CN101565141B - Elevator device - Google Patents

Abstract

The invention provides an elevator device capable of fixing a speed detecting unit on a governor without needing to broaden dimension of the hoist trunk. The tension pulley (13) is fixed at the lower of a contact position of the elevator cage (8) and a buffer in the elevator shaft (50), and has a U-shaped support (20), wherein one end of the U-shaped support is installed on a support (19) of a fixed axis (18) of the tension pulley (13), and the other end spans above the tension pulley (13) and lies a inverse side of the extrusion side of the fixed axis (18). Furthermore, a connecting element (22) is fixed on the tension pulley (13), the connecting element (22) has a rotating axle (24) protruding to the inverse side of the fixed axis, and the other end has an encoder (16) for detecting position or speed of the elevator cage by detecting rotation of the rotating axle (24).

Description

Lift facility

Technical field

The present invention relates to a kind of lift facility, especially relate to a kind of lift facility with detecting device of the position of detecting lift car or speed.

Background technology

As existing lift facility, a kind of lift facility is for example disclosed in patent documentation 1, it has by the roller that contacts with governor sheave and detects the position of lift car or the detecting device of speed (for example with reference to patent documentation 1), in addition, for example disclose a kind of lift facility in patent documentation 2, it has and the coaxial mounted detecting device (for example with reference to patent documentation 2) that is used to detect elevator car position or speed of governor sheave.

Patent documentation 1 Japanese kokai publication hei 6-144734 communique

Patent documentation 2 Japan open clear 61-154267 communique in fact

The quantity constantly increase of the so-called machine room-less elevator of Machine Room is not set in recent years.In this machine room-less elevator, with respect to the oad of lift car, dwindle the size of hoist trunk as much as possible, dwindle the amplitude of hoist trunk with this, do the characteristics that can bring into play machine room-less elevator to greatest extent like this.And, in machine room-less elevator, usually governor is arranged on the position of staggering with lift car in the hoist trunk.

For this reason, if when as above-mentioned prior art, being arranged on speed detection unit on the governor, under the narrower situation of hoist trunk, possibly can't fully guarantee gap between gap between the lift car of hoist trunk and lifting therein and hoist trunk and the interior equipment of other hoist trunk, at this moment, must strengthen the size of hoist trunk.

Summary of the invention

The object of the present invention is to provide a kind of size that does not need to widen hoist trunk that the lift facility of speed detection unit just can be set on governor.

To achieve these goals, the invention provides a kind of lift facility, this lift facility has: the lift car of lifting in hoist trunk; The ring-type speed controller rope, it is connected with emergency braking device on being installed in this lift car, and along with the lifting of lift car is moved together; Tension roller, it applies tension force to this speed controller rope; Anchor shaft, it supports this tension roller by bearing; Pouring weight, it is installed in the outstanding side of this anchor shaft; And governor, when lift car has surpassed specified speed, this governor is controlled speed controller rope, make the emergency braking device action thus, in this lift facility, tension roller is arranged on the below of the position that lift car and the energy disperser that is arranged in the elevator hole come in contact, and be provided with U font support, one end of this U font support is installed on the support on the anchor shaft that is arranged on tension roller, the other end is crossed over the top of tension roller and is positioned at the opposition side of the outstanding side of anchor shaft, in addition, tension roller is provided with adapter shaft, this adapter shaft has towards the outstanding S. A. of the opposition side of anchor shaft, and the rotation that has by detecting S. A. at the other end of U font support detects the position of lift car or the coder of speed.

The invention effect

Owing to tension roller is arranged on the below of the position that lift car and the energy disperser that is arranged in the elevator hole come in contact, and be provided with U font support, one end of this U font support is installed on the support on the anchor shaft that is arranged on tension roller, the other end is crossed over the top of tension roller and is positioned at the opposition side of the outstanding side of anchor shaft, in addition, tension roller is provided with adapter shaft, this adapter shaft has towards the outstanding S. A. of the opposition side of anchor shaft, and, the rotation that has by detecting S. A. at the other end of U font support detects the position of lift car or the coder of speed, so governor can not disturb with other equipment in the hoist trunk, the problem of the feasible size that must widen hoist trunk etc. can be resolved.

Description of drawings

Fig. 1 is the integral structure figure of the lift facility of expression an embodiment of the present invention.

Fig. 2 is the governor of presentation graphs 1 and the hoist trunk longitudinal sectional drawing of the relation of the position between the lift car.

Fig. 3 is the details drawing of tension roller part, and it is the section-drawing at the A place of Fig. 1.

Nomenclature

The driving rope sheave of 1 winch

2 main hoist cables

3～7,11 pulleys

8 lift cars

9 counterbalanceds weight

10 governors

12 speed controller ropes

13 tension rollers

14,15 emergency braking devices

16 coders

17 bearings

18 anchor shafts

19 supports

20U font support

22 transoms

24 S. A.s

25 protective cases

30 energy dispersers

40 hoist trunk tops

50 elevators hole

100 hoist trunks

The specific embodiment

With reference to accompanying drawing embodiments of the present invention are described.

Fig. 1 is the integral structure figure of the lift facility of expression an embodiment of the present invention, Fig. 2 is the governor of presentation graphs 1 and the hoist trunk longitudinal sectional drawing of the relation of the position between the lift car, Fig. 3 is the details drawing of tension roller part, and it is the section-drawing at the A place of Fig. 1.

In lift facility shown in the drawings, main hoist cable 2 is wound on the driving rope sheave 1 of winch, and lift car 8 is connected by the two end portions of pulley 3～7 with main hoist cable 2 with counterbalanced weight 9, forms the sus-pension of bucket type.In addition, drive rope sheave 1 rotation, the main hoist cable 2 that is wound on the driving rope sheave 1 is moved, thereby make lift car 8 carry out lifting along not shown guide rail by making.30 expression energy dispersers, 10 expression governors.Be wound with ring-type speed controller rope 12 on the pulley 11 of this governor 10, be provided with tension roller 13 in the lower end of this speed controller rope 12, described tension roller 13 is arranged on the below of the position that lift car 8 and the energy disperser 30 that is arranged in the elevator hole 50 come in contact.

The part of lift car 8 and speed controller rope 12 is connected by the not shown brake rod that is used to mention emergency braking device 14,15, when normal operation, speed by lift car 8 is rotated driving to the pulley 11 of governor 10, and in the speed that detects lift car when unusually having surpassed the speed of regulation, make the brake rod action by speed controller rope 12, thereby make emergency braking device 14,15 actions, lift car 8 is promptly stopped.Have on the tension roller 13 and be used for detecting the position of lift car or the detecting device of speed is a coder 16.

Followingly the mounting structure of this coder 16 is elaborated with reference to Fig. 3.

Tension roller 13 is supported by anchor shaft 18 by bearing 17.The outshot of this anchor shaft 18 is by support 19 supportings, and this support 19 is installed on the not shown support, can be rotated or can be free to slide at above-below direction, and wherein this not shown support is fixed on the not shown track.For speed controller rope 12 is applied tension force, not shown pouring weight (weight) is installed on the support 19.In addition, an end of U font support 20 is fixed on this support 19 by bolt 21, and the other end of this U font support 20 is positioned at the opposition side of the outstanding side of anchor shaft 18, and this other end is provided with coder 16.22 expressions are fixed on transom on the tension roller 13 by bolt 23, this transom 22 is provided with towards the outstanding S. A. 24 of the opposition side of the outstanding side of anchor shaft 18, by the rotation of coder 16 these S. A.s 24 of detection, detect the position or the speed of lift car thus.25 expressions are used to protect the protective case of coder 16.

As shown in Figure 2, in hoist trunk 100, because lift car 8 can not drop to the position that is provided with of tension roller 13, so, be used to detect the position of lift car or the coder 16 of speed can not disturb with other equipment with tension roller 13 is coaxial mounted.

In addition, owing to can detect the position and the speed of lift car by the coder 16 that is arranged on the tension roller 13, so also can be applicable in the floor forced reduction apparatus of end.

In addition, because coder 16 is arranged on the position of opposition side of outstanding side of anchor shaft 18 of tension roller 13,, check that operation becomes convenient but also can make so not only can make installation exercise become convenient.

Again, be that example is described at this with the occasion that governor 10 is arranged on hoist trunk top 40, but the method to set up of governor 10 is not limited in this, for example also can be arranged in the elevator hole 50.

Claims (1)

1. lift facility, it has: the lift car of lifting in hoist trunk; Suspend the main hoist cable of described lift car in midair; Winch with rope sheave of the described main hoist cable of reeling; The ring-type speed controller rope, it is connected with emergency braking device on being installed in this lift car, and along with the lifting of described lift car is moved together; Tension roller, it applies tension force to this speed controller rope; Anchor shaft, it supports this tension roller by bearing; Pouring weight, it is installed in the outstanding side of this anchor shaft; And governor, when described lift car had surpassed specified speed, described governor was controlled speed controller rope, and emergency braking device action, described lift facility are characterised in that,

Described winch, described governor, described speed controller rope and described tension roller are arranged in the described hoist trunk, and, described tension roller is arranged on the below of the position that described lift car and the energy disperser that is arranged in the elevator hole come in contact, and be provided with U font support, one end of this U font support is installed on the support on the anchor shaft that is arranged on described tension roller, the other end is crossed over the top of described tension roller and is positioned at the opposition side of the outstanding side of described anchor shaft, in addition, described tension roller is provided with adapter shaft, this adapter shaft has towards the outstanding S. A. of the opposition side of anchor shaft, and, have by the rotation that detects described S. A. at the other end of described U font support and to detect the position of described lift car or the coder of speed.

Images