Patent classifications
B66B7/08
End-fastening apparatus for lifting rope and elevator system using thereof
The present invention provides a pull rope head fixing apparatus and an elevator system using the same, and belongs to the technical field of elevators. The pull rope head fixing apparatus of the present invention is configured to simultaneously fix rope heads of N pull ropes that are arranged in parallel, and includes: a hydraulic cylinder body configured to form a hydraulic cylinder; N first hydraulic sub-cylinders arranged in parallel on the hydraulic cylinder body and communicated with the hydraulic cylinder; and first pistons each disposed corresponding to each of the first hydraulic sub-cylinders. The pull rope head fixing apparatus of the present invention can automatically balance the tensions of multiple pull ropes fixed by it.
End-fastening apparatus for lifting rope and elevator system using thereof
The present invention provides a pull rope head fixing apparatus and an elevator system using the same, and belongs to the technical field of elevators. The pull rope head fixing apparatus of the present invention is configured to simultaneously fix rope heads of N pull ropes that are arranged in parallel, and includes: a hydraulic cylinder body configured to form a hydraulic cylinder; N first hydraulic sub-cylinders arranged in parallel on the hydraulic cylinder body and communicated with the hydraulic cylinder; and first pistons each disposed corresponding to each of the first hydraulic sub-cylinders. The pull rope head fixing apparatus of the present invention can automatically balance the tensions of multiple pull ropes fixed by it.
Concepts for detecting a deterioration state of a load bearing capacity in a suspension member arrangement for an elevator
Methods and devices detect a deterioration state of a load bearing capacity in an elevator suspension member arrangement having several suspension members, such as belts, including electrically conductive cords incorporated into an elastomer material. Deterioration is determined by applying alternating electric voltages to the cords included in legs of a circuitry. Phase shifts between the alternating voltages, for example by determining sum voltages and/or differential voltages, provide valuable information about a condition of the belt. A fixation arrangement of the suspension member arrangement is adapted to enable or simplify the proposed measurements. Furthermore, counting a number of performed bending cycles provides further information to be taken into account for determining the current deterioration state of the belts. Overall, deteriorations in a suspension member such as broken cords, shunts between cords, connections between cords and ground potential and/or deterioration due to corrosion of cords may be easily detected.
ELEVATOR ROPE TERMINAL STRUCTURE
Provided is an elevator rope terminal structure including an insertion body to be held in contact with an elevator rope having a flat sectional shape. Pressing portions provided to the insertion body are configured to maintain a state in which the insertion body is pressed against the elevator rope. The elevator rope and the insertion body are to be held inside a through hole of a housing. The through hole has an inner surface including a first receiving surface and a second receiving surface which are to be positioned on both sides of the elevator rope in a thickness direction of the elevator rope. A distance between the first receiving surface and the second receiving surface decreases toward a rope passage port of the through hole. The insertion body includes a first insertion member to be arranged between the elevator rope and the first receiving surface.
Elevator system suspension member termination with containment
A termination device for a suspension member of an elevator system includes a housing and a wedge located in the housing. The wedge extends across a width of the suspension member and at least partially across a thickness of the suspension member. The wedge is interactive with the suspension member to apply a clamping force to the suspension member in response to an axial load acting on the suspension member. The wedge includes a wedge lip configured to contain the suspension member within a lateral extent of the wedge.
CONNECTION ELEMENT FOR ELECTRICALLY CONTACTING TENSION MEMBERS IN A LOAD-BEARING BELT FOR AN ELEVATOR SYSTEM, AND METHOD FOR ASSEMBLING THE CONNECTION ELEMENT ON THE BELT
A connection element for electrically contacting tension members embedded into a matrix material of a load-bearing belt for an elevator system has a frame with an upper part, a lower part and multiple electrically conductive contact elements. The frame is shaped to receive the belt in an interior space delimited at at least two opposite sides. The contact elements are formed as stamped and bent metal parts, and some regions of the contact elements are arranged in the upper part of the frame with other regions protruding from the upper part of the frame into the interior space, for example in the form of piercing tips, in order to contact the tension members embedded in the portion of the belt received in the interior space.
Elevator traveling cable hanger assembly
An elevator traveling cable hanger assembly for use with an elevator is provided. The elevator traveling cable hanger assembly includes a base structure configured for attachment to an elevator hoistway structure. An insert is configured for attachment to the base structure and further configured to support an elevator traveling cable. A plurality of wire rope clips are configured to support a traveling cable core extending from the elevator traveling cable. A plurality of fasteners are configured to secure the base structure, insert, elevator traveling cable and plurality of wire rope clips to the elevator hoistway structure.
Elevator traveling cable hanger assembly
An elevator traveling cable hanger assembly for use with an elevator is provided. The elevator traveling cable hanger assembly includes a base structure configured for attachment to an elevator hoistway structure. An insert is configured for attachment to the base structure and further configured to support an elevator traveling cable. A plurality of wire rope clips are configured to support a traveling cable core extending from the elevator traveling cable. A plurality of fasteners are configured to secure the base structure, insert, elevator traveling cable and plurality of wire rope clips to the elevator hoistway structure.
Method and device for determining a deterioration state in a suspension member for an elevator
A method for determining a deterioration state in a suspension member arrangement having a suspension member including a plurality of electrically conductive cords includes the steps of: counting a number of bending cycles applied to the suspension member; measuring an electrical characteristic of the suspension member upon applying an electrical voltage to at least one of the cords; performing at least one of (a) determining a critical deterioration state upon monitoring both the bending cycles number and the electrical characteristic, and (b) determining an unexpected deterioration state based on deriving a current actual deterioration state of the suspension member based on the electrical characteristic and assuming a currently expected deterioration state based on the bending cycles number and comparing the current actual deterioration state with the currently expected deterioration state; initiating a defined procedure upon determining at least one of the critical deterioration state and the unexpected deterioration state.
ELEVATOR
An elevator includes a compensating sheave, a compensating rope, a guide, a holder, a driver, a lateral vibration detector, and driver controller. The compensating rope is looped around the compensating sheave to be bent back upward in a hoistway, and has a first end connected to a car and a second end connected a counterweight, the compensating rope suspended from the car and the counterweight. The guide guides the compensating sheave in a vertically displaceable manner. The holder holds the guide to be displaceable in a horizontal direction. The driver drives the holder in the horizontal direction. The lateral vibration detector detects lateral vibration of the compensating rope. The driver controller controls the driver based on a result of detection by the lateral vibration detector and accordingly drive the holder in the horizontal direction so as to dampen lateral vibration of the compensating rope.