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Hoist and elevator

A hoist and elevator car technology, applied in the field of elevators, can solve problems such as deterioration of elastic components, damage of magnets, adverse effects of rotor magnet retention, etc., and achieve the effect of preventing damage and maintaining reliably

Active Publication Date: 2016-03-02
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when the rotor assembly is pressed by the braking mechanism, the rotor assembly deforms
Therefore, in the technique described in Patent Document 1, the deformation of the rotor assembly is repeated, thereby deteriorating the elastic member interposed between the rotor magnet and the back yoke, which may adversely affect the retention of the rotor magnet, that is, the magnet.
[0009] In addition, the deformation of the rotor assembly may apply stress to the magnets fixed to the rotor assembly, resulting in damage to the magnets

Method used

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Examples

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Effect test

no. 1 approach example

[0032] 1-1. The structure of the elevator

[0033] First, refer to figure 1 The structure of the elevator which concerns on the 1st Embodiment example (henceforth "this example") of this invention is demonstrated.

[0034] figure 1 It is a schematic block diagram which shows the structural example of the elevator of this example.

[0035] like figure 1 As shown, the elevator 1 of this example performs the raising / lowering operation in the lift passage 110 formed in the building structure. The elevator 1 includes an elevator car 120 on which people and goods are loaded, a sling 130 , a counterweight 140 , and a hoisting machine 100 . The lift tunnel 110 is formed in the building structure, and a machine room 160 is provided at the top thereof.

[0036] The hoisting machine 100 is arranged in the machine room 160, and the elevator car 120 is moved up and down by winding the sling 130. In addition, the deflector pulley 150 for bridging the suspending rope 130 is provided in...

no. 2 approach example

[0065] Next, refer to Image 6 as well as Figure 7 A second embodiment example of the elevator of the present invention will be described.

[0066] Image 6 It is an enlarged cross-sectional view showing the main part of the hoisting machine in the elevator of the second embodiment, Figure 7 This is a cross-sectional view showing a state during braking.

[0067] The elevator of the second embodiment is different from the elevator 1 of the first embodiment in the structure of the rotor assembly of the hoisting machine. Therefore, the rotor assembly will be described here, and the same reference numerals are assigned to the parts common to the elevator 1 according to the first embodiment, and overlapping descriptions will be omitted.

[0068] like Image 6 As shown, a fixing portion 40 for fixing the magnet 31 is provided on the rotor assembly 44 . The fixing part 40 has a fixing surface 40a and an inclined surface 40b. The corner portion 45 where the fixed surface 40a ...

no. 3 approach example

[0072] Next, refer to Figure 8 as well as Figure 9 A third embodiment example of the elevator of the present invention will be described. Figure 8 It is an enlarged cross-sectional view showing the main part of the hoisting machine in the elevator of the third embodiment, Figure 9 This is a cross-sectional view showing a state during braking.

[0073] The elevator of this third embodiment is different from the elevator 1 of the first embodiment in the structure of the rotor assembly of the hoisting machine. Therefore, the rotor assembly will be described here, and the same reference numerals are assigned to the parts common to the elevator 1 according to the first embodiment, and overlapping descriptions will be omitted.

[0074] like Figure 8 As shown, the fixed portion 50 in the rotor assembly 54 has a fixed surface 50a and an inclined surface 50b. Moreover, the inclination angle of the inclined surface 50b in the fixing|fixed part 50 is set to the angle different ...

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PUM

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Abstract

The invention provides a hoist and an elevator. The hoist can prevent the magnet from being damaged and can hold the magnet reliably. A fixed part (10) of the hoist (100) comprises a fixed surface (10a) for pasting a surface (31c) of the magnet (31), and an inclined surface (10b) inclining along the direction from the fixed surface (10a) to the axial center of a main shaft (3) far away from aconnecting part (8). The magnet (31) compriese a surface (31a) arranged opposite to the inclinded surface (10b) and inclinging along the same direction with the inclined surface (10b).

Description

technical field [0001] The present invention relates to a hoisting machine including a hoisting machine for raising and lowering an elevator car, and an elevator including the hoisting machine. Background technique [0002] Conventionally, an elevator includes an elevator car, a counterweight, a sling that connects the elevator car and the counterweight, and a hoist that winds the sling. The hoist has a main shaft, a sheave that is rotatably supported on the main shaft and on which a sling is wound, and a rotor assembly connected to the sheave. A magnet facing the stator is fixed to the inner peripheral surface of the rotor assembly. The magnets are positioned by abutting against right-angled corners provided on the rotor assembly. In addition, for safety reasons, the hoist is provided with a braking mechanism that presses the rotor assembly and brakes the driving of the rotor assembly. [0003] In addition, in the technique described in Patent Document 1, there is descri...

Claims

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Application Information

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IPC IPC(8): B66B11/04
Inventor 尾方尚文小野哲志小松辽
Owner HITACHI LTD
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