Linear drive
The present invention relates to a linear drive ( 1 ), comprising a running track ( 2 ), at least one movement unit ( 4 ) with at least one magnetic element ( 5 ), which is linearly movable on the running track ( 2 ), a plurality of electrical primary magnets ( 3 ) which are stationarily arranged on the running track ( 2 ) and act magnetically upon the at least one magnetic element ( 5 ), wherein the primary magnets ( 3 ) can be activated individually or in groups for driving the movement unit ( 4 ), a magnetically activatable element ( 7 ) on the movement unit ( 4 ), wherein the magnetically activatable element ( 7 ) can be activated by at least one primary magnet ( 3 ) independently of the drive of the movement unit ( 4 ), and an actuator ( 9 ) and/or a load on the movement unit ( 4 ), the magnetically activatable element ( 7 ) being in operative connection with the actuator ( 4 ) and/or the load.
1. A linear drive ( 1 ), comprising:
a running track ( 2 )
at least one movement unit ( 4 ) with at least one magnetic element ( 5 ), which is linearly movable on the running track ( 2 ),
a plurality of electrical primary magnets ( 3 ) which are stationarily arranged on the running track ( 2 ) and act magnetically upon the at least one magnetic element ( 5 ), wherein the primary magnets ( 3 ) are configured to be activated individually or in groups for driving the movement unit ( 4 ),
a magnetically activatable element ( 7 ) on the movement unit ( 4 ), wherein the magnetically activatable element ( 7 ) is configured to be activated by at least one primary magnet ( 3 ) independently of a drive of the movement unit ( 4 ), and
an actuator ( 9 ) and/or a load on the movement unit ( 4 ), the magnetically activatable element ( 7 ) being in operative connection with the actuator ( 4 ).
2. The linear drive according to claim 1 , characterized in that at least one primary magnet is configured to activate the magnetically activatable element ( 7 ), said primary magnet not being configured to drive the movement unit at the moment of activation of said magnetically activatable element.
3. The linear drive according to claim 1 , characterized in that the magnetically activatable element ( 7 ) comprises a permanent magnet or a ferromagnetic component.
4. The linear drive according to claim 1 , characterized in that the magnetically activatable element ( 7 ) acts mechanically upon the actuator ( 9 ).
5. The linear drive according to claim 1 , characterized in that the magnetically activatable element ( 7 ) is disposed in a direction of movement ( 6 ) of the movement unit ( 4 ) in front of or behind the magnetic element ( 5 ).
6. The linear drive according to claim 1 , characterized in that the magnetically activatable element ( 7 ) comprises an induction coil, wherein voltage can be induced into the induction coil by means of a primary magnet ( 3 ).
7. The linear drive according to claim 6 , characterized in that the actuator ( 9 ) is configured to be supplied with current via the induction coil.
8. The linear drive according to claim 1 , characterized in that the actuator ( 9 ) is configured to move and/or hold objects on the movement unit ( 4 ).
9. The linear drive according to claim 1 , characterized in that the actuator ( 9 ) is configured to switch mechanical devices and/or current circuits.
10. The linear drive according to claim 1 , characterized in that the actuator ( 9 ) is configured to switch a device that changes the running properties of the movement unit ( 4 ).
11. The linear drive according to claim 1 , wherein the magnetic element ( 5 ) is a secondary magnet.
12. The linear drive according to claim 1 , wherein the magnetically activatable element ( 7 ) is configured to be activated by at least one primary magnet ( 3 ) independently of a drive of the movement unit ( 4 ) for the transmission of energy to said magnetically activatable element.
13. A linear drive ( 1 ), comprising:
a running track ( 2 )
at least one movement unit ( 4 ) with at least one magnetic element ( 5 ), which is linearly movable on the running track ( 2 ),
a plurality of electrical primary magnets ( 3 ) which are stationarily arranged on the running track ( 2 ) and act magnetically upon the at least one magnetic element ( 5 ), wherein the primary magnets ( 3 ) can be activated individually or in groups for driving the movement unit ( 4 ),
a magnetically activatable element ( 7 ) on the movement unit ( 4 ), wherein the magnetically activatable element ( 7 ) can be activated by at least one primary magnet ( 3 ) independently of the drive of the movement unit ( 4 ), and
at least one of an actuator ( 9 ) and a load on the movement unit ( 4 ), the magnetically activatable element ( 7 ) being in operative connection with the at least one of the actuator ( 9 ) and the load.
14. The linear drive according to claim 13 , characterized in that at least one primary magnet is configured to activate the magnetically activatable element ( 7 ), said primary magnet not being configured to drive the movement unit at the moment of activation of said magnetically activatable element.
15. The linear drive according to claim 13 , characterized in that the magnetically activatable element ( 7 ) comprises a permanent magnet or a ferromagnetic component.
16. The linear drive according to claim 13 , characterized in that the magnetically activatable element ( 7 ) acts mechanically upon the actuator ( 9 ).
17. The linear drive according to claim 13 , characterized in that the magnetically activatable element ( 7 ) is disposed in a direction of movement ( 6 ) of the movement unit ( 4 ) in front of or behind the magnetic element ( 5 ).
18. The linear drive according to claim 13 , characterized in that the magnetically activatable element ( 7 ) comprises an induction coil, wherein voltage can be induced into the induction coil by means of a primary magnet ( 3 ).
19. The linear drive according to claim 18 , characterized in that the at least one of the load and the actuator ( 9 ) is configured to be supplied with current via the induction coil.