CN201575250U - Novel swivel joint provided with soft floating ring sealing structure - Google Patents
Novel swivel joint provided with soft floating ring sealing structure Download PDFInfo
- Publication number
- CN201575250U CN201575250U CN2009202732206U CN200920273220U CN201575250U CN 201575250 U CN201575250 U CN 201575250U CN 2009202732206 U CN2009202732206 U CN 2009202732206U CN 200920273220 U CN200920273220 U CN 200920273220U CN 201575250 U CN201575250 U CN 201575250U
- Authority
- CN
- China
- Prior art keywords
- floating ring
- housing
- running shaft
- ring
- inwall
- 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
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Abstract
The utility model relates to a swivel joint provided with a soft floating ring sealing structure. A rotating shaft is mounted in a housing in a freely rotating manner through a bearing; a floating ring is arranged between the rotating shaft and the housing; the outer surface of the floating ring is propped against the inner wall of the housing through an O-shaped sealing ring; the inner wall of the floating ring is matched with the rotating shaft; a ring groove opposite the central part of the outer surface of the floating ring is formed on the inner wall of the housing in the circumferential direction, and an oil hole communicated with the ring groove is formed on the housing in the radial direction; a groove is formed at the central part of the inner wall of the floating ring in the circumferential direction, and a through-hole communicated with the groove on the inner wall is formed on the floating ring in the radial direction; a radial hole communicated with the groove on the inner wall of the floating ring is formed on the rotating shaft in the radial direction, and an axial hole communicated with the radial hole is formed on the rotating shaft in the axial direction; and the oil hole on the housing, and the radial and the axial holes on the rotating shaft form a channel through the through-hole on the floating ring. The soft floating ring is arranged between the rotating shaft and the housing, thereby ensuring the axial seal clearance of the rotating shaft and avoiding direct friction between the rotating shaft and the inner wall of the floating ring.
Description
Technical field
The utility model relates to a kind of new type rotation joint, be specifically related to a kind of device that pressurized fluid media in the pressure tube is connected to the rotating machinery pressure system, the fluid with certain pressure that is used for flowing in the static pipeline does not have to be transported to continuously with leaking realizes power transmission in the rotary component, belong to the rotating machinery technical field.
Background technique
Swivel coupling is widely used in carrying to various rotating machineries the occasion of liquid medium, the fluid with certain pressure that flows in the static pipeline is not had continuously with leaking be transported in the rotary component, realizes power transmission.
The swivel coupling of using is the swivel coupling with axial seal structure at present, exist complex structure, accuracy of manufacturing require high, working life is short, leakage rate is big, problem such as easily stuck between running shaft and the frame, cause that maintenance workload is big, the relative permitivity amount big, the adverse consequences of befouling environment, can influence the manufacturing efficiency of manufacturing mechanism when serious.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of long lifetime of high rotating speed occasion, low new type rotation joint that leaks, can not be stuck of being applicable to is provided.
The purpose of this utility model is achieved through the following technical solutions:
New type rotation joint with flexible float ring sealing structure, comprise running shaft, housing, pair of flexible floating ring, O-ring seals and bearing, running shaft is installed in the housing by the bearing rotation freely, the left end junction and the right-hand member junction of running shaft and housing are equipped with seal arrangement, characteristics are: be provided with floating ring between described running shaft and the housing, the outer surface of floating ring and the inwall of housing are inconsistent by O-ring seals, and the inwall of floating ring matches with running shaft; The inwall of described housing is along circumferentially being provided with and the relative annular groove in floating ring outer surface middle part, and on housing, radially have a hydraulic fluid port that communicates with annular groove, the middle part of described floating ring inwall is along circumferentially being provided with groove, and on floating ring, radially have a through hole that communicates with inboard wall groove, radially have the radial hole that communicates with the floating ring inboard wall groove on the described running shaft, have the axial bore that connects with radial hole on the running shaft vertically, thereby the hydraulic fluid port on the housing is through the through hole on the floating ring and radial hole on the running shaft and axial bore formation path.
Further, above-mentioned new type rotation joint with flexible float ring sealing structure, be provided with the twice floating ring between described running shaft and the housing, the outer surface of per pass floating ring is all inconsistent with the inwall of housing, and the inwall of per pass floating ring all matches with running shaft; The inwall of described housing is along circumferentially being provided with and the relative annular groove in per pass floating ring outer surface middle part, and on housing, radially have a hydraulic fluid port that communicates with the per pass annular groove, the middle part of per pass floating ring inwall is along circumferentially being provided with groove, and on the per pass floating ring, radially have a through hole that communicates with inboard wall groove, radially have the radial hole that communicates with per pass floating ring inboard wall groove on the described running shaft, have the car that connects with each radial hole on the described running shaft vertically by to the hole.
