CN202302490U - Multichannel hydraulic rotary connector with good sealing effect - Google Patents
Multichannel hydraulic rotary connector with good sealing effect Download PDFInfo
- Publication number
- CN202302490U CN202302490U CN2011204139528U CN201120413952U CN202302490U CN 202302490 U CN202302490 U CN 202302490U CN 2011204139528 U CN2011204139528 U CN 2011204139528U CN 201120413952 U CN201120413952 U CN 201120413952U CN 202302490 U CN202302490 U CN 202302490U
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- Prior art keywords
- rotation
- solid
- turning axle
- low pressure
- water seal
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Abstract
The utility model relates to a multichannel hydraulic rotary connector with a good sealing effect, which comprises a rotary body (1) and a rotary shaft (2) and is characterized in that the rotary shaft (2) is composed of an upper pipeline connection section (2.1) and a lower installation section (2.2), the rotary shaft (2) is axially provided with four main oil channel hole and a low pressure oil channel hole, a water seal (3) is positioned between the upper end of the rotary body (1) and the rotary shaft (2), a V-shaped groove (3.2) is arranged at the top of the section of the water seal (3), and a contact face between the water seal (3) and the rotary shaft (2) is an inclined face (3.1). The multichannel hydraulic rotary connector with the good sealing effect prevents dust from entering and enables fixed portions and rotary portions in hydraulic systems and circuits to be capable of rotating 360 degrees relatively. Oil channels are unimpeded. Motions of the oil channels and the circuits are not in series.
Description
Technical field
The utility model relates to a kind of multichannel hydraulic gyration joint of good sealing effect; Be mainly used in the hydraulic system of 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 be rotating about it, this just exists the oil circuit of rotating part and standing part and the connectivity problem of circuit.The multichannel hydraulic gyration joint of good sealing effect 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 multichannel hydraulic gyration joint in the past connects the hydraulic pipe line and circuit of standing part and rotating part in hydraulic system and the circuit; Can not let standing part and rotating part rotate 360 ° relatively; 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 is relatively poor with extraneous sealability, and extraneous dust creeps in the swivel coupling easily, and the performance of swivel coupling has been produced influence, has influenced its quality.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency; Provide a kind of dust to be difficult for getting into; Can rotate 360 ° relatively between standing part and the rotating part in hydraulic system and the circuit; And oil circuit is upper and lower unimpeded, the multichannel hydraulic gyration joint of the good sealing effect that each oil circuit and circuit operation are not connected.
The purpose of the utility model is achieved in that
The multichannel hydraulic gyration joint of the utility model good sealing effect; Comprise solid of rotation and turning axle; Said turning axle is made up of upper pipeline linkage section and following construction section; Said construction section down inserts in the solid of rotation from the top axial of solid of rotation, and said upper pipeline linkage section is exposed to solid of rotation, and said turning axle axially offers four working connection holes and a low pressure oil circuit hole; The upper end-hole in said four working connection holes is distributed on the circumferential surface of upper end of turning axle; Radially have on the said solid of rotation four main hydraulic fluid ports with turning axle on corresponding one by one being connected of four working connection holes, radially have a low pressure hydraulic fluid port on the said solid of rotation and be connected with low pressure oil circuit hole on the turning axle, radially have a low pressure hydraulic fluid port on the upper pipeline linkage section of said turning axle and be connected with low pressure oil circuit hole on the turning axle.
Be provided with water seal between said solid of rotation upper end and the turning axle; The top in this water seal cross section has " V " connected in star; The surface of contact of said water seal and turning axle is the inclined-plane; The lower end of said solid of rotation is provided with end cap, and said end cap is provided with O type circle I through being bolted to the lower end of solid of rotation between the lower end of said 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 said solid of rotation and following construction section, in the annular groove between said solid of rotation and the following construction section rotating seal ring and dust ring be housed.
The termination, upper end in said low pressure oil circuit hole is blocked with plug, and the lower end in said four working connection holes is through bolt and the sealing of O type circle II.
Compared with prior art, the beneficial effect of the utility model is:
The multichannel hydraulic gyration joint of this good sealing effect 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 and rotating part can rotate 360 ° relatively; 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 hydraulic gyration joint of this good sealing effect provides multichannel oil circuit and multiplex circuit, makes excavator, loader can carry out more complicated actions, has improved its applicability.And between the top of solid of rotation and turning axle, increased water seal, the surface of contact of this water seal and turning axle is the inclined-plane, during the downward setting-out envelope of extraneous pressure, can make to have guaranteed sealing effect by the tighter of water seal and turning axle subsides.
Description of drawings
Fig. 1 is the Facad structure schematic representation of the multichannel hydraulic gyration joint of the utility model good sealing effect.
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 sectional view of water seal among Fig. 2.
Wherein: solid of rotation 1, turning axle 2, upper pipeline linkage section 2.1, following construction section 2.2, water seal 3, inclined-plane 3.1, groove 3.2, end cap 4, O type circle I 5, back-up ring 6, circlip for shaft 7, rotating seal ring 8, dust ring 9, plug 10, bolt 11, O type circle II 12.
