CN102278552B - Multifunctional center rotary joint - Google Patents
Multifunctional center rotary joint Download PDFInfo
- Publication number
- CN102278552B CN102278552B CN201010196700.4A CN201010196700A CN102278552B CN 102278552 B CN102278552 B CN 102278552B CN 201010196700 A CN201010196700 A CN 201010196700A CN 102278552 B CN102278552 B CN 102278552B
- Authority
- CN
- China
- Prior art keywords
- rotation
- slip ring
- electrical equipment
- rotary joint
- solid
- 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
Links
- 239000007787 solid Substances 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- -1 fixed cover 5 Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/04—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Manipulator (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a multifunctional center rotary joint, relating to a center rotary joint in the field of hydraulic transmission. The multifunctional center rotary joint comprises an upper part, a middle part and a lower part which are homocentric; a main body part of the center rotary joint is arranged at the lower part and used for transmitting at least two hydraulic oil lines; electrical appliance slip rings are arranged at the middle part and used for transmitting at least two paths of electric signals; an insulating pad is arranged between every two electrical appliance slip rings, and the outer circle of each electrical appliance slip ring is provided with a groove for accommodating an elastic electroconductive fork; the electrical appliance slip rings are fixedly connected with a rotary body, and the elastic electroconductive forks are fixedly connected with a fixed sleeve, so that when the rotary body rotates relative to the fixed sleeve, the electrical appliance slip rings and the elastic electroconductive forks are always in an electroconductive connection state. The multifunctional center rotary joint comprises three parts, the lower part is the main body part of the center rotary joint and used for transmitting a plurality of hydraulic oil lines; the middle part is the electrical appliance slip rings used for transmitting a plurality of electric signals, and the upper part is an angle encoder used for performing real-time monitoring on operation parts of an entire machine. The multifunctional center rotary joint can be used for realizing seamless communication between the electrical appliance appliance signals and the hydraulic oil lines under a rotary state.
Description
Technical field
The present invention relates to a kind of centre revolving joint of hydraulic transmission field, refer more particularly to the technology simultaneously transmitting hydraulic pressure signal and electrical signal in hydraulic system in rotary course.
Background technique
At present, in engineering machinery, hydraulic transmission technology is widely used, and along with the continuous expansion of product function, improving constantly of automaticity, more and more higher to the requirement of hydraulic element, function is more complete.Every engineering machinery having revolute function, as truck crane, crawler crane, high-altitude operation vehicle etc., all needs to transmit many hydraulic circuits in turning course, and can not alter logical between each oil circuit and leak.Existing centre revolving joint can only carry several hydraulic circuits in rotary course, and along with the development of modern science and technology, not only to complete the requirement of host activity function, also require to monitor in real time the whole working procedure of main frame, as arm position, highly, the information such as the weight of lifting need show on a display screen, in this case, the centre revolving joint transmitting separately oil circuit just can not meet the demands.New centre revolving joint not only can transmit many hydraulic circuits in rotary course, can also transmit many electrical signal simultaneously, meet the control overflow of complete machine.
Summary of the invention
The present invention is on the basis of the centre revolving joint of existing independent transmission oil circuit, by cleverly electrical equipment slip ring and angular encoder being reasonably combined into an entirety, the Multifunctional center rotary joint of formation.In rotary course, not only can transmit many hydraulic circuits simultaneously, many electrical signal can also be transmitted, and by angular encoder, can monitor in real time whole working procedure.
Technological scheme of the present invention is: be made up of concentric upper, middle and lower part, bottom is used to the main body part of the centre revolving joint transmitting at least two hydraulic circuits, middle part is used to transmit at least two path signal electrical equipment slip ring, top is used to monitor angular encoder in real time to the running gear of complete machine, described main body part comprises fixed cover and the solid of rotation of sheathed with one heart and mutual liquid sealing revolution connection, described solid of rotation center is provided with the through hole at least two path signal circuit described in accommodating, at least two hydraulic circuit passages described in being also provided with around described through hole, the lower end of described passage is located on described solid of rotation bottom surface, the upper end of described passage is located on the side of described solid of rotation, and offer a circle groove around described passage upper end level, on described fixed cover sidewall, the height of corresponding described groove is provided with oily interface, when solid of rotation is relatively rotated with fixed cover, arbitrarily angled lower channel is all connected with described oily interface, described electrical equipment slip ring is provided with felt pad each other, and the cylindrical of electrical equipment slip ring is provided with the groove pitched for accommodating elastic conduction, described electrical equipment slip ring and described solid of rotation are fixedly linked, and described elastic conduction fork is fixedly linked with described fixed cover, and when solid of rotation is rotated relative to fixed cover, electrical equipment slip ring and elastic conduction are pitched and be in conduction coupled condition all the time.
