CN105114725A - Hydraulic central rotary connector and wind power generation set - Google Patents
Hydraulic central rotary connector and wind power generation set Download PDFInfo
- Publication number
- CN105114725A CN105114725A CN201510583841.4A CN201510583841A CN105114725A CN 105114725 A CN105114725 A CN 105114725A CN 201510583841 A CN201510583841 A CN 201510583841A CN 105114725 A CN105114725 A CN 105114725A
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- China
- Prior art keywords
- body core
- housing
- central rotary
- section
- hydraulic
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- 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.)
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/087—Joints with radial fluid passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a hydraulic central rotary connector. The hydraulic central rotary connector comprises a body core and a shell which is arranged on the body core in a sleeving mode and in running fit with the body core. At least two channel oil grooves are formed between the body core and the shell. The middle machining sections, located between every two adjacent channel oil grooves, of the shell and the body core are integrally arranged to be in clearance seal. The end matching sections, located between the end of the body core and the channel oil groove closest to the end of the body core, of the body core and the shell are each provided with at least one rotary sealing piece. The middle matching sections are integrally in clearance seal and provided with no rotary sealing piece, and the service life of the product is greatly prolonged as no vulnerable part is used; in addition, the body core and the shell can be supported through clearance seal, and the hydraulic central rotary connector has the advantages of being simple in structure, reliable in work, long in service life, convenient to disassemble and assemble and lower in cost. The invention further discloses a wind power generation set adopting the hydraulic central rotary connector.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, be specifically related to a kind of hydraulic central rotary joint and wind power generating set.
Background technique
The equipment such as engineering machinery, wind power generating set, is provided with revolving structure mostly, usually needs hydraulic central rotary joint to solve to have the connectivity problem of oil circuit between the revolving structure of relative rotation motion and fixed structure or circuit.Hydraulic central rotary joint generally includes housing and body core, housing and body core are separately fixed on relative pivotal two structures, at least two passage oil grooves are provided with between housing and body core, one of them is oil inlet passage oil groove, its one end is communicated with the hydraulic oil channel be located on body core, the other end is communicated with the filler opening arranged on housing, by this hydraulic oil channel and filler opening, the hydraulic oil from fuel tank is exported to hydraulic actuator; Another one passage oil groove is drainback passage oil groove, its one end is communicated with another hydraulic oil channel be located on body core, the other end is communicated with the return opening be located on housing, is back to fuel tank by the hydraulic oil of this hydraulic oil channel and return opening self-hydraulic executive component in future.
But, hydraulic central rotary joint overwhelming majority between each passage oil groove of prior art adopts the sealing means arranging rotating seal, rotating seal is easily damaged parts, under higher hydraulic pressure, rotating seal easily weares and teares, cause the working life of hydraulic central rotary joint short, work unreliable; What simultaneously housing and the traditional supporting way of body core adopted is guide ring, and add on upper shell or body core and need to process multiple-sealed groove, cause the complex structure of hydraulic central rotary joint, dismounting difficulty, cost is high.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind ofly realizes the sealing between each passage oil groove and the support function between body core and housing by clearance seal, the hydraulic central rotary joint that structure is simple, reliable operation, long service life, easy accessibility, cost are lower and wind power generating set.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of hydraulic central rotary joint, comprise body core and to be sheathed on body core and the housing be rotatably assorted with body core, at least two passage oil grooves are provided with between described body core, housing, the middle part between adjacency channel oil groove of described housing and body core coordinates section entirety to be set to clearance seal, the end of described body core and housing coordinates section to be provided with at least one rotating seal, and described end coordinates section to be positioned between the end of described body core and the passage oil groove near this end.
Further, described end coordinates section to comprise first end and coordinates section and the second end cooperation section, described first end coordinates section and/or described the second end to coordinate section to be provided with at least one rotating seal, and described rotating seal is located between described body core and described housing.
Further, described first end coordinates section and/or described the second end to coordinate section to be provided with support ring, and the endoporus of described support ring and the outer wall of described body core are fitted, and the outer wall of described support ring and the endoporus of described housing are fitted.
Further, described support ring is the one in guide ring, oilless bearing, rolling bearing.
Further, described first end coordinates section and/or described the second end to coordinate section to be provided with at least one oil unloading trough, described oil unloading trough and the emptying channel connection be located on described body core.
Further, one end of described body core and housing is provided with base, and the other end of described body core and housing is provided with end cap.
Further, be provided with wear ring between described housing and described base, the both ends of the surface of described wear ring are fitted with described base and described housing respectively.
Further, described passage oil groove is communicated with the hydraulic oil channel be located on described body core, is provided with O-ring seals between described hydraulic oil channel and described base.
Further, described rotating seal is Glais ring, and the endoporus of described Glais ring and the outer wall of described body core are fitted, and the outer wall of described Glais ring and the endoporus of described housing are fitted.
Further, described rotating seal is rotary shaft sealing, and the endoporus of described rotary shaft sealing and the outer wall of described body core are fitted, and the outer wall of described rotary shaft sealing and the endoporus of described housing are fitted, one end face of described rotary shaft sealing is fitted with block, and block is fixedly connected with on the housing.
The present invention also provides a kind of wind power generating set, comprises aforesaid hydraulic central rotary joint.
Hydraulic central rotary joint of the present invention has following advantage: the middle part between adjacency channel oil groove of housing and body core coordinates section entirety to adopt clearance seal, to realize the sealing between each passage oil groove, any rotating seal is not set, owing to not using any easily damaged parts, is greatly improved in the working life of product; In addition, clearance seal also can be played a supporting role to body core and housing, has the advantage that structure is simple, reliable operation, long service life, easy accessibility, cost are lower.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the sectional structure schematic diagram of the embodiment of the present invention one.
Fig. 2 is the broken section structural representation of the embodiment of the present invention one.
Fig. 3 is the sectional structure schematic diagram of the embodiment of the present invention two.
Fig. 4 is the sectional structure schematic diagram of the embodiment of the present invention three.
Fig. 5 is the partial enlargement sectional structure schematic diagram of Fig. 4 of the present invention.
Fig. 6 is another sectional structure schematic diagram of the embodiment of the present invention three.
Marginal data: 1, body core; 10, passage oil groove; 101, oil unloading trough; 102A, hydraulic oil channel; 102B, hydraulic oil channel; 103, emptying passage; 11, middle part coordinates section; 12, base; 123, O-ring seals; 13, end cap; 131, cylinder; 132, Gai Yuan; 2, housing; 21, block; 211, stop block body; 212, block boss; 31, Glais ring; 32, rotary shaft sealing; 4, support ring; 6, wear ring; 61, wear ring body; 62, wear ring boss.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Embodiment one:
As depicted in figs. 1 and 2, the hydraulic central rotary joint of the present embodiment, comprise body core 1 and to be sheathed on body core 1 and the housing 2 be rotatably assorted with body core 1, be provided with at least two passage oil grooves 10 between body core 1, housing 2, the middle part between adjacency channel oil groove 10 of housing 2 and body core 1 coordinates section 11 entirety to be set to clearance seal.
The middle part between adjacency channel oil groove 10 of housing 2 and body core 1 coordinates section 11 entirety to adopt clearance seal, to realize the sealing between each passage oil groove, any rotating seal is not set, owing to not using any easily damaged parts, is greatly improved in the working life of product; In addition, clearance seal also can be played a supporting role to body core 1 and housing 2, has the advantage that structure is simple, reliable operation, long service life, easy accessibility, cost are lower.
Known see Fig. 1, in the present embodiment, the quantity of passage oil groove 10 is specially three, one of them passage oil groove 10 is oil inlet passage oil groove, its one end is communicated with the hydraulic oil channel 102A be located on body core 1, the other end is communicated with the filler opening be located on housing 2, by this hydraulic oil channel 102A and filler opening, the hydraulic oil from fuel tank is exported to hydraulic actuator; Two other passage oil groove 10 is drainback passage oil groove, its one end is communicated with another hydraulic oil channel 102B be located on body core 1, the other end is communicated with the return opening be located on housing 2, is back to fuel tank by the hydraulic oil of this hydraulic oil channel 102B and return opening self-hydraulic executive component in future; Certainly, middle part coordinates the quantity of section 11 to be specially two.The quantity of above-mentioned passage oil groove 10, hydraulic oil channel is exemplary illustration, to those skilled in the art, can also arrange more passage oil groove 10 and hydraulic oil channel as required, not repeat them here.
For realizing the sealing at hydraulic central rotary joint two ends, the end of body core 1 and housing 2 coordinates section to be provided with at least one rotating seal, and end coordinates section to be positioned between the end of body core 1 and the passage oil groove 10 near this end.In the present embodiment, end coordinates section to comprise first end and coordinates section and the second end cooperation section, and first end coordinates section and the second end to coordinate section to be equipped with a rotating seal, and rotating seal is located between body core 1 and housing 2.Certainly, be further enhanced leaktightness effect, rotating seal also can be set to multiple, and such as first end coordinates section and the second end to coordinate section all to arrange two or more rotating seals, and the present invention is not limited to this; In the present embodiment, rotating seal specifically selects Glais ring 31, the endoporus of Glais ring 31 and the outer wall of body core 1 are fitted, the outer wall of Glais ring 31 and the endoporus of housing 2 are fitted, achieve the sealing of body core 1 and housing 2 two end part cooperation section simple and reliablely, prevent body core 1 and housing 2 two end part from coordinating section generation external leakage.
For realizing the supporting effect between body core 1 and housing 2 better, first end coordinates section and/or the second end to coordinate section to be provided with support ring 4, in the present embodiment, prioritizing selection is equipped with support ring 4 in first end cooperation section and the second end cooperation section, the endoporus of support ring 4 and the outer wall of body core 1 are fitted, and the outer wall of support ring 4 and the endoporus of housing 2 are fitted.Support ring 4 plays guide support effect between body core 1 and housing 2, can assist further and support performance between reinforcement core 1 and housing 2.It should be noted that, support ring 4 is not the required parts realizing supporting between body core 1 and housing 2, therefore also can not use support ring 4, realizes supporting only by clearance seal.In the present embodiment, support ring 4 is guide ring, and in addition, support ring 4 also adopts other rotational support structure, such as oilless bearing, rolling bearings etc. as required.
In the present embodiment, one end of body core 1 and housing 2 has been provided with base 12, the other end of body core 1 and housing 2 is provided with end cap 13, and base 12 is fixedly connected on body core 1, and fits with its end face, wear ring 6 is provided with between base 12 and housing 2, wear ring 6 is sheathed on body core 1, and the outer wall of wear ring 6 endoporus and body core 1 is fitted, and the both ends of the surface of wear ring 6 are fitted with base 12 and housing 2 respectively, wear ring 6 can prevent base 12 from directly contacting with housing 2, promotes the working life of base 12 and housing 2.In addition, base 12 and be provided with O-ring seals 123 between hydraulic oil channel 102A, 102B.
End cap 13 is located at housing 2 inside and is fixedly connected on body core 1, and end cap 13 comprises lid edge 132 and cylinder 131, and cylinder 131 is inserted in body core 1, and lid edge 132 is positioned at outside body core 1 and housing 2 end face.End cap 13 can play the effect of axial limiting to housing 2, guarantee body core 1, housing 2 reliably relatively rotates, and end cap 13 is changed convenient and swift, cylinder 131 can realize the reliable connection between end cap 13 and body core 1, prevents end cap 13 from occurring to loosen.
Embodiment two:
The present embodiment is substantially identical with embodiment one, and its main difference point is:
I) two end part of body core 1 and housing 2 coordinate section to be equipped with two rotating seals, as shown in Figure 3.Certainly, under this inspires, those skilled in the art can also coordinate section to arrange more rotating seal at body core 1 and housing 2 two end part as required, and its principle is identical with the present embodiment, therefore does not repeat them here.
II) body core 1 and housing 2 two end part coordinate section not arrange support ring 4, only adopt support function that middle part coordinates the clearance seal of section 11 to provide to realize the support between body core 1 and housing 2, specifically as shown in Figure 3.
Embodiment three:
The present embodiment is substantially identical with embodiment one, and its main difference point is:
I) structure of rotating seal 3 is different.As shown in Figure 4 and Figure 5, first end coordinates section and the second end to coordinate section to be equipped with rotating seal, rotating seal specifically adopts rotary shaft sealing 32, and the endoporus of rotary shaft sealing 32 and the outer wall of body core 1 are fitted, and the outer wall of rotary shaft sealing 32 and the endoporus of housing 2 are fitted.
Wherein, be located at first end and coordinate first end face of rotary shaft sealing 32 of section to be fitted with block 21, by block 21 and housing 2 spacing to carrying out to its two end axles.Block 21 comprises stop block body 211 and block boss 212, and stop block body 211 is fixedly connected on housing 2, and between the lid edge 132 being set in housing 2 and end cap 13, block boss 212 is set between housing 2 and body core 1.
Being located at the second end coordinates the second end face of the rotary shaft sealing 32 of section to be fitted with wear ring 6, in the present embodiment, wear ring 6 comprises wear ring body 61 and wear ring boss 62, wear ring body 61 is located between housing 2 and base 12, first end face of wear ring body 61 and the end face of housing 2 are fitted, second end face of wear ring body 61 and the end face laminating of base 12, wear ring boss 62 is set between housing 2 and body core 1.
By arranging block 21, only need take off block 21 from housing 2, rotary shaft sealing 32 can be taken off from housing 2, make the installation and removal of rotary shaft sealing 32 fast very convenient.
II) two end part of body core 1 and housing 2 coordinate section not arrange support ring 4, only adopt support function that middle part coordinates the clearance seal of section 11 to provide to realize the support between body core 1 and housing 2, specifically as shown in Figure 4 and Figure 5.Certainly, for strengthening supporting effect, also can arrange support ring in the two end part section of cooperation, support ring can adopt oilless bearing, rolling bearing etc. as required.
III) two end part of body core 1, housing 2 coordinate section to be provided with oil unloading trough 101.As shown in Figure 4, Figure 5 and Figure 6, the two end part of body core 1, housing 2 coordinate section to be provided with oil unloading trough 101, oil unloading trough 101 one end is communicated with fuel tank by the emptying passage be located on body core 1, the other end is communicated with executive component by the unloading port be located on housing 2, by the hydraulic oil between hydraulic oil channel 102A, 102B and rotating seal is carried out pressure release, prevent rotating seal from bearing high pressure.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a hydraulic central rotary joint, comprise body core (1) and be sheathed on the upper and housing (2) be rotatably assorted with body core (1) of body core (1), described body core (1), at least two passage oil grooves (10) are provided with between housing (2), it is characterized in that: the middle part be positioned between adjacency channel oil groove (10) of described housing (2) and body core (1) coordinates section (11) entirety to be set to clearance seal, the end of described body core (1) and housing (2) coordinates section to be provided with at least one rotating seal, described end coordinates section to be positioned between the end of described body core (1) and the passage oil groove (10) near this end.
2. hydraulic central rotary joint according to claim 1, it is characterized in that: described end coordinates section to comprise first end and coordinates section and the second end cooperation section, described first end coordinates section and/or described the second end to coordinate section to be provided with at least one rotating seal, and described rotating seal is located between described body core (1) and described housing (2).
3. hydraulic central rotary joint according to claim 2, it is characterized in that: described first end coordinates section and/or described the second end to coordinate section to be provided with support ring (4), the endoporus of described support ring (4) and the outer wall of described body core (1) are fitted, and the outer wall of described support ring (4) and the endoporus of described housing (2) are fitted.
4. hydraulic central rotary joint according to claim 2, it is characterized in that: described first end coordinates section and/or described the second end to coordinate section to be provided with at least one oil unloading trough (101), and described oil unloading trough (101) is communicated with the emptying passage (103) be located on described body core (1).
5. hydraulic central rotary joint according to claim 1, it is characterized in that: one end of described body core (1) and housing (2) is provided with base (12), the other end of described body core (1) and housing (2) is provided with end cap (13).
