CN202791073U - Leak-proof hydraulic rotating joint - Google Patents
Leak-proof hydraulic rotating joint Download PDFInfo
- Publication number
- CN202791073U CN202791073U CN 201220515843 CN201220515843U CN202791073U CN 202791073 U CN202791073 U CN 202791073U CN 201220515843 CN201220515843 CN 201220515843 CN 201220515843 U CN201220515843 U CN 201220515843U CN 202791073 U CN202791073 U CN 202791073U
- Authority
- CN
- China
- Prior art keywords
- draining
- annular
- cylinder sleeve
- hollow core
- core shaft
- 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 - Fee Related
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Abstract
The utility model relates to a leak-proof hydraulic rotating joint. A hollow mandrel is positioned in a cylinder sleeve and can rotate relative to the cylinder sleeve, an annular groove is arranged on the outer side of the hollow mandrel, an annular groove is arranged on the inner side of the cylinder sleeve correspondingly, and the annular groove of the hollow mandrel and the annular groove of the cylinder sleeve form an annular channel. The rotating joint is characterized in that a first annular oil drain channel, an annular high pressure oil channel and a second annular oil drain channel are arranged sequentially from top to bottom; the hollow mandrel is provided with an oil drain and inlet duct communicated with the second annular oil drain channel; and an oil drain branch pipe and an oil drain main pipe which are mutually communicated, the oil drain and outlet main pipe is communicated with the second annular oil drain channel, and the oil drain and outlet branch pipe is communicated with the first annular oil drain channel.
Description
Technical field
The utility model relates to hydraulic equipment, especially a kind of hydraulic rotary joint of anti-leak.
Background technique
Hydraulic rotary joint is the equipment for the hydraulic actuator delivery hydraulic pressure medium on rotating equipment.The leakage of hydraulic medium can occur in existing hydraulic rotary joint in the process of using, cause the adverse consequencess such as waste, environmental pollution and hydraulic actuator Efficiency Decreasing.
The model utility content
Goal of the invention of the present utility model is to provide a kind of hydraulic rotary joint of anti-leak, can effectively solve the hydraulic medium problem that leaks.
Realize the technological scheme of the present utility model purpose:
A kind of hydraulic rotary joint of anti-leak, hollow core shaft is positioned at cylinder sleeve, hollow core shaft can be rotated relative to cylinder sleeve, the outside of hollow core shaft is provided with annular groove, the inboard corresponding annular groove that is provided with of cylinder sleeve, the annular groove of hollow core shaft and the annular groove of cylinder sleeve form the annular pass, it is characterized in that: be provided with successively draining the first annular pass, high pressure oil annular pass and draining the second annular pass from top to bottom; Hollow core shaft is provided with draining oil-feed oil duct, and draining oil-feed oil duct is connected with draining the second annular pass; The cylinder sleeve outside also is provided with draining arm and the draining main that is interconnected, and the fuel-displaced main of draining is connected with draining the second annular pass, and draining goes out oil inlet pipe and draining the first annular pass and is connected.
Hollow core shaft is provided with the through hole that can be used for installing drilling rod, and the hollow core shaft bottom is provided with for the fixing jackscrew of drilling rod.
Be provided with abrasive resistance sealing parts between each annular pass.
Be provided with in the both sides of cylinder sleeve for the fixing support arm of cylinder sleeve.
The beneficial effect that the utlity model has:
The utility model can make the hydraulic medium that oozes out finally flow back to fuel tank through the draining main in the upper and lower draining annular pass that is equipped with of high pressure oil annular pass, prevents that hydraulic medium from leaking.Be provided with abrasive resistance sealing parts between each annular pass, can further strengthen sealing effect.The utility model is particularly useful for the hydraulic pressure trepan, and swivel joint can be fixed with the drilling rod of hydraulic pressure trepan.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
Embodiment
As shown in the figure, hollow core shaft 1 is installed in the cylinder sleeve 2 by bearing 6, hollow core shaft 1 can be rotated relative to cylinder sleeve 2, the outside of hollow core shaft 1 is provided with annular groove, the inboard corresponding annular groove that is provided with of cylinder sleeve, the annular groove of hollow core shaft and the annular groove of cylinder sleeve form the annular pass, and high pressure oil annular pass 9 goes out pipe 13 with high pressure oil inlet pipe 4 and high pressure oil and is communicated with, and this is prior art.
