WO2015062958A1

WO2015062958A1 - Device for testing and adjusting load-bearing means tension in a load-bearing means line

Info

Publication number: WO2015062958A1
Application number: PCT/EP2014/072718
Authority: WO
Inventors: Adrian Attinger
Original assignee: Inventio Ag
Priority date: 2013-10-31
Filing date: 2014-10-23
Publication date: 2015-05-07

Abstract

Described is a device (10, 10') for testing and adjusting load-bearing means tension in a loaded load-bearing means line having a plurality of load-bearing means (51, 52, 53), wherein the device (10, 10') can be fixed to one of the load-bearing means (51) and comprises testing means (42) for detecting an orientation of the device (10, 10') fixed to the load-bearing means (51), the device (10, 10') being designed in such a way that the orientation of the device (10, 10') depends on the load-bearing means tension in the load-bearing means (51) and a mass of the device (10, 10'). A method for using such a device (10, 10') is also described.

Description

Device for testing and adjusting a suspension medium tension of a suspension element strand

The invention relates to a method and apparatus for testing and SET len of a suspension medium voltage of a plurality of support means loaded loaded suspension element strand.

Elevator systems may include an elevator car and a counterweight. The elevator car and the counterweight are movable in mutual dependence in the opposite direction in an elevator shaft and connected by a Tragm ittelstrang together. Usually a first end of the suspension element strand is attached to the counterweight. From the counterweight of the suspension element strand is guided upwards over a arranged in a shaft head of the elevator shaft pulley. From this guide roller, which may be formed as a drive roller, the suspension element strand is guided downwards in the elevator shaft to the elevator car. A second end of the suspension element strand is attached to the elevator car. Such suspension element strands can be formed from a plurality of support means. Exemplary are such suspension straps, synthetic fiber or steel cables. Such suspension element strands can also be used in elevator installations which have another type of suspension, for example a 2: 1 or a 4: 1 suspension.

During operation of the elevator installation, it is important that the suspension means of such a suspension element line are uniformly loaded, in order to avoid increased, wear-related wear or malfunction of the elevator installation. Accordingly, it is checked during assembly and / or maintenance of the elevator system, al al le support means of a suspension element strand are evenly loaded. Optionally, the support means voltages of the individual support means are compensated to ensure uniform loading of the support means of the suspension element strand.

By way of example, a device is known which can be fastened at a time to a plurality of support means of the suspension element strand. Differences in the suspension element tension of the suspension elements to which the device is attached can be detected in such a way that the device is swung out in the direction of the suspension element with a lower suspension element tension. Thus, the suspension element stresses of those suspension elements can consequently be 2

compared to each other, to which this device is attached. This can lead to the fact that I am two adjacent support means of Tragm ittelstranges comparable. In the case of at least three suspension elements, the outer suspension elements of the suspension element strand can nevertheless have differences in the suspension element tension after testing and adjustment by means of such a device, if the suspension element stresses of the two adjacent suspension elements are not exactly matched to one another.

Likewise, measuring devices are known which serve to detect the currently existing tensile forces of a suspension element. The suspension element is held at two points and between these two points, the suspension element is deflected and measured by means of a torsion and bending force sensor. When exceeding a load limit, for example, a signal can be triggered. Such a meter is relatively expensive due to its construction.

Based on the disadvantages mentioned, it is therefore an object of the invention to provide an improved device for testing and adjusting the support means voltage of a plurality of support means having loaded suspension element strand.

The object is achieved by a device for testing and SET len of a suspension medium voltage of a plurality of support means loaded Tragmittelstranges, wherein the device is fixable to a single one of the support means and comprises a test means for detecting an orientation of the fixed to the support means device, wherein the device so is formed so that the orientation of the device of the support means voltage of the suspension means and a mass of the device is dependent.

The object is also achieved by a method for testing and adjusting a suspension element tension of a load-bearing suspension element strands having a plurality of suspension elements, wherein the method can be executed or carried out by means of such a device, the method comprising the following method steps:

Fixing the device to a first of the suspension elements of the suspension element strand,

Detecting an orientation of the device that can be assigned to the first suspension element,

Fixing the device to a second of the suspension means of the suspension element strand,

Detecting an orientation of the device that can be assigned to the second suspension element, 3

- Changing the support means voltage of the first support means, wherein the device is fixed to the first support means, such that the alignment of the device is matched to the detected, the second support means assignable alignment of the device.

The object is also achieved by a method for testing and adjusting a suspension medium tension of a load-bearing element having loaded suspension element strand, the method being executable or carried out by means of a first such device and a second such device, the method comprising the following method steps:

Fixing the first device to a first one of the suspension elements of the suspension element strand,

Fixing the second device to a second one of the suspension elements of the support element Istranges,

Comparing an alignment of the first device, which can be assigned to the first suspension element, with an alignment of the second device, which can be assigned to the second suspension element,

- Changing the support means voltage of the first support means such that the alignment of the first device is aligned with the orientation of the second device.

