Method and device for the power supply for rack and pinion lifts
A technology for power supply, elevators, used in elevators, elevators in buildings, transportation and packaging, etc.
Active Publication Date: 2014-01-01
ALIMKAK AB
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- Abstract
- Description
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- Application Information
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Problems solved by technology
The second purpose is to achieve a method of power supply capable of solving the problem regarding the three-phase power lines extending from the unit on ground level to the elevator car
Method used
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[0025] refer to Figure 3-5 , showing an elevator system with a rack and pinion elevator for passenger or cargo transportation. The elevator comprises a load carrier (in the form of an elevator car 107 ) capable of being driven by a drive unit, said load carrier comprising a motor 109 and along a track (in the form of a mast equipped with a toothed rod 112 ) with and belt Transmission arrangement of rotatable shafts interacting with gears 111 (see Figure 1a ). The motor 109 is a three-phase type motor having a rated voltage of, for example, 380-500V and a frequency of 50 or 60 Hz. Figure 3-5 The current configuration for the power supply is shown in , which is incorporated into the figure 1 and two prior art designs shown in 2 as part of this design, also for figure 1 and 2 for reference.
[0026] An energy storage system is part of the present power supply arrangement generally indicated by the reference number 10 and is supported by the elevator car 107 and is designe...
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The invention concerns a method and an arrangement for the power supply for a lift of the type in which drive machinery (109) is supported by a load carrier (107) and can drive the load carrier in a first and a second direction along a track along an essentially vertical mast (110) by means of the interaction between a cogged wheel (111) and cogged rod (112). In order to reduce the requirement for external power and in this way to reduce the costs of the power supply system of the lift as a whole, the method is proposed according to that a load carrier (107) is arranged, that the load carrier (107) is arranged to support an electrically operated electric motor (109) that is a component of the drive machinery, which electric motor is selected such that it generates a flow of energy during regenerative operation, that the electric motor (109) is arranged such that it can drive the load carrier (107) in the first direction along the track and can drive the load carrier during inverse regenerative operation to generate a flow of energy during braking and motion in the second direction along the track, that the load carrier (107) is arranged to support an energy storage system (10) that includes an energy store (60) designed to store, receive and release electrical energy, that the load carrier (107) is provided with a first current-transfer bus (11) that allows the energy flow that is emitted from the electric motor (109) during braking and regenerative operation to be transferred from the electric motor to the energy store (60) that is part of the energy storage system (10) and, when necessary, to be inversely transferred from the energy store to the drive motor, and that the load carrier (107) is arranged to increase its potential energy during acceleration or motion upwards along the mast through the influence of energy that has been obtained from the energy store (60).
Description
technical field [0001] The invention relates to a method for the power supply of a rack and pinion lift as introduced in claim 1 . The invention also relates to a device for the power supply of a rack and pinion elevator according to claim 10 . Background technique [0002] The power required to drive a device such as an elevator used to transport people or goods between floors of a building varies due to factors such as the momentary load on the elevator, elevator speed, direction of travel, and the transfer cycle the elevator is currently operating in which part of . It is important to keep power requirements as low as possible, not only to reduce the installation and operating costs of the lift, but also to reduce the size and space required for the lift's power supply system. Rack and pinion elevators generally comprise a load carrier such as an elevator car that can be driven by a motor and a cogged wheel along a track, usually in the form of a mast provided with a co...
Claims
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Login to View More IPC IPC(8): B66B9/02B66B1/30
CPCB66B11/005B66B11/0461B66B9/16B66B1/302
Inventor 拉尔斯·塞德布拉德容尼·埃利阿松
Owner ALIMKAK AB