CN201473153U - Lifting device for elevator - Google Patents

Abstract

The utility model provides a lifting device for an elevator, which can keep an elevator car stable on ground after the elevator lands and improve safety. The lifting device comprises a driving device, a rope wheel, brake drums and brake devices, wherein the rope wheel is connected with the driving device through a driving rotary shaft; the brake drums are connected with the driving rotary shaft; and the brake devices are used for maintaining or releasing rotating or stopping state of the brake drums. A plurality of brake pads capable of being abutted to the brake drums are arranged inside the brake devices, and a plurality of the brake devices are parallelly arranged correspondingly to the brake drums. The lifting device for the elevator is capable of ensuring safety of the elevator and improving reliability of the elevator.

Description

Winding device for elevator

Technical field

The utility model relates to the winding device for elevator that constitutes in the mode that improves elevator safety.

Background technology

In the prior art, as the bont of elevator, what have the bont of the mode of traction that has the balance weight body in hoist cable formula elevator and do not use the balance weight body go up to twine the bont of the reel mode of hoist cable at reel (drum).

Fig. 8 is the summary of the elevator configuration of the expression bont that uses mode of traction, connect cab 101 and balance balance weight body 102 with hoist cable 103, hang on the rope sheave 100a of gig 100, utilize the friction force (tractive force) between hoist cable 103 and the rope sheave 100a to carry out lifting, obtain weight balancing by balance weight body 102.In addition, symbol 104 is cab guide rails among the figure, the 105th, and balance weight body and function guide rail, the 106th, the urgent off-stream unit of cab, the 107th, door switch unit, the 108th, control panel, the 109th, governor.

Fig. 9 is the summary of elevator configuration that adopts the bont of reel mode, without the balance weight body, hangs cab 101 and carries out lifting by being wrapped in hoist cable 103 on the gig 100 that is arranged in the Machine Room 110.

In above-mentioned elevator, in order to utilize the operation control in the control panel, cab is unfixing movably up and down after each layer stops, and on the reel of this bont brake equipment is set.For example, brake equipment as above-mentioned reel mode, known have brake plate to lean on the elastic force and the mandrel surface of coil spring etc. to slip, stopping layer braking, when cab moves, isolating and discharging the brake equipment that slips (with reference to the Japanese real clear 60-137770 communique of opening) of this brake plate with magnet coil.

But, in the brake equipment of above-mentioned reel mode, on brake wheel, disposed a plurality of electromagnetic type brake equipments, this be because when cab rises and when decline the cause that differs widely of performance characteristic.For example, for improving the precision that lands of cab, need have the electro-magnetic braking device of big braking force when descending, the electro-magnetic braking device with little braking force when rising is just enough.Therefore, so that braking force variable mode during according to lifting is provided with a plurality of magnet coils at 1 table brake.That is, for improving the cab precision that lands, a plurality of magnet coils are set in 1 table brake, control to the braking force that stops, rather than improves the brake equipment as shutdown feature of safety by the halted state after keeping cab and landing from lifting moving.

Recently, on elevator, resulted in personal injury caused by an accident by the cab rapid movement after opening the door stopping layer, perhaps cab can not stop fully at desirable layer, takes place that this cab rises and even the fault of decline.The cab of elevator lands the back during rapid movement at the layer of regulation, and the accident relevant with human life takes place, the winding device for elevator of the safety that demand is a kind of after improving cab and landing.In addition, in recent years, have the mode of traction of balance weight body to become main flow owing to driving efficiently, the elevator safety that improves this mode becomes important.Winding device for elevator of the present utility model is for solving the scheme that such problem proposes.

The utility model content

Winding device for elevator of the present utility model is used to solve above-mentioned problem, realizes its purpose, it has actuating device, by means of driving turning cylinder and described actuating device bonded assembly rope sheave, and described driving turning cylinder bonded assembly brake wheel, keeping or discharge the brake equipment of the rotation halted state of described brake wheel, in described brake equipment, be provided with can with a plurality of brake plates of described brake wheel butt, described relatively brake wheel a plurality of described brake equipments of configuration side by side simultaneously.

In addition, winding device for elevator of the present utility model has the speed reduction gearing that the rotating drive direction of transfer of above-mentioned actuating device is transformed into orthogonal directions, described brake wheel by means of described speed reduction gearing relatively the floor of level be configured in above-below direction, simultaneously described relatively brake wheel disposes a plurality of described brake equipments along the vertical direction side by side.

