CN103062553A - Hydraulic rotary joint - Google Patents
Hydraulic rotary joint Download PDFInfo
- Publication number
- CN103062553A CN103062553A CN 201110318316 CN201110318316A CN103062553A CN 103062553 A CN103062553 A CN 103062553A CN 201110318316 CN201110318316 CN 201110318316 CN 201110318316 A CN201110318316 A CN 201110318316A CN 103062553 A CN103062553 A CN 103062553A
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- Prior art keywords
- turning axle
- rotation
- solid
- rotary
- connection holes
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Abstract
The invention relates to a hydraulic rotary joint comprising a rotary body (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 from the top end of the rotary body (1), the top end of the rotary shaft (2) extends out of the rotary body (1), a flange (3) is arranged between the top end of the rotary body (1) and the rotary shaft (2), a rotary sealing ring (5) and a dustproof sealing ring (6) are arranged in a circular groove between the rotary body (1) and the rotary shaft (2), an upper lip and a lower lip (6.1) are arranged on one side of the dustproof sealing ring (6) contacting with the rotary shaft (2) to form double lips, and the upper lip and the lower lip (6.1) are attached to the outer wall of the rotary shaft (2). According to the hydraulic rotary joint, dust is not prone to entering and oil is not prone to leakage. Besides, a rotary angle is large, interference does not exist among pipelines, and operation and maintenance are very convenient.
Description
Technical field
The present invention relates to a kind of hydraumatic swivel joint, be mainly used in the hydraulic system of the machineries such as large-tonnage excavator, hoist, grader, tower crane, be to connect standing part and the hydraulic pipe line of rotating part and the link of circuit in whole hydraulic system and the circuit, belong to technical field of engineering machinery.
Background technique
Hydraulic shovel, loop wheel machine, loader etc., two-part are need to 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 comprised 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.
Yet in swivel coupling connecting fluid pressing system in the past and the circuit behind the hydraulic pipe line and circuit of standing part and rotating part, standing part and rotating part relative rotation angle are generally at 50 ° to 80 °, its angle of revolution is less, Operation and maintenance are inconvenient, also interfere easily between the pipeline, cause the pipeline life-span shorter.
And swivel coupling in the past is relatively poor with extraneous sealability, extraneous dust creeps in the swivel coupling easily, affected the performance of swivel coupling, and the oil in the swivel coupling also spills easily, solid of rotation in the swivel coupling and turning axle relatively rotated also produced impact, need to often oil, increase workman's labor intensity.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of dust to be difficult for entering, oil is difficult for spilling, and the angle of revolution is larger, and Operation and maintenance hydraumatic swivel joint easily.
The object of the present invention is achieved like this:
Hydraumatic swivel joint of the present invention, 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 dust-proof seal ring are housed in the annular groove between described solid of rotation and the turning axle, the side that this dust-proof seal ring contacts with turning axle is provided with up and down two lips, form double-lip, should be up and down two lips all be adjacent to the outer wall of 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 four working connection holes corresponding being connected one by one.
Compared with prior art, the invention has the beneficial effects as follows:
This hydraumatic swivel joint can connect hydraulic pipe line and the circuit of standing part and rotating part in whole hydraulic system and the circuit, and make standing part and the rotating part can relative rotating 360 degrees, Operation and maintenance are inconvenient, just can not interfere between the pipeline, so that the pipeline life-span is longer, and dust-proof seal ring is made the double-lip form, the one side that this dust-proof seal ring contacts with turning axle is provided with up and down two lips, top and the turning axle of two lips fit tightly up and down, so that extraneous dust is difficult for creeping in the swivel coupling, and oil can not spill internally, thereby guaranteed the performance of swivel coupling, need not often to oil, reduced workman's labor intensity.
Description of drawings
Fig. 1 is the sectional view of hydraumatic swivel joint of the present invention.
Fig. 2 is the plan view of hydraumatic swivel joint of the present invention.
Fig. 3 is the structural representation of dust ring among Fig. 1.
Wherein: solid of rotation 1, turning axle 2, flange 3, water seal circle 4, rotating seal ring 5, dust-proof seal ring 6, lip 6.1, base plate 7, plug 8, O type circle 9.
Embodiment
Referring to Fig. 1 to Fig. 3, the present invention relates to a kind of hydraumatic swivel 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, rotating seal ring 5 and dust-proof seal ring 6 are housed in the annular groove between described solid of rotation 1 and the turning axle 2, the side that this dust-proof seal ring 6 contacts with turning axle 2 is provided with up and down two lips 6.1, form double-lip, should be up and down two lips 6.1 all be adjacent to the outer wall of turning axle 2 so that extraneous dust is difficult for creeping in the swivel coupling, and oil can not spill internally, thereby guaranteed the performance of swivel coupling, need not often to oil, reduced workman's labor intensity.
Such 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.
Such 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 four working connection holes corresponding being connected one by one, described four main hydraulic fluid ports are A mouth, B mouth, C mouth and D mouth.
Claims (2)
1. hydraumatic swivel 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 dust-proof seal ring (6) are housed in the annular groove between described solid of rotation (1) and the turning axle (2), the side that this dust-proof seal ring (6) contacts with turning axle (2) is provided with up and down two lips (6.1), form double-lip, two lips (6.1) all are adjacent to the outer wall of turning axle (2) up and down.
2. a kind of hydraumatic swivel joint according to claim 1, it is characterized in that: 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 four working connection holes corresponding being connected one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110318316 CN103062553A (en) | 2011-10-19 | 2011-10-19 | Hydraulic rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110318316 CN103062553A (en) | 2011-10-19 | 2011-10-19 | Hydraulic rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062553A true CN103062553A (en) | 2013-04-24 |
Family
ID=48105322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110318316 Pending CN103062553A (en) | 2011-10-19 | 2011-10-19 | Hydraulic rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062553A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762994A (en) * | 2017-02-16 | 2017-05-31 | 贵州詹阳动力重工有限公司 | Dynamic connector, double car body all-terrain vehicle |
| CN106837937A (en) * | 2017-02-16 | 2017-06-13 | 贵州詹阳动力重工有限公司 | A kind of pair of car body all-terrain vehicle and its dynamic connector |
| CN108223946A (en) * | 2016-12-14 | 2018-06-29 | 中航通飞研究院有限公司 | A kind of novel multi-channel rotary joint |
-
2011
- 2011-10-19 CN CN 201110318316 patent/CN103062553A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223946A (en) * | 2016-12-14 | 2018-06-29 | 中航通飞研究院有限公司 | A kind of novel multi-channel rotary joint |
| CN106762994A (en) * | 2017-02-16 | 2017-05-31 | 贵州詹阳动力重工有限公司 | Dynamic connector, double car body all-terrain vehicle |
| CN106837937A (en) * | 2017-02-16 | 2017-06-13 | 贵州詹阳动力重工有限公司 | A kind of pair of car body all-terrain vehicle and its dynamic connector |
| CN106762994B (en) * | 2017-02-16 | 2019-11-19 | 贵州詹阳动力重工有限公司 | Dynamic connector, double car body all-terrain vehicle |
| CN106837937B (en) * | 2017-02-16 | 2019-11-19 | 贵州詹阳动力重工有限公司 | A kind of double car body all-terrain vehicle and its dynamic connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |