CN202302477U - Hydraulic central rotary connector - Google Patents
Hydraulic central rotary connector Download PDFInfo
- Publication number
- CN202302477U CN202302477U CN2011203990325U CN201120399032U CN202302477U CN 202302477 U CN202302477 U CN 202302477U CN 2011203990325 U CN2011203990325 U CN 2011203990325U CN 201120399032 U CN201120399032 U CN 201120399032U CN 202302477 U CN202302477 U CN 202302477U
- Authority
- CN
- China
- Prior art keywords
- rotation
- solid
- turning axle
- rotary
- working connection
- 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 - Lifetime
Links
Images
Landscapes
- Component Parts Of Construction Machinery (AREA)
Abstract
The utility model relates to a hydraulic central rotary connector. The hydraulic central rotary connector is characterized in that: the lower end of a rotary shaft (2) is axially inserted in a rotary body (1) from the upper end of the rotary body (1); the rotary shaft (2) is axially provided with seven main oil path holes and a central oil discharging hole; the rotary body (1) is radially provided with seven main oil ports for being correspondingly communicated with the seven main oil path holes on the rotary shaft (2) one by one; a dustproof ring (12) is arranged in an annular groove between the rotary body (1) and the rotary shaft (2); one side of the dustproof ring (12) contacting the rotary shaft (2) is provided with upper and lower lip ports (12.1), so that double lip ports are formed; and the upper and lower lip ports (12.1) are both clung to the outer wall of the rotary shaft (2). The hydraulic central rotary connector is capable of enabling dust to be not easily enter in and oil to be not easily leak out, and enabling a fixed part and a rotary part in a hydraulic system and a circuit to be able to relatively rotate for 360 degrees; oil paths are unblocked vertically; and operations of each oil path and the circuit are not connected in series.
Description
Technical field
The utility model relates to the central swivel coupling of a kind of hydraulic pressure; 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; Extraneous dust creeps in the swivel coupling easily; Influenced the performance of swivel coupling, and the oil in the swivel coupling spills easily also, solid of rotation in the swivel coupling and turning axle are relatively rotated also produced influence; Need often oil, increase working strength of workers.
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; Oil is difficult for spilling; 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 that each oil circuit and circuit operation are not connected.
The purpose of the utility model is achieved in that
The utility model hydraulic pressure central authorities swivel coupling; 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 back-up ring and circlip for shaft between the lower end of said solid of rotation and the lower end of turning axle; 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; Wherein the side that contacts with turning axle of dust ring is provided with two lips up and down, forms the lips mouth, should be up and down two lips all be adjacent to the outer wall of 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.
Be provided with the water seal circle between said solid of rotation upper end and the turning axle.
Compared with prior art, the beneficial effect of the utility model is:
This hydraulic pressure 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 this hydraulic pressure 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 dust ring is made lips degree of lip-rounding formula; The one side that this dust ring contacts with turning axle is provided with two lips up and down, and the top and the turning axle of two lips fit tightly up and down, makes extraneous dust be 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 working strength of workers.
Description of drawings
Fig. 1 is the Facad structure schematic representation of the utility model hydraulic pressure central authorities swivel coupling.
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 dust ring among Fig. 2.
Wherein: solid of rotation 1, turning axle 2, water seal circle 3, 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, lip 12.1, awl are stifled 13, plug 14, O type circle III 15.
Embodiment
Referring to Fig. 1 to Fig. 5; The utility model relates to the central swivel coupling of a kind of hydraulic pressure, comprises solid of rotation 1 and turning axle 2, and 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; Be provided with water seal circle 3 between said solid of rotation 1 upper end and the turning axle 2, said water seal circle 3 is used to prevent gas leak or entering, 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, is provided with O type circle I 7 between the lower end of said solid of rotation 1 and the end cap 4, 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; 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; Wherein the side that contacts with turning axle 2 of this dust ring 12 is provided with two lips 12.1 up and down, forms the lips mouth, should be up and down two lips 12.1 all be adjacent to the outer wall of turning axle 2.Make extraneous dust be difficult for creeping in the swivel coupling, and oil can not spill internally, thereby guarantee the performance of swivel coupling, need not often to oil, reduce working strength of workers.
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 (4)
1. hydraulic pressure 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, and the center of turning axle (2), the periphery in said seven working connection pore size distribution draining holes in the center are located in draining hole, said 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 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), wherein the side that contacts with turning axle (2) of dust ring (12) is provided with two lips (12.1) up and down; Form the lips mouth, two lips (12.1) all are adjacent to the outer wall of turning axle (2) up and down.
2. the central swivel coupling of a kind of hydraulic pressure according to claim 1, 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 stifled (13).
3. the central swivel coupling of a kind of hydraulic pressure according to claim 2; 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).
4. the central swivel coupling of a kind of hydraulic pressure according to claim 2 is characterized in that: be provided with water seal circle (3) between said solid of rotation (1) upper end and the turning axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203990325U CN202302477U (en) | 2011-10-19 | 2011-10-19 | Hydraulic central rotary connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203990325U CN202302477U (en) | 2011-10-19 | 2011-10-19 | Hydraulic central rotary connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302477U true CN202302477U (en) | 2012-07-04 |
Family
ID=46371371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203990325U Expired - Lifetime CN202302477U (en) | 2011-10-19 | 2011-10-19 | Hydraulic central rotary connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302477U (en) |
-
2011
- 2011-10-19 CN CN2011203990325U patent/CN202302477U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103062553A (en) | Hydraulic rotary joint | |
| CN103061376A (en) | Hydraulic center rotary joint | |
| CN102691838A (en) | Hydraulic central swivel joint | |
| CN202302487U (en) | Large-rotation-angle rotary connector with electric brush | |
| CN202302477U (en) | Hydraulic central rotary connector | |
| CN202302480U (en) | Multi-channel hydraulic gyrating joint | |
| CN202302491U (en) | Hydraulic central swivel joint with good seal effect | |
| CN202302479U (en) | Seven-channel hydraulic rotating joint | |
| CN202302492U (en) | Gyrating joint with big gyration angle and good sealing effect | |
| CN201992243U (en) | Multi-channel hydraulic swivel joint | |
| CN202302482U (en) | Multi-channel swivel joint capable of effectively keeping pressure | |
| CN202302478U (en) | Rotary connector with large rotary angle | |
| CN202302493U (en) | Hydraulic rotary joint with good sealing effect | |
| CN202082531U (en) | Hydraulic rotary joint | |
| CN202302474U (en) | Swivel joint | |
| CN202302483U (en) | Rotating joint capable of effectively maintaining pressure | |
| CN202302476U (en) | Hydraulic revolving joint with electric brush | |
| CN202302494U (en) | Hydraulic rotating connector | |
| CN202302490U (en) | Multichannel hydraulic rotary connector with good sealing effect | |
| CN103062557A (en) | Seven-channel hydraulic swivel joint capable of maintaining pressure effectively | |
| CN202065573U (en) | Hydraulic central swivel joint | |
| CN202082524U (en) | Rotating connector | |
| CN202302486U (en) | Seven-channel hydraulic rotating connector with electric brush | |
| CN103061375A (en) | Hydraulic slewing connector with large slewing angle | |
| CN202302489U (en) | Multichannel hydraulic rotating connector with electric brush |
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 | ||
| 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. |
|
| CP02 | Change in the address 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 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |