface (8), described pipe interface (8) connects with media slot (3), and described rotating shaft (1) is provided with several medium channels
(11) and connect perforation (12), medium channel (11) is connected by the described perforation (12) that connects with corresponding media slot (3), and its feature exists
In: it is provided with an inner seal structure (4) between the adjacent media slot (3) of the upper each two of described housing (2)；
Described inner seal structure (4) includes:
Seal groove (42) and oil-way (41), described seal groove (42) and oil-way (41) are all opened in the interior of housing (2)
On wall, the quantity of described seal groove (42) is two, and the quantity of oil-way (41) is one, described oil-way (41) setting
Between two seal grooves (42)；
Greasing mouth (43), described greasing mouth (43) is opened on the outer wall of described housing (2) and is connected with described oil-way (41)
Logical；
Two lippackings (5a), described two lippackings (5a) are separately mounted in two described seal grooves (42),
The pressure-bearing lip (51a) of described two lippackings (5a) is each back to oil-way (41) setting.
2. as claimed in claim 1 a kind of shield machine with central rotary joint it is characterised in that: on the inwall of housing (2), axle
It is located at the first outside of media slot (3) upwards and be equipped with outer seal configuration (6) positioned at the outside of the media slot (3) of last position,
Described outer seal configuration (6) includes:
Seal groove (45) and oil-way (44), described seal groove (45) and oil-way (44) are all opened in the interior of housing (2)
On wall, the quantity of described seal groove (45) is two, and the quantity of oil-way (44) is one, described oil-way (44) setting
Between two seal grooves (45)；
Greasing mouth (46), described greasing mouth (46) is opened on the outer wall of housing (2) and is connected with described oil-way (44)；
Two lippackings (5b), described two lippackings (5b) are separately mounted in described seal groove (45), described
The pressure-bearing lip (51b) of two lippackings (5b) is all in the face of media slot (3) is arranged.
3. as claimed in claim 2 a kind of shield machine with central rotary joint it is characterised in that: described lippacking (5a,
Material 5b) is common nitrile rubber, folder cloth nitrile rubber or polyurethane.
4. as claimed in claim 2 a kind of shield machine with central rotary joint it is characterised in that: described lippacking (5a,
Pressure-bearing lip (51a, 51b) 5b) is embedded with o shape circle (7).
5. a kind of shield machine as described in any one of claim 1 ~ 4 with central rotary joint it is characterised in that: described through hole (21)
Two ends bearing (9), the inner ring of described bearing (9) and the cylindrical cooperation of rotating shaft (1) are installed.
6. as claimed in claim 5 a kind of shield machine central authorities' rotary joint it is characterised in that: described bearing (9) is the axis of rolling
Hold or oilless bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769796.1U CN205895252U (en) | 2016-07-20 | 2016-07-20 | Shield constructs machine central authorities rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769796.1U CN205895252U (en) | 2016-07-20 | 2016-07-20 | Shield constructs machine central authorities rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895252U true CN205895252U (en) | 2017-01-18 |
Family
ID=57773399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620769796.1U Withdrawn - After Issue CN205895252U (en) | 2016-07-20 | 2016-07-20 | Shield constructs machine central authorities rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205895252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050250A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Central rotary joint for shield tunneling machine |
-
2016
- 2016-07-20 CN CN201620769796.1U patent/CN205895252U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050250A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Central rotary joint for shield tunneling machine |
| CN106050250B (en) * | 2016-07-20 | 2018-08-21 | 江苏腾旋科技股份有限公司 | A kind of central rotary joint of shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170118 Effective date of abandoning: 20180821 |
|
| AV01 | Patent right actively abandoned |