CN101817482A - Composite core hydraulic central gyrorotor - Google Patents
Composite core hydraulic central gyrorotor Download PDFInfo
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- CN101817482A CN101817482A CN200910264945A CN200910264945A CN101817482A CN 101817482 A CN101817482 A CN 101817482A CN 200910264945 A CN200910264945 A CN 200910264945A CN 200910264945 A CN200910264945 A CN 200910264945A CN 101817482 A CN101817482 A CN 101817482A
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- revolving shell
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Abstract
The invention discloses a composite core hydraulic central gyrorotor, which comprises a rotor core, a rotating shell, an end cover, a shaft sleeve, a sealing ring, a gasket and a guide ring, and is characterized in that: the rotor core is provided with a plurality of open oil ducts which are communicated with pipeline oil ports formed radially on the front part of the rotor core one by one; the shaft sleeve is also provided with a hole respectively communicated with the oil ducts on the rotor core; the center of the rotor core is provided with a channel; the end cover is provided with a central hole; and the channel is communicated with the central hole. The composite core hydraulic central gyrorotor has the advantages that: the composite core hydraulic central gyrorotor has compact structure, small volume, convenient operation and maintenance, large rotation angle, stable running and small moment of rotation; the rotating part and the fixed part can rotate 360 degrees relatively and the pipelines are not interfered with each other, the up and down oil ducts are smooth, the actions of the oil ducts are not connected in series, and the hydraulic central gyrorotor is used for large machinery; and the rotor core has a complex structure, the process difficulty is greatly reduced, and the cleanness inside the oil ducts can be maintained.
Description
Technical field
The present invention relates to the central gyro-rotor of a kind of hydraulic pressure, the central gyro-rotor of especially a kind of composite core hydraulic.
Background technology
Hydraulic pressure central authorities gyro-rotor is the device that on the construction machinery and equipments such as hoisting crane, excavating machine the hydraulic oil of getting off and electric system is transported to the actuating unit of getting on the bus, the central gyro-rotor of common hoisting crane is made of revolving shell, axis of revolution and sealing member, revolving shell is fixed on the turn table, follow the turn table revolution, axis of revolution is fixed on the chassis motionless, is provided with the oil circuit that is connected by annular oil groove between revolving shell and the axis of revolution.Conventional now hydraulic excavator, hoisting crane etc., two-part degreeof turn is limited up and down for it, and degreeof turn is little, the Operation and Maintenance inconvenience, pipeline interferes easily, and service life is short and axis of revolution core ultralong deep hole is many, difficulty of processing is big, all kinds of foreign bodies removal difficulties in the oil duct.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of composite core hydraulic central gyro-rotor.This composite core hydraulic central authorities rotary structure compactness, convenient operating maintenance, degreeof turn is big, rotating part and fixed part can rotate 360 ° and pipeline does not interfere relatively, oil circuit is unimpeded up and down, the not series connected large-sized machinery hydraulic of each oil circuit action central authorities gyro-rotor, and its axis of revolution core adopts duplex, greatly reduce technology difficulty, can guarantee oil duct in-to-in cleanliness level again.
Technical scheme of the present invention is achieved by the following technical solution: the central gyro-rotor of a kind of composite core hydraulic comprises axis of revolution core, revolving shell, end cap, axle sleeve, seal ring, packing ring, guide ring.It is characterized in that: the axis of revolution core embeds in the axle sleeve and is combined as axis of revolution, and axis of revolution rear axle figure is inserted in the revolving shell, and anterior pipeline linkage section places the outer front end of revolving shell, and end cap places the inner rear end of revolving shell.The axis of revolution mandrel is to offering many unlimited oil ducts, corresponding one by one the communicating of pipeline hydraulic fluid port of radially offering with axis of revolution core front portion, communicate with oil duct on the axis of revolution core respectively also offering the aperture on the axle sleeve, offer passage at axis of revolution core center, offer centre hole in end caps, passage communicates with centre hole.End cap is connected the axis of revolution aft end face with screw.Gasket arrangements is between revolving shell and center steering axle.Respectively offer the guiding annular groove in the inner front and rear portions of revolving shell, guiding annular groove inside is embedded with guide ring.Offer multiple-sealed annular groove in revolving shell inside, be embedded with seal ring at closure gasket groove.At the together dustproof groove of revolving shell front inner surface setting, the dustproof built-in combination seal of groove, the two way seal when being used for axis of revolution and rotatablely moving.Described combination seal is that square ring and " O " shape rubber ring of a filled polytetrafluoroethylene material combines, can also be with the assembly set of urethane seal circle.
