CN101384502A

CN101384502A - Main rope swing stop device of elevator and elevator having it

Info

Publication number: CN101384502A
Application number: CNA2007800055500A
Authority: CN
Inventors: 横林真
Original assignee: Toshiba Elevator Co Ltd
Current assignee: Toshiba Elevator and Building Systems Corp
Priority date: 2006-02-14
Filing date: 2007-02-14
Publication date: 2009-03-11
Also published as: JP2007217067A; WO2007094367A1

Abstract

A main rope shaking prevention device for an elevator capable of controlling satisfactorily shaking of a main rope, being attached or detached easily with an excellent maintenance/inspection performance, and being produced at low costs. Since, by rotatably fitting a cylindrical elastic body (26) over a spindle (24) supported by a pair of brackets (21, 22), its outer diameter can be reduced, a shaking prevention device (20) can be mounted in the vertical gap between the bottom surface of a sheave support beam (7) and the main rope (11), thus ensuring easy maintenance/inspection work and attaching/detaching/changing work.

Description

Main rope swing stop and the elevator that possesses this device

Technical field

The present invention relates to suppress to suspend in midair the main rope swing stop of vibration of the part of between a pair of cage side rope sheave, extending in the main rope of lift car and the elevator that possesses this main rope swing stop, be more in detail, relate to the vibration that not only can suppress main rope well, and mainteinance repair is good, install take off also easy, and the improving technology that can make at low cost.

Background technology

The integral structure of the elevator of main rope swing stop of the present invention at first can be installed with reference to Fig. 7 general description.This elevator 1 is not for there being the machine-roomless lift of Machine Room above lift well 2, car 3 under the guiding of pair of right and left cage

side guide rail

4L, 4R in the lifting of the inside of lift well 2.

The car frame of suspension craning cab 3 has a pair of left and right sides sidewall along the car 3 left right vertical frame 5L, the 5R that extend of direction up and down, and crossbearer between the upper end of these vertical frames, above car 4 along the horizontally extending upper beam 6 of left and right directions.

And, at the upper surface of car 3 and put the beams in place between 6 in the vertical play, be equipped with in horizontal surface the rope sheave support beam 7 with respect to 6 diagonally extendings of putting the beams in place, the lower surface of the upper surface of the length direction middle body of rope

sheave support beam

7 and 6 the length direction middle body of putting the beams in place is connected closely puts the beams in place on 6.And the both ends of this rope sheave support beam 7 rotate cage side rope sheave 8L, the 8R that freely is supported with pair of right and left respectively.

It is free around the S. A. rotation of extending along fore-and-aft direction to be provided near the traction sheave 9 in cage side guide rail 4L upper end, left side, by actuating device 10 driven in rotation.

Surround the distolateral by from the traction sheave 10 part 11a that extends of cage side rope sheave 8L to the left of main rope 11 on the traction sheave 10 downwards, horizontally extending part 11b between pair of right and left cage

side rope sheave

8L, 8R, and the part 11c that extends upward, is fixed on right side rope hitch plate (the ヒ Star チ) 12R of portion from the cage side rope sheave 8R on right side constitutes; Wiring suspension craning cab 3 with 2: 1.

And, the other end that holds the main rope 11 on the traction sheave 9 not have the counterweight 13 of lifting under the guiding of counterweight side rails of expression in the drawings with 2: 1 wiring suspention, by constituting from traction sheave 10 part 11e on the rope hitch plate 12L on the left of rotation freely is bearing in the part 11d that heavy side rope sheave 14 is extended on counterweight 13 tops downwards and extends upward, being fixed on from counterweight sheave 14.

But, what the natural frequency of interval between cage side rope sheave 8L, the 8R of pair of right and left or effect decisions such as tension force thereon and external factor caused encourages under the close situation of vibration frequency, and the part 11b that extends between pair of right and left cage

side rope sheave

8L, 8R in the main rope 11 produces self-excited vibration.