6. hydraulic central rotary joint according to claim 5, it is characterized in that: be provided with wear ring (6) between described housing (2) and described base (12), the both ends of the surface of described wear ring (6) are fitted with described base (12) and described housing (2) respectively.
7. hydraulic central rotary joint according to claim 5, it is characterized in that: described passage oil groove (10) is communicated with the hydraulic oil channel (102A) be located on described body core (1), (102B), described hydraulic oil channel (102A), between (102B) and described base (12), be provided with O-ring seals (123).
8. according to the hydraulic central rotary joint in claim 1 ~ 7 described in any one, it is characterized in that: described rotating seal is Glais ring (31), the endoporus of described Glais ring (31) and the outer wall of described body core (1) are fitted, and the outer wall of described Glais ring (31) and the endoporus of described housing (2) are fitted.
9. according to the hydraulic central rotary joint in claim 1 ~ 7 described in any one, it is characterized in that: described rotating seal is rotary shaft sealing (32), the endoporus of described rotary shaft sealing (32) and the outer wall of described body core (1) are fitted, the outer wall of described rotary shaft sealing (32) and the endoporus of described housing (2) are fitted, one end face of described rotary shaft sealing (32) is fitted with block (21), and described block (21) is fixedly connected on described housing (2).
10. a wind power generating set, is characterized in that: comprise the hydraulic central rotary joint in claim 1 ~ 9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583841.4A CN105114725A (en) | 2015-09-14 | 2015-09-14 | Hydraulic central rotary connector and wind power generation set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583841.4A CN105114725A (en) | 2015-09-14 | 2015-09-14 | Hydraulic central rotary connector and wind power generation set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114725A true CN105114725A (en) | 2015-12-02 |
Family
ID=54662777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510583841.4A Pending CN105114725A (en) | 2015-09-14 | 2015-09-14 | Hydraulic central rotary connector and wind power generation set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048303A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Rotary joint and wind driven generator with same |
| CN113048011A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Wind power generator |
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| CN101169205A (en) * | 2007-11-19 | 2008-04-30 | 韶关液压件厂有限公司 | High pressure high speed rotation joint |
| DE102008012676A1 (en) * | 2008-03-05 | 2009-09-17 | Hunger Maschinen Gmbh | Rotary union |
| CN101761716A (en) * | 2010-03-10 | 2010-06-30 | 无锡市长江液压缸厂 | Seal swivel joint |
| CN202203565U (en) * | 2011-08-17 | 2012-04-25 | 山东德立信液压有限公司 | Central rotary joint |
| CN203453676U (en) * | 2013-07-23 | 2014-02-26 | 山东德立信液压有限公司 | Central swivel joint for 22-tonner crawler excavator |
| CN103807588A (en) * | 2012-11-05 | 2014-05-21 | 协易机械工业股份有限公司 | Revolved body oil circuit guiding device |
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2015
- 2015-09-14 CN CN201510583841.4A patent/CN105114725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169205A (en) * | 2007-11-19 | 2008-04-30 | 韶关液压件厂有限公司 | High pressure high speed rotation joint |
| DE102008012676A1 (en) * | 2008-03-05 | 2009-09-17 | Hunger Maschinen Gmbh | Rotary union |
| CN101761716A (en) * | 2010-03-10 | 2010-06-30 | 无锡市长江液压缸厂 | Seal swivel joint |
| CN202203565U (en) * | 2011-08-17 | 2012-04-25 | 山东德立信液压有限公司 | Central rotary joint |
| CN103807588A (en) * | 2012-11-05 | 2014-05-21 | 协易机械工业股份有限公司 | Revolved body oil circuit guiding device |
| CN203453676U (en) * | 2013-07-23 | 2014-02-26 | 山东德立信液压有限公司 | Central swivel joint for 22-tonner crawler excavator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048303A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Rotary joint and wind driven generator with same |
| CN113048011A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Wind power generator |
| CN113048011B (en) * | 2019-12-27 | 2024-02-06 | 国家电投集团科学技术研究院有限公司 | Wind power generator |
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Application publication date: 20151202 |