CN101216135B - Multi-oil path large-sized machinery hydraulic central swivel joint - Google Patents
Multi-oil path large-sized machinery hydraulic central swivel joint Download PDFInfo
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- CN101216135B CN101216135B CN2008100191573A CN200810019157A CN101216135B CN 101216135 B CN101216135 B CN 101216135B CN 2008100191573 A CN2008100191573 A CN 2008100191573A CN 200810019157 A CN200810019157 A CN 200810019157A CN 101216135 B CN101216135 B CN 101216135B
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- turning axle
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- 239000007787 solid Substances 0.000 claims description 57
- 230000008878 coupling Effects 0.000 claims description 28
- 238000010168 coupling process Methods 0.000 claims description 28
- 238000005859 coupling reaction Methods 0.000 claims description 28
- 210000002268 wool Anatomy 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 9
- 230000013011 mating Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to a hydraulic central rotary joint used in multi-oil passage large machinery, more particularly used in the whole hydraulic system of machines such as excavator, crane, leveler and tower crane. The hydraulic central rotary joint comprises a large rotary joint, a small rotary joint, a connector (5), a top cover (6) and an end cover (7). The large rotary joint comprises a large rotary body (1) and a large rotary shaft (2). The small rotary joint comprises a small rotary body (3) and a small rotary shaft (4). Oil discharge holes are arranged in the axial center of the large rotary shaft and the small rotary shaft. A plurality of main oil holes and low-pressure oil holes are uniformly distributed in the periphery of the oil discharge holes. A plurality of low-pressure oil ports and main oil ports are axially arranged on the large rotary body, the small rotary body and the connector, in one-to-one correspondence and communication with the main oil holes and low-pressure oil holes on the large rotary shaft and the small rotary shaft. An oil discharge hole is arranged in the center of each of the end cover (7) and the connector (5), in correspondence and communication with the oil discharge hole in the center of the large rotary shaft (2) or the small rotary shaft (4). With the structure of large and small rotary joints, the invention realizes the multi-oil passage connection and is particularly suitable for the use in large machinery requiring multiple oil passages.
Description
Technical field
The present invention relates to the central swivel coupling of a kind of hydraulic pressure.Be mainly used in the whole hydraulic system of machineries such as excavator, hoist, grader, tower crane.Be to connect the hydraulic pipe line of fixing in the whole hydraulic system with rotating part.
Background technique
Conventional hydraulic shovel, hoist etc., two-part revolution is to adopt general hydraulic pressure central authorities swivel coupling traction about it.General hydraulic pressure central authorities swivel coupling is made up of solid of rotation, turning axle, end cap and Sealing.During use, the revolution lower bolster of solid of rotation and hydraulic shovel, hoist machinery is fixed, and the turning axle upper mounting plate supports with the revolution on the revolution upper mounting plate and is connected.Hydralic hose is installed on respectively on each hydraulic fluid port of solid of rotation and turning axle.The upper mounting plate of hydraulic machinery drives the turning axle rotation.Whole hydraulic system connects by the upper and lower pipeline of solid of rotation, makes upper and lower two parts of hydraulic shovel have 360 ° of relative rotation motions, and pipeline does not interfere, and upper and lower oil circuit is unimpeded, and each oil circuit action is not connected.This hydraulic pressure central authorities swivel coupling oil circuit is less, is generally 5.5 all are arranged on the turning axle.Therefore its using scope is restricted, and can only be applicable to the machinery of less oil circuit, and can not be applicable to the big machinery on heavy wool road.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of hydraulic pressure central authorities swivel coupling that is applicable to the big machinery on heavy wool road is provided.
The object of the present invention is achieved like this: the central swivel coupling of a kind of heavy wool path large-sized machinery hydraulic, it is characterized in that described joint comprises big swivel coupling, little swivel coupling, connector, top cover and end cap,
Described big swivel coupling comprises big solid of rotation and big turning axle, and the big arrogant solid of rotation front end of turning axle axially inserts in the big solid of rotation, and the turning axle front end stretches out outside the big solid of rotation greatly,
Described little swivel coupling comprises little solid of rotation and little turning axle, and described little turning axle solid of rotation front end from childhood axially inserts in the little solid of rotation, and little turning axle front end stretches out outside the little solid of rotation,
Described little turning axle front end is fixedlyed connected with big turning axle rear end, and connector is fixedly connected on big turning axle front end, and top cover is fixedly connected on big solid of rotation rear end, and end cap is fixedly connected on little solid of rotation and little turning axle rear end,
Axially offer many oil circuit holes on described big turning axle and the little turning axle, center that is arranged in big turning axle and little turning axle wherein, be the draining hole, all the other are distributed in the periphery in draining hole, be low pressure oil circuit hole, also axially offer many working connection holes on the described big turning axle, this working connection hole is distributed in the periphery in low pressure oil circuit hole
Corresponding to the low pressure oil circuit hole on big turning axle and the little turning axle, radially also offer on little solid of rotation and the connector a plurality of low pressure hydraulic fluid ports with it one by one correspondence be connected; Corresponding to the working connection hole on the big turning axle, radially also offer on the big solid of rotation many main hydraulic fluid ports with it one by one correspondence be connected;
Corresponding to the draining hole at big turning axle and little turning axle center, end cap and connector center also offer one and are attached thereto logical drain tap.
This product is mainly used in upper and lower two major parts of the all-hydraulic wheel excavator of 20T-40T level, has 360 ° of relative rotation motions, is that the pipeline of hydraulic system connects, and whole hydraulic system connects by the upper and lower pipeline of solid of rotation.
The present invention adopts large and small swivel coupling structure, can realize that the heavy wool road connects.Therefore need to be specially adapted to the big machinery on heavy wool road.
Description of drawings
Fig. 1 is the External view of the central swivel coupling of heavy wool path large-sized machinery hydraulic of the present invention.
Fig. 2 is that the X of Fig. 1 is to view.
Fig. 3 is the internal structure schematic representation of the central swivel coupling of heavy wool path large-sized machinery hydraulic of the present invention.
Fig. 4 removes left side view behind the connector for Fig. 3.
Fig. 5 is the Z-Z cut-away view of Fig. 3.
Fig. 6 is the worm's eye view of Fig. 3.
Direction key plan when Fig. 7 heavy wool path large-sized machinery hydraulic of the present invention central authorities swivel coupling assembles.
Fig. 8 is the schematic diagram of the central swivel coupling of heavy wool path large-sized machinery hydraulic of the present invention.
Fig. 9 is the oil circuit figure of the central swivel coupling of heavy wool path large-sized machinery hydraulic of the present invention.
Among the figure: big solid of rotation 1, big turning axle 2, little solid of rotation 3, little turning axle 4, connector 5, top cover 6, end cap 7, spacer 8, carriage 9, slipper seal 10, packing ring 11, O shape circle 12, O shape circle 13, O shape circle 14, O shape circle 15, O shape circle 16, O shape circle 17, O shape circle 18, back-up ring 19, wear ring 20, wear ring 21, wear ring 22, back-up ring 23, bolt with washer 24, bolt/flange 25, bolt with washer 26, bolt 27, spring nail 28, plug screw 29, plug screw 30, plug screw 31, O shape circle 32, O shape circle 33, O shape circle 34, back-up ring 35.
Embodiment
As Fig. 1～5, the present invention is the central swivel coupling of a kind of heavy wool path large-sized machinery hydraulic, mainly is made up of big swivel coupling, little swivel coupling, connector 5, top cover 6 and end cap 7.
Described big swivel coupling mainly is made up of big solid of rotation 1 and big turning axle 2.Big turning axle 2 arrogant solid of rotation 1 front ends axially insert in the big solid of rotation 1, and big turning axle 2 front ends stretch out outside the big solid of rotation 1.
Described little swivel coupling mainly is made up of little solid of rotation 3 and little turning axle 4.Little turning axle 4 solid of rotation 3 front ends from childhood axially inserts in the little solid of rotation 3, and little turning axle 4 front ends stretch out outside the little solid of rotation 3.Little turning axle 4 front ends are fixedlyed connected with big turning axle 2 rear ends.
Described connector 5 usefulness bolts 27 and spring nail 28 are fixedly connected on big turning axle 2 front ends.Top cover 6 usefulness bolt/flanges 25, O shape circle 34 and spring nail 28 are fixedly connected on big solid of rotation 1 rear end.End cap 7 usefulness bolts with washer 26 are fixedly connected on little solid of rotation 3 and little turning axle 4 rear ends.
Fixedly connected by carriage 9 usefulness bolts with washer 24 between described big solid of rotation 1 rear end and the little solid of rotation 3, as Fig. 6.
As Fig. 3, axially offer seven oil circuit holes on described big turning axle 2 and the little turning axle 4, center that is arranged in big turning axle 2 and little turning axle 4 wherein, as the K hole among Fig. 3, be the draining hole, all the other six peripheries that are distributed in draining hole K, be referred to as low pressure oil circuit hole, as the R hole among Fig. 3 and Fig. 8, the P hole, the M hole, the Q hole, the N hole, the L hole, also axially offer nine oil circuit holes on the described big turning axle 2, be referred to as the working connection hole, as the E hole among Fig. 3 and Fig. 7, the A hole, the J hole, the C hole, the H hole, the F hole, the G hole, the D hole, the B hole, these nine working connection holes are distributed in the periphery in six low pressure oil circuit holes on the big turning axle 2.
Six low pressure oil circuit holes corresponding on big turning axle 2 and the little turning axle 4 radially also offer six low pressure hydraulic fluid ports, as the R mouth among Fig. 1, P mouth, Q mouth, L mouth, M mouth, N mouth on little solid of rotation 3 and the connector 5.Corresponding one by one being connected of six low pressure hydraulic fluid ports on six low pressure oil circuit holes on big turning axle 2 and the little turning axle 4 and little solid of rotation 3 and the connector 5;
Corresponding to nine working connection holes on the big turning axle 2, radially also offer nine main hydraulic fluid ports on the big solid of rotation 1, as the E mouth among Fig. 3, A mouth, J mouth, C mouth, H mouth, F mouth, G mouth, D mouth, B mouth, corresponding one by one being connected of nine main hydraulic fluid ports on nine working connection holes on the big turning axle 2 and the solid of rotation 1 greatly; Corresponding to the draining hole at big turning axle 2 and little turning axle 4 centers, end cap 7 and connector 8 centers also offer a drain tap, and as the K mouth among Fig. 3, the draining hole at big turning axle 2 and little turning axle 4 centers is connected with the drain tap at end cap 7 centers.
Described big turning axle 2 is set O shape circle 13 with big solid of rotation 1 front end mating face.Set O shape circle 12, wear ring 20, packing ring 11, slipper seal 10 and wear ring 21 successively from A-P between big turning axle 2 and big solid of rotation 1 mating face.Connector 5 is set O shape circle 18 with big turning axle 2 mating faces.Little turning axle 4 is set O shape circle 16 with little solid of rotation 3 front end mating faces.Set wear ring 22, O shape circle 15, back-up ring 19, spacer 8, back-up ring 23 and O shape circle 17 successively from A-P between little solid of rotation 3 and little solid of rotation 3 mating faces.Top cover 6 is set O shape circle 32, O shape circle 14 and back-up ring 35 with big mating face, solid of rotation 1 rear end.Top cover 6 is set O shape circle 33 with little turning axle 4 mating faces.
Working principle such as Fig. 9:
R, P, Q, L, M, N mouth oil circuit are fuel-displaced through little solid of rotation 3, little turning axle 4, big turning axle 2 and connector 5.
K mouth oil circuit is fuel-displaced through end cap 7, little turning axle 4, big turning axle 2 and connector 8.