So knock that produces between pair of right and left cage

side rope sheave

8L, 8R if follow this self-excited vibration or vibration propagation then diminish car 3 inner passengers' traveling comfort to car 3.

Therefore, elevator picture in the past is equipped with antivibration gear 15 (with reference to Japanese Patent Application 2004-295233 number) in the gap between a pair of shaped steel 7a in front and back, the 7b that constitute rope sheave support beam 7 as shown in Figure 8.

This antivibration gear 15 is a pair of before and after being close to respectively on the longitudinal wall face of a pair of

shaped steel

7a, 7b and with bolt

B fixing support

15a, 15b before and after having, and rotation freely is bearing in this to the resilient roller 15c between the support.

So, this roller 15c in pressing down main rope 11 the part 11b that between pair of right and left cage

side rope sheave

8L, 8R, extends and follow the rotation together of moving of main rope 11, suppress the generation of self-excited vibration.

But the antivibration gear of above-mentioned prior art 15 is owing to be that bearing with roller 14c inboard rotates the structure of anvil roll 15c freely, so the external diameter of roller 15c is big.

Thus, can not be configured in the gap narrow between the upper surface of the lower surface of rope sheave support beam 7 and car 3, have to be configured in the gap between a pair of shaped steel 7a in front and back, the 7b that constitutes rope sheave support beam 7.

And, needing the housing that is used for bearing anvil roll 15c, its manufacturing cost increases.

And as shown in Figure 7, rope sheave support beam 7 is close to the upper surface of its length direction middle body to put the beams in place on the lower surface of 6 length direction middle body and is combined into one.

Thus, be used for cage side rope sheave 8L that the working space of mainteinance repair or loading and unloading antivibration gear 15 has only the left side with put the beams in place between 6 and the car sheave 8R on right side and upper beam 6 between, the operation of mainteinance repair and the operation of loading and unloading operation are poor.

And if cover cage side rope sheave 8L, the 8R of pair of right and left as shown in Figure 8 with

safety cap

16L, 16R, then working space reduces more.

Summary of the invention

Therefore, purpose of the present invention will solve above-mentioned existing in prior technology problem exactly, a kind of vibration that not only can suppress main rope well is provided, and mainteinance repair is good, install take off also easy, and the improvement that can make at low cost the elevator main rope swing stop and the elevator that has used this antivibration gear.

In order to address the above problem, the 1st scheme of the present invention is the antivibration gear of the vibration of the part of extending between a pair of cage side rope sheave that is bearing on the above-mentioned car in a kind of main rope that suppresses to suspend in midair lift car, it is characterized in that having by the pair of brackets that is installed on the above-mentioned car and support the fulcrum and the freely outer cylinder elastic body that is embedded on the above-mentioned fulcrum of rotation at its two ends.

In addition, a pair of cage side rope sheave can be along all around or inclination cross lift well the direction devices spaced apart be provided in the top or the bottom of car, and can be installed on car, car frame or the rope sheave support beam.

And the cylinder elastic body can be the parts that High molecular materials such as the soft rubber material of for example elastic deformation or soft resin material are configured as drum.

And can as required tubular part intercalations such as for example steel pipe be gone in the elastomeric inner peripheral surface of this cylinder, prevent the inner peripheral surface wearing and tearing and this cylinder elastic body can be rotated around fulcrum smoothly.

That is, therefore the elevator main rope swing stop of the 1st scheme can dwindle its external diameter owing to be with the freely outer structure that is embedded on the fulcrum of cylinder elastic body rotation, can improve the selection degree of freedom of installation site.

And,, therefore can reduce manufacturing cost owing to be the structure of not using bearing etc.

The 2nd scheme is characterised in that, in the elevator main rope swing stop of the 1st scheme record with the self-lubricating formula (No of drum

The oil formula) the lining intercalation is gone in the elastomeric inner peripheral surface of above-mentioned cylinder.

In addition, as self-lubricating formula lining, can use parts or oil-containing sintered alloy, oleoresin etc. in the cylinder part of for example solid lubricant being imbedded brass alloys or cast iron.