And then preferred above-mentioned brake equipment possesses the static required braking potential of cab that is used to keep elevator at least separately.

According to winding device for elevator of the present utility model, because a plurality of brake equipments are set on brake wheel, so, even if one of them brake equipment can not be given full play to braking potential because of certain reason, do not move up and down after by remaining brake equipment the cab of elevator being stopped, ensuring safety from landing surface.Improve the safety of elevator like this, especially.

In addition, if the ground of this brake wheel and the relative level of a plurality of brake equipments in the above-below direction proper alignment, just the space that the bont in the Machine Room is accounted for narrows down, and can effectively utilize other space.

And then, at least separately possesses the static required braking potential of cab that is used to keep elevator by brake equipment, even other brake equipment fault, as long as a brake equipment normally moves, just can normally keep the cab of elevator to be in halted state, guarantee the safety of elevator, improve product reliability simultaneously.

Description of drawings

Fig. 1 is the front elevation of the winding device for elevator of the 1st embodiment of the present utility model.

Fig. 2 is to use the whole skeleton diagram that constitutes of elevator of the winding device for elevator of the 1st embodiment of the present utility model.

Fig. 3 is the front elevation of the brake equipment part in the winding device for elevator of expression the 1st embodiment of the present utility model.

Fig. 4 is the longitudinal diagram of structure of the brake equipment of expression the 1st embodiment of the present utility model.

Fig. 5 is the lateral plan of the winding device for elevator of expression the 1st embodiment of the present utility model.

Fig. 6 is the front elevation that the summary of the winding device for elevator of expression the 2nd embodiment of the present utility model constitutes.

Fig. 7 is the instruction diagram that is arranged on the switch running condition on braking trigger bar next door in the winding device for elevator of expression the 3rd embodiment of the present utility model.

Fig. 8 is the partial cross-sectional perspective view of general structure of the prior art elevator of expression mode of traction that the balance weight body is arranged.

Fig. 9 is the partial cross-sectional perspective view of general structure of elevator of prior art of representing not use the reel mode of balance weight body.

The specific embodiment

Extremely shown in Figure 2 as Fig. 1, winding device for elevator 1 of the present utility model is the bont that makes cab 3 liftings of elevator 2 by means of hoist cable 4, and it has: by means of drive turning cylinder 16, worm screw 14 and with these worm screw 14 ingear worm gears 15 and electrical motor 5 bonded assembly rope sheaves 6 as the actuating device of this bont 1; Drive turning cylinder 16 bonded assembly brake wheels 7 with this; Keep or discharge the brake equipment 8 of the rotation halted state of this brake wheel 7.A plurality of brake plate 8a that can leave with these brake wheel 7 butts are set at this brake equipment 8.

Dispose a plurality of these brake equipments 8 side by side at above-mentioned brake wheel 7.This brake equipment 8 has the required braking potential of halted state of the cab 3 that is used to keep elevator 2 separately at least.This means that at the braking potential that a brake equipment 8 should be had for example as 1 o'clock, the braking potential separately in a plurality of brake equipments 8 is more than 1.That is, braking potential does not mean that and prepares a plurality of for example O.7 brake equipments 8.When having only a brake equipment action by certain reason, can prevent to guarantee the state of affairs of the safety of elevator 2 by the braking potential deficiency.

Fig. 2 summary represents that the elevator single-piece constitutes, symbol 9 expression control panels, symbol 10 expression wheel flutters, symbol 11 expression balance weight bodies, symbol 12 expression switch doors, the energy disperser in the symbol 13 expression geosynclines.

For example shown in Figure 1, above-mentioned brake wheel 7 tympanic part cylindraceous can be divided and the number of brake plate is located at two places identically, also can along axis direction a drum be set to lateral dimension cylindraceous with prolonging.

