摘要:
A hoist with a lifting device, by way of which a load suspension device connected with the lifting device via a traction mechanism can be raised and lowered, and with a control device which is arranged between the load suspension device and the traction mechanism and includes a housing with a handle for manipulating the load suspension device. Switching members are arranged in the housing for controlling the lifting device, and a high-strength connecting member is fastened in the housing, with the traction mechanism and the load suspension device being fastened to the connecting member. The housing is divided into a mechanical part with the handle for receiving an actuating mechanism for the switching members and into an electrical part for receiving the switching members with the connecting member being arranged between the mechanical part and the electrical part.
摘要:
A hoist, including: load suspension device, a lifting means for raising and lowering the load suspension device; a traction mechanism connecting the suspension device with the lifting device; and a control device for the lifting device and the load suspension device. The control device is connected with the load suspension device and including a housing, a handle for manipulating the load suspension means, switching members arranged in the housing which are actuable for controlling the lifting device, and switching rockers arranged in the housing so as to be able to actuate the switching members. The switching rockers are each inclined toward the handle and are swivable around and connected to one end of a rocker shaft extending horizontally when the control device is considered as vertically suspended from the traction mechanism. The switching members are located so as to be reachable by a thumb of an operator's hand grasping the handle, while the handle is curved so that an imaginary line continuing from an outer surface of the handle intersects each of the switching rockers near supporting surfaces of the switching rockers. The supporting surface of each of the switching rockers includes a central region located opposite the rocker shaft so as to receive the operator's thumb in a neutral position and two edge regions that adjoin a top and a bottom of the central region at an angle in a direction tranverse to the rocker shafts so as to receive the operator's thumb in a switching position.
摘要:
A cost-effective ergonomic shaped suspended control panel for remotely controlling machinery, such as hoists or cranes. The suspended control panel has two curved housing portions and a curved circuit card mounted in the interior of the curved housing. Keys are mounted to the front side of the circuit card and switching devices are mounted to the back side of the circuit card. An electric line, supported by a cable, is electronically connected to the circuit card, the keys and the switching devices. The control panel is easily assembled through use of plug sockets for connecting the switching devices to the circuit board. Each plug socket is mounted with spring clamps which extend through the circuit card for wiring.
摘要:
An electric drive with brakes, in particular for hoists, lifting devices or positioning transporting systems, having a brake disk which is movable axially on a motor shaft so as to rotate therewith via a toothing. The brake disk has brake faces at both sides and can be pressed against a stationary counter-brake disk by a spring force. An electromagnetic device is provided which, when connected to current, causes the brake to be released against the spring force. The electromagnetic device has a.c. magnets and E-shaped magnet coil yokes. The counter-pole faces associated with the coil yokes are arranged at magnet yokes which can move angularly on all sides so that the counter-pole faces can be aligned at the end faces of the E-shaped magnet coil yokes located opposite thereto when current is applied to the a.c. magnet.
摘要:
In this method and apparatus for the wireless control of a lift device and, in particular, of a traveling crane, a plurality of transmitting units communicate by infrared transmission of data telegrams to a receiving unit associated with the crane. The data telegrams include an integrated address signal that is unique to each transmitting unit and is stored in a memory module of the transmitting unit. The receiving unit decodes the data telegram and, if the crane is not then in use, stores the address signal in a comparison circuit of the receiving unit. Only subsequently-received data telegrams incorporating the stored address signal are passed to the crane for controlling the crane, thereby assuring that a user not then in control of a crane operation cannot interfere with its operation. Each transmitting unit also includes a user-operable release switch for releasing that user's control of the crane by clearing the address signal then stored in the comparison unit so as to permit control of the crane by other users through other transmitting units.
摘要:
The invention relates to a suspended control device (20) which is suspended by means of a control line (1, 24) connected to a unit to be controlled (21). Said suspended control device is especially a control switch or a suspended push-button switch for controlling hoisting equipment, the control line (1, 24) comprising electrical lines (2) for transmitting control signals, and a traction relief element (22) which is supported at the top, on the unit (21), and used to absorb weight and tractive forces. The aim of the invention is to provide a suspended control device (20) whereby the length of the control line (1, 24) can be easily changed. To this end, a storage element for receiving and releasing a defined length of the electrical lines (2) is provided behind the region wherein the traction relief element (22) is supported, seen in the direction of the unit (21) from the suspended control device (20).
摘要:
An operating device for the manual actuation of hoisting equipment, with at least one spring-loaded switch element (2) for each direction of movement of the lifting device arranged in a switch housing (1), wherein each switch element (2) includes a pressure activation mechanism (5), a first electrical micro-key button (4), and at least one additional control or switch element, especially another electrical micro-key button (6), and the pressure activation mechanism (5) is arranged in front of the micro-key button (4) and the additional control or switch element and these can be activated in succession by means of such structure.
摘要:
A process and apparatus for determining a load on a lifting mechanism including a load measuring device and a three-phase induction motor operable for lifting and lowering the load. The effective power consumption of the induction motor is determined by the load measuring device based on a measured current and measured voltage of the induction motor. The measured effective power consumption is then compared with a reference power, which is calculated as the power output of the induction motor driving a nominal load of the lifting mechanism, to calculated an instantaneous load on the lifting mechanism. The inventive apparatus and process advantageously requires no modifications or additions to load carrying parts of a lifting mechanism or carrying gear and provides accurate real time measurement of the load.
摘要:
A measurement device is furnished at a lifting means, in particular at a lifting rope, subjected to a load and used in hoisting machines. A support element (5) is disposed at the hoisting device and is attached with at least two force transducers (1) via in each case a support hinge (4). The free ends (3) of the force transducers (1) are joined to each other via a common hinge (9). The lifting means (10) engages at the hinge (9). The force transducers (1) are connected for transferring the force-proportional measurement signals to a signal processing means (12-15). This provides a measurement device and a measurement method which achieves reliable and relevant measurement values with high precision and accuracy. The measurement device is further capable of capturing and determining the forces present at lifting means, and in particular at lifting rope, including the gravity weight force of the load attached to the lifting means, and of the pendulum angle of the lifting means, as well as furnishing a measurement value transducer for a pendulum balancing control system.
摘要:
Method for wirelessly transmitting control commands for a controller for lifting gear, wherein a wireless operating part has an unmistakeable address and a receiving part of the lifting gear has a selectable identifier, wherein the operating part is unambiguously assigned to a receiving part of lifting gear, said method comprising the following steps for assigning the operating part to the receiving part: (i) an address feature is formed from the address of the operating part and the identifier of the receiving part; (ii) the address feature is emitted in an allocation message; (iii) the emitted allocation message is received in the receiving part and (iv) the operating part is allocated to the receiving part, if the receiving part has not been allocated, by storing the address feature as a valid address feature in the receiving part, and corresponding system.