A, B, C, D, E, F, G, H, J mouth oil circuit are through solid of rotation and big turning axle are fuel-displaced greatly.
The present invention is not limited only to above-mentioned 16 oil circuits, can also be made into 14,15,17,18 oil circuits etc.Their production program is basic identical.
Claims (2)
1. a heavy wool path large-sized machinery hydraulic central authorities swivel coupling is characterized in that described joint comprises big swivel coupling, little swivel coupling, connector (5), top cover (6) and end cap (7),
Described big swivel coupling comprises big solid of rotation (1) and big turning axle (2), and the big arrogant solid of rotation of turning axle (2) (1) front end axially inserts in the big solid of rotation (1), and turning axle (2) front end stretches out outside the big solid of rotation (1) greatly,
Described little swivel coupling comprises little solid of rotation (3) and little turning axle (4), and described little turning axle (4) solid of rotation (3) front end from childhood axially inserts in the little solid of rotation (3), and little turning axle (4) front end stretches out outside the little solid of rotation (3),
Described little turning axle (4) front end is fixedlyed connected with big turning axle (2) rear end, connector (5) is fixedly connected on big turning axle (2) front end, top cover (6) is fixedly connected on big solid of rotation (1) rear end, and end cap (7) is fixedly connected on little solid of rotation (3) and little turning axle (4) rear end
Axially offer many oil circuit holes on described big turning axle (2) and the little turning axle (4), center that is arranged in big turning axle (2) and little turning axle (4) wherein, be the draining hole, all the other are distributed in the periphery in draining hole, be low pressure oil circuit hole, also axially offer many working connection holes on the described big turning axle (2), this working connection hole is distributed in the periphery in low pressure oil circuit hole
Corresponding to the hole, low pressure road on big turning axle (2) and the little turning axle (4), radially also offer on little solid of rotation (3) and the connector (5) a plurality of low pressure hydraulic fluid ports with it one by one correspondence be connected; Corresponding to the working connection hole on the big turning axle (2), radially also offer on the big solid of rotation (1) many main hydraulic fluid ports with it one by one correspondence be connected;
Corresponding to the draining hole at big turning axle (2) and little turning axle (4) center, end cap (7) and connector (8) center also offer one and are attached thereto logical drain tap.
2. a kind of heavy wool path large-sized machinery hydraulic according to claim 1 central authorities swivel coupling is characterized in that fixedlying connected by carriage (9) between described big solid of rotation (1) rear end and the little solid of rotation (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100191573A CN101216135B (en) | 2008-01-14 | 2008-01-14 | Multi-oil path large-sized machinery hydraulic central swivel joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100191573A CN101216135B (en) | 2008-01-14 | 2008-01-14 | Multi-oil path large-sized machinery hydraulic central swivel joint |
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| CN101216135A CN101216135A (en) | 2008-07-09 |
| CN101216135B true CN101216135B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100191573A Active CN101216135B (en) | 2008-01-14 | 2008-01-14 | Multi-oil path large-sized machinery hydraulic central swivel joint |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891116A (en) * | 2010-08-18 | 2010-11-24 | 海克力斯(上海)液压机械有限公司 | Split rotating shaft joint |
| CN103322354A (en) * | 2013-06-28 | 2013-09-25 | 长治清华机械厂 | Rotary joint |
| CN110486555A (en) * | 2019-08-21 | 2019-11-22 | 江苏长龄液压股份有限公司 | A kind of monoblock type variable diameter long axis double-rotary center-rotary joint |
| CN110553108B (en) * | 2019-10-10 | 2024-02-20 | 青岛达能环保设备股份有限公司 | Self-balancing floating rotary joint system with feed inlet and discharge outlet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789556Y (en) * | 2005-05-02 | 2006-06-21 | 中国人民解放军63983部队 | Multifunction central rotating connection |