And,, the cylinder elastic body is rotated smoothly around fulcrum by be pressed into self-lubricating formula lining in the elastomeric inner peripheral surface of cylinder, the internal diameter size of self-lubricating formula lining is set than the outside dimension of fulcrum slightly bigly.

Promptly, the elevator main rope swing stop of the 2nd scheme record is owing to can reduce friction between elastomeric inner peripheral surface of cylinder and the fulcrum by self-lubricating formula lining, therefore the cylinder elastic body is rotated smoothly, and can prevent the elastomeric inner peripheral surface wearing and tearing of cylinder.

And, owing to be the self-lubricating formula, therefore not only can the stable performance of long term maintenance, and can simplify the mainteinance repair operation.

And, can use the self-lubricating lining to replace the hollow tube that steel pipe in the elastomeric inner peripheral surface of above-mentioned cylinder etc. is gone in intercalation.

And the self-lubricating lining by the gauge member that length is short uses side by side along axis direction, not only can increase productivity and can reduce manufacturing cost.

The 3rd scheme is characterised in that the antivibrating parts of the High molecular material system between the attachment face that is installed in above-mentioned pair of brackets and above-mentioned cage side of having appended in the elevator main rope swing stop of the 1st scheme record.

In addition, as the antivibrating parts of High molecular material system, can use for example sheet material of vibration-proof rubber.

That is, the elastomeric external diameter of the cylinder in the elevator main rope swing stop reduces significantly than the external diameter of the roller 15c of the antivibration gear 15 of prior art shown in Figure 8, and wall is thin.

Thus, the vibration that produces in the main rope might fully not decay and just propagates into cage side.

At this moment, because the elevator main rope swing stop of the 3rd scheme is equipped with the antivibrating parts of High molecular material system between pair of brackets and cage side attachment face, therefore can reduce vibration and noise from of the propagation of main rope to cage side.

And, by adjusting the tight condition that pair of brackets is installed to the bolt on the car, can adjust the amount of compression of the antivibrating parts of High molecular material system, can adjust the position relation between main rope and the cylinder elastic body.

And, the 4th scheme is characterised in that, appended in the elevator main rope swing stop of the 1st or the 2nd scheme record between the attachment face that is installed in above-mentioned pair of brackets and above-mentioned cage side, to the above-mentioned cylinder elastic body application of force so that the coil spring that above-mentioned cylinder elastic body contacts with above-mentioned main rope always.

That is, the elevator main rope swing stop of the 4th scheme contacts the elastomeric outer peripheral face of cylinder by utilizing helical spring thrust always with main rope, can suppress the vibration of main rope reliably.

And even make the elastomeric outer peripheral face wearing and tearing of cylinder, its outside dimension is diminished gradually with contacting of main rope, the cylinder elastic body also contacts with main rope always, therefore can simplify the mainteinance repair operation.

The 5th scheme is a kind of elevator that possesses the main rope swing stop of arbitrary scheme record in the 1st～4 scheme, and it is characterized in that: the rope sheave support beam that above-mentioned a pair of cage side rope sheave is freely supported in rotation is fixed on the above-mentioned car; And above-mentioned main rope swing stop is installed in the lower surface of above-mentioned rope sheave support beam, so that in the part of extending between above-mentioned a pair of cage side rope sheave and the vertical play between the lower surface of above-mentioned rope sheave support beam of above-mentioned cylinder elastic body in above-mentioned main rope.

That is,, therefore this antivibration gear can be installed in the lower surface and the vertical play between the main rope of rope sheave support beam because the elevator of the 5th scheme is the elevator of the little antivibration gear of the elastomeric external diameter of cylinder that possessed the such use of the 1st～4 scheme.

Thus, be installed in the rope sheave support beam in the antivibration gear of prior art in the side clearance different, the mainteinance repair operation of antivibration gear and loading and unloading are changed operation and can easily be carried out.

The 6th scheme is characterised in that, on the basis of the elevator of the 5th scheme record, above-mentioned main rope swing stop is provided in the lower surface of above-mentioned rope sheave support beam the part near above-mentioned a pair of cage side rope sheave respectively.

Promptly, because the described elevator of the 6th scheme is provided in antivibration gear respectively in the lower surface of rope sheave support beam the part near each cage side rope sheave, compare during therefore with antivibration gear of installation below the length direction central part of rope sheave support beam 7, can be suppressed at the vibration of the main rope that extends between a pair of cage side rope sheave more reliably.

The invention effect

As can understanding from the above description, if employing the present invention, the vibration that not only can suppress main rope well can be provided, and mainteinance repair is good, install take off also easy, and the improvement that can make at low cost the elevator main rope swing stop and the elevator that has used this antivibration gear.

Description of drawings

Fig. 1 has the block diagram of main portion of elevator of the antivibration gear of the 1st embodiment for expression.

Fig. 2 is from the oblique block diagram of the rope sheave support beam shown in the direction with the aid of pictures 1 down.

Fig. 3 is from the oblique amplification stereogram of the antivibration gear shown in the direction with the aid of pictures 2 down.

Fig. 4 is the cutaway view of expression antivibration gear shown in Figure 3.

Fig. 5 is the cutaway view of the antivibration gear of expression the 2nd embodiment.

Fig. 6 is the cutaway view of the antivibration gear of expression the 3rd embodiment.

Fig. 7 can use the block diagram of the elevator of antivibration gear of the present invention for expression.

Fig. 8 has the block diagram of rope sheave support beam of the antivibration gear of prior art for expression.

Description of symbols

1. the elevator of prior art; 2. lift well; 3. car; 6. put the beams in place; 7. rope sheave support beam; 8L, 8R. cage side rope sheave; 11. main rope; 15. the antivibration gear of prior art; 20. the antivibration gear of the 1st embodiment; 21,22. supports; 23. hold-down bolt; 24. fulcrum; 25. installation nut; 26. cylinder elastic body; 27. steel pipe or self-lubricating lining; 28. packing ring; 30. the antivibration gear of the 2nd embodiment; 31. vibration-proof rubber sheet material; 40. the antivibration gear of the 3rd embodiment; 41. ladder bolt; 42. coil spring; 100. possess the elevator of main rope swing stop of the present invention

The specific embodiment

Describe elevator main rope swing stop that the present invention relates to and the embodiment that has used the elevator of this device in detail below with reference to Fig. 1 to Fig. 6.

In addition, in the following description, the identical part that comprises above-mentioned prior art is used identical Reference numeral, the repetitive description thereof will be omitted.

The 1st embodiment

The elevator that describes the main rope swing stop of the 1st embodiment in detail and used this device with reference to Fig. 1～Fig. 4 at first.

It is different with the elevator 1 of prior art shown in Figure 7 that the elevator 100 of Figure 1 and Figure 2 replaces at main rope swing stop 20L, 20R with the 1st embodiment on rope vibration damping device 15 this point of the prior art shown in Fig. 8.

Antivibration gear

20L, 20R are separately fixed at the close pair of right and left cage side rope sheave 8L in rope sheave support beam 7 lower surfaces, the part of 8R, suppress the vibration of the part 11b that extends between a pair of cage

side rope sheave

8L, 8R in the main rope 11.

In addition, because

antivibration gear

20L, 20R are identical structure, therefore in the following description they are called antivibration gear 20 and describe.

As shown in Figure 3 and Figure 4, antivibration gear 20 has the

support

21,22 on a pair of lower surface that is installed in a pair of shaped steel 7a, the 7b that constitute rope sheave support beam 7 respectively.

The cross sectional shape of these

supports

21,22 is the L word shape, have part 21a, 22a and longitudinal wall part 21b, 22b on the lower surface that is close to shaped

steel

7a, 7b, and run through the lower surface that can be fixed on rope sheave support beam 7 among inserting hole 21c, the 22c that is close to part 21a, 22a setting by bolt 23 is punctured into.