Its beneficial effect is: sealing member of the present invention adopts the combination seal high pressure resistant, that resistance to abrasion is good, reliable in action, and sealing member amount of compression appropriate design guarantees that hydraulic pressure central authorities gyro-rotor high pressure rotary sealing is reliable, and running is steady, and moment of rotation is little.The volume of the central gyro-rotor of whole hydraulic pressure is little, and compact conformation is reasonable.
This product is mainly used in the 20-40T fully hydraulic truck crane, makes the part of getting on or off the bus can turn round 360 ° relatively, and whole hydraulic efficiency pressure system is communicated with up and down by hydraulic pressure central authorities gyro-rotor.
Description of drawings
Fig. 1 is hydraulic pressure central authorities gyro-rotor outside drawings.
Fig. 2 is hydraulic pressure central authorities gyro-rotor inner structure scheme drawings.
Fig. 3 is hydraulic pressure central authorities axis of revolution structural representations.
Fig. 4 is hydraulic pressure central authorities axis of revolution front cross-sectional view.
Among the figure, the 1,2,3,4,5, the 6th, hydraulic fluid port, the 7th, axis of revolution core, the 8th, packing ring, the 9th, dustproof groove, the 10th, guiding annular groove, the 11st, axle sleeve, the 12nd, guide ring, the 13rd, seal ring, the 14th, revolving shell, the 15th, seal groove, the 16th, end cap, the 17th, screw, the 18th, centre hole, the 19,20,21,22,23,24,25, the 26th, aperture, the 27,28,29,30,31,32,33, the 34th, oil duct, the 35th, passage, the 36th, axis of revolution, the 37,38,39,40,41,42, the 43rd, hydraulic fluid port.
The specific embodiment
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention mainly comprises axis of revolution core 7, revolving shell 14, end cap 16, axle sleeve 11, seal ring 13, packing ring 8 and guide ring 12, axis of revolution core 7 embeds in the axle sleeve 11 and is combined as axis of revolution 36, axis of revolution 36 rear portions place in the revolving shell 14, anterior oil port places revolving shell 14 outsides, and end cap 16 is built in revolving shell 14 rear ends and is connected with axis of revolution 36 rear ends.On revolving shell 14 inwalls, radially offer oil duct 27,28,29,30,31,32,33,34 and multiple-sealed groove 15, respectively be provided with guiding annular groove 10 in revolving shell 14 front and back one, be built-in with polytetrafluorethyleguide guide ring 7; The together dustproof groove 9 of revolving shell 14 front inner surface settings is built-in with combination seal, the two way seal when being used for axis of revolution 36 and rotatablely moving.Be built-in with seal ring 13 at seal groove 15.Described combination seal is that square ring and " O " shape rubber ring of a filled polytetrafluoroethylene material combines, can also be with the assembly set of urethane seal circle.On axis of revolution core 7, axially offer oil duct 27,28,29,30,31,32,33,34, circular hole passage 35 is offered at axis of revolution core 7 centers, oil duct 27,28,29,30,31,32,33,34 axially is distributed in the periphery of passage 35, and with axle sleeve 11 on aperture 19,20,21,22,23,24,25,26 corresponding one by one communicating; Axis of revolution core 7 front ends are radially offered oil duct 27,28,29,30,31,32,33 corresponding one by one the communicating on hydraulic fluid port 37,38,39,40,41,42,43 and the axis of revolution core 7; Radially offer on the revolving shell 14 hydraulic fluid port 1,2,3,4,5,6 respectively with axis of revolution core 7 on oil duct 28,29,30,31,32,33 corresponding communicating.Offer passage 34 at axis of revolution core 7 centers, 16 places offer centre hole 18 at end cap, and centre hole 18 communicates with passage 35, and end cap 16 usefulness screws 17 are connected the axis of revolution aft end face.Packing ring 8 is configured between revolving shell 14 and the center steering axle 36.
