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elevator equipment

A kind of equipment and elevator technology, applied in the direction of hoisting device, etc., can solve the problems of lifting body braking and failure to obtain braking force, etc., and achieve the effect of improving safety

Active Publication Date: 2017-03-01
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the brake shoe of the upper braking part is pressed against the damaged and heated guide rail, there is a problem that sufficient braking force cannot be obtained. Therefore, in the emergency braking device of the existing elevator equipment, there is It is difficult to reliably brake the lifting body according to the specified braking distance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0022] figure 1 It is a perspective view which shows the elevator apparatus concerning the 1st Example of this invention. The elevator equipment has a lifting body (such as an elevator car 1) that can be lifted and lowered in the elevator passage, four guide rails 2 that are vertically arranged in the elevator passage to guide the elevator car 1 to go up and down, a sling 3 that is connected to the elevator car 1 at one end, And an emergency braking device 4, the emergency braking device 4 is arranged on the lower part of the elevator car 1, and is used for braking the elevator car 1 in an emergency. The elevator car 1 has a doorway 7 and a guide device (not shown), and moves up and down along the guide rail 2 under the guidance of the guide device. The other end of the sling 3 is connected to an unillustrated counterweight. The emergency brake device 4 has four brake parts 40 and connecting members (connecting body, linkage mechanism, and parallel linkage mechanism) for con...

no. 2 example

[0041] The elevator installation according to the second embodiment of the present invention is an elevator installation in which two governors 5 are provided in addition to the elevator installation according to the first embodiment.

[0042] Figure 5 It is a side view schematically showing the outline of the elevator apparatus of this embodiment, showing two speed governors 5a, 5b and two brake parts 40a, 40b located at the lower right side of the elevator car 1. The elevator apparatus of this embodiment has two speed governors 5a, 5b, the speed governor rope 51a is wound around the speed governor 5a, and the speed governor rope 51b is wound around the speed governor 5b. The connecting body 6a is connected to the speed governor rope 51a, and the connecting body 6b is connected to the speed governor rope 51b. The connecting body 6a is connected to the lifting part 42 of the braking part 40a, and the connecting body 6b is connected to the lifting part 42 of the braking part ...

no. 3 example

[0048] The elevator installation according to the third exemplary embodiment of the invention has three guide rails 2 and an emergency braking device 4 with three braking sections 40 .

[0049] Figure 6 It is a perspective view which shows the elevator apparatus concerning this Example. exist Figure 6 in, with figure 1 the same symbol as figure 1 the same or common parts, and repeated descriptions of these parts are omitted.

[0050] The guide rails 2 are arranged on three sides of the elevator car 1 except the side with the entrance and exit 7, and each side is provided with a guide rail. That is to say, one guide rail 2 is respectively arranged on the right side, the rear side and the left side of the elevator car 1 . The position of the guide rail 2 in the right side, the rear side and the left side of the elevator car 1, as described in the first embodiment, is considered when the elevator car 1 is suspended by the sling 3. It is determined when the degree of balan...

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Abstract

The invention provides elevator equipment. The elevator equipment is high-speed large-capacity elevator equipment and can really perform braking on an elevator according to a specified distance in an emergency. The elevator equipment is provided with guide rails, a lifting body lifting along the guide rails and provided with a passageway, emergency braking devices arranged on the lifting body, and a speed regulator. The speed regulator is winded with a speed regulator rope, each emergency braking device is provided with a braking part, and each braking part is provided with brake shoes capable of being in sliding contact with the corresponding guide rail. When emergency braking is performed, the brake shoes contact the guide rails in a sliding manner to brake the lifting body. The elevator equipment is further provided with connecting members. The number of the guide rails is more than three, the guide rails are arranged on other multiple side faces of the side faces, except for the side face provided with the passageway, of the lifting body, one braking part is arranged corresponding to each guide rail, and at least two braking parts of the braking parts are connected to each other through the connecting members.

Description

technical field [0001] The invention relates to an elevator installation. Background technique [0002] In high-speed and large-capacity elevator equipment, when an emergency occurs, it is necessary to brake a lifting body such as an elevator car according to a predetermined braking distance. Patent Document 1 discloses a prior art for emergency braking of the lifting body according to a specified braking distance. The elevator emergency braking device disclosed in Patent Document 1 is a device installed on the elevator car or counterweight. On the left and right sides, when an abnormality occurs, an elevator emergency braking device that makes an emergency stop of the elevator car or the counterweight, the elevator emergency braking device is characterized in that it is located on the left and right sides of the elevator car or the counterweight along the upper and lower Directly install a plurality of emergency braking devices connected directly or through installation ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D5/22
Inventor 大森贡
Owner HITACHI LTD