CN202298736U - Seven-channel hydraulic rotary joint with good sealing effect - Google Patents
Seven-channel hydraulic rotary joint with good sealing effect Download PDFInfo
- Publication number
- CN202298736U CN202298736U CN2011204139509U CN201120413950U CN202298736U CN 202298736 U CN202298736 U CN 202298736U CN 2011204139509 U CN2011204139509 U CN 2011204139509U CN 201120413950 U CN201120413950 U CN 201120413950U CN 202298736 U CN202298736 U CN 202298736U
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- gyroaxis
- revolving body
- water seal
- connection holes
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Abstract
The utility model relates to a seven-channel hydraulic rotary joint with a good sealing effect. The seven-channel hydraulic rotary joint comprises a rotary body (1) and a rotary shaft (2), and is characterized in that the rotary shaft (2) comprises an upper pipeline connecting section (2.1) and a lower mounting section (2.2), seven main oil passage holes are axially formed on the rotary shaft (2), openings at the upper ends of the seven main oil passage holes are distributed on the circumference at the upper end of the rotary shaft (2), a rotating seal ring (5) and a water seal (6) are arranged in an annular groove between the rotary body (1) and the lower mounting section (2.2), a V-shaped groove (6.2) is formed at the top of the section of the water seal (6), and the surface of the water seal (6), which is in contact with the rotary shaft (2), is an inclined plane (6.1). Dust is difficult to enter the seven-channel hydraulic rotary joint with the good sealing effect, the rotary angle is larger, interference between the pipelines can be avoided, and the seven-channel hydraulic rotary joint is also very convenient to operate and maintain.
Description
Technical field
The utility model relates to a kind of seven passage hydraulic gyration joints of good sealing effect; Be mainly used in the hydraulic system of machineries such as large-tonnage excavator, crane, land leveller, tower crane; Be to connect standing part and the fluid pressure line of rotating part and the connector of circuit in whole hydraulic system and the circuit, belong to technical field of engineering machinery.
Background technology
Hydraulic crawler excavator, loop wheel machine, loader etc., two parts are need 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 made up of revolving body, gyroaxis and lid etc.During use, the revolution lower platform of revolving body and hydraulic crawler excavator, crane machinery is fixed, and the installing plate on the gyroaxis 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 revolving body and gyroaxis, and the upper mounting plate of hydraulic machinery then drives the gyroaxis rotation.
After yet swivel coupling in the past connects the fluid pressure line and circuit of standing part and rotating part in hydraulic system and the circuit; 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 sealing performance, 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, provides a kind of dust be difficult for to get into, and the angle of revolution is bigger, can not interfere between the pipeline, and Operation and maintenance seven passage hydraulic gyration joints of good sealing effect easily.
The purpose of the utility model is achieved in that
Seven passage hydraulic gyration joints of the utility model good sealing effect; Comprise revolving body and gyroaxis; Said gyroaxis is made up of upper pipeline linkage section and following construction section, and said construction section down inserts in the revolving body from the top axial of revolving body, and said upper pipeline linkage section is exposed to revolving body; Be provided with back-up ring and circlip for shaft between the lower end of the lower end of said revolving body and following construction section; In the annular groove between said revolving body and the following construction section rotating seal ring and water seal are housed, in the annular groove between said revolving body and the following construction section rotating seal ring and water seal are housed, the top in this water seal cross section has " V " connected in star; The contact surface of said water seal and gyroaxis is the inclined-plane; Said gyroaxis axially offers seven working connection holes, and the open upper end in said seven working connection holes is distributed on the upper end periphery of gyroaxis, and the bottom in said seven working connection holes is plugged with steel ball; The lower end port in said seven working connection holes is provided with screw plug, radially have on the said revolving body seven main hydraulic fluid ports with gyroaxis on corresponding one by one being connected of seven working connection holes.
Compared with prior art, the beneficial effect of the utility model is:
Seven passage hydraulic gyration joints of this good sealing effect can connect the fluid pressure 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; Operation and maintenance are inconvenient; Just can not interfere between the pipeline, make that the pipeline life-span is longer.And this swivel coupling provides multichannel oil circuit and multiplex circuit; Make excavator, loader can carry out much more complicated actions, improved its applicability, and between the top of revolving body and gyroaxis, increased water seal; The contact surface of this water seal and gyroaxis is the inclined-plane; When the downward setting-out of extraneous pressure sealed, it was tighter to make that water seal and gyroaxis paste, and has guaranteed sealing effectiveness.
Description of drawings
Fig. 1 is the Facad structure sketch map of seven passage hydraulic gyration joints of the utility model good sealing effect.
Fig. 2 is the I-I sectional view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the sectional view of water seal among Fig. 2.
Wherein: revolving body 1, gyroaxis 2, upper pipeline linkage section 2.1, following construction section 2.2, back-up ring 3, circlip for shaft 4, rotating seal ring 5, water seal 6, inclined-plane 6.1, groove 6.2, steel ball 7, screw plug 8.
The specific embodiment
Referring to Fig. 1 to Fig. 4, the utility model relates to a kind of seven passage hydraulic gyration joints of good sealing effect, comprises revolving body 1 and gyroaxis 2; Said gyroaxis 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 revolving body 1 from the top axial of revolving body 1, and said upper pipeline linkage section 2.1 is exposed to revolving body 1; Be provided with back-up ring 3 and circlip for shaft 4 between the lower end of the lower end of said revolving body 1 and following construction section 2.2; Rotating seal ring 5 and water seal 6 are housed in the annular groove between said revolving body 1 and the following construction section 2.2, and it is special-shaped that the cross section of said water seal 6 is, and the top in this cross section has " V " connected in star 6.2; Said water seal 6 is inclined-plane 6.1 with the contact surface of gyroaxis 2; The extraneous downward setting-out of pressure sealed 6 o'clock, and it is tighter to make that water seal 6 and gyroaxis 2 paste, and has guaranteed sealing effectiveness.
Like Fig. 2; Said gyroaxis 2 axially offers seven working connection holes; 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; The open upper end in said seven working connection holes is distributed on the upper end periphery of gyroaxis 2, and the bottom in said seven working connection holes is plugged with steel ball 7, and the lower end port in said seven working connection holes is blocked with screw plug 8.
Like Fig. 1 and Fig. 2; Corresponding to seven working connection holes on the gyroaxis 2; Radially have on the said revolving body 1 seven main hydraulic fluid ports with gyroaxis 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 (1)
1. seven passage hydraulic gyration joints of a good sealing effect; Comprise revolving body (1) and gyroaxis (2); It is characterized in that: said gyroaxis (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 revolving body (1) from the top axial of revolving body (1); Said upper pipeline linkage section (2.1) is exposed to revolving body (1); Be provided with back-up ring (3) and circlip for shaft (4) between the lower end of the lower end of said revolving body (1) and following construction section (2.2), rotating seal ring (5) and water seal (6) are housed in the annular groove between said revolving body (1) and the following construction section (2.2), the top in this water seal (6) cross section has " V " connected in star (6.2); Said water seal (6) is inclined-plane (6.1) with the contact surface of gyroaxis (2); Said gyroaxis (2) axially offers seven working connection holes, and the open upper end in said seven working connection holes is distributed on the upper end periphery of gyroaxis (2), and the bottom in said seven working connection holes is plugged with steel ball (7); The lower end port in said seven working connection holes is provided with screw plug (8), radially have on the said revolving body (1) seven main hydraulic fluid ports with gyroaxis (2) on corresponding one by one being connected of seven working connection holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204139509U CN202298736U (en) | 2011-10-27 | 2011-10-27 | Seven-channel hydraulic rotary joint with good sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204139509U CN202298736U (en) | 2011-10-27 | 2011-10-27 | Seven-channel hydraulic rotary joint with good sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202298736U true CN202298736U (en) | 2012-07-04 |
Family
ID=46367665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204139509U Expired - Lifetime CN202298736U (en) | 2011-10-27 | 2011-10-27 | Seven-channel hydraulic rotary joint with good sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202298736U (en) |
-
2011
- 2011-10-27 CN CN2011204139509U patent/CN202298736U/en not_active Expired - Lifetime
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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 | ||
| 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 |