CN202302491U - Hydraulic central swivel joint with good seal effect - Google Patents
Hydraulic central swivel joint with good seal effect Download PDFInfo
- Publication number
- CN202302491U CN202302491U CN2011204139551U CN201120413955U CN202302491U CN 202302491 U CN202302491 U CN 202302491U CN 2011204139551 U CN2011204139551 U CN 2011204139551U CN 201120413955 U CN201120413955 U CN 201120413955U CN 202302491 U CN202302491 U CN 202302491U
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- China
- Prior art keywords
- rotation
- solid
- turning axle
- swivel
- water seal
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- 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 - Lifetime
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Abstract
The utility model relates to a hydraulic central swivel joint with a good seal effect. The hydraulic central swivel joint is characterized in that the lower end of a swivel shaft (2) is axially inserted into a swivel body (1) from the upper end of the swivel body (1); seven main oil way holes and a central oil leakage hole are formed on the swivel shaft (2) in the axial direction; seven main oil ports are formed on the swivel body (1) in the radial direction and are in one-to-one correspondence with the seven main oil way holes on the swivel shaft (2); a water seal (3) is arranged between the upper end of the swivel body (1) and the swivel shaft (2); a V-shaped groove (3.2) is formed at the top of the section of the water seal (3); and the contact surface of the water seal (3) with the swivel shaft (2) is an inclined plane (3.1). According to the utility model, dust hardly enters the hydraulic central swivel joint with the good seal effect, fixed parts and rotation parts in a hydraulic system and a circuit can relatively rotate for 360 degrees, oil ways are smooth up and down, and various oil way and circuit actions are not connected in series.
Description
Technical field
The utility model relates to a kind of hydraulic pressure central authorities swivel coupling 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.Hydraulic pressure central authorities 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.
Yet 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.
And after hydraulic pressure in the past central authorities swivel coupling 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.
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 hydraulic pressure central authorities swivel coupling 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 hydraulic pressure central authorities swivel coupling of the utility model good sealing effect; Comprise solid of rotation and turning axle; Insert in the solid of rotation from the top axial of solid of rotation the lower end of said turning axle, and the upper end of turning axle is exposed to solid of rotation, and said turning axle axially offers seven working connection holes and draining hole, a center; The center of turning axle is located in draining hole, said center; The periphery in said seven working connection pore size distribution draining holes in the center, radially have on the said solid of rotation seven main hydraulic fluid ports with turning axle on corresponding one by one being connected of seven working connection holes, 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, is provided with back-up ring and circlip for shaft between the lower end of said solid of rotation and the lower end of turning axle, and rotating seal ring, O type circle II, dust ring and O type circle III are housed in the annular groove between said solid of rotation and the turning axle.
The termination, upper end in said seven working connection holes is blocked with plug, and it is stifled that the lower end in said seven working connection holes is provided with awl.
The lower end of said solid of rotation is provided with end cap, and said end cap is fixed on the lower end of solid of rotation through bolt and plain washer, is provided with O type circle I between the lower end of said solid of rotation and the end cap.
Compared with prior art, the beneficial effect of the utility model is:
The hydraulic pressure of this good sealing effect central authorities swivel coupling 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 hydraulic pressure of this good sealing effect central authorities swivel coupling 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 hydraulic pressure central authorities swivel coupling 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, water seal 3, inclined-plane 3.1, groove 3.2, end cap 4, bolt 5, plain washer 6, O type circle I 7, back-up ring 8, circlip for shaft 9, rotating seal ring 10, O type circle II 11, dust ring 12, awl are stifled 13, plug 14, O type circle III 15.
Embodiment
Referring to Fig. 1 to Fig. 5, the utility model relates to a kind of hydraulic pressure central authorities swivel coupling of good sealing effect, comprises solid of rotation 1 and turning axle 2; Insert in the solid of rotation 1 from the top axial of solid of rotation 1 lower end of said turning axle 2, and the upper end of turning axle 2 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; 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, and 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; It is tighter to make that water seal 3 and turning axle 2 paste; Guaranteed sealing effect, the lower end horizontal alignment of the lower end of said turning axle 2 and solid of rotation 1, the lower end of said solid of rotation 1 is provided with end cap 4; Said end cap 4 is fixed on the lower end of solid of rotation 1 through bolt 5 and plain washer 6; Be provided with O type circle I 7 between the lower end of said solid of rotation 1 and the end cap 4, be provided with back-up ring 8 and circlip for shaft 9 between the lower end of the lower end of said solid of rotation 1 and turning axle 2, rotating seal ring 10, O type circle II 11, dust ring 12 and O type circle III 15 are housed in the annular groove between said solid of rotation 1 and the turning axle 2.
