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Elevator system

A technology of elevator system and elevator car, which is applied to elevators, textile cables, transportation and packaging in buildings, etc. It can solve the problems of increasing the height and dimension of the lifting passage, and achieve the effect of reducing the height dimension and reducing the cross-sectional area of ​​the passage

Inactive Publication Date: 2014-12-31
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the hoist is installed above the counterweight, it is necessary to ensure the installation dimensions of these components, so the height of the hoistway will also increase.

Method used

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Examples

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Effect test

no. 1 example

[0036] Hereinafter, the configuration of an elevator according to an embodiment of the present invention will be described with reference to the drawings. First refer to figure 1 and figure 2 Give a rough explanation.

[0037] In a general elevator, the main rope 3 is used to connect the elevator car 1 and the counterweight 2, and the hoist 5 is installed in the middle of the main rope 3, and the main rope is hoisted by the hoist 5, and the hoist The action causes the elevator car 1 and the counterweight 2 to go up and down in opposite directions.

[0038] The main sling 3 of this embodiment uses two pairs of main slings, and a spring 31 for tension adjustment is provided at one end 30a of the main sling 3, and is suspended on a beam 32 fixed to the wall of the hoistway. In addition, the other end 30b of the main sling 3 is also provided with a spring 31 for tension adjustment, and is similarly suspended on a beam 32 fixed to the wall of the hoistway.

[0039] The top of ...

no. 2 example

[0076] Refer to the following Figure 4 Elevators according to other embodiments of the present invention will be described in detail. and figure 2 The embodiment shown differs in that in this embodiment the pulleys 6a and 6b of the pulleys 6 arranged at the top of the elevator car 1 form a set and another set of pulleys is arranged at a distance That is, pulley 6c and pulley 6d.

[0077]Moreover, the sheave 9a and the sheave 9b of the hoisting machine 5a and the hoisting machine 5b are also installed in the beam 32 so that it may be spaced apart according to this predetermined distance.

[0078] The main rope 3a passes through the pulley 6a and the pulley 6b, the main rope 3b passes through the pulley 6c and the pulley 6d, and the main rope 3a and the main rope 3b are wound on the hoisting machine 5a and the sheave 9a and the sheave 9b of the hoisting machine 5b.

[0079] According to the above structure, the distance between the main rope 3a and the main rope 3b can be s...

no. 3 example

[0082] Refer to the following Figure 5 and Figure 6 An installation example of the hoist 5a and the hoist 5b at the upper portion of the hoistway according to yet another embodiment of the present invention will be described.

[0083] exist Figure 1 to Figure 3 In the illustrated embodiment, the hoist 5a and the hoist 5b are fixed to the beam 32 in a state facing each other, so that the axial lengths of the hoist 5a and the hoist 5b are added together, so that the horizontal length of the hoist 5 becomes longer.

[0084] In contrast, the present embodiment is characterized in that a structure for reducing the lateral length (axial length) of the hoist 5 is proposed. In order to shorten the overall axial length L of the hoist 5, the hoist 5a and the hoist 5b are arranged as Overlap in the height direction.

[0085] Two hoisting machines, that is, hoisting machine 5a and hoisting machine 5b, are arranged to be staggered by a specified amount in the motor axial direction, a...

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Abstract

When a winch protrudes from a counter balance, it is necessary to correspondingly expand the cross section of a hoist trunk along the horizontal direction, and when the winch is arranged on the upper part of the counter balance, it is necessary to increase the height of the hoist trunk, thus it is necessary to synthetically study on the above problems, thus an elevator with reduced cross area of the hoist trunk and lowered height of the hoist trunk is provided. A pulley is respectively arranged on an elevator cab and the counter balance, the 2:1 sling winding way is used, and a main sling with flexibility and a rope pulley in the ratio of the diameter D of the rope pulley to the diameter d of the main sling being smaller than 20, are used for connecting the elevator cab with the counter weight, and the winch is fixed on a beam on the upper side of the counter weight, and the counter weight is made towards the direction along which a rotation axle of the winch is parallel to a long edge of the counter weight.

Description

technical field [0001] The present invention relates to an elevator system, in particular to an elevator car and a counterweight connected by a main sling, and the main sling is hoisted by a sheave of a winch, relying on the friction between the main sling and the sheave. An elevator system that raises and lowers an elevator car. Background technique [0002] Generally speaking, an elevator system (hereinafter referred to as "elevator") is usually driven by traction. In an elevator employing this traction method, the elevator car and the counterweight are suspended by the main rope, and the main rope is hoisted by the winch, thereby moving the elevator car and the counterweight up and down in opposite directions. [0003] In recent years, the elevator without a mechanical room has gradually become the mainstream elevator. The main feature of the elevator without a mechanical room is that the hoist is arranged in the hoistway. This type of elevator without a machine room ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B11/04B66B7/00B66B7/06D07B1/06D07B1/16
Inventor 野口直昭安部贵
Owner HITACHI LTD
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