CN2789556Y - Multifunction central rotating connection - Google Patents
Multifunction central rotating connection Download PDFInfo
- Publication number
- CN2789556Y CN2789556Y CN 200520071416 CN200520071416U CN2789556Y CN 2789556 Y CN2789556 Y CN 2789556Y CN 200520071416 CN200520071416 CN 200520071416 CN 200520071416 U CN200520071416 U CN 200520071416U CN 2789556 Y CN2789556 Y CN 2789556Y
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- rotor
- stator
- radial direction
- oil
- oil paths
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Abstract
The utility model discloses a multifunctional central backward rotating joint, which comprises a stator and a rotor, wherein the rotor and the stator are respectively in a movable match and a fixed match on a circumferential direction and an axial direction. The rotor is provided with a plurality of longitudinal oil paths and radical oil paths, and the radical oil paths and the longitudinal oil paths are communicated one by one. The stator is also processed with a plurality of radical oil paths which are respectively communicated with one longitudinal oil path on the rotor by an annular slot. Both ends of one of partial longitudinal oil paths are sealed. The radical oil paths on the upper part of the rotor are communicated with the radical oil paths on the stator by the longitudinal oil paths with sealed ends. Opening parts of the longitudinal oil paths of the other part are arranged on the upper end of the rotor. The upper end of the rotor is provided with a controlling valve block and an electromagnetic valve which is communicated with the longitudinal oil paths on the upper end of the rotor by the controlling valve block. The utility model has the advantages of multiple paths, high strength and reasonable oil path arrangement. The utility model can satisfy mechanical multifunctional requirements and is suitable for the connection between a main oil path of a hydraulic system and each actuating mechanism.
Description
(1) technical field
The utility model relates to a kind of hydraulic element.Be the hydraulic system working connection specifically with each actuator between be connected the multi-functional central swivel coupling of usefulness.
(2) background technique
For ease of being connected between working connection and each actuator, all be provided with central swivel coupling in the liquid system at night.Traditional central swivel coupling is made up of stator and rotor, and stator wherein and rotor are respectively cylindrical shape and cylindrical, is processed with circumferential step on the cylindrical of rotor, and the rotor hypomere inserts in the stator and makes the two be rotatable shape by this circumferential step and matches.Be processed with vertical oil duct of some circles and radial direction oil on the rotor, vertical oil duct wherein is shorter than the length of rotor, so that make its two ends be closed shape.The radial direction oil that is in the circumferential step top is connected with corresponding vertically oil duct upper end, and the radial direction oil that is in below the circumferential step is connected with corresponding vertically oil duct lower end.With also be processed with radial direction oil on the stator of the radial direction oil corresponding position of rotor step below, be connected thereby make between radial direction oil on rotor epimere radial direction oil and the stator.Because this central swivel coupling only has stator and rotor to constitute, be connected between the radial direction oil on the radial direction oil that can only realize the rotor epimere and the stator, make its passage less (generally having only 6～8).As satisfying the multi-functional needs of machinery, just need to realize by external pipe and corresponding increase control valve group and control circuit.Increasing of pipeline will certainly influence the layout of the whole pipeline of hydraulic system, and control system disperseed relatively also.Therefore, the conventional central swivel coupling can't satisfy usage requirement.
In addition, the radial direction oil both sides fixed, be provided with seal arrangement between changeing, the sealing device is included in circular groove of processing on the rotor, and flexible ring and hard friction ring are arranged in the circular groove from inside to outside successively.Hard friction ring wherein closely contacts with stator, prays supporting effect, and makes the prerequisite that leaves certain interval between rotor and the stator be issued to the effect of sealing.But for installing space is extremely limited, structural requirement is compact, root diameter is limited, need to realize the hydraulic system of multiplexing functions again, on rotor, process circular groove, not only can reduce the intensity of rotor greatly, and owing to can have influence on the reasonable arrangement of oil duct.
(3) model utility content
The technical problems to be solved in the utility model provides a kind of multi-functional central swivel coupling.This multi-functional central swivel coupling, passage is many, intensity is high, the oil duct arrangement is reasonable, can satisfy the multi-functional requirement of machinery.