And the fulcrum 24 of steel is across between each longitudinal wall part 21b, 22b of

support

21,22, and its two ends are fixing with nut 25.

In addition, this fulcrum 24 has the rigidity that is enough to suppress the vibration that this part of this main rope 11 11b produces.

Cylinder elastic body 26 rotates freely outer embedding (outer embedding) on fulcrum 24.

This cylinder elastic body 26 is the parts that High molecular materials such as the soft rubber of elastic deformation or soft resin are shaped to drum, and steel pipe 27 is pressed in the inner circumferential surface, prevents the inner peripheral surface wearing and tearing and cylinder elastic body 26 can be rotated smoothly around fulcrum 24.

And steel or resinous packing ring 28 are inlaid between the both ends and pair of

brackets

21,22 of cylinder elastic body 26 coaxially, reduce the friction that produces between cylinder elastic body 26 and the

support

21,22, and cylinder elastic body 26 can be rotated smoothly.

In addition, make cylinder elastic body 26 determine the position of fulcrum 24 contiguously with this part 11b of main rope 11 at above-below direction always.

That is, therefore the main rope swing stop 20 of this 1st embodiment can dwindle its external diameter because employing makes the freely outer structure that is embedded on the fulcrum 24 of cylinder elastic body 26 rotations.

Thus, this main rope swing stop 20 can be installed in the lower surface of rope sheave support beam 7, so that the inboard of the vertical play S of cylinder elastic body 26 between the lower surface of this part 11b of main rope 11 and rope sheave support beam 7.

Therefore, different with the antivibration gear 15 of prior art in the gap that is installed in rope sheave support beam 7 inboards, the mainteinance repair operation of antivibration gear 20 and loading and unloading operation can easily be carried out.

And, owing to be not use bearing, rotate the simple structure of supporting cylinder elastic body 26 freely, therefore can reduce its manufacturing cost.

And in the elevator 100 of basis the 1st embodiment that possesses

antivibration gear

20L, 20R,

antivibration gear

20L, 20R are separately fixed at the close a pair of cage side rope sheave 8L in rope sheave support beam 7 lower surfaces, the part of 8R.

Thus, and when the lower surface of the length direction central part of rope sheave support beam 7 is installed an antivibration gear, compare, can suppress the vibration of the part 11b that between a pair of cage

side rope sheave

8L, 8R, extends in the main rope 11 more reliably.

And in the upper beam 6 of car 3 and the part between upper beam 6 of the partial sum between the cage side rope sheave 8L of left side and the right side cage side rope sheave 8R, the mainteinance repair operation of each

antivibration gear

20L, 20R and loading and unloading operation can easily be carried out.

In addition, also can use and the oleoresin material is formed self-lubricating lining cylindraceous replace the steel pipe 27 that cylinder elastic body 26 inner peripheral surfaces are gone in intercalation.

Thus, can prevent that the wearing and tearing of cylinder elastic body 26 inner peripheral surfaces from also can reduce the friction between cylinder elastic body 26 and the fulcrum 24, so can make cylinder elastic body 26 smoothly around fulcrum 24 rotations.

And,, can also simplify the mainteinance repair operation of fuel feeding etc. by using the self-lubricating lining.

And, by the use of lining up of the self-lubricating lining of the gauge member that the length of axis direction is short, can increase productivity and reduce manufacturing cost.

The 2nd embodiment

The main rope swing stop 30 of the 2nd embodiment is described below with reference to Fig. 5.

Cylinder elastic body 26 in the main rope swing stop 20 of above-mentioned the 1st embodiment is compared with the roller 15c of prior art antivibration gear 15 shown in Figure 8, and its external diameter reduces significantly, and wall is thin.

Thus, the vibration that produces of a part of 11b of main rope 11 might fully not decay and just propagates on the rope sheave support beam 7 by fulcrum 24,

support

21,22.

At this moment, therefore the main rope swing stop 30 of this 2nd embodiment can reduce the propagation from main rope 11 lateral car 3 sides of vibration and noise owing to respectively vibration-

proof rubber panel

31,31 is installed between the attachment face of pair of

brackets

21,22 and rope sheave support beam 7.