The detailed construction of above-mentioned brake equipment 8, as Fig. 3 to shown in Figure 4, by following component set-up: with the circular-arc brake plate 8a of brake wheel 7 butts; Stick on the brake lining 8b on this brake plate 8a; The brake control lever 8c of this brake plate 8a is installed with freely swinging; Become the fulcrum 8d of the swing fulcrum of this brake control lever 8c; Be located at brake control lever 8c leading section, with brake control lever 8c press to the brake wheel side, the performance braking force coil spring 8e; On the top of brake control lever 8c, the outstanding switch arm of regulating brake action is regulated bolt 8f to the inside; By means of this switch arm regulate bolt 8f, brake control lever 8c to opening the switch arm 8g that direction (outer direction) is pushed; Make the pressing plate 8h of switch arm 8g swing; The mandrel 8i that this signature plate 8h is moved up and down; The movable core 8j that this mandrel 8i is moved up and down; Fixed iron core 8k and excitation coil 8m; Engage, depress forcibly mandrel 8c with the upper end of this mandrel 8i, discharge the braking trigger bar 8n that brakes.

When above-mentioned excitation coil 8m switched on excitation, movable core 8j descended, and mandrel 8i fixed thereon and pressing plate 8h descend, and switch arm 8g swings along the direction of arrow, and switch arm adjusting bolt 8f pushes to the left and right and opens, and brake control lever 8c is that fulcrum is opened laterally with fulcrum 8d.So, brake plate 8a leaves from brake wheel 7, and braking is released.When cab 3 lands, stop the energising of excitation coil 8m, elastic force by coil spring 8e, brake control lever 8c is pushed back the inboard, regulate bolt 8f and switch arm 8g by means of switch arm, mandrel 8i and braking trigger bar 8n are pushed upward, and brake plate 8e and brake wheel 7 butts stop the rotation of this brake wheel 7 simultaneously.

This brake equipment 8 is provided with two under the situation of present embodiment, improve the safety of elevator 2.In addition, according to condition, this brake equipment 8 also can be provided with more than 3 certainly.

Fig. 6 represents the 2nd embodiment of bont 1 of the present utility model, and the structure with above-mentioned the 1st embodiment is identical basically, and expression makes the structure of longitudinal type.That is, have the speed reduction gearing 17 that the rotating drive direction of transfer of this actuating device 5 is transformed into orthogonal directions, this brake wheel 7 by means of this speed reduction gearing 17 relatively the floor 18 of level be configured in above-below direction.On this brake wheel, dispose a plurality of brake equipments 8 along the vertical direction side by side.

In the bont 1a that constitutes like this, the area that occupies floor 18 diminishes, and uprises at above-below direction.Therefore, the space is set narrows down also passablely, can effectively utilize the space of Machine Room.

Fig. 7 represents the 3rd embodiment of bont 1 of the present utility model, and the position, mobile terminal in this braking trigger bar 8n swing is provided with mechanical switch 19, constitutes and connects (ON) or disconnect (OFF).For example, braking trigger bar 8n descends, and when switch becomes to connect (also can be to disconnect), confirms the situation that brake control lever 8c zero defect discharges by control setup 9.Because this switch 18 is not connected, when rope sheave 6 rotated, the brake wheel 7 of rotation and brake plate kept the state that slips, have the danger that is produced brake lining 8b wear down by friction.In this case, or give the alarm, or send song, to supervise repairing by this control setup 9.In addition, as long as switch 19 is set in the both sides of braking trigger bar 8n swing, will be safer.This is because can confirm that braking force acts on the cause on the brake wheel 7.

By switch 19 is set like this, can confirm that brake control lever 8c moves really, can prevent abrasion among the brake plate 8a etc.In addition, under situation about breaking down, can study for a second time courses one has flunked maintenances such as engineering rapidly.

Claims (2)

1. winding device for elevator, it is characterized in that, this winding device for elevator has: actuating device, by means of driving turning cylinder and described actuating device bonded assembly rope sheave, and described driving turning cylinder bonded assembly brake wheel, keeping or discharge the brake equipment of the rotation halted state of described brake wheel

In described brake equipment, be provided with can with a plurality of brake plates of described brake wheel butt, described relatively brake wheel a plurality of described brake equipments of configuration side by side simultaneously.

2. winding device for elevator as claimed in claim 1, it is characterized in that, this winding device for elevator has the speed reduction gearing that the rotating drive direction of transfer of above-mentioned actuating device is transformed into orthogonal directions, described brake wheel by means of described speed reduction gearing relatively the floor of level be configured in above-below direction, simultaneously described relatively brake wheel disposes a plurality of described brake equipments along the vertical direction side by side.

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