Be provided with successively draining the first annular pass 14, high pressure oil annular pass 9 and draining the second annular pass 8 from top to bottom; Hollow core shaft is provided with draining oil-feed oil duct 11, and draining oil-feed oil duct 11 is connected with draining the second annular pass 8; The cylinder sleeve outside also is provided with draining arm 15 and the draining main 7 that is interconnected, and the fuel-displaced main 7 of draining is connected with draining the second annular pass 8, and draining goes out oil inlet pipe 15 and draining the first annular pass 14 and is connected.Hollow core shaft is provided with the through hole that can be used for installing drilling rod, and the hollow core shaft bottom is provided with for the fixing jackscrew 10 of drilling rod, and mandrel and drilling rod 12 is fixing.Be provided with abrasive resistance sealing parts 3 between each annular pass, be provided with in the both sides of cylinder sleeve for the fixing support arm 5 of cylinder sleeve.
During work, high pressure oil enters swivel joint by high pressure oil inlet pipe 4, go out pipe 13 by high pressure oil and be delivered to hydraulic actuator (such as the slurry pump of hydraulic pressure trepan), the draining of hydraulic actuator enters swivel joint by draining oil-feed oil duct 11, flows back to fuel tank by draining main 7.The high pressure oil that oozes out in the swivel joint can flow back to fuel tank through draining the first annular pass 14, draining arm 15, draining main 7, can also flow back to fuel tank through draining the second annular pass 8, draining main 7, prevents that effectively hydraulic medium from leaking.
Claims (4)
1. the hydraulic rotary joint of an anti-leak, hollow core shaft is positioned at cylinder sleeve, hollow core shaft can be rotated relative to cylinder sleeve, the outside of hollow core shaft is provided with annular groove, the inboard corresponding annular groove that is provided with of cylinder sleeve, the annular groove of hollow core shaft and the annular groove of cylinder sleeve form the annular pass, it is characterized in that: be provided with successively draining the first annular pass, high pressure oil annular pass and draining the second annular pass from top to bottom; Hollow core shaft is provided with draining oil-feed oil duct, and draining oil-feed oil duct is connected with draining the second annular pass; The cylinder sleeve outside also is provided with draining arm and the draining main that is interconnected, and the fuel-displaced main of draining is connected with draining the second annular pass, and draining goes out oil inlet pipe and draining the first annular pass and is connected.
2. the hydraulic rotary joint of anti-leak according to claim 1, it is characterized in that: hollow core shaft is provided with the through hole that can be used for installing drilling rod, and the hollow core shaft bottom is provided with for the fixing jackscrew of drilling rod.
3. the hydraulic rotary joint of anti-leak according to claim 2 is characterized in that: be provided with abrasive resistance sealing parts between each annular pass.
4. the hydraulic rotary joint of anti-leak according to claim 3 is characterized in that: be provided with in the both sides of cylinder sleeve for the fixing support arm of cylinder sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515843 CN202791073U (en) | 2012-09-14 | 2012-09-14 | Leak-proof hydraulic rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515843 CN202791073U (en) | 2012-09-14 | 2012-09-14 | Leak-proof hydraulic rotating joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202791073U true CN202791073U (en) | 2013-03-13 |
Family
ID=47818336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220515843 Expired - Fee Related CN202791073U (en) | 2012-09-14 | 2012-09-14 | Leak-proof hydraulic rotating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202791073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320974A (en) * | 2015-07-02 | 2017-01-11 | 襄阳畅勘智能机械有限公司 | Downhole breaking rock-entering drill of hydraulic slewing drilling machine |
| CN107684985A (en) * | 2016-08-05 | 2018-02-13 | 塞弗拉合作社 | Swivel joint and the spraying robot including swivel joint |
-
2012
- 2012-09-14 CN CN 201220515843 patent/CN202791073U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320974A (en) * | 2015-07-02 | 2017-01-11 | 襄阳畅勘智能机械有限公司 | Downhole breaking rock-entering drill of hydraulic slewing drilling machine |
| CN107684985A (en) * | 2016-08-05 | 2018-02-13 | 塞弗拉合作社 | Swivel joint and the spraying robot including swivel joint |
| US10486175B2 (en) | 2016-08-05 | 2019-11-26 | Cefla Societa' Cooperativa | Rotating joint and painting machine |
| CN107684985B (en) * | 2016-08-05 | 2020-07-07 | 塞弗拉合作社 | Swivel joint, spraying method and spraying machine comprising swivel joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |