CN202082531U - Hydraulic rotary joint - Google Patents
Hydraulic rotary joint Download PDFInfo
- Publication number
- CN202082531U CN202082531U CN2011201476445U CN201120147644U CN202082531U CN 202082531 U CN202082531 U CN 202082531U CN 2011201476445 U CN2011201476445 U CN 2011201476445U CN 201120147644 U CN201120147644 U CN 201120147644U CN 202082531 U CN202082531 U CN 202082531U
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- CN
- China
- Prior art keywords
- turning axle
- rotation
- solid
- rotary shaft
- connection holes
- 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
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Abstract
The utility model relates to a hydraulic rotary joint, which comprises a rotor (1) and a rotary shaft (2). The hydraulic rotary joint is characterized in that the bottom end of the rotary shaft (2) is axially inserted into the top end of the rotor (1), the top end of the rotary shaft (2) is exposed from the rotor (1), a flange (3) is arranged between the top end of the rotor (1) and the rotary shaft (2), four main oil circuit holes are axially arranged on the rotary shaft (2), upper openings of the four main oil circuit holes are distributed on the upper-end peripheral face of the rotary shaft (2), screw plugs (8) and O-shaped rings (9) are arranged at top openings of the four main oil circuit holes, and four main oil holes are radially arranged on the rotor (1) to be communicated with the four main oil circuit holes on the rotary shaft (2) in one-to-one correspondence. Rotation angle of the hydraulic rotary joint is larger, so that pipelines do not mutually interfere, and the hydraulic rotary joint is quite convenient in operation and maintenance.
Description
Technical field
The utility model relates to a kind of hydraulic gyration joint, being mainly used in the hydraulic system of machineries such as large-tonnage excavator, hoist, grader, tower crane, is to connect standing part and the hydraulic pipe line of rotating part and the link of circuit in whole hydraulic system and the circuit.
Background technique
Hydraulic shovel, loop wheel machine, loader etc., two-part are need be rotating about it, this just exists the oil circuit of rotating part and standing part and the connectivity problem of circuit.Swivel coupling is made up of solid of rotation, turning axle and lid etc.During use, the revolution lower bolster of solid of rotation and hydraulic shovel, hoist machinery is fixed, and the mounting plate on the turning axle supports with the revolution on the revolution upper mounting plate and is connected.Hydralic hose and electric wire are installed on respectively on each hydraulic fluid port and circuit of solid of rotation and turning axle, and the upper mounting plate of hydraulic machinery then drives the turning axle rotation.
After yet swivel coupling in the past connects the hydraulic pipe line and circuit of standing part and rotating part in hydraulic system and the circuit, standing part and rotating part relative rotation angle are generally at 50 ° to 80 °, its angle of revolution is less, the Operation and maintenance inconvenience, also interfere easily between the pipeline, cause the pipeline life-span shorter.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of angle of revolution bigger, can not interfere between the pipeline, and Operation and maintenance hydraulic gyration joint easily.
The purpose of this utility model is achieved in that
The utility model hydraulic gyration joint, comprise solid of rotation and turning axle, insert from the top axial of solid of rotation the bottom of described turning axle, the top of described turning axle is exposed to solid of rotation, be provided with flange between the top of described solid of rotation and the turning axle, be provided with the water seal circle between the bottom surface of described flange and the top of turning axle, the bottom of described turning axle is provided with base plate, described base plate is fixed by the bottom of bolt and packing ring and turning axle, rotating seal ring and wear-resistant ring are housed in the annular groove between described solid of rotation and the turning axle, described turning axle axially offers four working connection holes, the upper end open in described four working connection holes is distributed on the upper end circumferential surface of turning axle, the top port in described four working connection holes is provided with screw plug head and O type circle, radially have on the described solid of rotation four main hydraulic fluid ports with turning axle on corresponding one by one being connected of four working connection holes.
Compared with prior art, the beneficial effects of the utility model are:
This hydraulic gyration joint can connect the hydraulic pipe line and the circuit of standing part and rotating part in whole hydraulic system and the circuit, and make standing part can rotate 360 ° relatively with rotating part, the Operation and maintenance inconvenience just can not interfere between the pipeline, makes that the pipeline life-span is longer.And this swivel coupling provides multichannel oil circuit and multiplex circuit, makes excavator, loader can carry out the action of more complexity, has improved its applicability.