And, by adjusting the tight condition that pair of

brackets

21,22 is installed to the bolt and

nut

23,23 on the rope sheave support beam 7, can adjust the amount of compression of vibration-

proof rubber panel

31,31, a part of 11b that can inching master rope 11 and the position of the above-below direction between the cylinder elastic body 26 relation.

The 3rd embodiment

The main rope swing stop of the 3rd embodiment is described below with reference to Fig. 6.

In antivibration gear shown in Figure 6 40, be used for making the bolt that each

support

21,22 is installed on the rope sheave support beam 7 into ladder bolt 41.

And each

support

21,22 moves up and down work freely and is embedded on the following large diameter part 41a of head of this ladder bolt 41.

And, between the lower surface of rope sheave support beam 7 and each

support

21,22, be separately installed with coil spring 42, downwards to cylinder elastic body 26 application of forces so that cylinder elastic body 26 contact with this part 11b of main rope 11 always.

That is,, therefore can suppress the vibration of this part 11b of main rope 11 reliably because the elastic force of coil spring 42 can make the outer peripheral face of cylinder elastic body 26 contact with this part 11b of main rope 11 in the antivibration gear 40 of this 3rd embodiment always.

And even make the outer peripheral face of cylinder elastic body 26 wear and tear, its outside dimension is diminished gradually with contacting of main rope 11, cylinder elastic body 26 also contacts with this part 11b of main rope 11 always, therefore can simplify the mainteinance repair operation.

Though more than describe each embodiment of elevator main rope swing stop that the present invention relates to and the elevator that possesses this device in detail, the present invention is not limited to above-mentioned embodiment, certainly carries out all changes.

For example, the cage side rope sheave all is installed on the rope sheave support beam in the respective embodiments described above.

Relative with it, when the cage side rope sheave is installed on car or the car frame, main rope swing stop of the present invention can certainly be installed on car and the car frame.

And, be arranged at the cage side rope sheave under the situation of bottom of car, can certainly use main rope swing stop of the present invention.

Claims

1. the main rope swing stop of an elevator, it is the antivibration gear that suppresses the vibration of the part of extending in the main rope of suspention lift car between a pair of cage side rope sheave that is bearing on the above-mentioned car, it is characterized in that having:

Support the fulcrum at its two ends by the pair of brackets that is installed on the above-mentioned car;

The freely outer cylinder elastic body that is embedded on the above-mentioned fulcrum of rotation.

2. main rope swing stop as claimed in claim 1 is characterized in that, also has the self-lubricating formula lining that is installed in the drum between above-mentioned fulcrum and the above-mentioned cylinder elastic body.

3. main rope swing stop as claimed in claim 1 or 2 is characterized in that, also has the antivibrating parts of the High molecular material system between the attachment face that is installed in above-mentioned pair of brackets and above-mentioned cage side.

4. main rope swing stop as claimed in claim 1 or 2, it is characterized in that also having between the attachment face that is installed in above-mentioned pair of brackets and above-mentioned cage side, so that the coil spring that above-mentioned cylinder elastic body contacts with above-mentioned main rope always to the above-mentioned cylinder elastic body application of force.

5. an elevator that possesses each the described main rope swing stop in the claim 1～4 is characterized in that,

The rope sheave support beam that above-mentioned a pair of cage side rope sheave is freely supported in rotation is fixed on the above-mentioned car;

Above-mentioned main rope swing stop is installed in the lower surface of above-mentioned rope sheave support beam, so that in the part of extending between above-mentioned a pair of cage side rope sheave and the vertical play between the lower surface of above-mentioned rope sheave support beam of above-mentioned cylinder elastic body in above-mentioned main rope.

6. elevator as claimed in claim 5 is characterized in that, above-mentioned main rope swing stop is provided in the lower surface of above-mentioned rope sheave support beam the part near above-mentioned a pair of cage side rope sheave respectively.