摘要:
The invention relates to a lift installation (1) having a lift car (5) which can be moved along a guide rail (3). The lift installation here comprises at least a first pair (29) of rollers and a second pair (31) of rollers. The guide rail (3) runs between the two rollers (45, 46) of the first pair (29) of rollers and between the two rollers (47, 48) of the second pair (31) of rollers. The lift installation (1) also has an apparatus (19) for subjecting the lift car (5) to a retaining force (21), wherein there is a horizontal offset between the point at which the retaining force takes effect and the centre of gravity of the lift car, and therefore the lift car is subjected to a first torque. In addition, the lift car has at least a first compensating device (63), so that, when the lift car (5) is at rest, the guide rail (3) is subjected to sufficient force to give rise to a second torque, which largely compensates for the first torque, so that a first roller (45) of the first pair (29) of rollers is largely relieved of loading when the lift car (5) is at rest.
摘要:
The invention relates to an electric-motor linear drive arrangement, in particular for moving walkways for conveying people or objects, comprising a long stator running along a movement direction as active primary part, a plurality of passive secondary parts which are movable with respect to the primary part and are arranged with one another along the movement direction, wherein the long stator has a multiplicity of successive long-stator segments (1) in the form of coil groups along the movement direction. In accordance with the invention, each long-stator segment (1) has a dedicated control device (5), wherein the control device (5) is designed to move the secondary parts on the basis of control parameters set for the corresponding long-stator segment (1). The subject matter of the invention also consists in a method for operating the electric-motor linear drive arrangement, wherein different movement profiles are preset to the respective control devices (5) for at least some of the long-stator segments (1) in order to effect the non-uniform movement of the secondary parts along the long stator.
摘要:
The present invention relates to an elevator system (100) having a car (110) that is movable in an elevator shaft (101), wherein the car (110) comprises a chassis element (120), wherein at least one rail (102a, 102b) is arranged in the elevator shaft (101), wherein the elevator system (101) comprises at least one linear motor (400) with in each case one primary part (410) and in each case one secondary part (300), wherein the primary part (410) of the at least one linear motor (400) is arranged on the at least one rail (102a, 102b), wherein the secondary part (300) of the at least one linear motor (300) is arranged on the chassis element (120), and wherein the secondary part (300) of the at least one linear motor (400) at least partially encloses the primary part (410) of the at least one linear motor (400).
摘要:
The invention relates to a linear synchronous motor comprising a long stator (1) having coil windings (S) and a rotor (2), which has a multiplicity of successive magnets (3) in the longitudinal direction (x) of the linear synchronous motor, wherein the long stator (1) is formed from a multiplicity of long stator segments (4), which each have a plurality of coil windings (S) arranged successively in the longitudinal direction and which are separated from one another by a gap (5, 5'). According to the invention, the total length (LG) of in each case one long stator segment (4) and an adjacent gap (5) is constant over a multiplicity of successive long stator segments (4), wherein the length (LL) measured in the longitudinal direction (x) over all of the magnets (3) of the rotor (2) is an integral multiple of the total length (LG).