CN202469326U - Hydraulic/pneumatic central rotary joint - Google Patents
Hydraulic/pneumatic central rotary joint Download PDFInfo
- Publication number
- CN202469326U CN202469326U CN2012200462613U CN201220046261U CN202469326U CN 202469326 U CN202469326 U CN 202469326U CN 2012200462613 U CN2012200462613 U CN 2012200462613U CN 201220046261 U CN201220046261 U CN 201220046261U CN 202469326 U CN202469326 U CN 202469326U
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- oilhole
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- mandrel
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Abstract
The utility model discloses a hydraulic/pneumatic central rotary joint and belongs to a rotary joint applicable to engineering machinery. The hydraulic/pneumatic central rotary joint consists of an oil channel part, a gas channel part and a conductive ring port, wherein the oil channel part and the gas channel part are isolated from each other through two low-pressure oil leakage tanks; threaded oil ports are respectively formed on the bottom surface of a core shaft and the side face of a cylinder of the rotary joint and connected with the oil channel part and the gas channel part; and the conductive ring port is formed at the upper end of the rotary joint and directly connected with conductive rings. The hydraulic/pneumatic central rotary joint can continuously transmit two media such as hydraulic oil and gas between two mechanisms which rotate relatively. The rotary joint is divided into the oil channel part and the gas channel part through the oil leakage tanks and consists of the core shaft and the cylinder, the conductive ring port is reserved on the rotary joint, and random channels of conductive rings can be installed. The utility model has the advantages that 1, the hydraulic/pneumatic central rotary joint can accord with special work conditions of simultaneous transmission of the hydraulic oil and the gas; and 2, the hydraulic/pneumatic central rotary joint is high in expandability, and random channels of conductive rings can be installed.
Description
Technical field
The utility model relates to the swivel joint that uses in a kind of engineering machinery, the dual-purpose centre revolving joint of particularly a kind of liquid gas.
Technical background
In engineering machinery, swivel joint is used for being communicated with the hydraulic circuit that has between the getting on the bus and get off of relative rotary motion.Common swivel joint generally is made up of mandrel and cylindrical shell, and cylindrical shell is a tubular structure, and cylindrical shell can rotate around mandrel.This rotary joint structure is simple relatively, only is used for the transmission of liquid.
In engineering machinery, there are two counterrotating mechanisms; And when all having oil hydraulic circuit and gas return path in two mechanisms, common swivel joint can not satisfy the demands, and common swivel joint is to transmit hydraulic oil and gas circuit two media simultaneously; Mainly be because the working pressure of hydraulic oil is higher than gas circuit pressure far away; And there is certain leakage in swivel joint itself, has the hydraulic oil of necessarily being pressed to leak in the gas circuit, damages the gas circuit element easily.
The model utility content
The purpose of the utility model is to provide a kind of liquid gas dual-purpose swivel joint, solves the problem that swivel joint can only transmit a kind of liquid medium.
The purpose of the utility model is achieved in that this swivel joint is made up of oil circuit part, air path part and conductive hoop interface, and oil circuit part and air path part are isolated through two low pressure drain pans; Mandrel bottom surface and cylindrical shell side at swivel joint are equipped with the screw thread hydraulic fluid port, are connected with gas circuit with oil circuit; There is the conductive hoop interface swivel joint upper end, directly is connected with conductive hoop;
This swivel joint comprises: cylindrical shell, mandrel, mandrel wear-resistant pad, pressing plate wear-resistant pad, pressing plate, connecting plate and block; Mandrel is positioned at cylindrical shell, and a round platform is arranged at the mandrel bottom, and cylindrical shell is positioned on the round platform, between mandrel round platform and cylindrical shell, is connected with the mandrel wear-resistant pad; On mandrel, be connected with pressing plate, the pressing plate wear-resistant pad is arranged between pressing plate and mandrel, have connecting plate to be connected on the cylindrical shell in the pressing plate upper end; Side at cylindrical shell is connected with block; In the bottom of mandrel a plurality of axial bores are arranged, a plurality of radial holes are arranged on the sidewall of mandrel, there is a groove at each radial hole place, an axial bore and corresponding communicating of radial hole; A plurality of holes are arranged, corresponding the communicating of groove of the radial hole on the hole on the described cylinder lateral wall and the mandrel on cylinder lateral wall.
The axial bore of described mandrel bottom has: first cross pore, the second horizontal oilhole, the 3rd horizontal oilhole, the 4th horizontal oilhole, the 5th horizontal oilhole, the 6th horizontal oilhole, the 7th horizontal oilhole, the 8th horizontal oilhole, the 9th horizontal oilhole, the tenth horizontal oilhole, the 11 horizontal oilhole, the 12 horizontal oilhole;
Hole on the described cylinder lateral wall has: the first vertical pore, the second vertical oilhole, the 3rd vertical oilhole, the 4th vertical oilhole, the 5th vertical oilhole, the 6th vertical oilhole, the 7th vertical oilhole, the 8th oilhole, the 9th vertical oilhole, the tenth vertical oilhole, the 11 vertical oilhole, the 12 vertical oilhole;
Described groove has: first groove, last low pressure drain pan, three-flute, the 4th groove, the 5th groove, the 6th groove, the 7th groove, the 8th groove, the 9th groove, the tenth groove, the 11 groove, the 12 groove, the tenth three-flute and following low pressure drain pan;
The top of swivel joint is connected with conductive hoop through connecting plate; First cross pore of swivel joint cylindrical shell side, the second horizontal oilhole, the 3rd horizontal oilhole, the 4th horizontal oilhole, the 5th horizontal oilhole, the 6th horizontal oilhole, the 7th horizontal oilhole, the 8th horizontal oilhole, the 9th horizontal oilhole, the tenth horizontal oilhole, the first horizontal oilhole, the 12 horizontal oilhole respectively through first groove on the mandrel, go up low pressure drain pan, three-flute, the 4th groove, the 5th groove, the 6th groove, the 7th groove, the 8th groove, the 9th groove, the tenth groove, the 11 groove, the 12 groove and communicate with the first vertical pore, the second vertical oilhole, the 3rd vertical oilhole, the 4th vertical oilhole, the second vertical oilhole, the 6th vertical oilhole, the 7th vertical oilhole, the 8th vertical oilhole, the 9th vertical oilhole, the tenth vertical oilhole, the 11 vertical oilhole, the 12 vertical oilhole of mandrel bottom surface, following low pressure drain pan, the tenth three-flute and the 13 are indulged oilhole and are communicated.
Beneficial effect; Owing to adopted such scheme; In order to realize transmitting simultaneously the function of hydraulic oil and gas; Different operating characteristic to hydraulic oil and gas has adopted isolated design in the utility model, promptly through last low pressure drain pan and following low pressure drain pan whole swivel joint is isolated into oil circuit and two parts of gas circuit.Mandrel bottom surface and cylindrical shell side at swivel joint are equipped with the screw thread hydraulic fluid port, are used to connect hydraulic pressure and gas circuit pipeline.Working pressure to hydraulic oil and gas circuit is different; This swivel joint is provided with twice low pressure drain pan between the circular groove of oil circuit and gas circuit; Near be used to the to get on the bus leakage of hydraulic element of the last low pressure drain pan of oil circuit, be used for the internal leakage of swivel joint near the following low pressure drain pan of gas circuit.High-pressure oil passage and low pressure gas circuit have been isolated completely through this twice low pressure drain pan.The seal element that swivel joint has used the hydraulic oil medium to use through rational Spielpassung, has guaranteed that hydraulic circuit leakage rate when work is very low.Leak the hole direct oil sump tank of oil, guaranteed the normal operation of gas circuit through the mandrel bottom.In order to take into account the demand on electric, leave the conductive hoop interface on the swivel joint, the conductive hoop of any way can be installed.Solve the problem that swivel joint can only transmit a kind of liquid medium, reached the purpose of the utility model.
Advantage: 1. can satisfy the special operation condition that transmits hydraulic oil and gas circuit simultaneously; 2. extensibility is strong, and the conductive hoop of any way can be installed.
Description of drawings
Fig. 1 is the structural drawing of the utility model.
Fig. 2 is the barrel hole structure figure of the utility model.
Fig. 3 is the mandrel bottom hole structural drawing of the utility model.
Among the figure, 1, cylindrical shell; 2, mandrel; 3, mandrel wear-resistant pad; 4, pressing plate wear-resistant pad; 5, pressing plate; 6, connecting plate; 7, the block on the cylinder assembly; 1-1, first cross pore; 1-2, the second horizontal oilhole; 1-3, the 3rd horizontal oilhole; 1-4, the 4th horizontal oilhole; 1-5, the 5th horizontal oilhole; 1-6, the 6th horizontal oilhole; 1-7, the 7th horizontal oilhole; 1-8, the 8th horizontal oilhole; 1-9, the 9th horizontal oilhole; 1-10, the tenth horizontal oilhole; 1-11, the 11 horizontal oilhole; 1-12, the 12 horizontal oilhole; 2-1, the first vertical pore; 2-2, the second vertical oilhole; 2-3, the 3rd vertical oilhole; 2-4, the 4th vertical oilhole; 2-5, the 5th vertical oilhole; 2-6, the 6th vertical oilhole; 2-7, the 7th vertical oilhole; 2-8, the 8th vertical oilhole; 2-9, the 9th vertical oilhole; 2-10, the tenth vertical oilhole; 2-11, the 11 vertical oilhole; 2-12, the 12 vertical oilhole; 3-1, first groove; 3-2, last low pressure drain pan; 3-3, three-flute; 3-4, the 4th groove; 3-5, the 5th groove; 3-6, the 6th groove; 3-7, the 7th groove; 3-8, the 8th groove; 3-9, the 9th groove; 3-10, the tenth groove; 3-11, the 11 groove; 3-12, the 12 groove; 3-13, the tenth three-flute; 3-13 ', following low pressure drain pan.
Embodiment
Embodiment 1: this swivel joint is made up of oil circuit part, air path part and conductive hoop interface, and oil circuit part and air path part are isolated through two low pressure drain pans; Mandrel bottom surface and cylindrical shell side at swivel joint are equipped with the screw thread hydraulic fluid port, are connected with gas circuit with oil circuit; There is the conductive hoop interface swivel joint upper end, directly is connected with conductive hoop;
This swivel joint comprises: cylindrical shell 1, mandrel 2, mandrel wear-resistant pad 3, pressing plate wear-resistant pad 4, pressing plate 5, connecting plate 6, block 7, conductive hoop 8; Mandrel 2 is positioned at cylindrical shell 1, and a round platform is arranged at mandrel 1 bottom, and cylindrical shell 1 is positioned on the round platform, between mandrel 2 round platforms and cylindrical shell 1, is connected with mandrel wear-resistant pad 3; On mandrel 2, be connected with pressing plate 5, between pressing plate 5 and mandrel 2, pressing plate wear-resistant pad 4 arranged, have connecting plate 6 to be connected on the cylindrical shell 1 in pressing plate 5 upper ends; Be connected with block 7 in the side of cylindrical shell 1; Conductive hoop 8 is installed on the connecting plate 6 through screw through location, hole on the pressing plate 5; In the bottom of mandrel a plurality of axial bores are arranged, a plurality of radial holes are arranged on the sidewall of mandrel, there is a groove at each radial hole place, an axial bore and corresponding communicating of radial hole; A plurality of holes are arranged, corresponding the communicating of groove of the radial hole on described hole and the mandrel on the sidewall of cylindrical shell.
The axial bore of described mandrel bottom has: the first cross pore 1-1, the second horizontal oilhole 1-2, the 3rd horizontal oilhole 1-3, the 4th horizontal oilhole 1-4, the 5th horizontal oilhole 1-5, the 6th horizontal oilhole 1-6, the 7th horizontal oilhole 1-7, the 8th horizontal oilhole 1-8, the 9th horizontal oilhole 1-9, the tenth horizontal oilhole 1-10, the 11 oil hole 1-11 and the 12 horizontal oilhole 1-12;
Hole on the described cylinder lateral wall has: the first vertical pore 2-1, the second vertical oilhole 2-2, the 3rd vertical oilhole 2-3, the 4th vertical oilhole 2-4, the 5th vertical oilhole 2-5, the 6th vertical oilhole 2-6, the 7th vertical oilhole 2-7, the 8th vertical oilhole 2-8, the 9th vertical oilhole 2-9, the tenth vertical oilhole 2-10, the 11 vertical oilhole 2-11 and the 12 vertical oilhole 2-12;
Described groove has: the first groove 3-1, last low pressure drain pan 3-2, three-flute 3-3, the 4th groove 3-4, the 5th groove 3-5, the 6th groove 3-6, the 7th groove 3-7, the 8th groove 3-8, the 9th groove 3-9, the tenth groove 3-10, the 11 groove 3-11, the 12 groove 3-12, the tenth three-flute 3-13 and following low pressure drain pan 3-13 ';
The top of swivel joint is connected with conductive hoop through connecting plate; The first cross pore 1-1 of swivel joint cylindrical shell side, the second horizontal oilhole 1-2, the 3rd horizontal oilhole 1-3, the 4th horizontal oilhole 1-4, the 5th horizontal oilhole 1-5, the 6th horizontal oilhole 1-6, the 7th horizontal oilhole 1-7, the 8th horizontal oilhole 1-8, the 9th horizontal oilhole 1-9, the tenth horizontal oilhole 1-10, the 11 horizontal oilhole 1-11, the 12 horizontal oilhole 1-12 respectively through the first groove 3-1 on the mandrel, go up low pressure drain pan 3-2, three-flute 3-3, the 4th groove 3-4, the 5th groove 3-5, the 6th groove 3-6, the 7th groove 3-7, the 8th groove 3-8, the 9th groove 3-9, the tenth groove 3-10, the 11 groove 3-11, the 12 groove 3-12 and communicate with the first vertical pore 2-1, the second vertical oilhole 2-2, the 3rd vertical oilhole 2-3, the 4th vertical oilhole 2-4, the 5th vertical oilhole 2-5, the 6th vertical oilhole 2-6, the 7th vertical oilhole 2-7, the 8th vertical oilhole 2-8, the 9th vertical oilhole 2-9, the tenth vertical oilhole 2-10, the 11 vertical oilhole 2-11, the 12 vertical oilhole 2-12 of mandrel bottom surface, following low pressure drain pan 3-13 ', the tenth three-flute 3-13 and the 13 indulge oilhole and communicate.
The 13 is verticalOilhole is the drain tap of swivel joint self, does not have the corresponding connection with it of oilhole on the cylindrical shell.
Swivel joint mainly is made up of cylindrical shell 1, mandrel 2, mandrel wear-resistant pad 3, pressing plate wear-resistant pad 4, pressing plate 5, connecting plate 6 and block 7.Mandrel 1 with the screw threads conversion adapter during installation is fixed in the mechanism, and hydraulic tube in this mechanism and tracheae are connected to the corresponding oilhole in swivel joint mandrel bottom surface.Block the block 7 on the swivel joint cylindrical shell with in another mechanism with shift fork then, oil pipe in this mechanism and tracheae are connected to the oilhole of swivel joint cylindrical shell side.So just can be implemented in two and inter-agencyly in relative rotation transmit hydraulic oil and gas simultaneously.
In order to realize transmitting simultaneously the function of hydraulic oil and gas, the different operating characteristic to hydraulic oil and gas has adopted isolated structure in the utility model, promptly through the low pressure drain pan whole swivel joint is isolated into oil circuit and two parts of gas circuit.Mandrel bottom surface and cylindrical shell side at swivel joint are equipped with the screw thread hydraulic fluid port, are used to connect hydraulic pressure and gas circuit pipeline.Working pressure to hydraulic oil and gas circuit is different; This swivel joint is provided with twice low pressure drain pan between the circular groove of oil circuit and gas circuit; Near the low pressure drain pan of oil circuit, the leakage of the hydraulic element that are used to get on the bus is used for the internal leakage of swivel joint near the low pressure drain pan of gas circuit.High-pressure oil passage and low pressure gas circuit have been isolated completely through this twice low pressure drain pan.The seal element that swivel joint has used the hydraulic oil medium to use through rational Spielpassung, has guaranteed that hydraulic circuit leakage rate when work is very low.Leak the hole direct oil sump tank of oil, just protected the normal operation of gas circuit through the mandrel bottom.In order to take into account the demand on electric, leave the conductive hoop interface on the swivel joint, the conductive hoop of any way can be installed.
Claims (2)
1. dual-purpose centre revolving joint of liquid gas is characterized in that: this swivel joint is made up of oil circuit part, air path part and conductive hoop interface, and oil circuit part and air path part are through two low pressure drain pans isolation; Mandrel bottom surface and cylindrical shell side at swivel joint are equipped with the screw thread hydraulic fluid port, are connected with gas circuit with oil circuit; There is the conductive hoop interface swivel joint upper end, directly is connected with conductive hoop;
This swivel joint comprises: cylindrical shell, mandrel, mandrel wear-resistant pad, pressing plate wear-resistant pad, pressing plate, connecting plate and block; Mandrel is positioned at cylindrical shell, and a round platform is arranged at the mandrel bottom, and cylindrical shell is positioned on the round platform, between mandrel round platform and cylindrical shell, is connected with the mandrel wear-resistant pad; On mandrel, be connected with pressing plate, the pressing plate wear-resistant pad is arranged between pressing plate and mandrel, have connecting plate to be connected on the cylindrical shell in the pressing plate upper end; Side at cylindrical shell is connected with block; In the bottom of mandrel a plurality of axial bores are arranged, a plurality of radial holes are arranged on the sidewall of mandrel, there is a groove at each radial hole place, an axial bore and corresponding communicating of radial hole; A plurality of holes are arranged, corresponding the communicating of groove of the radial hole on the hole on the described cylinder lateral wall and the mandrel on cylinder lateral wall.
2. the dual-purpose centre revolving joint of a kind of liquid gas according to claim 1, it is characterized in that: the axial bore of described mandrel bottom has: first cross pore, the second horizontal oilhole, the 3rd horizontal oilhole, the 4th horizontal oilhole, the 5th oilhole, the 6th horizontal oilhole, the 7th horizontal oilhole, the 8th horizontal oilhole, the 9th horizontal oilhole, the tenth horizontal oilhole, the 11 horizontal oilhole, the 12 horizontal oilhole;
Hole on the described cylinder lateral wall has: the first vertical pore, the second vertical oilhole, the 3rd vertical oilhole, the 4th vertical oilhole, the 5th vertical oilhole, the 6th vertical oilhole, the 7th vertical oilhole, the 8th vertical oilhole, the 9th vertical oilhole, the tenth vertical oilhole, the 11 vertical oilhole, the 12 vertical oilhole;
Described groove has: first groove, last low pressure drain pan, three-flute, the 4th groove, the 5th groove, the 6th groove, the 7th groove, the 8th groove, the 9th groove, the tenth groove, the 11 groove, the 12 groove, the tenth three-flute and following low pressure drain pan;
The top of swivel joint is connected with conductive hoop through connecting plate; First cross pore of swivel joint cylindrical shell side, the second horizontal oilhole, the 3rd horizontal oilhole, the 4th horizontal oilhole, the 5th horizontal oilhole, the 6th horizontal oilhole, the 7th horizontal oilhole, the 8th horizontal oilhole, the 9th horizontal oilhole, the tenth horizontal oilhole, the 11 horizontal oilhole, the 12 horizontal oilhole respectively through first groove on the mandrel, go up low pressure drain pan, three-flute, the 4th groove, the 5th groove, the 6th groove, the 7th groove, the 8th groove, the 9th groove, the tenth groove, the 11 groove, the 12 groove and communicate with the first vertical pore, the second vertical oilhole, the 3rd vertical oilhole, the 4th vertical oilhole, the 5th vertical oilhole, the 6th vertical oilhole, the 7th vertical oilhole, the 8th vertical oilhole, the 9th vertical oilhole, the tenth vertical oilhole, the 11 oilhole, the 12 vertical oilhole of mandrel bottom surface, following low pressure drain pan, the tenth three-flute and the 13 are indulged oilhole and are communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200462613U CN202469326U (en) | 2012-02-14 | 2012-02-14 | Hydraulic/pneumatic central rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200462613U CN202469326U (en) | 2012-02-14 | 2012-02-14 | Hydraulic/pneumatic central rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469326U true CN202469326U (en) | 2012-10-03 |
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ID=46917484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200462613U Withdrawn - After Issue CN202469326U (en) | 2012-02-14 | 2012-02-14 | Hydraulic/pneumatic central rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202469326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661464A (en) * | 2012-02-14 | 2012-09-12 | 徐州徐工随车起重机有限公司 | Dual-purpose central rotary joint for hydraulic oil and gas |
| CN103759088A (en) * | 2013-12-23 | 2014-04-30 | 上海打捞局芜湖潜水装备厂 | Gas and liquid transmission slip ring |
-
2012
- 2012-02-14 CN CN2012200462613U patent/CN202469326U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661464A (en) * | 2012-02-14 | 2012-09-12 | 徐州徐工随车起重机有限公司 | Dual-purpose central rotary joint for hydraulic oil and gas |
| CN102661464B (en) * | 2012-02-14 | 2014-08-13 | 徐州徐工随车起重机有限公司 | Dual-purpose central rotary joint for hydraulic oil and gas |
| CN103759088A (en) * | 2013-12-23 | 2014-04-30 | 上海打捞局芜湖潜水装备厂 | Gas and liquid transmission slip ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140813 |
|
| RGAV | Abandon patent right to avoid regrant |