CN1944215A - Elevator ('rucksack'-elevator comprising a car suspended on the car frame) - Google Patents

Abstract

The present invention relates to elevator (1), which has a drive device at least composed of motor and friction wheel (7) or has a hydraulic drive device, and has a carrying frame (2) hanging on a carrying mechanism (6) with evident eccentricity, the carrying frame carries the elevator cabin (3) and can be guided moving on the guide rail, the carrying frame has at least a frame arm that extends approximately along the horizontal direction, the frame arm extends on the top of the elevator cabin (3), and the elevator cabin (3) is hanging on the frame arm.

Description

Elevator (car cab is hung on the cantilevered elevator on the car frame)

Technical field

The present invention relates to traction elevator, be configured to elevator usually as it, and be to make up in both cases in mode up to medium running velocity from medium-sized building to the light construction thing according to claim 1 preamble.

Background technology

The obviously eccentric elevator that hangs is a kind of like this elevator, wherein the car that constitutes by car frame and car cab because of hang runs into sizable bend loading, car will bear such load.The characteristics of this elevator itself are, hoist ropes is fixed on outside the ground-surface projection in zone of car that can use for used load.The car frame of obviously eccentric elevator that hangs or cantilevered elevator is L-shaped usually.Car cab is sat and is contained on the L shaped following horizontal part.This shape of car frame is used relatively with towing machine and fluid pressure drive device.Because in fact lift car body itself does not bear significant bend loading, but " sitting dress " (" aufsitzt "), so it can constitute quite gently.

Therefore in fact, obviously accentric car hang or cantilevered hang especially relevantly with L shaped car frame are brought advantage in many cases, because by such suspension, especially do not producing under the structure situation of difficult, three faces that can be defined in the lift car body enter.In other words, such structure is very flexibly with regard to the gate position.But, cantilevered elevator or the significantly eccentric elevator that hangs car and constitute have the net effciency lower than the elevator of guiding placed in the middle, and this is because here, bears torque by the car guiding mechanism, and this causes high loss due to friction sometimes.So this suspension notion is used to middle-size and small-size elevator.

The rope guiding device is actually by designed in various manners.To this, under the situation of rope traction-type actuating device, there is direct 1: 1 hang, and 2: 1 hangs.Therewith relatively, be to hang 2: 1 of counterweight 1: 1 of adding car to hang as special shape.Above hang was applicable to the cantilevered elevator in 3: 1.

DE4436088 discloses this cantilevered elevator with L shaped car frame.

This shortcoming with known configuration of L shaped car frame is, especially needs lot below real lift car body, promptly needs to be used for the additional space of the horizontal tray of L shaped car frame.

Summary of the invention

In contrast to this, task of the present invention is to provide a kind of elevator with car frame, and it also allows to utilize the space very economically.

According to the present invention, so finish this task, promptly bearing frame has the boom that at least one basic along continuous straight runs extends, and boom extends the car cab top, and car cab is suspended on this boom.

In other words, basic ideas of the present invention are, the load of supporting are transferred on the principle to the load of suspension.This load is the lift car body, and it is with its used load, and promptly the main portion of its weight and preferably almost whole weight are suspended on the last horizontal part of car frame.In other words, car frame has the style form of portal-framed structure, promptly is L shaped this moment.Like this, especially obtained the place in the car bottom side, this has brought benefit to little well.

From the support viewpoint (distortion and loss due to friction are as far as possible little) of elevator car or car, the lower edge that the vertical part of bearing frame extends to car cab always is favourable, thereby has obtained the almost end of alignment.But, a particularly preferred form of implementation regulation, the proportion by subtraction car cab lower edge, vertical portion of bearing frame is short, be that its end is on the car cab lower edge, thereby leaving another clearance envelope additional, between the car cab and the borehole wall under the branch of the vertical portion of bearing frame and on the extended line in its downward projection in zone, this clearance envelope uses for structure in other the well, may use for the car buffer of charging in constructing in the well.Such structure owing to therewith relatively again suboptimization space availability ratio allow to make up very little well, as long as in order to guarantee that installer and/or service worker have guard space and be provided with known alternative measure at well side.

In another also particularly preferred form of implementation, stipulate; substantially vertically extending between boom or the boom portion of bearing frame itself clearance envelope is arranged; when car has arrived predetermined hoistway position; this clearance envelope holds the part of actuating device and/or rope guiding device; thereby the part of car (is a bearing frame at least; even car cab preferably) the same height of institute's holding portion of arrival and actuating device and/or rope guiding device; even surpass it; this form of implementation allows such device structure; it can be adapted to very little well head, as long as in order to guarantee that installer and/or service worker have guard space to take known alternative measure.

In other words, above-mentioned car frame structure of the present invention allows the such car height and the well degree of depth, and it is more bigger that they just add safe spacing than car vertical dimension.This is important to novel device just, can stipulate to have the well head and the well of single-piece guard space in novel device thus, perhaps very little vertical well head and/or well size, and this replacing to the hydraulic efficiency equipment built in building to be repaired is important.It is just enough that the latter has a structure space more much smaller than common rope traction-type equipment from vertical tunnel dimension usually.Therefore, provide size quite narrow hoistway also only for reparation person.

Advantageously, the lift car body is suspended on the boom of at least one along continuous straight runs extension own by elastic support.Because at machinery and acoustic connection decoupling, this has improved the traveling comfort of operation.In addition, car cab preferably also is fixed at least one boom that itself vertically extends of bearing frame.For this reason, adopt an elastic support, it only allows to transmit the power of along continuous straight runs effect basically.Therefore guarantee that car cab can not twist.This is because the rigid support in perpendicular arm region may be carried out certain vertical motion in car cab elastic support zone at an upper portion thereof and this rigid support does not go wrong when correspondingly in the vertical direction is crooked.

Another preferred embodiment regulation, can take the mechanism's hang of bearing a heavy burden arbitrarily, preferably had 2: 1 and had at least one activity wheel or counterweight on car, or 1: 1, perhaps under special circumstances, had 2: 1, as heavy burden mechanism for car with counterweight, can adopt steel rope or plastic belt, the armour cover that it has or is not made of other material.In belt, not or be provided with the longitudinal construction of wedge shape or arc, be not used to strengthen traction.Adopt 2: 1 hangs that additional clearance envelope under counterweight is provided to counterweight, it can advantageously be used.Heavy burden described herein mechanism is more favourable to this, because it can realize compact design.

Description of drawings

According to the embodiment that describes in detail below in conjunction with accompanying drawing, other characteristics of the present invention, feature and advantage will become clearly, and accompanying drawing is:

Fig. 1: first embodiment that expression has 2: 1 hangs, it has fraction wheel drive device and compound around roller;

Fig. 2: second embodiment that expression has 2: 1 hangs, it comprises fraction wheel drive device and single around roller;

Fig. 3: the 3rd embodiment that expression has 2: 1 counterweight hangs and 1: 1 car hang;

Fig. 4: show suspension in 1: 1 and friction wheel and single around roller;

Fig. 5: expression has the elevator of 2: 1 fluid pressure drive devices.

The specific embodiment

Fig. 1 represents cantilevered elevator 1, and wherein lift car body 3 (sensu lato envelope, its structure almost can be arbitrarily) and counterweight 4 hang in 2: 1 modes respectively.Here, actuating device 7 particularly preferably is the form of fraction wheel drive device, and it comprises that compound around roller, such actuating device is very compact concerning the house, thereby helps best space utilization.Lift car body 3 hangs on the top of car frame 2.Lift car body 3 is equipped with the member that will take in, and these members have guaranteed that the power of being imported into car floor by used load is delivered to hitch point reliably always, and car cab is fixed on the bearing frame by hitch point in the top side.The guiding mechanism of bearing frame 2 carrying cars or track adjusting wheel and stop mechanism and other safety component.The bottom that is equipped with the car of track adjusting wheel 10 to be suspended on the vertical part of bearing frame 2 is placed in the there.Therefore, the high end parts that its allows bearing frame moves on to the next door of actuating device 7 or 8 from left and right sides, and in other words, the track adjusting wheel 8 that belongs to the part of friction wheel 7 enters between the boom or boom portion that roughly vertically extend of bearing frame 2 itself.So, internal segment is economized between clearancen in the well head zone, thereby perhaps actuating device can for ease of maintenaince be arranged to from the well head top board farther.Although roughly evenly finish with the car cab lower edge usually the bottom of the vertical part of bearing frame 2, here, it is apparently higher than car floor.In this way, below bearing frame, between the car cab and the borehole wall, obtained additional structure space.Here, this structure space is used to install at least one energy disperser 5 (not shown).

Fig. 2 represents above flexible program in conjunction with elevator shown in Figure 1., taked 2: 1 hangs here, it comprises that fraction wheel drive device and single (rather than compound) are around roller.As friction winding mechanism, can adopt the steel rope and the belt of any structure here.Just do not have compoundly in the embodiment of roller at this, belt and the especially outer use that is covered with elastomeric belt can bring outstanding advantage.Even if under the situation of bends, belt also has very high traction usually, and they allow little friction wheel diameter.

The characteristics of embodiment shown in Figure 3 are that lift car body 3 hangs according to 1: 1 ratio, and counterweight 4 hangs according to 2: 1 ratios.In this way, the distance of counterweight 4 is shortened half.This provides desirable space condition to other building element of installation in by the well district below the distance of process in focusing on hoistway.Perhaps, here also can install and have compound friction wheel around roller, may be according to the mode of first embodiment.

Next, Fig. 4 another embodiment of representing to have 1: 1 hang and having single friction wheel 7 around roller.What here also be suitable for is to comprise that the solution of friction wheel can be equipped with one accordingly to wheel and compound around roller.

At last, Fig. 5 represents to have the elevator structure of fluid pressure drive device.Here, hang and finish, so that can keep hydraulic actuating cylinder 13 needed casual labourers to make stroke in 2: 1 modes.Corresponding therewith, hoist ropes 6 is through track adjusting wheel 14, and this track adjusting wheel is placed on the hydraulic actuating cylinder 13 with wheel capitiform formula.Such structure will take some places certainly.Here, the very favorable effect of bearing frame structure performance of the present invention.Because on the wheel head on the hydraulic actuating cylinder 13 can the extreme higher position at car, move into the vertical portion of bearing frame 2 divide between (from upside), at this, near wheel 14, the wheel 14 between the vertical portion of bearing frame 2 is divided no longer in the vertical direction exceeds described part to car from downside.

Claims (9)

1. elevator, have at least the actuating device that constitutes by motor and friction wheel (7) or have fluid pressure drive device, and have obvious off-centre and be suspended on bearing frame (2) in the heavy burden mechanism (6), this bearing frame is carrying lift car body (3) again and can lead on guide rail and move, it is characterized in that: this bearing frame (2) has at least one boom of extending of along continuous straight runs roughly itself, this boom extends in the top of this lift car body (3), and this lift car body (3) is suspended on this boom.

2. elevator according to claim 1, it is characterized in that: the lower edge of this lift car body (3) of the vertical portion proportion by subtraction of this bearing frame (2) is short, its end is on the lower edge of this lift car body (3) in other words, thereby under the branch of the vertical portion of this bearing frame (2) and on extended line of its projection downwards, between this lift car body and the borehole wall additional clearance envelope is arranged, this clearance envelope uses for other hoistway structure and the car buffer (5) preferably charged in the hoistway structure.

3. elevator according to claim 1 and 2, it is characterized in that: this bearing frame (2) is to construct like this, promptly between the boom that roughly vertically extends of this bearing frame (2) or boom portion, clearance envelope is arranged, when lift car (2, when 3) having arrived predetermined hoistway position, this clearance envelope holds the part of actuating device (7) and/or rope guiding device (8,14).

4. according to the described elevator of one of claim 1 to 3, it is characterized in that: this lift car body (3) is suspended at least one boom (2) that roughly along continuous straight runs extends itself by elastic support.

5. according to the described elevator of one of claim 1 to 4, it is characterized in that: this lift car body (3) also be fixed on this bearing frame (2) at least one itself roughly vertically extend on boom, but only by a preferably elastomeric support, this support only allows to transmit the power that acts on the horizontal direction basically between described at least one basic boom that vertically extends and this lift car body (3).

6. according to the described elevator of one of claim 1 to 5, it is characterized in that: this actuating device (7) be positioned between the guide rail that is used for this lift car body (3) or counterweight (4) or on.

7. according to the described elevator of one of claim 1 to 6, it is characterized in that: this actuating device only turns over parallel being placed on the bearing in angle ground to the wheel and the axis of motor relatively, and described bearing is fixed on next-door neighbour's the borehole wall or guide rail.

8. according to the described elevator of one of claim 1 to 7, it is characterized in that: in the identical vertical projection district of relative car, this actuating device is placed in a gear space that is arranged on the elevator with secondary frame.

9. according to the described elevator of one of claim 1 to 5, this elevator is hydraulic-driven elevator form and has 2: 1 suspended structures, be used to dwindle the forced stroke of hydraulic actuating cylinder (13), it is characterized in that: relatively moving on the extreme higher position of this lift car (3) between the vertical beam of this bearing frame (2) from the top at the wheel on this hydraulic actuating cylinder (14), wherein this lift car (3) is taken turns (14) from the below near this, and between described vertical beam this taken turns (14) in the vertical direction and no longer surpassed described vertical beam.

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