Rotating seal is provided with between the adjacent grooves of described solid of rotation.
Centre revolving joint of the present invention is made up of three parts, and bottom is the main body part of centre revolving joint, is used for transmitting many hydraulic circuits; Centre is electrical equipment slip ring, is used for transmitting many electrical signal, and top is angular encoder, is used for monitoring in real time the running gear of complete machine.The present invention can realize electrical signal, hydraulic circuit " without the seam " under turn state and be communicated with.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
In figure, 1 is electrical equipment slip ring, and 2 is connecting plates, and 3 is lands, and 4 is rotating seals, and 5 is fixed covers, and 6 is guide rings, and 7 is support rings, and 8 is solid of rotation, and 9 is connect bearing pin, and 10 is connecting sleeves, and 11 is mounting plates, and 12 is angular encoders;
Fig. 2 is the worm's eye view of Fig. 1
In figure, 13 is through holes, and 14 is lower ends of passage.
Fig. 3 is schematic diagram of the present invention
Embodiment
The present invention as shown in Figure 1, 2, is made up of concentric upper, middle and lower part, bottom is used to the main body part of the centre revolving joint transmitting at least two hydraulic circuits, middle part is used to transmit at least two path signal electrical equipment slip ring 1, top is used to monitor angular encoder 12 in real time to the running gear of complete machine, described main body part comprises fixed cover 5 and the solid of rotation 8 of sheathed with one heart and mutual liquid sealing revolution connection, described solid of rotation 8 center is provided with the through hole 13 at least two path signal circuit described in accommodating, at least two hydraulic circuit passages described in being also provided with around described through hole 13, the lower end 14 of described passage is located on the bottom surface of described solid of rotation 8, the upper end of described passage is located on the side of described solid of rotation 8, and offer a circle groove around described passage upper end level, on described fixed cover 5 sidewall, the height of corresponding described groove is provided with oily interface, when solid of rotation 8 is relatively rotated with fixed cover 5, arbitrarily angled lower channel is all connected with described oily interface, described electrical equipment slip ring 1 is provided with felt pad each other, and the cylindrical of electrical equipment slip ring 1 is provided with the groove pitched for accommodating elastic conduction, described electrical equipment slip ring 1 is fixedly linked with described solid of rotation 8, and described elastic conduction fork is fixedly linked with described fixed cover 5, and when solid of rotation 8 is rotated relative to fixed cover 5, electrical equipment slip ring 1 and elastic conduction are pitched and be in conduction coupled condition all the time.
Rotating seal 4 is provided with between the adjacent grooves of described solid of rotation 8.
During making, described centre revolving joint main body is primarily of component compositions such as fixed cover 5, solid of rotation 8, connecting plate 2, tie-plate 3, piston rotating seals 4, fixed cover 5 is provided with the interface for oil circuit of getting on the bus, and there is a through hole at center, allows the electric wire of some roads transmission of electric signals pass through.Solid of rotation 8 is provided with some asphalt channels, and arranges the interface for oil circuit of getting off in lower end, is also provided with many seal grooves, loads onto piston rotating seal 4, ensure that each oil circuit can seal mutually in turning course on solid of rotation 8 surface.Joining plate 2 is used for connecting solid of rotation 8 and the bottom conductive hoop of electrical equipment slip ring 1, realizes the connection of lower circuit by connecting bearing pin 9, and tie-plate 3 is used for being connected and fixed the mounting plate of cover 5 and electrical equipment slip ring 1, and each parts bolt links into an integrated entity.Guide ring 6 and supporting ring 7 select wear-resisting and that surface friction drag is little special material to make, thus can reducing friction resistance, the advantages such as running torque is little, and can extend the working life of piston rotating seal.