Embodiment
Referring to Fig. 1 to Fig. 5, the utility model relates to a kind of multichannel hydraulic gyration joint of good sealing effect, comprises solid of rotation 1 and turning axle 2; Said turning axle 2 is made up of upper pipeline linkage section 2.1 and following construction section 2.2, and said construction section 2.2 down inserts in the solid of rotation 1 from the top axial of solid of rotation 1, and the lower end of said solid of rotation 1 is lower than the horizontal position of construction section 2.2 lower ends down; Said upper pipeline linkage section 2.1 is exposed to solid of rotation 1, is provided with water seal 3 between said solid of rotation 1 upper end and the turning axle 2, and it is special-shaped that the cross section of said water seal 3 is; The top in this cross section has " V " connected in star 3.2; Said water seal 3 is inclined-plane 3.1 with the surface of contact of turning axle 2, and the extraneous downward setting-out of pressure sealed 3 o'clock, and it is tighter to make that water seal 3 and turning axle 2 paste; Guaranteed sealing effect; The lower end of said solid of rotation 1 is provided with end cap 4, and said end cap 4 is provided with O type circle I 5 through being bolted to the lower end of solid of rotation 1 between the lower end of said 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 said solid of rotation 1 and following construction section 2.2, rotating seal ring 8 and dust ring 9 are housed in the annular groove between said solid of rotation 1 and the following construction section 2.2.
Like Fig. 2; Said turning axle 2 axially offers four working connection holes and a low pressure oil circuit hole; Said four working connection holes are A hole, B hole, C hole and the D hole among Fig. 1, Fig. 2 and Fig. 3; Said low pressure oil circuit hole is the E hole among Fig. 2 and Fig. 3, and the upper end-hole in said four working connection holes is distributed on the circumferential surface of upper end of turning axle 2, and said low pressure oil circuit hole E is located between B hole and the D hole; The termination, upper end of said low pressure oil circuit hole E is blocked with plug 10, and the lower end in said four working connection holes is through bolt 11 and 12 sealings of O type circle II.
Like Fig. 1 and Fig. 2; Corresponding to four working connection holes and the low pressure oil circuit hole E on the turning axle 2; Radially have on the said 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; Said 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 said solid of rotation 1 and be connected, radially have a low pressure oil crossing E ' on the upper pipeline linkage section 2.1 of said turning axle 2 and be connected with low pressure oil circuit hole E on the turning axle 2 with low pressure oil circuit hole E on the turning axle 2.
Claims (2)
1. the multichannel hydraulic gyration joint of a good sealing effect; Comprise solid of rotation (1) and turning axle (2); It is characterized in that: said turning axle (2) is made up of upper pipeline linkage section (2.1) and following construction section (2.2); Said construction section (2.2) down inserts in the solid of rotation (1) from the top axial of solid of rotation (1); Said upper pipeline linkage section (2.1) is exposed to solid of rotation (1); Said turning axle (2) axially offers four working connection holes and a low pressure oil circuit hole, and the upper end-hole in said four working connection holes is distributed on the circumferential surface of upper end of turning axle (2), radially have on the said 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; Radially have a low pressure hydraulic fluid port on the said solid of rotation (1) and be connected, radially have a low pressure hydraulic fluid port on the upper pipeline linkage section (2.1) of said turning axle (2) and be connected with low pressure oil circuit hole on the turning axle (2) with low pressure oil circuit hole on the turning axle (2);
Be provided with water seal (3) between said solid of rotation (1) upper end and the turning axle (2); The top in this water seal (3) cross section has " V " connected in star (3.2); Said water seal (3) is inclined-plane (3.1) with the surface of contact of turning axle (2); The lower end of said solid of rotation (1) is provided with end cap (4); Said end cap (4) is through being bolted to the lower end of solid of rotation (1); Be provided with O type circle I (5) between the lower end of said 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 said solid of rotation (1) and following construction section (2.2), rotating seal ring (8) and dust ring (9) are housed in the annular groove between said solid of rotation (1) and the following construction section (2.2).
2. the multichannel hydraulic gyration joint of a kind of good sealing effect according to claim 1; It is characterized in that: the termination, upper end in said low pressure oil circuit hole is blocked with plug (10), and the lower end in said four working connection holes is through bolt (11) and O type circle II (12) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204139528U CN202302490U (en) | 2011-10-27 | 2011-10-27 | Multichannel hydraulic rotary connector with good sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204139528U CN202302490U (en) | 2011-10-27 | 2011-10-27 | Multichannel hydraulic rotary connector with good sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302490U true CN202302490U (en) | 2012-07-04 |
Family
ID=46371384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204139528U Ceased CN202302490U (en) | 2011-10-27 | 2011-10-27 | Multichannel hydraulic rotary connector with good sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302490U (en) |
-
2011
- 2011-10-27 CN CN2011204139528U patent/CN202302490U/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C32 | Full or partial invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20140411 Decision number of declaring invalidation: 22558 Granted publication date: 20120704 |