| CN201152296Y (en) * | 2008-01-14 | 2008-11-19 | 江阴市长龄机械制造有限公司 | Multi- oil path hydraulic central swivel joint for large-sized machinery |
-
2008
- 2008-01-14 CN CN2008100191573A patent/CN101216135B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789556Y (en) * | 2005-05-02 | 2006-06-21 | 中国人民解放军63983部队 | Multifunction central rotating connection |
| CN201152296Y (en) * | 2008-01-14 | 2008-11-19 | 江阴市长龄机械制造有限公司 | Multi- oil path hydraulic central swivel joint for large-sized machinery |
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| CN101216135A (en) | 2008-07-09 |
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Owner name: CHANGLING HYDRAULIC PRESS PLANT, JIANGYIN CITY Free format text: FORMER OWNER: JIANGYIN CHANGLING MACHINERY MANUFACTURING CO., LTD. Effective date: 20091218 |
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Effective date of registration: 20091218 Address after: 1, Da Li Garden Road, Jiangyin Town, Jiangsu, China: 214422 Applicant after: Changling Hydraulic Press Plant, Jiangyin City Address before: 1, Da Li Garden Road, Jiangyin Town, Jiangsu, China: 214422 Applicant before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |
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Owner name: JIANGYIN CHANGLING MACHINERY MANUFACTURING CO., LT Free format text: FORMER OWNER: CHANGLING HYDRAULIC PRESS PLANT, JIANGYIN CITY Effective date: 20110314 |
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Effective date of registration: 20110314 Address after: 214422, No. 1, Great Garden Road, development zone, cloud Pavilion Town, Jiangyin, Jiangsu Patentee after: Jiangyin Changling Machinery Manufacturing Co., Ltd. Address before: 214422, No. 1, Great Garden Road, development zone, cloud Pavilion Town, Jiangyin, Jiangsu Patentee before: Changling Hydraulic Press Plant, Jiangyin City |
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Owner name: JIANGYIN CHANGLING HYDRAULIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGYIN CHANGLING MACHINERY MANUFACTURING CO., LTD. Effective date: 20110614 |
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Free format text: CORRECT: ADDRESS; FROM: 214422 NO. 1, DAYUANLI ROAD, DEVELOPMENT ZONE, YUNTING TOWN, JIANGYIN CITY, JIANGSU PROVINCE TO: 214422 NO. 1, DAYUANLI ROAD, YUNTING SUBDISTRICT, JIANGYIN CITY, JIANGSU PROVINCE |
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Effective date of registration: 20110614 Address after: 214422, No. 1 Park Road, Jiangyin, Jiangsu Province Patentee after: Jiangyin Changling Hydraulic Technology Co., Ltd. Address before: 214422, No. 1, Great Garden Road, development zone, cloud Pavilion Town, Jiangyin, Jiangsu Patentee before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |
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Owner name: JIANGYIN CHANGLING MACHINERY MANUFACTURING CO., LT Free format text: FORMER OWNER: JIANGYIN CHANGLING HYDRAULIC COMPONENTS FACTORY Effective date: 20110715 |
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Free format text: CORRECT: ADDRESS; FROM: 214422 NO. 1, DAYUANLI ROAD, YUNTING SUBDISTRICT, JIANGYIN CITY, JIANGSU PROVINCE TO: 214422 NO. 1, DAYUANLI ROAD, DEVELOPMENT ZONE, YUNTING TOWN, JIANGYIN CITY, JIANGSU PROVINCE |
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Effective date of registration: 20110715 Address after: 214422, No. 1, Great Garden Road, development zone, cloud Pavilion Town, Jiangyin, Jiangsu Patentee after: Jiangyin Changling Machinery Manufacturing Co., Ltd. Address before: 214422, No. 1 Park Road, Jiangyin, Jiangsu Province Patentee before: Jiangyin Changling Hydraulic Technology Co., Ltd. |
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Address after: 214422 1, Dayuan Li Road, Jiangyin, Jiangsu. Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 1, Dayuan Li Road, Jiangyin, Jiangsu. Patentee before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |
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Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 1, Dayuan Li Road, Jiangyin, Jiangsu. Patentee before: Jiangsu Changling hydraulic Limited by Share Ltd |
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