CN1409688A

CN1409688A - Elevator device

Info

Publication number: CN1409688A
Application number: CN00816963.2A
Authority: CN
Inventors: 石井敏昭
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2000-10-10
Filing date: 2000-10-10
Publication date: 2003-04-09
Anticipated expiration: 2020-10-10
Also published as: DE60035619T2; EP1325881A1; EP1325881A4; DE60035619D1; CN1220616C; EP1325881B1; JPWO2002030802A1; WO2002030802A1

Abstract

An elevator device, wherein a car is suspended, inside a hoistway, through a group of mani ropes including the main ropes formed of synthetic fiber ropes and the main ropes formed of steel ropes, and the number of steel ropes is set so as to be least necessary for supporting the maximum load only through the steel ropes.

Description

Lift appliance

Technical field

The present invention relates to form the lift appliance of the main push-towing rope group suspension craning cab of main push-towing rope by comprising synthetic fiber rope.

Background technology

In the past, for example special opening disclosed a kind of main push-towing rope that adopts synthetic fiber rope to form and made main push-towing rope weight-saving lift appliance in the flat 8-261972 communique.In this lift appliance, car is only suspended in midair by synthetic fiber rope.

For example, reality is opened and is disclosed a kind of lift appliance that disposes many fire monitoring devices in building or in the elevator lifting road, controls operation according to the output of these fire monitoring devices in the clear 63-45759 communique.

Fig. 5 is the pie graph of lift appliance one example in the past.In the drawings, Machine Room 2 is configured in the top of access trunk 1, and its inside is provided with actuating device (winch) 3, reaches deflector sheave 4.Actuating device 3 has the rope sheave of driving 3a.

Drive to scratch on rope sheave 3 and the deflector sheave 4 and hang with 1 group of main push-towing rope group 5.One end of main push-towing rope group 5 is being suspended car 6 in midair, and the other end is being suspended balance weight 7 in midair.Actuating device 3 makes car 6 and balance weight 7 lifting in access trunk 1.

The elevator lobby of each layer is provided with fire monitoring device 8a～8c respectively.For example, when detecting fire by fire monitoring device 8b, then detection signal passes to control setup (not shown), makes car 6 move on to the safe floor of nearest one deck or lower floor.

Fig. 6 is the lateral plan of actuating device 3 among Fig. 5, and actuating device 3 has the electrical motor 3b that drives rope sheave 3a, makes driving rope sheave 3a rotation, and is supported by bracing frame 10.Main push-towing rope group 5 has many main push-towing rope ropes 11 that drive on the rope sheave 3a around hanging over.All main push-towing ropes 11 are that synthetic fiber rope constitutes.

, the main push-towing rope 11 that synthetic fiber rope constitutes, resistance to effect of heat be than the general wirerope that uses was low in the past, therefore, in order to make car move to nearest one deck or safe floor 9 more reliably when the presence of fire, requires to improve the resistance to effect of heat of main push-towing rope group 5.

Detailed Description Of The Invention

The present invention studies for solving foregoing problems, Yi Bian purpose is the characteristic that obtains can utilize the synthetic resin hawser on one side, the lift appliance that main push-towing rope group resistance to effect of heat is improved.

Lift appliance of the present invention possesses the actuating device that drives rope sheave arranged, have around the 1 group of main push-towing rope group that drives many main push-towing ropes on the rope sheave and by the suspention of main push-towing rope group and by the car of actuating device lifting, the main push-towing rope that the main push-towing rope group comprises the main push-towing rope that is made of ferry rope, is made of wirerope.

The accompanying drawing simple declaration

Fig. 1 is the pie graph of the lift appliance main portion of embodiment of the present invention 1.

Fig. 2 is the block diagram of the ferry rope structure among Fig. 1.

Fig. 3 is the pie graph of the lift appliance main portion of embodiment of the present invention 2.

Fig. 4 is the pie graph of the lift appliance main portion of embodiment of the present invention 3.

Fig. 5 is the elevator pie graph of an example in the past.

Fig. 6 is the lateral plan of actuating device among Fig. 5.

Preferred forms of the present invention

Below, with reference to the suitable embodiment of description of drawings the present invention

Embodiment 1

Fig. 1 is the lift appliance main portion lateral plan of embodiment of the present invention 1, and the whole formation of lift appliance is the same with Fig. 5's.

In the drawings, actuating device 3 has the electrical motor 3b that drives rope sheave 3a, driving rope sheave 3a is rotated and is supported by bracing frame 10, and the main push-towing rope group drives on the rope sheave 3a around being hung on, and car 6 and balance weight 7 (Fig. 5) are suspended in the access trunk 1 by main push-towing rope group 31.

1 main push-towing rope that main push-towing rope group 31 comprises many main push-towing ropes being made of ferry rope (below, abbreviate ferry rope as) 12, be made of steel cable (below, abbreviate wirerope as) 13.The diameter d 2 of wirerope 13 is not more than the diameter d 1 (d2≤d1) of ferry rope 12.The number of steel cable 13 is only set for and is supported the Min. that peak load is used by steel cable 13, is 1 here.

Fig. 2 is the block diagram of ferry rope 12 structures of Fig. 1.In the drawings, dispose inner rope strand layer 24 around the heart yearn 21, the filling rope strand 23 that it has many inner rope strands 22 and is configured in these inner rope strand 22 gaps.Each inner rope strand 22 is to be made of impregnated materials such as many aramid fibres and polyurethane.Filling rope strand 23 for example constitutes with polyamide.