The invention is based on the finding that for the testing and adjustment of the suspension medium tension of such a suspension element strand, neither a detection of individual suspension stress values by means of a complicated sensor system nor an arrangement of a device at the same time at least two of these suspension elements is necessary in order to compare the suspension element stresses of these suspension elements can.

This is achieved by attaching a device according to the invention to only one suspension element of the suspension element strand. The weight of the device acting as a lever on the region of the fastening or the mass of the device influences the orientation of the device. So the higher the support means voltage of the suspension element, the less the device pivots following Erdbeschleun following the area of attachment. In this respect, the suspension element tension counteracts the weight force of the device according to the invention. The orientation of the device on the support means is thus a measure of the support means voltage of the support means. 4

If this device or an essentially identical device is fastened to a further second suspension element of the suspension element strand, then the orientation of the corresponding device resulting from this second suspension element is a measure of the suspension element tension of this second suspension element. By matching the thus determined at the different support means of the suspension element strand orientations of the device or the devices Tragm the third voltages can be brought to an equal degree.

The device may also be used to equalize the Tragmiltelspannungen al ler support means of at least three support means having suspension element strand. Preferably, the device can be fixed to the suspension element by means of at least one fastening means.

A further development of the device has such a ausgebi ldeten carrier that causes its spaced from the support means mass in fixed to the support means state of the device detectable by the test device alignment of the device. Preferably, the carrier is designed as a lever arm. Different suspension element strands are used in different elevator systems. This suspension element strands are optionally used at different suspension medium voltages. By means of such individually designed devices it is possible to detect even small differences in the suspension element tension of suspension elements of a single suspension element strand, regardless of whether the suspension elements of the suspension element strand are exposed to high or low suspension element stresses.

A Befestigungsmiltel be coupled with the carrier, wherein the Befestigungsm is provided for fixing the device to the support means. This allows a simple attachment of the device to the support means, wherein the attachment of the device to the support means or the release of the device from the support means is little time consuming ig. For example, the device may have a clamp for this purpose.

The fastening means is fastened in a variable position on the carrier. Given the configuration of the device, the fastening means can be fastened in a variable position in order to be able to influence an alignment of the device on a suspension element at its given suspension element tension. The wearer can for the same purpose 5

include a bridge.

The device may comprise a tensioning weight attachable to the web in a variable position. Both the mass and the position of the tension weight thereby influence the orientation of the device.

Such a web may be elastic, wherein the device comprises a display device, which display device is arranged on the carrier, that a degree of deformation of the elastic web is recognizable. In this way, the carrier can be acted upon in a region designed to be movable relative to the fastening means, which force is not achieved or not only by means of a clamping weight having a constant mass. By way of example, a service technician can press this area with his finger. If the display device can detect an equal degree of deformation of the elastic web, as was in the examination of another support means of the suspension element strand was / is recognizable, the service technician can assume that he has applied the device or the devices with the same force. When the device (s) are acted upon with the same force, the orientations of the test device or of the test device, which can be activated on the different suspension elements, are comparable to one another.

The fastening means may be designed such that a lever effect caused by the mass of the carrier causes the fixation of the device on the suspension element. In this way, the device can be positioned on the suspension element and only be fixed by the lever effect, without having to screw the device on the support element by way of example.

In a Weiterbi ldung the device, the fastening means is formed by two bolts. Such bolts fulfill the purpose that the Befestigungsmittcl, so the device positioned on the support means and clamped by means of a lever movement on the support means, so it can be fixed. In this way, the device can be fixed in a simple and fast manner on the suspension element.

In a further development of the device, the bolts are fastened to the carrier in a variable position in such a way that the distance between these bolts can be changed. This is 6

advantageous because the device can be used for testing and adjusting the support means voltage different suspension element strands. By way of example, a first suspension element line to be tested or adjusted has supporting elements of lesser thickness or thickness than a second suspension element line to be tested or adjusted. Such a service technician can use the same device for checking or adjusting both suspension element strands.

In a further development of the device, the test equipment is gebi Leads by a spirit level. In this way, the orientation of the device on the support means can be determined in a simple manner.

In the following the invention will be explained in more detail with reference to figures. Show it:

Figure 1: an elevator system with a suspension element strand;

FIG. 2 shows a detail of a suspension element strand;

FIG. 3 shows a first device for testing and adjusting a suspension medium tension; FIG. 4a shows a second device, which is in a first orientation, for testing and adjusting a suspension-medium tension;

FIG. 4b shows a section of the device shown in FIG. 4a in a second orientation

Contraption;

FIG. 4c: section of the third orientation shown in FIG. 4a

Contraption;

Figure 5: a fastening means of a further fixable to a support means device;

Figure 6a: a third device for testing and adjusting a suspension medium tension;

and

Figure 6b: the third device under application of a force.