Further, the above-mentioned new type rotation joint with flexible float ring sealing structure is provided with the O RunddichtringO between the outer surface of described floating ring and the inwall of housing.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
1. the utility model is by being provided with the seal clearance that flexible float ring guarantees that running shaft is axial between running shaft and housing, both avoided the direct friction of running shaft and floating ring inwall, play seal action again, make new type rotation joint have long working life;
2. floating ring is between running shaft and the stationary housing, when pressure oil enters the passage of stationary housing and floating ring formation by joint, O RunddichtringO effect to floating ring outer surface both sides has certain side-thrust, side-thrust makes the O RunddichtringO produce certain axial flattening deformation, thereby adjusting floating ring, eliminate the influence of floating ring gravity, have flexible aligning function, guaranteed the gap between floating ring inwall and the running shaft;
3. this new type rotation joint is easily manufactured, is applicable to high rotating speed occasion, have the long lifetime, low leak, can not be stuck etc. remarkable advantage.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: structural representation of the present utility model.
The implication of each reference character sees the following form among the figure:
| Reference character | Implication | Reference character | Implication | | Implication | |
| 1 | |
2 | |
3 | Lip- |
|
| 4 | Saturating |
5 | |
6 | Bearing | |
| 7 | |
8 | Floating ring | 9 | O- |
|
| 10 | Bearing | 11 | |
12 | |
|
| 13 | Shaft end ring |
Embodiment
As shown in Figure 1, new type rotation joint with flexible float ring sealing structure, comprise running shaft 1, housing 7, bearing 6, bearing 10 and pair of flexible floating ring 8, running shaft 1 is installed in the housing 7 freely by right-hand member bearing 6,10 rotations of left end bearing, be provided with floating ring 8 between running shaft 1 and the housing 7, the inwall of the outer surface of floating ring 8 and housing 7 is inconsistent, and between the inwall of the outer surface of floating ring and housing, being provided with O RunddichtringO 9, the inwall of floating ring 8 matches with running shaft 1; The inwall of housing 7 is along circumferentially being provided with and the relative annular groove in floating ring outer surface middle part, and on housing 7, radially have a hydraulic fluid port that communicates with annular groove, the middle part of floating ring inwall is along circumferentially being provided with groove, and on floating ring, radially have a through hole that communicates with inboard wall groove, radially have the radial hole that communicates with the floating ring inboard wall groove on the running shaft 1, have the axial bore that connects with radial hole on the running shaft vertically, thereby the hydraulic fluid port on the housing is through the through hole on the floating ring and radial hole on the running shaft and axial bore formation path.
Usually, be provided with the twice floating ring between running shaft 1 and the housing 7, the outer surface of per pass floating ring is all inconsistent with the inwall of housing, and the inwall of per pass floating ring all matches with running shaft; The inwall of housing is along circumferentially being provided with and the relative annular groove in per pass floating ring outer surface middle part, and on housing, radially have a hydraulic fluid port (hydraulic fluid port C, hydraulic fluid port D) that communicates with the per pass annular groove, the middle part of per pass floating ring inwall is along circumferentially being provided with groove, and on the per pass floating ring, radially have a through hole that communicates with inboard wall groove, radially have the radial hole that communicates with per pass floating ring inboard wall groove on the running shaft, have the axial bore that connects with each radial hole on the running shaft vertically.
The left end junction of running shaft and housing is provided with seal arrangement, and the left end of running shaft 1 is provided with shaft end ring 13, and stifle 12 connects with left end bearing 10, and stifle 12 has sealing plate 11 by being bolted on the housing 7 between stifle 12 and the housing 7.The right-hand member junction of running shaft and housing is provided with seal arrangement, saturating lid 4 connects with right-hand member bearing 6, covers 4 thoroughly by being bolted on the housing 7, cover thoroughly 4 and housing 7 between sealing plate 5 is arranged, be provided with lip-type packing 3 between saturating lid 4 and the running shaft 1, gland 2 is connected in and covers on 4.Have drain tap A and drain tap B on housing 7, drain tap A communicates with the oil leab of left end bearing 10, and drain tap B communicates with the oil leab of right-hand member bearing 6.
This structure adopts the design of mechanical clearance sealing principle, and running shaft 1 links to each other with running shaft on the rotating machinery, by the rotating machinery drive and rotate.Housing 7 is the general assembly basis of swivel coupling, and housing 7 is supported on the running shaft 1 by two bearings (right-hand member bearing 6, left end bearing 10).With the rotating machinery rotation, other part stationary is motionless under bearings for running shaft 1.By between running shaft 1 and housing 7, the seal clearance that flexible float ring 8 guarantees that running shaft is axial being set, thereby the fluid that is transmitted is sealed.With the rotating machinery rotation, other part stationary is motionless under bearings for running shaft 1.Floating ring 8 is between running shaft 1 and the stationary housing 7, floating ring inwall and running shaft seal by micro-gap, the floating ring outer surface connects by O RunddichtringO 9 and housing, when pressure oil enters the passage of housing and floating ring formation by joint, O RunddichtringO effect to floating ring outer surface both sides has certain side-thrust, side-thrust makes O RunddichtringO 9 produce certain axial flattening deformation, thereby can regulate floating ring, eliminate the influence of floating ring gravity, has flexible aligning function, guaranteed the gap between floating ring inwall and the running shaft, running shaft is neither contacted with floating ring, played seal action again, the flowing medium with certain pressure is by hydraulic fluid port (hydraulic fluid port C, hydraulic fluid port D) through housing, floating ring is transported in the medium channel of running shaft, and the continuous nothing of finishing fluid is leaked conveying.
Being provided with of floating ring guaranteed the even of running shaft and floating ring inwall micro-gap, both avoided causing the direct friction of running shaft and floating ring inwall, plays seal action again, makes new type rotation joint have long working life.Running shaft and floating ring have adopted the material of two kinds of different hardness to carry out the friction pair combination respectively, have improved wear resistance, have prolonged the working life of swivel coupling.
In sum, the utility model is provided with the flexible float ring with aligning function by employing and guarantees the seal clearance that running shaft is axial between running shaft and stationary housing, both avoided the direct friction of running shaft and floating ring inwall, play seal action again, overcome existing swivel coupling running shaft and housing defectives such as stuck phenomenon have easily taken place, this new type rotation joint is easily manufactured, is applicable to high rotating speed occasion, has remarkable advantages such as long lifetime, low leakage.
What need understand is: the above only is a preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the new type rotation joint that has flexible float ring sealing structure, comprise running shaft, housing, floating ring, O-ring seals and bearing, running shaft is installed in the housing by the bearing rotation freely, the left end junction and the right-hand member junction of running shaft and housing are equipped with seal arrangement, it is characterized in that: be provided with floating ring between described running shaft and the housing, the outer surface of floating ring and the inwall of housing are inconsistent by O-ring seals, and the inwall of floating ring matches with running shaft; The inwall of described housing is along circumferentially being provided with and the relative annular groove in floating ring outer surface middle part, and on housing, radially have a hydraulic fluid port that communicates with annular groove, the middle part of described floating ring inwall is along circumferentially being provided with groove, and on floating ring, radially have a through hole that communicates with inboard wall groove, radially have the radial hole that communicates with the floating ring inboard wall groove on the described running shaft, have the axial bore that connects with radial hole on the running shaft vertically, thereby the hydraulic fluid port on the housing is through the through hole on the floating ring and radial hole on the running shaft and axial bore formation path.
2. the new type rotation joint with flexible float ring sealing structure according to claim 1, it is characterized in that: be provided with the twice floating ring between described running shaft and the housing, the outer surface of per pass floating ring is all inconsistent by O-ring seals with the inwall of housing, and the inwall of per pass floating ring all matches with running shaft; The inwall of described housing is along circumferentially being provided with and the relative annular groove in per pass floating ring outer surface middle part, and on housing, radially have a hydraulic fluid port that communicates with the per pass annular groove, the middle part of per pass floating ring inwall is along circumferentially being provided with groove, and on the per pass floating ring, radially have a through hole that communicates with inboard wall groove, radially have the radial hole that communicates with per pass floating ring inboard wall groove on the described running shaft, have the axial bore that connects with each radial hole on the described running shaft vertically.
3. the new type rotation joint with flexible float ring sealing structure according to claim 1 is characterized in that: be provided with the O RunddichtringO between the outer surface of described floating ring and the inwall of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202732206U CN201575250U (en) | 2009-12-11 | 2009-12-11 | Novel swivel joint provided with soft floating ring sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202732206U CN201575250U (en) | 2009-12-11 | 2009-12-11 | Novel swivel joint provided with soft floating ring sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575250U true CN201575250U (en) | 2010-09-08 |
Family
ID=42695127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202732206U Expired - Fee Related CN201575250U (en) | 2009-12-11 | 2009-12-11 | Novel swivel joint provided with soft floating ring sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575250U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782621A (en) * | 2016-04-29 | 2016-07-20 | 中铁工程装备集团有限公司 | Floating connection device for centre revolving joint of shield machine |
| CN106050248A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Soil chamber sealing device for tunnel boring machine |
| CN110513555A (en) * | 2019-08-23 | 2019-11-29 | 江苏腾旋科技股份有限公司 | A kind of wind power plant rotary joint |
| CN114024190A (en) * | 2021-10-27 | 2022-02-08 | 深圳市杰普特光电股份有限公司 | Laser output head and laser equipment |
| CN114024190B (en) * | 2021-10-27 | 2024-04-30 | 深圳市杰普特光电股份有限公司 | Laser output head and laser equipment |
-
2009
- 2009-12-11 CN CN2009202732206U patent/CN201575250U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782621A (en) * | 2016-04-29 | 2016-07-20 | 中铁工程装备集团有限公司 | Floating connection device for centre revolving joint of shield machine |
| CN106050248A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Soil chamber sealing device for tunnel boring machine |
| CN110513555A (en) * | 2019-08-23 | 2019-11-29 | 江苏腾旋科技股份有限公司 | A kind of wind power plant rotary joint |
| CN114024190A (en) * | 2021-10-27 | 2022-02-08 | 深圳市杰普特光电股份有限公司 | Laser output head and laser equipment |
| CN114024190B (en) * | 2021-10-27 | 2024-04-30 | 深圳市杰普特光电股份有限公司 | Laser output head and laser equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20171211 |