CN201152296Y - Multi- oil path hydraulic central swivel joint for large-sized machinery - Google Patents
Multi- oil path hydraulic central swivel joint for large-sized machinery Download PDFInfo
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- CN201152296Y CN201152296Y CNU2008200308737U CN200820030873U CN201152296Y CN 201152296 Y CN201152296 Y CN 201152296Y CN U2008200308737 U CNU2008200308737 U CN U2008200308737U CN 200820030873 U CN200820030873 U CN 200820030873U CN 201152296 Y CN201152296 Y CN 201152296Y
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- turning axle
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Abstract
The utility model relates to a hydraulic central rotating connection for a multi-oil-way large-scale mechanisms, which is mainly used for the whole hydraulic system of mechanisms such as digging machines, cranes, land scrapers, tower cranes, and so on, and comprises a big rotating connection, a small rotating connection, a connector (5), a top cover (6), and an end cover (7), wherein, the big rotating connection comprises a big rotating body (1) and a big rotating shaft (2); the small rotating connection comprises a small rotating body (3) and a small rotating shaft (4); the axial centers of the big rotating shaft and the small rotating shaft are provided with an oil-discharging hole; a plurality of main oil-way holes and low-pressure oil-way holes are evenly distributed at the periphery of the oil-discharging hole, the big and the small rotating bodies and the connector are radially provided with a plurality of low-pressure oil mouths and main oil mouths corresponding to the low-pressure oil-way holes and main oil-way holes on the big and the small rotating shafts, and the low-pressure oil mouths and main oil mouths are connected with the low-pressure oil-way holes and main oil-way holes on the big and the small rotating shafts are correspondingly communicated with each other one by one; corresponding to the oil-discharging holes at the centers of the big rotating shaft (2) and the small rotating shaft (4), the centers of the end cover (7) and the connector (8) are also provided with an oil-discharging mouth connected with the oil-discharging hole. The hydraulic central rotating connection makes use of the big and the small rotating joint structures to achieve the multi-oil-way connection so that the hydraulic central rotating joint is especially suitable for the large-scale mechanisms needing a plurality of oil ways.
Description
Technical field
The utility model 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 purpose of this utility model is to overcome above-mentioned deficiency, and a kind of hydraulic pressure central authorities swivel coupling that is applicable to the big machinery on heavy wool road is provided.
The purpose of this utility model is achieved in that 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 utility model 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 utility model heavy wool path large-sized machinery hydraulic central authorities swivel coupling.
Fig. 2 is that the X of Fig. 1 is to view.
Fig. 3 is the internal structure schematic representation of the utility model heavy wool path large-sized machinery hydraulic central authorities swivel coupling.
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 the utility model heavy wool path large-sized machinery hydraulic central authorities swivel coupling assembles.
Fig. 8 is the schematic diagram of the utility model heavy wool path large-sized machinery hydraulic central authorities swivel coupling.
Fig. 9 is the oil circuit figure of the utility model heavy wool path large-sized machinery hydraulic central authorities swivel coupling.
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 utility model 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 utility model 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, the central swivel coupling of a kind of heavy wool path large-sized machinery hydraulic 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 |
|---|---|---|---|
| CNU2008200308737U CN201152296Y (en) | 2008-01-14 | 2008-01-14 | Multi- oil path hydraulic central swivel joint for large-sized machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200308737U CN201152296Y (en) | 2008-01-14 | 2008-01-14 | Multi- oil path hydraulic central swivel joint for large-sized machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152296Y true CN201152296Y (en) | 2008-11-19 |
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ID=40127974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200308737U Expired - Lifetime CN201152296Y (en) | 2008-01-14 | 2008-01-14 | Multi- oil path hydraulic central swivel joint for large-sized machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152296Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
-
2008
- 2008-01-14 CN CNU2008200308737U patent/CN201152296Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081119 Effective date of abandoning: 20080114 |