摘要:
The object of the invention is a method and an apparatus for measuring the load of an elevator car, which elevator comprises at least a hoisting machine plus shaft, said hoisting machine being provided with a motor, and a traction sheave fitted onto the shaft, and also a brake, and in which solution the load of an elevator car is measured by the aid of a measuring means. The load of the elevator car is measured with the measuring means from the shaft of the traction sheave of the hoisting machine.
摘要:
The tensioning system for the traction belt of an elevator is installed or can be installed in connection with the car and/or the counterweight of the elevator for pretensioning at least one traction belt running between these and comprises means for storing energy. In addition to this, the tensioning system is configured to use the energy stored in the means intended for storing energy for pulling in the traction belt in question for returning tension when the tension of the traction belt falls.The patent application also contains an independent claim for an elevator.
摘要:
An elevator may include an elevator car, a set of hoisting ropes, a traction sheave, and a compensating device. The set of hoisting ropes may include first and second rope portions. The elevator car may include one or more first diverting pulleys from which the first rope portions extend upward. The elevator car may include one or more second diverting pulleys from which the second rope portions extend downward. The first rope portions may be under a first rope tension. The second rope portions may be under a second rope tension that is different from the first rope tension. The compensating device may act in substantially opposite directions on the first and second rope portions. The compensating device may produce an auxiliary force acting substantially in a same direction as the first rope tension.
摘要:
Travelator, which comprises a frame (2) installed on top of a fixed base (1), such as the floor or other support, a conveyor (3), which is supported on the frame (1), an electrical power unit (4) for driving the conveyor, an entry ramp and/or departure ramp (5, 6) or similar, which forms a walking surface and which is arranged on top of a fixed base, such as the floor or other support, in the conveying direction of the conveyor before the conveyor and/or likewise after the conveyor, and electrical devices (7, 8, 9). The entry ramp and/or departure ramp (5, 6) or similar comprises a frame casing (10), in which is a hollow interior space (11), into which the electrical devices (7, 8, 9) of the travelator are placed. For servicing the electrical equipment the travelator is stopped and closed to traffic; the entry ramp and/or departure ramp, which contains the electrical equipment requiring servicing, is detached from the travelator; a new or serviced entry ramp and/or departure ramp is connected to the travelator; the entry ramp and/or departure ramp requiring servicing is transported away from the travelator for servicing at the servicing site; and the travelator is started and opened to traffic.
摘要:
The object of the invention is a method for modernizing an elevator, and a traction sheave elevator, which elevator comprises at least an elevator car and a traction sheave that moves the elevator car by means of elevator ropes, the rim of which traction sheave comprises one or more rope grooves. In connection with modernization a traction sheave is installed as the traction sheave of the elevator, the rope grooves of which traction sheave comprise a material, the frictive traction achieved by which is greater than the frictive traction between the parent material of the metallic traction sheave and the elevator ropes.
摘要:
The object of the invention is an elevator arrangement, which comprises at least two elevator cars that are connected to each other with suspension ropes or corresponding and are configured to move simultaneously with each other and reciprocally in an elevator hoistway, and a hoisting machine provided with at least one traction sheave or corresponding. The arrangement comprises at least one compensation means for compensating positioning inaccuracies caused by loading of the elevator cars.
摘要:
The invention relates to an elevator having a hoistway, an elevator car movable in the hoistway and provided with a car brake, and a first coupling means movably mounted on the car, and a second coupling means mounted separate from the car at proximity of an end of the hoistway, the first and second coupling means being counterparts for each other and provided for being coupled in force-transmitting manner to each other, the car brake being triggerable by movement of the first coupling means. One of the first and second coupling means has coupling points at different vertical levels, and in the other of said first and second coupling means can couple to said one of the first and second coupling means at each of said coupling points. The invention also relates to a method for forming a safety space in the elevator.
摘要:
Elevator, comprising: a car of the elevator and a counterweight that are to be moved reciprocally; at least one roping or belting traveling via a top pulley assembly for connecting the car of the elevator and the counterweight to each other via the top pulley assembly; at least one roping or belting traveling via a bottom pulley assembly for connecting the car of the elevator and the counterweight to each other via the bottom pulley assembly. At least one roping or belting traveling via the bottom pulley assembly is pretensioned or can be pretensioned.An improvement for reducing elongation of the roping or belting of an elevator in a loading situation of the car of the elevator is produced when an elevator according to the invention is used in such a way that at least one roping or belting traveling via the bottom pulley assembly is pretensioned, in which case owing to the pretensioning at least one roping or belting traveling via the top pulley assembly and at least one roping or belting traveling via the bottom pulley assembly interact in such a way that the elasticity of the connected roping or belting to be formed in this way decreases compared to the situation before pretensioning.
摘要:
An elevator may include an elevator car; a traction sheave that comprises a plurality of grooves; a hoisting machine configured to drive the traction sheave; and a plurality of beltless hoisting ropes configured to interact with the traction sheave to move the elevator car. An overall contact between the traction sheave and the hoisting ropes may exceed a contact angle of 180°. A diameter of the traction sheave may be less than 320 mm. The hoisting ropes may include a load-bearing part twisted from steel wires. A thickness of the load-bearing part twisted from the steel wires may be less than 8 mm. Each of the hoisting ropes may further include an individual exterior coating.
摘要:
The object of the invention is an apparatus for fixing a hoisting machine of an elevator in an elevator comprising at least an elevator car configured to move reciprocally in an elevator hoistway and at least one or more counterweights or compensating weights, which are for their part connected to support the elevator car by the aid of at least one support member, such as by the aid of a rope or a belt, and also by the aid of diverting pulleys, and a hoisting machine provided with at least one traction sheave or corresponding, and also at least one or more traction members, such as a belt, a rope or a chain, which are configured to transmit the rotational movement of the traction sheave into movement of the elevator car guided by the guide rails and of the one or more counterweights or compensating weights guided by the counterweight guide rails or compensating weight guide rails. The apparatus comprises a machine station, comprising at least fixing points and means for fixing the traction sheave of the elevator, the motor and the diverting pulleys of the traction members into their position essentially precisely in relation to each other.