Description of drawings
Fig. 1 is the sectional view of the utility model hydraulic gyration joint.
Fig. 2 is the plan view of the utility model hydraulic gyration joint.
Wherein: solid of rotation 1, turning axle 2, flange 3, water seal circle 4, rotating seal ring 5, wear-resistant ring 6, base plate 7, plug 8, O type circle 9.
Embodiment
Referring to Fig. 1 and Fig. 2, the utility model relates to a kind of hydraulic gyration joint, comprise solid of rotation 1 and turning axle 2, insert from the top axial of solid of rotation 1 bottom of described turning axle 2, the top of described turning axle 2 is exposed to solid of rotation 1, be provided with flange 3 between the top of described solid of rotation 1 and the turning axle 2, be provided with water seal circle 4 between the top of the bottom surface of described flange 3 and turning axle 2, the bottom of described turning axle 2 is provided with base plate 7, described base plate 7 is fixed by the bottom of bolt and packing ring and turning axle 2, and rotating seal ring 5 and wear-resistant ring 6 are housed in the annular groove between described solid of rotation 1 and the turning axle 2.
As Fig. 1 and Fig. 2, described turning axle 2 axially offers four working connection holes, described four working connection holes are A hole, B hole, C hole and the D hole among Fig. 1 and Fig. 2, the upper end open in described four working connection holes is distributed on the upper end circumferential surface of turning axle 2, and the top port in described four working connection holes is blocked with screw plug head 8 and O type circle 9.
As Fig. 1 and Fig. 2, corresponding to four working connection holes on the turning axle 2, radially have on the described solid of rotation 1 four main hydraulic fluid ports with turning axle 2 on corresponding one by one being connected of four working connection holes, described four main hydraulic fluid ports are A mouth, B mouth, C mouth and D mouth.
Claims (1)
1. hydraulic gyration joint, comprise solid of rotation (1) and turning axle (2), it is characterized in that: insert from the top axial of solid of rotation (1) bottom of described turning axle (2), the top of described turning axle (2) is exposed to solid of rotation (1), be provided with flange (3) between the top of described solid of rotation (1) and the turning axle (2), be provided with water seal circle (4) between the top of the bottom surface of described flange (3) and turning axle (2), the bottom of described turning axle (2) is provided with base plate (7), described base plate (7) is fixed by the bottom of bolt and packing ring and turning axle (2), rotating seal ring (5) and wear-resistant ring (6) are housed in the annular groove between described solid of rotation (1) and the turning axle (2), described turning axle (2) axially offers four working connection holes, the upper end open in described four working connection holes is distributed on the upper end circumferential surface of turning axle (2), the top port in described four working connection holes is provided with screw plug head (8) and O type circle (9), radially have on the described solid of rotation (1) four main hydraulic fluid ports with turning axle (2) on corresponding one by one being connected of four working connection holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201476445U CN202082531U (en) | 2011-05-11 | 2011-05-11 | Hydraulic rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201476445U CN202082531U (en) | 2011-05-11 | 2011-05-11 | Hydraulic rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082531U true CN202082531U (en) | 2011-12-21 |
Family
ID=45343160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201476445U Expired - Fee Related CN202082531U (en) | 2011-05-11 | 2011-05-11 | Hydraulic rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261272A (en) * | 2014-09-16 | 2015-01-07 | 连云港佳普石化机械有限公司 | Hose crane |
| CN111928043A (en) * | 2020-07-31 | 2020-11-13 | 三一汽车制造有限公司 | Center swivel joint, hydraulic control system and work vehicle |
-
2011
- 2011-05-11 CN CN2011201476445U patent/CN202082531U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261272A (en) * | 2014-09-16 | 2015-01-07 | 连云港佳普石化机械有限公司 | Hose crane |
| CN111928043A (en) * | 2020-07-31 | 2020-11-13 | 三一汽车制造有限公司 | Center swivel joint, hydraulic control system and work vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140511 |