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Hoisting machine device for elevator

A hoist and elevator technology, which is applied to elevators, transportation and packaging in buildings, etc., can solve the problem of not being able to give full play to the cooling effect, and achieve the effect of effective cooling

Inactive Publication Date: 2008-03-12
HITACHI LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the cooling effect cannot be fully exerted when a conventional motor consisting of a blade-shaped sheave and a brake drum is used on this type of hoist.

Method used

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  • Hoisting machine device for elevator
  • Hoisting machine device for elevator
  • Hoisting machine device for elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Embodiments of the hoisting machine device for an elevator according to the present invention will be described below with reference to the drawings.

[0025] Fig. 1 is a side view showing an embodiment of an elevator hoist device according to the present invention, Fig. 2 is a front view of the hoist device, Fig. 3 is a front view of a sheave, Fig. 4 is a side view of a sheave, and Fig. 5 is The top view of the sheave at the A-A line of Fig. 3.

[0026] As shown in FIGS. 1 and 2 , the hoist device of this embodiment includes: a hoist 1 composed of a permanent magnet motor; wheel 2; the brake drum 3 which is arranged on the other outer side of the winch 1 and fits with the rotating shaft 1a of the winch 1; and covers the winch 1 with a certain gap, and its two ends face the sheave 2 and The brake drum 3 is an open hood 4 , and a rope connected to a lifting body (not shown) is wound around the sheave 2 , and the lifting body is raised and lowered by applying a driving f...

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PUM

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Abstract

The present invention provides an elevator windlass device which can increases the cooling effect. A rope pulley (2) and a brake drum (3) are arranged at the external position of the windlass with the mode of inosculating respectively to the rotating axis (19) of the windlass (1), and the arm part which extends radially from the hub part to the circular rim part on the rope pulley and the brake drum (3) thereby obtaining an air supplying function, wherein, the permanent-magnet electric motor adopting the rotor which is made of the permanent magnet and the stator opposite to the rotor works as the windlass, the windlass is provided with a hood which covers the windlass with a definite separating clearance and the two sides of which are open to the rope pulley and the brake drum (3), the wind which is generated in the guiding of the hood (4) to the rope pulley and the rotating of the brake drum (3) is send to the clearance between the windlass and the hood (4), the wind diffusing can be prevented at the same time the wind flow velocity can be increased and further the cooling effect can be increased.

Description

technical field [0001] The present invention relates to a hoist device for an elevator that winds a sling around a sheave to pull a load. Background technique [0002] In recent years, elevators without a machine room have become mainstream elevators. In this type of elevator without a machine room, the hoist is arranged in the hoistway. For this reason, it is necessary to further miniaturize the hoist, however, with the development of miniaturization of the hoist, there has been a problem that the temperature of the hoist has risen. In order to alleviate the temperature rise of such a hoist, as a conventional technology, for example, Japanese Patent Application Laid-Open No. 61-55080 of Patent Document 1 discloses a scheme in which the rotating shafts of the hoist are respectively fitted with Set the sheave at one of the two outer positions of the hoisting machine in a combined manner, and set the brake drum at the other outer position, while the sheave and the brake drum ...

Claims

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Application Information

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IPC IPC(8): B66B11/04B66B11/08
Inventor 中岛豪岛田通利福田治彦
Owner HITACHI LTD