For addressing the above problem, the utility model is taked following technological scheme:
Multi-functional central swivel coupling of the present utility model comprises stator and rotor, and this stator and rotor are respectively cylindrical shape and cylindrical.The one section diameter in the top of rotor is greater than its hypomere, so that form circumferential step on its cylindrical.The hypomere diameter of rotor and the internal diameter of stator be complementary and make the hypomere of rotor insert stator the latter two leave the gap.Be processed with some vertical oil ducts and radial direction oil on the rotor, each radial direction oil is connected with a vertical oil duct respectively.Also be processed with some radial direction oil on the stator, and be processed with circular groove on the corresponding stator inner wall of this radial direction oil, each radial direction oil on the stator is connected with an epitrochanterian vertical oil duct by a circular groove respectively.In epitrochanterian vertical oil duct, a part is in the rotor and its two ends are sealed mutually.The radial direction oil of periphery of rotor step top is connected with radial direction oil on the stator by vertical oil duct of closed at both ends.Its structural feature is that epitrochanterian another part longitudinal oil road oral area is opened in the top and for blind hole.There is the control valve piece rotor upper end, on the control valve piece solenoid valve is arranged, and the inlet/outlet of solenoid valve is connected with the longitudinal oil road oral area of rotor upper end respectively by the control valve piece.There is seal groove the circular groove both sides of stator inner wall, the seal groove inner sealing device.
Take such scheme, have the following advantages:
Because multi-functional central swivel coupling of the present utility model, its epitrochanterian a part of longitudinal oil road oral area are opened in the top and be blind hole.There is the control valve piece rotor upper end, on the control valve piece solenoid valve is arranged, and the inlet/outlet of solenoid valve is connected with the longitudinal oil road junction of rotor upper end respectively by the control valve piece.By means of control valve piece and solenoid valve, can realize the compound of rotor internal oil channel function, make passage increase greatly, can satisfy the usage requirement of various machineries.
Because the annular seal groove of said seal arrangement is opened on the inwall of stator, not only can improve the intensity of rotor again, also can increase the oil duct quantity of rotor, it is more reasonable to make that oil duct ` arranges.
(4) description of drawings
Fig. 1 is a multi-functional central swivel coupling structural representation of the present utility model;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the I point enlarged view of Fig. 2.
(5) embodiment
As shown in Figure 1 and Figure 2, multi-functional central swivel coupling of the present utility model contains stator 12 and rotor 11, and this stator and rotor are respectively cylindrical shape and cylindrical.The one section diameter in the top of rotor 11 is greater than its hypomere, so that form circumferential step thereon between the hypomere.The hypomere diameter of rotor 11 is slightly less than the internal diameter of stator 12, and the two be assembled together the back circumferential step of rotor 11 and upper end of stator 12 are offseted, and rotor 11 can be rotated, and can form the gap at the two.Be processed with a plurality of (concrete quantity is optionally fixed) vertically oil duct 10 and radial direction oil 6 on the rotor 11, each radial direction oil 6 is connected with a vertical oil duct 10 respectively.Also be processed with a plurality of radial direction oil 6 on the stator 12, be processed with circular groove 4 on stator 12 inwalls corresponding with this radial direction oil, each on the stator 12 radially oil 6 is connected with vertical oil duct 10 on the rotor 11 by a circular groove 4 correspondingly.
The vertical oil duct of a part on the rotor 11 10 two ends are sealed mutually, and promptly its two ends do not extend to the end of rotor 11.Vertical oil duct 10 that the radial direction oil 6 of rotor 11 circumferential step tops is sealed mutually by two ends is communicated with the radial direction oil 6 on the stator 12.Vertical oil duct 10 1 ends of another part on the rotor 11 are that the lower end is closed shape, and the upper end extends to end, rotor 11 upper end, to form blind hole.Rotor 11 upper ends are equipped with control valve piece 7, and solenoid valve 8 is installed on the control valve piece 7.Be processed with vertical through holes on the control valve piece 7, this vertical through holes equates with the blind hole quantity of rotor 11 upper ends and is corresponding that the two is the sealing shape by seal ring 9 and is connected.The inlet/outlet of said solenoid valve 8 is connected with corresponding vertical through holes on the control valve piece 7 respectively.
See Fig. 1, Fig. 3, circular groove 4 both sides on stator 12 inwalls are that its upper and lower sides all is processed with seal groove 3, and the sealing groove is provided with seal arrangement along the circumferencial direction processing of rotor 11 inner side surfaces in it.Seal arrangement wherein is made up of hard, wear-resistant ring 1 and flexible ring 2.Said flexible ring 2 places the bottom land of seal groove 3, and hard, wear-resistant ring 1 then places in the flexible ring 2 and its both sides contact with flexible ring 2 outer side surfaces inboard and rotor 11 respectively, and the outer side surface of flexible ring 2 then contacts with the bottom land of seal groove 3.For ease of cooperating of 1 on flexible ring 2 and hard, wear-resistant ring, the outer side surface of hard, wear-resistant ring 1 is processed to concave arc shape along its circumferencial direction.
In addition, be to reduce the wearing and tearing of hard, wear-resistant ring 1 inner side surface, be processed with the little groove 13 of multiple tracks annular, to reduce the area of contact between itself and rotor 11 outer side surfaces at the inner side surface of hard, wear-resistant ring 1.
For ease of installation of the present utility model, the fixed block 5 that is used for fixing also is installed in the upper outside of stator 12.
Claims (4)
1. multi-functional central swivel coupling comprises stator (12) and rotor (11), and this stator and rotor are respectively cylindrical shape and cylindrical, and the one section diameter in the top of rotor (11) is greater than its hypomere, so that form circumferential step on its cylindrical; The internal diameter of the hypomere diameter of rotor (11) and stator (12) be complementary and make the hypomere of rotor (11) insert stator (12) the latter two leave the gap; Be processed with some vertical oil ducts (10) and radial direction oil (6) on the rotor (11), each radial direction oil (6) is connected with a vertical oil duct (10) respectively; Also be processed with some radial direction oil (6) on the stator (12), with be processed with circular groove (4) on the corresponding stator of this radial direction oil (12) inwall, each radial direction oil (6) on the stator (12) is connected with a vertical oil duct (10) on the rotor (11) by a circular groove (4) respectively; In vertical oil duct (10) on the rotor (11), a part is in the rotor (11) and its two ends are sealed mutually; The radial direction oil (6) of rotor (11) circumferential step top is connected with radial direction oil (6) on the stator (12) by vertical oil duct (10) of closed at both ends; It is characterized in that the vertical oil duct of another part (10) oral area on the rotor (11) is opened in the top and be blind hole; There is control valve piece (7) rotor (11) upper end, and solenoid valve (8) is arranged on the control valve piece (7), and the inlet/outlet of solenoid valve (8) is connected with vertical oil duct (10) oral area of rotor (11) upper end respectively by control valve piece (7);
There is seal groove (3) circular groove (4) both sides of stator (12) inwall, seal groove (3) inner sealing device.
2. multi-functional central swivel coupling according to claim 1 is characterized in that said seal arrangement is made up of hard, wear-resistant ring (1) and flexible ring (2); Wherein, the inside and outside side of hard, wear-resistant ring (1) contacts with the outer side surface and flexible ring (2) inboard of rotor (11) respectively, and the outer side surface of flexible ring (2) contacts with the bottom land of seal groove (3).
3. multi-functional central swivel coupling according to claim 2 is characterized in that on the interior circle of hard, wear-resistant ring (1) annular little groove (13) being arranged.
4. according to claim 2 or 3 described multi-functional central swivel couplings, the outer side surface that it is characterized in that hard, wear-resistant ring (1) is a concave arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071416 CN2789556Y (en) | 2005-05-02 | 2005-05-02 | Multifunction central rotating connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071416 CN2789556Y (en) | 2005-05-02 | 2005-05-02 | Multifunction central rotating connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789556Y true CN2789556Y (en) | 2006-06-21 |
Family
ID=36789887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520071416 Expired - Fee Related CN2789556Y (en) | 2005-05-02 | 2005-05-02 | Multifunction central rotating connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789556Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100501215C (en) * | 2007-11-30 | 2009-06-17 | 姚运文 | Centre revolving joint of multi-oilway crane |
| CN101216135B (en) * | 2008-01-14 | 2010-06-09 | 江阴市长龄液压机具厂 | Multi-oil path large-sized machinery hydraulic central swivel joint |
| CN101865340A (en) * | 2010-06-10 | 2010-10-20 | 江苏鼎晟液压有限公司 | Electrical-hydraulic center-rotating joint |
| CN101893144A (en) * | 2010-06-25 | 2010-11-24 | 徐州天地重型机械制造有限公司 | Center swivel joint for turbojet fire engine |
| CN102042451A (en) * | 2010-10-15 | 2011-05-04 | 红云红河烟草(集团)有限责任公司 | Dual-fluid channel rotary joint |
| CN102042450A (en) * | 2010-12-06 | 2011-05-04 | 长沙中联消防机械有限公司 | Centre revolving joint for engineering machinery |
| TWI384078B (en) * | 2009-01-15 | 2013-02-01 | China Steel Corp | An adapter for the eddy current detection device |
| CN103206585A (en) * | 2013-04-11 | 2013-07-17 | 北京航天控制仪器研究所 | Rotary seal joint for turntable thermostat refrigeration |
| CN103993959A (en) * | 2013-12-06 | 2014-08-20 | 沪东重机有限公司 | Multifunctional joint for diesel engine |
| 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 |
| CN108458184A (en) * | 2017-12-28 | 2018-08-28 | 无锡南理工科技发展有限公司 | Compression roller of granulator oiling rotary joint |
| CN109099163A (en) * | 2017-06-21 | 2018-12-28 | 徐工集团工程机械股份有限公司 | Sealing ring, multichannel center-rotary joint and walking type excavator |
-
2005
- 2005-05-02 CN CN 200520071416 patent/CN2789556Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100501215C (en) * | 2007-11-30 | 2009-06-17 | 姚运文 | Centre revolving joint of multi-oilway crane |
| CN101216135B (en) * | 2008-01-14 | 2010-06-09 | 江阴市长龄液压机具厂 | Multi-oil path large-sized machinery hydraulic central swivel joint |
| TWI384078B (en) * | 2009-01-15 | 2013-02-01 | China Steel Corp | An adapter for the eddy current detection device |
| CN101865340A (en) * | 2010-06-10 | 2010-10-20 | 江苏鼎晟液压有限公司 | Electrical-hydraulic center-rotating joint |
| CN101893144A (en) * | 2010-06-25 | 2010-11-24 | 徐州天地重型机械制造有限公司 | Center swivel joint for turbojet fire engine |
| CN102042451A (en) * | 2010-10-15 | 2011-05-04 | 红云红河烟草(集团)有限责任公司 | Dual-fluid channel rotary joint |
| CN102042450B (en) * | 2010-12-06 | 2012-06-27 | 长沙中联消防机械有限公司 | Centre revolving joint for engineering machinery |
| CN102042450A (en) * | 2010-12-06 | 2011-05-04 | 长沙中联消防机械有限公司 | Centre revolving joint for engineering machinery |
| CN103206585A (en) * | 2013-04-11 | 2013-07-17 | 北京航天控制仪器研究所 | Rotary seal joint for turntable thermostat refrigeration |
| CN103206585B (en) * | 2013-04-11 | 2015-02-11 | 北京航天控制仪器研究所 | Rotary seal joint for turntable thermostat refrigeration |
| CN103993959A (en) * | 2013-12-06 | 2014-08-20 | 沪东重机有限公司 | Multifunctional joint for diesel engine |
| CN103993959B (en) * | 2013-12-06 | 2016-03-09 | 沪东重机有限公司 | A kind of use for diesel engine multifunction conjunction |
| 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 |
| CN109099163A (en) * | 2017-06-21 | 2018-12-28 | 徐工集团工程机械股份有限公司 | Sealing ring, multichannel center-rotary joint and walking type excavator |
| CN108458184A (en) * | 2017-12-28 | 2018-08-28 | 无锡南理工科技发展有限公司 | Compression roller of granulator oiling rotary joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 |