Fixing arrangement for a hoisting machine, and elevator assembly

A fixing arrangement for a hoisting machine, the hoisting machine including a stationary structure and a rotating structure, the rotating structure including a traction sheave having a traction surface to exert a force effect, the fixing arrangement comprising:

• a fixing member extending laterally outward from a guide rail in at least two directions, the at least two directions being opposite to one another, and being in a width direction of the guide rail;
• wherein
• the hoisting machine is fixed to the fixing member at at least two fixing points to damp vibration caused by operation of the hoisting machine, the at least two fixing points being at opposite ends of the fixing member in the width direction of the guide rail, and the at least two fixing points being spaced apart from the guide rail by substantially the same distance in the width direction of the guide rail,
• the at least two fixing points are at substantially a same height,
• a damper is arranged at each of the at least two fixing points, and
• the at least two fixing points are spaced apart from each other by at least a width of the fixing member, the width of the fixing member being in the width direction of the guide rail.

An elevator assembly comprising:

• an elevator car suspended in an elevator hoistway;
• a hoisting machine configured to move the elevator car along a guide rail fixed to a wall of the elevator hoistway, the hoisting machine including a stationary structure and a rotating structure, the stationary structure including a stator, and the rotating structure including a rotor and a traction sheave;
• wherein
• the stator, the rotor and the traction sheave are fitted concentrically on an axis of rotation of the hoisting machine;
• the hoisting machine is fitted in connection with the guide rail via a support structure, the guide rail being fixed to the wall of the elevator hoistway apart from the wall surface,
• the rotating structure is supported by the stationary structure of the hoisting machine via one or more bearings,
• the stationary structure is further supported by the guide rail fixed to the wall of the elevator hoistway,
• the stator includes a concentrated fractional-slot winding, the slot number q of which is less than about 0.5,
• a distance of a rear surface of the guide rail from the wall of the elevator hoistway is:
• a) between about 120 millimeters and about 170 millimeters when the nominal load of the elevator car is less than or equal to about 480 kg;
• b) between about 128 millimeters and about 170 millimeters when the nominal load of the elevator car is between about 480 kg and about 680 kg;
• or c) between about 150 millimeters and about 195 millimeters when the nominal load of the elevator car is between about 680 kg and about 1155 kg, the hoisting machine is fixed to a support structure at at least two fixing points that are spaced apart in a width direction of the support structure, the at least two fixing points being at opposite ends of the support structure in a width direction of the guide rail, and the at least two fixing points being spaced apart from the guide rail by substantially the same distance in the width direction of the guide rail,
• the at least two fixing points are at substantially a same height, and
• a distance between the at least two fixing points is greater than, or equal to, a diameter of the traction sheave.