Inner rope strand layer 24 periphery dispose the outer strand layer 26 of many outer strand 25.Each outer strand 25 and inner rope strand 22 are same, are to constitute with impregnated materials such as many aramid fibres and polyurethane.

The configuration friction reduces clad between inner rope strand layer 24 and the outer strand layer 26, avoids rope strand 22,25 phase mutual friction and abrasion of the rope strand 22,25 that causes on rope sheaves such as driving rope sheave 3a.The peripheral part configuration protection clad 28 of outer strand layer 26.Compare ferry rope friction coefficient height, pliability excellence with steel cable.

In the aforesaid lift appliance, main push-towing rope group 31 contains many (embodiment 1 is 3) ferry ropes 12 and 1 wirerope 13, therefore, and contingency ferry rope 12 fusing during fire, perhaps during friction heat equivalent damage ferry rope 12, can not fuse yet, keep with damaging wirerope 13.

Usually, the intensity of the main push-

towing rope

12,13 of lift appliance, requiring has the safety factor of 10 times of degree, even only also can continue suspending car 6 and balance weight 7 in midair with wirerope 13, makes car 6 move on to nearest one deck or safe floor 9.Thereby, utilize the characteristic of synthetic resin cable 12, main push-towing rope group 31 single-piece resistances to effect of heat are improved.

And, in the past wirerope require be, the diameter D that drives rope sheave 3a compares with cable diameter d, D/d should be not less than 40., in the occasion of ferry rope 12,, can reduce D/d because of its characteristic.Thereby, drive little that the diameter of rope sheave 3d can be than in the past, thereupon, the diameter d 1 of wirerope 13 is just less than the diameter d 1 of ferry rope 12.

In addition, though wirerope 13 also can be set more than 2, support the necessary Min. of peak load owing to only make by wirerope 13, so can give full play to the characteristic of synthetic resin cable 12.

Embodiment 2

Fig. 3 is the pie graph of the lift appliance main portion of embodiment of the present invention 2.In the drawings, driving rope sheave 3a goes up around hanging main push-towing rope group 32.Main push-towing rope group 32 contains ferry rope 12 and 1 wirerope 13 of many (being 4) here.The number of ferry rope 12 is only set for by ferry rope 12 and is realized intensity in the 32 desired designs of main push-towing rope group.

That is, main push-towing rope group 32 integral intensity are that wirerope 13 is extra additional, is the state that load can not act on wirerope 13 when moving usually.Certainly, wirerope 13 has only with the intensity more than the necessary Min. of its supporting peak load.Other formations are same with embodiment 1.

Adopt like this to constitute, when moving usually, can attenuative effect in the load of wirerope 13, and can give full play to the characteristic of synthetic resin cable 12.

Embodiment 3

Fig. 4 is the pie graph of the lift appliance main portion of embodiment of the present invention 3.In the drawings, drive rope sheave 3a and be fixed with as the plate washer 33 that keeps off oily device, prevent that the oil that wirerope 13 contains from splashing attached on the ferry rope 12, baffle plate 33 is configured between the wirerope 13 usefulness cable grooves and ferry rope 12 usefulness cable grooves that drive rope sheave 3a.

Dispose the hawser cover 34 as the oily device of retaining around driving rope sheave 3a, it allows 3a rotation of driving rope sheave and wirerope to move, and prevents that the oil that wirerope 13 contains from splashing attached on the ferry rope 12.Other formations are the same with embodiment 2.

Here, wirerope 13 has the rope made of hemp core of oil-containing, during especially by driving rope sheave 3a, compression load is imposed on wirerope 13, and being subjected to the effect of rotary centrifugal force, the oil in the wirerope 13 might splash towards periphery, like this, when oil splashes when being attached on the ferry rope 12, then produce the abnormal conditions of tractive force reduction etc.

To this, baffle plate 33 and hawser cover 34 are set in the embodiment 3, can prevent more reliably that oil is attached on the ferry rope 12.

Though use 2 kinds of oily devices of retaining in the embodiment 3, i.e. plate washer 33, hawser cover 34, if can prevent oil attached to ferry rope 12, any device only is set can.

In the embodiment 1～3, illustration the lift appliance of 1: 1 rope strand mode, if with the lift appliance of the main push-towing rope group suspension craning cab that contains ferry rope, then this invention can be applicable to all types of lift appliances.

Claims

1. lift appliance, possess be provided with the actuating device that drives rope sheave, be provided with around the 1 group of main push-towing rope group that hangs over many main rope on the described driving rope sheave and by described main push-towing rope group suspention, by the car of described actuating device lifting, it is characterized in that,

The main push-towing rope that described main push-towing rope group contains the main push-towing rope that is made of ferry rope, is made of steel cable.

2. lift appliance as claimed in claim 1 is characterized in that, described wirerope number is only set the Min. of necessity of being used by described wirerope supporting peak load for.

3. lift appliance as claimed in claim 1 is characterized in that the diameter of described steel cable is less than the diameter of described ferry rope.

4. lift appliance as claimed in claim 1 is characterized in that, described ferry rope number is only set for by described ferry rope and realized intensity in the design that described main push-towing rope group requires.

5. lift appliance as claimed in claim 1 is characterized in that, is provided with at the periphery of described driving rope sheave and prevents that oil that described wirerope contains is attached to the oil of the retaining on described ferry rope device.