Like Fig. 2; Said turning axle 2 axially offers seven working connection holes and draining hole, a center; Said seven working connection holes are A hole, B hole, C hole, D hole, E hole, F hole and the G hole among Fig. 1, Fig. 2 and Fig. 3, and draining hole, said center is the H hole among Fig. 2 and Fig. 3, and said center draining hole H is located at the center of turning axle 2; The periphery of said seven working connection pore size distributions draining hole H in the center; The termination, upper end in said seven working connection holes is blocked with plug 14, and it is stifled 13 that the lower end in said seven working connection holes is provided with awl, and said awl stifled 13 is blocked the lower end in seven working connection holes.
Like Fig. 1 and Fig. 2; Corresponding to seven working connection holes on the turning axle 2 and draining hole, a center; Radially have on the said solid of rotation 1 seven main hydraulic fluid ports with turning axle 2 on corresponding one by one being connected of seven working connection holes, said seven main hydraulic fluid ports are A mouth, B mouth, C mouth, D mouth, E mouth, F mouth and G mouth.
Claims (3)
1. the hydraulic pressure of good sealing effect central authorities swivel coupling; Comprise solid of rotation (1) and turning axle (2); It is characterized in that: insert in the solid of rotation (1) from the top axial of solid of rotation (1) lower end of said turning axle (2); And the upper end of turning axle (2) is exposed to solid of rotation (1); Said turning axle (2) axially offers seven working connection holes and draining hole, a center; The center of turning axle (2) is located in draining hole, said center; The periphery in said seven working connection pore size distribution draining holes in the center, radially have on the said solid of rotation (1) seven main hydraulic fluid ports with turning axle (2) on corresponding one by one being connected of seven working connection holes, 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), is provided with back-up ring (8) and circlip for shaft (9) between the lower end of the lower end of said solid of rotation (1) and turning axle (2), and rotating seal ring (10), O type circle II (11), dust ring (12) and O type circle III (15) are housed in the annular groove between said solid of rotation (1) and the turning axle (2).
2. the hydraulic pressure of a kind of good sealing effect according to claim 1 central authorities swivel coupling, it is characterized in that: the termination, upper end in said seven working connection holes is blocked with plug (14), and the lower end in said seven working connection holes is provided with awl and blocks up (13).
3. the hydraulic pressure of a kind of good sealing effect according to claim 2 central authorities swivel coupling; It is characterized in that: the lower end of said solid of rotation (1) is provided with end cap (4); Said end cap (4) is fixed on the lower end of solid of rotation (1) through bolt (5) and plain washer (6), is provided with O type circle I (7) between the lower end of said solid of rotation (1) and the end cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204139551U CN202302491U (en) | 2011-10-27 | 2011-10-27 | Hydraulic central swivel joint with good seal effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204139551U CN202302491U (en) | 2011-10-27 | 2011-10-27 | Hydraulic central swivel joint with good seal effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302491U true CN202302491U (en) | 2012-07-04 |
Family
ID=46371385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204139551U Expired - Lifetime CN202302491U (en) | 2011-10-27 | 2011-10-27 | Hydraulic central swivel joint with good seal effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195501A (en) * | 2016-07-11 | 2016-12-07 | 润琛液压机械南通有限公司 | A kind of big flow Multichannel swivel joint |
-
2011
- 2011-10-27 CN CN2011204139551U patent/CN202302491U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195501A (en) * | 2016-07-11 | 2016-12-07 | 润琛液压机械南通有限公司 | A kind of big flow Multichannel swivel joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214422 Wuxi, Jiangyin, Jiangsu Province Yun Ting Street industrial concentration area 1 Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 Wuxi, Jiangyin, Jiangsu Province Yun Ting Street industrial concentration area 1 Patentee before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 Wuxi, Jiangyin, Jiangsu Province Yun Ting Street industrial concentration area 1 Patentee before: Jiangsu Changling hydraulic Limited by Share Ltd |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |