Coupling device
A coupling device has two releasably interconnected coupling parts which are movably arranged relative to one another in at least one direction of rotation. Each coupling part has fluid channels which are separated in groups from each other and open into respectively assignable connecting spaces. The connecting spaces are located at adjacent end sides of the coupling parts and are separated from one another within a coupling part.
1. A coupling device, comprising:
a first male coupling part; and
a second female coupling part;
wherein the first male coupling part and the second female coupling part are detachably interconnected;
wherein the first male coupling part and the second female coupling part are arranged movably in at least one direction of rotation relative to each other;
wherein the first male coupling part has a first group of fluid channels, a second group of fluid channels, and a third group of fluid channels;
wherein the first group of fluid channels, the second group of fluid channels, and the third group of fluid channels are separated from each other in a form of an axially and radially stepped arrangement;
wherein the first group of fluid channels, the second group of fluid channels, and the third group of fluid channels are sealed against each other;
wherein the second female coupling part has a fourth group of fluid channels, a fifth group of fluid channels, and a sixth group of fluid channels;
wherein the fourth group of fluid channels, the fifth group of fluid channels, and the sixth group of fluid channels are separated from each other;
wherein the first group of fluid channels and the fourth group of fluid channels open into a first connection chamber, the second group of fluid channels and the fifth group of fluid channels open into a second connection chamber, and the third group of fluid channels and the sixth group of fluid channels open into a third connection chamber;
wherein the first connection chamber is located at a first end face of the first male coupling part and a second end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts;
wherein the second connection chamber is located at a third end face of the first male coupling part and a fourth end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts;
wherein the third connection chamber is located at a fifth end face of the first male coupling part and a sixth end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts;
wherein for the rotatable arrangement of the first male coupling part relative to the second female coupling part, a pivot bearing is arranged between the first male coupling part and an attachment part, which can be used to attach the first male coupling part in the coupling position relative to the second female coupling part for making the coupling connection.
2. The coupling device according to claim 1 , wherein each of the first group of fluid channels, the second group of fluid channels, the third group of fluid channels, the fourth group of fluid channels, the fifth group of fluid channels, and the sixth group of fluid channels comprise two or more channels.
3. The coupling device according to claim 1 , wherein the fluid channels of the first group of fluid channels, the fluid channels of the second group of fluid channels, the fluid channels of the third group of fluid channels, the fluid channels of the fourth group of fluid channels, the fluid channels of the fifth group of fluid channels, and the fluid channels of the sixth group of fluid channels are formed of parallel or oblique drilled holes having the same or different diameters in the relevant coupling part and have a port for attaching a fluid line at ends of the ports facing away from the relevant connection chamber.
4. The coupling device according to claim 3 , wherein the fluid line is a pneumatic line.
5. The coupling device according to claim 1 , wherein the pivot bearing comprises a rolling bearing.
6. The coupling device according to claim 1 , wherein the pivot bearing comprises a ball bearing.
7. The coupling device according to claim 1 , wherein the individual connection chambers in the relevant coupling part are sealed against each other and against the environment in the axial and/or radial direction by means of a sealing system having several sealing rings.
8. The coupling device according to claim 1 , wherein in the stepped arrangement of the connecting chambers, the connecting chambers can be at least partially formed by an axial interstice between the end faces of the first male coupling part and the second female coupling part facing each other, and wherein at the same axial length of the interstice, a volume of each outer connection chamber in the stepped arrangement is each greater than the volume of the connection chamber one step inward.
9. The coupling device according to claim 1 , wherein in the stepped arrangement of the connecting chambers, an area along a longitudinal axis of the first male coupling part is kept free of the fluid channels of the first group of fluid channels, the fluid channels of the second group of fluid channels, and the fluid channels of the third group of fluid channels and a guide pin of the first male coupling part engages in a sealing manner with a guide receptacle of the female coupling part.
10. The coupling device according to claim 9 , wherein between the guide pin and the guide receptacle a spacer and/or a thrust bearing of predetermined axial length is inserted.
11. The coupling device according to claim 1 , wherein there are a different number of channels between the first male coupling part and the second female coupling part.
12. A coupling device, comprising:
a first male coupling part; and
a second female coupling part;
wherein the first male coupling part and the second female coupling part are detachably interconnected;
wherein the first male coupling part and the second female coupling part are arranged movably in at least one direction of rotation relative to each other;
wherein the first male coupling part has a first group of fluid channels, a second group of fluid channels, and a third group of fluid channels;
wherein the first group of fluid channels, the second group of fluid channels, and the third group of fluid channels are separated from each other in a form of an axially and radially stepped arrangement;
wherein the first group of fluid channels, the second group of fluid channels, and the third group of fluid channels are sealed against each other;
wherein the second female coupling part has a fourth group of fluid channels, a fifth group of fluid channels, and a sixth group of fluid channels;
wherein the fourth group of fluid channels, the fifth group of fluid channels, and the sixth group of fluid channels are separated from each other;
wherein the first group of fluid channels and the fourth group of fluid channels open into a first connection chamber, the second group of fluid channels and the fifth group of fluid channels open into a second connection chamber, and the third group of fluid channels and the sixth group of fluid channels open into a third connection chamber;
wherein the first connection chamber is located at a first end face of the first male coupling part and a second end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts; and
wherein the second connection chamber is located at a third end face of the first male coupling part and a fourth end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts; and
wherein the third connection chamber is located at a fifth end face of the first male coupling part and a sixth end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts; and
wherein in the stepped arrangement of the connecting chambers, an area along a longitudinal axis of the first male coupling part is kept free of the fluid channels of the first group of fluid channels, the fluid channels of the second group of fluid channels, and the fluid channels of the third group of fluid channels and a guide pin of the first male coupling part engages in a sealing manner with a guide receptacle of the female coupling part.
13. A coupling device, comprising:
a first male coupling part; and
a second female coupling part;
wherein the first male coupling part and the second female coupling part are detachably interconnected;
wherein the first male coupling part and the second female coupling part are arranged movably in at least one direction of rotation relative to each other;
wherein the first male coupling part has a first group of fluid channels, a second group of fluid channels, and a third group of fluid channels;
wherein the first group of fluid channels, the second group of fluid channels, and the third group of fluid channels are separated from each other in a form of an axially and radially stepped arrangement;
wherein the first group of fluid channels, the second group of fluid channels, and the third group of fluid channels are sealed against each other;
wherein the second female coupling part has a fourth group of fluid channels, a fifth group of fluid channels, and a sixth group of fluid channels;
wherein the fourth group of fluid channels, the fifth group of fluid channels, and the sixth group of fluid channels are separated from each other;
wherein the first group of fluid channels and the fourth group of fluid channels open into a first connection chamber, the second group of fluid channels and the fifth group of fluid channels open into a second connection chamber, and the third group of fluid channels and the sixth group of fluid channels open into a third connection chamber;
wherein the first connection chamber is located at a first end face of the first male coupling part and a second end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts;
wherein the second connection chamber is located at a third end face of the first male coupling part and a fourth end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts; and
wherein the third connection chamber is located at a fifth end face of the first male coupling part and a sixth end face of the second female coupling part adjacent to each other which are separated from each other within one of the coupling parts; and
wherein there are a different number of channels between the first male coupling part and the second female coupling part.