CN103062558A - Multi-channel swivel joint capable of maintaining pressure effectively - Google Patents
Multi-channel swivel joint capable of maintaining pressure effectively Download PDFInfo
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- CN103062558A CN103062558A CN 201110322033 CN201110322033A CN103062558A CN 103062558 A CN103062558 A CN 103062558A CN 201110322033 CN201110322033 CN 201110322033 CN 201110322033 A CN201110322033 A CN 201110322033A CN 103062558 A CN103062558 A CN 103062558A
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- rotation
- turning axle
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Abstract
The invention relates to a multi-channel swivel joint capable of maintaining pressure effectively. The multi-channel swivel joint comprises a swivel body (1) and a swivel shaft (2) and is characterized in that the swivel shaft (2) comprises an upper pipeline connecting section (2.1) and a lower mounting section (2.2), four main oil channel holes and a low-pressure oil channel hole are axially formed in the swivel shaft (2), a dustproof ring (9) is arranged in an annular groove between the swivel body (1) and the lower mounting section (2.2), a rotating sealing ring (8) comprises a dust scraping ring (8.1) and an O-shaped ring III (8.2), and the O-shaped ring III (8.2) is fixed on the dust scraping ring (8.1) which is tightly pressed on the swivel shaft (2). According to the multi-channel swivel joint capable of maintaining pressure effectively, damage of the swivel joint during working because of single oil pressure is avoided, a hydraulic system and a position, between a fixed part and a rotating part, in a circuit can rotate 360 degrees relatively, and each oil channel is not in series connection with circuit action.
Description
Technical field
The present invention relates to a kind of effectively Multichannel swivel joint of pressurize, 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, can not allow the relative rotating 360 degrees with rotating part of standing part, cause pipeline and circuit to interfere, and oil circuit is upper and lower not smooth, each oil circuit and circuit operation series connection.
And swivel coupling in the past only has one-sided hydraulic fluid port to carry out work, can cause larger pressure to swivel coupling is one-sided, and therefore common rotating seal ring can not effectively guarantee the pressure of swivel coupling inside, thereby has affected the quality of swivel coupling.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of permanent pressurize is provided, prevent that swivel coupling when work is subjected to one-sided oil pressure and damages, can relative rotating 360 degrees between standing part and the rotating part in hydraulic system and the circuit, and oil circuit is upper and lower unimpeded, the effectively Multichannel swivel joint of pressurize that each oil circuit and circuit operation are not connected.
The object of the present invention is achieved like this:
The present invention is the Multichannel swivel joint of pressurize effectively, comprise solid of rotation and turning axle, described turning axle is comprised of upper pipeline linkage section and lower construction section, described lower construction section inserts in the solid of rotation from the top axial of solid of rotation, described upper pipeline linkage section is exposed to solid of rotation, described turning axle axially offers four working connection holes and a low pressure oil way hole, the upper end-hole in described four working connection holes is distributed on the circumferential surface of upper end of turning axle, 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, radially have a low pressure hydraulic fluid port on the described solid of rotation and be connected with low pressure oil way hole on the turning axle, radially have a low pressure hydraulic fluid port on the upper pipeline linkage section of described turning axle and be connected with low pressure oil way hole on the turning axle.
Be provided with the water seal circle between described solid of rotation upper end and the turning axle, the lower end of described solid of rotation is provided with end cap, described end cap is bolted on the lower end of solid of rotation, be provided with O type circle I between the lower end of described solid of rotation and the end cap, be provided with back-up ring and circlip for shaft between the lower end of the lower end of described solid of rotation and lower construction section, in the annular groove between described solid of rotation and the lower construction section rotating seal ring and dust ring are housed, this rotating seal ring is comprised of dust blowing ring and O type circle III, O type circle III is fixed on the dust blowing ring, and the dust blowing ring is pressed on the turning axle.
The termination, upper end in described low pressure oil way hole is blocked with plug, and the lower end in described four working connection holes is by bolt and the sealing of O type circle II.
Compared with prior art, the invention has the beneficial effects as follows:
The Multichannel swivel joint of this effectively pressurize 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, pipeline and circuit just can not interfere, it is unimpeded that upper and lower oil circuit and circuit can keep, and each oil circuit and circuit operation are not connected.And the Multichannel swivel joint of the effective pressurize of instinct provides multichannel oil circuit and multiplex circuit, so that excavator, loader can be carried out the action of more complexity, has improved its applicability.And rotating seal ring is combined by dust blowing ring and elasticity O type circle, the O type circle of this Assembled rotary seal ring is fixed on the dust blowing ring, the dust blowing ring plays the dust blowing effect, O type circle then provides pressure to the dust blowing ring, guarantee that the dust blowing ring is pressed on the turning axle, thereby can prevent effectively that swivel coupling when work be subjected to one-sided oil pressure large and damage, and can long-acting pressurize, thereby guarantee the quality of swivel coupling.
Description of drawings
Fig. 1 is the effectively Facad structure schematic representation of the Multichannel swivel joint of pressurize of the present invention.
Fig. 2 is the I-I sectional view of Fig. 1.
Fig. 3 is the plan view of Fig. 1.
Fig. 4 is the worm's eye view of Fig. 1.
Fig. 5 is the structural representation of rotating seal ring among Fig. 2.
Wherein: solid of rotation 1, turning axle 2, upper pipeline linkage section 2.1, lower construction section 2.2, water seal circle 3, end cap 4, O type circle I 5, back-up ring 6, circlip for shaft 7, rotating seal ring 8, dust blowing ring 8.1, O type circle III 8.2, dust ring 9, plug 10, bolt 11, O type circle II 12.