Wherein, Specifeca tion speeification: specified working pressure P is 25MPa, and nominal operation flow Q is 320L/min, and rated speed of rotation n is 15r/min, and it is 7 that the work oil duct is counted m, and range of viscosities is 2.8-320mm
2/ s, range of temperatures are-20 ℃～80 ℃.
During work, revolving shell and Hydraulic for lifting load, the revolution upper mounting plate revolution of hydraulic excavator is supported and is connected, and axis of revolution is fixed with the revolution lower platform.Hydraulic oil pipe is installed on respectively on each hydraulic fluid port of revolving shell and axis of revolution.The upper mounting plate of hydraulic machinery drives the axis of revolution rotation.Whole hydraulic efficiency pressure system connects by each pipeline on the revolving shell, makes upper and lower two parts of hydraulic lift gyroscopic movement 360 degree relatively, and pipeline does not interfere, and upper and lower oil circuit is unimpeded, does not interfere between each oil circuit.
Claims (2)
1. a composite core hydraulic central authorities gyro-rotor comprises axis of revolution core, revolving shell, end cap, axle sleeve, seal ring, packing ring, guide ring; It is characterized in that: the axis of revolution core embeds in the axle sleeve and is combined as axis of revolution, and axis of revolution rear axle figure is inserted in the revolving shell, and anterior pipeline linkage section places the outer front end of revolving shell, and end cap places the inner rear end of revolving shell; The axis of revolution mandrel is to offering corresponding one by one the communicating of pipeline hydraulic fluid port that many unlimited oil ducts and axis of revolution core front portion are radially offered, communicate with oil duct on the axis of revolution core respectively also offering the aperture on the axle sleeve, offer passage at axis of revolution core center, offer centre hole in end caps, passage communicates with centre hole; End cap is connected the axis of revolution aft end face with screw; Gasket arrangements is between revolving shell and center steering axle; Respectively offer the guiding annular groove in the inner front and rear portions of revolving shell, guiding annular groove inside is embedded with guide ring; Offer multiple-sealed annular groove in revolving shell inside, be embedded with seal ring at closure gasket groove; At the together dustproof groove of revolving shell front inner surface setting, the dustproof built-in combination seal of groove, the two way seal when being used for axis of revolution and rotatablely moving.
2. the central gyro-rotor of a kind of composite core hydraulic according to claim 1, it is characterized in that: described combination seal is that square ring and " O " shape rubber ring of a filled polytetrafluoroethylene material combines, can also be with the assembly set of urethane seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264945A CN101817482A (en) | 2009-12-16 | 2009-12-16 | Composite core hydraulic central gyrorotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264945A CN101817482A (en) | 2009-12-16 | 2009-12-16 | Composite core hydraulic central gyrorotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101817482A true CN101817482A (en) | 2010-09-01 |
Family
ID=42652790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910264945A Pending CN101817482A (en) | 2009-12-16 | 2009-12-16 | Composite core hydraulic central gyrorotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101817482A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030275A (en) * | 2011-01-28 | 2011-04-27 | 岳阳科德科技有限责任公司 | Composite multi-channel hydraulic center revolving body |
| CN103072907A (en) * | 2013-01-21 | 2013-05-01 | 韶关市瑞和液压机械制造有限公司 | Rotary table of truck mounted crane rotary table |
| CN112082027A (en) * | 2020-09-30 | 2020-12-15 | 三一汽车制造有限公司 | Hydraulic swivel joint, electro-hydraulic swivel connecting device and work vehicle |
-
2009
- 2009-12-16 CN CN200910264945A patent/CN101817482A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030275A (en) * | 2011-01-28 | 2011-04-27 | 岳阳科德科技有限责任公司 | Composite multi-channel hydraulic center revolving body |
| CN103072907A (en) * | 2013-01-21 | 2013-05-01 | 韶关市瑞和液压机械制造有限公司 | Rotary table of truck mounted crane rotary table |
| CN112082027A (en) * | 2020-09-30 | 2020-12-15 | 三一汽车制造有限公司 | Hydraulic swivel joint, electro-hydraulic swivel connecting device and work vehicle |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100901 |