Described electrical equipment slip ring 1 adopts overlapping structure.Because the requirement of dissimilar engineering machinery to circuit quantity is different, owing to adopting overlapping structure, just can combines easily, meet the requirement of various engineering machinery.Each channel circuit all conducts electricity shift fork by bottom conductive hoop and top and forms, and is separated between every layer by insulator, and integral by Bolt Connection.There is protective housing outside, and upper and lower circuit delivery outlet all has rubber parts to seal, and the inner body of protective device slip ring exempts from pollution, thus can ensure that Multifunctional center rotary joint works under severe operating mode.
Described angular encoder 12 is a kind of electronic parts and components, is used for exporting the CRANK PULSES of rotary component, by the cpu system of main frame, monitors in real time Operation Conditions.Angular encoder 12 forms primarily of stator and the large parts of rotor two; Stator is connected with the conduction pull-fork assembly of electrical equipment slip ring 1 by mounting plate 11, and rotor is connected with the bottom conductive hoop of electrical equipment slip ring 1 by connecting sleeve 10, and each parts bolt connects into an entirety.
Working principle of the present invention: this shows, the major function of lower body component is keep many hydraulic circuit passages in rotary course unimpeded, owing to there being rotating seal, can ensure that each oil circuit can not be altered logical mutually.Middle electrical equipment slip ring 1, major function is keep many circuit in rotary course unimpeded, has insulator to separate, can ensure not interfere with each other between each circuit between every bar circuit.The angular encoder 12 on top, because its stationary part is connected with the conduction pull-fork assembly of electrical equipment slip ring 1 by installing pole 11, and rotor portion is connected so in complete machine rotary course by connecting sleeve with the conductive member of electrical equipment slip ring 1, can moving situation be changed into electrical signal, by the cpu system of main frame, Operation Conditions is monitored in real time.Fig. 3 is the effect schematic diagram formed for 8 passage oil circuits, 22 channel circuits, when rotary work, remains above-mentioned oil circuit, circuit is connected.
Claims (2)
1. a Multifunctional center rotary joint, is made up of concentric upper, middle and lower part, bottom is used to the main body part of the centre revolving joint transmitting at least two hydraulic circuits, middle part is used to transmit at least two path signal electrical equipment slip ring, top is used to monitor angular encoder in real time to the running gear of complete machine, it is characterized in that, described main body part comprises fixed cover and the solid of rotation of sheathed with one heart and mutual liquid sealing revolution connection, described solid of rotation center is provided with the through hole at least two path signal circuit described in accommodating, at least two hydraulic circuit passages described in being also provided with around described through hole, the lower end of described passage is located on described solid of rotation bottom surface, the upper end of described passage is located on the side of described solid of rotation, and offer a circle groove around described passage upper end level, on described fixed cover sidewall, the height of corresponding described groove is provided with oily interface, when solid of rotation is relatively rotated with fixed cover, arbitrarily angled lower channel is all connected with described oily interface, described electrical equipment slip ring is provided with felt pad each other, and the cylindrical of electrical equipment slip ring is provided with the groove pitched for accommodating elastic conduction, described electrical equipment slip ring and described solid of rotation are fixedly linked, and described elastic conduction fork is fixedly linked with described fixed cover, and when solid of rotation is rotated relative to fixed cover, electrical equipment slip ring and elastic conduction are pitched and be in conduction coupled condition all the time, keep the unimpeded of many circuit,
Angular encoder is made up of stator and rotor, and stator is connected with the conduction pull-fork assembly of electrical equipment slip ring by mounting plate, and rotor is connected with the bottom conductive hoop of electrical equipment slip ring by connecting sleeve, connects into an entirety with bolt.
2. Multifunctional center rotary joint according to claim 1, is characterized in that, is provided with rotating seal between the adjacent grooves of described solid of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010196700.4A CN102278552B (en) | 2010-06-10 | 2010-06-10 | Multifunctional center rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010196700.4A CN102278552B (en) | 2010-06-10 | 2010-06-10 | Multifunctional center rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102278552A CN102278552A (en) | 2011-12-14 |
| CN102278552B true CN102278552B (en) | 2015-07-15 |
Family
ID=45104175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010196700.4A Expired - Fee Related CN102278552B (en) | 2010-06-10 | 2010-06-10 | Multifunctional center rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102278552B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461143B (en) * | 2014-04-15 | 2019-03-15 | 凯斯纽荷兰(中国)管理有限公司 | Swivel joint with hydraulic position signal |
| CN104048176B (en) * | 2014-06-03 | 2017-06-06 | 江苏龙擎动力科技股份有限公司 | A kind of portable lamp car for preventing oil circuit pipeline from winding |
| CN104048179B (en) * | 2014-06-03 | 2018-02-23 | 江苏龙擎动力科技股份有限公司 | The portable lamp car that a kind of illumination lamp disk can arbitrarily rotate |
| CN104150380B (en) * | 2014-08-25 | 2016-08-24 | 湖南大汉起重科技有限公司 | A kind of transmitting axle force type centre revolving joint |
| CN104319584B (en) * | 2014-09-15 | 2016-11-30 | 中航光电科技股份有限公司 | Electric rotary connector |
| CN106340784B (en) * | 2016-10-26 | 2019-09-17 | 晋江市铠锋制鞋机械有限公司 | A kind of gas-liquid electricity mixing slip ring assembly and its application |
| CN108923216A (en) * | 2018-06-29 | 2018-11-30 | 摩腾科技（上海）有限公司 | Oily electric slip ring |
| CN109340200B (en) * | 2018-11-29 | 2020-08-28 | 中联重科股份有限公司 | Hydraulic transmission control oil way, hydraulic transmission control method and engineering machinery |
| CN110513554A (en) * | 2019-08-21 | 2019-11-29 | 江苏长龄液压股份有限公司 | An Intelligent Central Rotary Joint |
| CN113217728B (en) * | 2021-04-20 | 2022-09-30 | 中国电子科技集团公司第三十八研究所 | Electro-hydraulic co-body rotary joint |
| CN114152914B (en) * | 2021-12-14 | 2025-03-11 | 南京天朗防务科技有限公司 | A photoelectric and hydraulic integrated slip ring for high-precision angle measurement |
| CN114413747A (en) * | 2022-01-25 | 2022-04-29 | 中国船舶重工集团公司第七二四研究所 | Integrated comprehensive medium ring with high-precision angle measurement function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177869A (en) * | 1978-04-21 | 1979-12-11 | Dresser Industries, Inc. | Swivel joint for a vehicle |
| JP3225239B2 (en) * | 1999-10-12 | 2001-11-05 | 株式会社森川ゲージ製作所 | Rotary joint |
| CN2751473Y (en) * | 2004-12-06 | 2006-01-11 | 徐州工程机械科技股份有限公司徐工研究院 | Multi-path central rotation joint for water/electricity/liquid |
| CN201024045Y (en) * | 2007-03-29 | 2008-02-20 | 徐州重型机械有限公司 | Throttle control isolated central rotary joint combination device |
| CN201495574U (en) * | 2009-07-10 | 2010-06-02 | 江阴市长龄液压机具厂 | Hydraulic center rotation connector with electric brush |
| CN201706107U (en) * | 2010-06-10 | 2011-01-12 | 江苏鼎晟液压有限公司 | Multifunctional centre revolving joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3010122B2 (en) * | 1994-06-10 | 2000-02-14 | 株式会社タダノ | Cable reel |
-
2010
- 2010-06-10 CN CN201010196700.4A patent/CN102278552B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177869A (en) * | 1978-04-21 | 1979-12-11 | Dresser Industries, Inc. | Swivel joint for a vehicle |
| JP3225239B2 (en) * | 1999-10-12 | 2001-11-05 | 株式会社森川ゲージ製作所 | Rotary joint |
| CN2751473Y (en) * | 2004-12-06 | 2006-01-11 | 徐州工程机械科技股份有限公司徐工研究院 | Multi-path central rotation joint for water/electricity/liquid |
| CN201024045Y (en) * | 2007-03-29 | 2008-02-20 | 徐州重型机械有限公司 | Throttle control isolated central rotary joint combination device |
| CN201495574U (en) * | 2009-07-10 | 2010-06-02 | 江阴市长龄液压机具厂 | Hydraulic center rotation connector with electric brush |
| CN201706107U (en) * | 2010-06-10 | 2011-01-12 | 江苏鼎晟液压有限公司 | Multifunctional centre revolving joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102278552A (en) | 2011-12-14 |
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| 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 | ||
| 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: 20150715 Termination date: 20170610 |