Embodiment
Referring to Fig. 1 to Fig. 5, the present invention relates to a kind of effectively Multichannel swivel joint of pressurize, comprise solid of rotation 1 and turning axle 2, described turning axle 2 is comprised of upper pipeline linkage section 2.1 and lower construction section 2.2, described lower construction section 2.2 inserts in the solid of rotation 1 from the top axial of solid of rotation 1, the lower end of described solid of rotation 1 is lower than the horizontal position of lower construction section 2.2 lower ends, described upper pipeline linkage section 2.1 is exposed to solid of rotation 1, be provided with water seal circle 3 between described solid of rotation 1 upper end and the turning axle 2, be used for preventing gas leak or entering, the lower end of described solid of rotation 1 is provided with end cap 4, described end cap 4 is bolted on the lower end of solid of rotation 1, be provided with O type circle I 5 between the lower end of described solid of rotation 1 and the end cap 4, be provided with back-up ring 6 and circlip for shaft 7 between the lower end of the lower end of described solid of rotation 1 and lower construction section 2.2, in the annular groove between described solid of rotation 1 and the lower construction section 2.2 rotating seal ring 8 and dust ring 9 are housed, this rotating seal ring 8 is comprised of dust blowing ring 8.1 and O type circle III 8.2, O type circle III 8.2 is fixed on the dust blowing ring 8.1, dust blowing ring 8.1 plays the dust blowing effect, O type circle III 8.2 then provides pressure to dust blowing ring 8.1, guarantee that dust blowing ring 8.1 is pressed on the turning axle 2, thereby damaged greatly by one-sided oil pressure in the time of can effectively preventing swivel coupling work, and can long-acting pressurize, thereby have guaranteed the quality of swivel coupling.
Such as Fig. 2, described turning axle 2 axially offers four working connection holes and a low pressure oil way hole, described four working connection holes are A hole, B hole, C hole and the D hole among Fig. 1, Fig. 2 and Fig. 3, described low pressure oil way hole is the E hole among Fig. 2 and Fig. 3, the upper end-hole in described four working connection holes is distributed on the circumferential surface of upper end of turning axle 2, described low pressure oil way hole E is located between B hole and the D hole, the termination, upper end of described low pressure oil way hole E is blocked with plug 10, and the lower end in described four working connection holes is by bolt 11 and 12 sealings of O type circle II.
Such as Fig. 1 and Fig. 2, corresponding to four working connection holes and the low pressure oil way hole E 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, radially have a low pressure oil crossing E on the described solid of rotation 1 and be connected with low pressure oil way hole E on the turning axle 2, radially have a low pressure oil crossing E ' on the upper pipeline linkage section 2.1 of described turning axle 2 and be connected with low pressure oil way hole E on the turning axle 2.
Claims (2)
1. effective Multichannel swivel joint of pressurize, comprise solid of rotation (1) and turning axle (2), it is characterized in that: described turning axle (2) is comprised of upper pipeline linkage section (2.1) and lower construction section (2.2), described lower construction section (2.2) inserts in the solid of rotation (1) from the top axial of solid of rotation (1), described upper pipeline linkage section (2.1) is exposed to solid of rotation (1), described turning axle (2) axially offers four working connection holes and a low pressure oil way hole, the upper end-hole in described four working connection holes is distributed on the circumferential surface of upper end of 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, radially have a low pressure hydraulic fluid port on the described solid of rotation (1) and be connected with low pressure oil way hole on the turning axle (2), radially have a low pressure hydraulic fluid port on the upper pipeline linkage section (2.1) of described turning axle (2) and be connected with low pressure oil way hole on the turning axle (2);
Be provided with water seal circle (3) between described solid of rotation (1) upper end and the turning axle (2), the lower end of described solid of rotation (1) is provided with end cap (4), described end cap (4) is bolted on the lower end of solid of rotation (1), be provided with O type circle I (5) between the lower end of described solid of rotation (1) and the end cap (4), be provided with back-up ring (6) and circlip for shaft (7) between the lower end of the lower end of described solid of rotation (1) and lower construction section (2.2), rotating seal ring (8) and dust ring (9) are housed in the annular groove between described solid of rotation (1) and the lower construction section (2.2), this rotating seal ring (8) is comprised of dust blowing ring (8.1) and O type circle III (8.2), O type circle III (8.2) is fixed on the dust blowing ring (8.1), and dust blowing ring (8.1) is pressed on the turning axle (2).
2. a kind of effectively Multichannel swivel joint of pressurize according to claim 1, it is characterized in that: the termination, upper end in described low pressure oil way hole is blocked with plug (10), and the lower end in described four working connection holes is by bolt (11) and O type circle II (12) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110322033 CN103062558A (en) | 2011-10-21 | 2011-10-21 | Multi-channel swivel joint capable of maintaining pressure effectively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110322033 CN103062558A (en) | 2011-10-21 | 2011-10-21 | Multi-channel swivel joint capable of maintaining pressure effectively |
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| Publication Number | Publication Date |
|---|---|
| CN103062558A true CN103062558A (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110322033 Pending CN103062558A (en) | 2011-10-21 | 2011-10-21 | Multi-channel swivel joint capable of maintaining pressure effectively |
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| Country | Link |
|---|---|
| CN (1) | CN103062558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931262A (en) * | 2017-03-24 | 2017-07-07 | 张嗣远 | A kind of rotary liquid feeding device |
-
2011
- 2011-10-21 CN CN 201110322033 patent/CN103062558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931262A (en) * | 2017-03-24 | 2017-07-07 | 张嗣远 | A kind of rotary liquid feeding device |
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| 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 |