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Elevator

A technology for elevators and elevator cars, applied to circuits, elevators in buildings, electrical components, etc., can solve problems such as no effect, achieve the effect of stabilizing the comfort of taking the elevator and suppressing longitudinal vibration

Inactive Publication Date: 2011-08-17
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is also the disadvantage that if an extrinsic excitation different from the target frequency is applied, it has no effect

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0049] First, a first embodiment of the present invention will be described.

[0050] figure 1 It is a figure which shows the outline of the structure of the elevator in 1st Embodiment of this invention.

[0051] This elevator uses a 2:1 single-winding hanging rope, and the elevator car 1 is suspended from the car pulleys 2 and 2a wound on the main rope 3 . The main rope 3 is wound around the balance weight pulleys 6, 6a via the car pulleys 2, 2a and the hoisting machine pulley 5a. The balance weight 7 is suspended from the balance weight pulleys 6, 6a.

[0052] The elevator car 1 is connected to a balance weight 7 via main ropes 3 wound around a hoisting machine pulley 5 a provided on a motor shaft of the hoisting machine 5 . The elevator car 1 moves up and down in vertically opposite directions together with the balance weight 7 in accordance with the rotation of the hoisting machine pulley 5 a caused by the driving of the hoisting machine 5 .

[0053] The vibration syst...

no. 2 Embodiment approach

[0071] Next, a second embodiment of the present invention will be described. In addition, in the structure of the elevator related to each embodiment below, it is the same as figure 1 The descriptions of the parts having the same content as those shown will be omitted.

[0072] Figure 4 It is a figure which shows the outline of the structure of the elevator in 2nd Embodiment of this invention.

[0073] Such as Figure 4 As shown, compared with the first embodiment, the elevator in the second embodiment of the present invention includes a counterweight 20 instead of the counterweight 7 as a dynamic shock absorber.

[0074] Figure 5 It is a figure which shows an example of the internal structure of the counterweight of the elevator in 2nd Embodiment of this invention.

[0075] In this embodiment, if Figure 5 As shown, the mass system of the balance weight 20 is composed of a balance adjustment weight 20a, a first dynamic damper weight 20b, and a second dynamic damper we...

no. 3 Embodiment approach

[0087] Next, a third embodiment of the present invention will be described. Figure 7 It is a figure which shows the outline of the structure of the elevator in 3rd Embodiment of this invention.

[0088] Such as Figure 7 As shown, the elevator in the third embodiment of the present invention further includes a car vibration detection device 31 that detects the vibration value of the car 1 compared to the first embodiment. A signal indicating the detection result of the car vibration detection device 31 is input to the microcomputer 13c through signal processing by the amplifier 13a and the filter 13b of the control device 13 of the energy regenerative shock absorber 9 .

[0089] Figure 8 It is a flowchart showing an example of the processing operation related to the elevator car vibration suppression in the third embodiment of the present invention.

[0090] In this embodiment, the processing from the generation of in-phase vibration during the vertical movement of the co...

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Abstract

The present invention relates to an elevator which is characterized by comprising: a balance weight (7) hung on a pulley and connected with an elevator cage, a performer (10) converting vibration energy into electrical energy, a dynamic shock absorber (7b) comprising a dynamic shock absorber hanging balance weight hung on the balance weight by a spring component (8) and the performer, an electrical storage device (11) for storing electric power, an electrical storage control part (13d) for storing the electrical energy of the performer of the dynamic shock absorber converted from the longitudinal vibration energy of the elevator cage into the electrical storage device, and a vibration control part (13e) for vibrating the performer by using the electrical energy stored in the electrical storage device according to the running condition of the elevator cage, so as to change of vibration frequency of the dynamic shock absorber balance weight into a value that is consistent or similar to the natural vibration frequency of the vibrating system of the elevator.

Description

technical field [0001] The present invention relates to an elevator having a function of suppressing vibration of an elevator car. Background technique [0002] Conventionally, generally, if the frequency generated by the external excitation is close to the resonance frequency of the vibration system of the elevator, the entire system will be in a resonance state and become an unstable state. If the vibration generated by the operation of the elevator is close to the natural vibration frequency of the system, the vibration will be aggravated, which will greatly affect the comfort of the elevator. [0003] The first method to solve this problem is to shift the natural vibration frequency to the high-frequency region by changing and strengthening the structure of the system, so as to deviate from the frequency of the external vibration received during driving. This improves ride comfort and provides a robust system. [0004] The second method is to divide the balance weight ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00B66B11/02H01M10/46
CPCY02E60/10
Inventor 松冈宽晃
Owner TOSHIBA ELEVATOR KK
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