FIG. 1 shows an elevator installation 1 arranged in an elevator shaft 2. The elevator installation 1 comprises an elevator cage 3, a counterweight 4, a suspension element strand 50 and at least one deflection roller 5. 1, 5.2. This Umlenkrol le 5. 1, 5.2 is arranged in a shaft head of the elevator shaft 2. A first end of the suspension element strand 50 is fastened to the counterweight 4. From the counterweight 4 of the suspension element strand 50 runs in the elevator shaft 2 up to the deflection roller 5. 1, 5.2 and then down to the elevator car 3. A second end of the suspension element strand 50 is at the Aufauf 7

Zugskabine 3 attached. In addition to the 1: 1 suspension described according to FIG. 1, other forms of suspension with such a suspension element strand 50 are also conceivable, for example 2: 1, 4: 1 or 6: 1. The letter A indicates a section of the Tragm ittelstranges 50th

FIG. 2 shows a detail A of a carrier line 50 used in an elevator installation. By way of example, this section A is the marked section A of the suspension element line 50 shown in FIG. 1. The suspension element line 50 comprises at least two suspension elements 5 1, 52, 53 Supporting means 5 1, 52, 53 are usually similar. This means that all support means 5 1, 52, 53 of the suspension element strand 50, for example, flat belt or all support means 5 1, 52, 53 of the suspension element strand 50, for example, belts or all support means 5 1, 52, 53 of the suspension element strand 50, for example made of strands metal lseile or al le support means 5 1, 52, 53 of the suspension element lattice 50, for example, synthetic fiber ropes are. Due to maintenance or instal lation of the elevator system or wear of individual Tei len of the elevator system, these support means 5 1, 52, 53 have different Tragm ittelspannungen. This means that a first of these support means 5 1, 52, 53 can be stretched tighter in comparison to a second of these support means 5 1, 52, 53. Such differences in the suspension medium tension of individual to the tragm ittelstrang 50 associated support means 5 1, 52, 53 can lead to disruptions or excessive wear during operation of the elevator system.

FIG. 3 shows a device 10 for checking and adjusting the suspension element tension of such a loaded suspension element strand having a plurality of suspension elements. The device comprises a test means 42 and preferably a trained as a lever arm carrier 22. On the support 22 a Befestigungsmiltel is fixed, which can be preferably by two bolts 32, 34 gebi LET. This attachment means may be fixed to the attachment means, variable positions 37, 38, 39, 40, 41. By means of the fixing mortar, the device 10 can be fixed to a single Tragmiltel 5 1 of the suspension element strand 50 shown in Figure 2. By way of example, the variable positioning of the bolts 32, 34 makes it possible to change the distance between these bolts.

The device 10 has a mass which, in the case of a fixation of the device 10 on the suspension element 5 1 d causes the orientation of the device 10. A major Part of this mass may be spaced from the fastening means 32, 34 or from the support means 51 by means of a distance D. The carrier 22 may be formed from a web 43 and a tensioning weight 36, wherein the tensioning weight 36 is fixable on the web 43, the tensioning weight 36 may be fixed to the tensioning weight 36 assignable variable positions 62, 67 fixable. The variable positionability 37, 38, 39, 40, 41, 67, 62 of both the tensioning weight 36 and the fastening means 32, 34 makes it possible to adapt the device 10 for use on different suspension element strands. The test device 42, which is embodied as a spirit level by way of example, is suitable for detecting an alignment of the device 10 fixed to the suspension element 51,

FIG. 4a shows a device 10 fastened to the suspension element 51. The device 10 comprises a carrier 22, fastening means 32, 34 and a test device 42 embodied as a spirit level by way of example. The device 10 is attached to the suspension element 51 by means of the fastening means 32, 34 designed as a bolt fixed.

The spaced from the bolts 32, 34 mass of the carrier 22 causes during fixing a lever movement A of the device 10. The device 10 is clamped to the support means 51, so fixed when the lever movement A completed and the device 10 is a continuous, constant orientation having.

After fixation, the device 10 is aligned with the support means 51 such that the test means 42 can detect an example shown, straight alignment of the device 10. The orientation of the device 10, which can be determined by means of the test device 42, depends on the supporting medium tension of the suspension element 51 in a given embodiment of the device 10. The letter M indicates a detail of the device 10 fixed to the suspension element 51, the view of the detail M being the following figures 4a, 4b is used.

FIG. 4b shows a section of the device 10 shown in FIG. 4a in a second orientation or a further device 10 'of identical construction to the device 10 shown in FIG. 4a on a second suspension element 52 of the suspension element strand 50.

The device 10, 10 'has a device compared to that shown in Figure 4a 9

10 changed orientation, which is recognizable by the Prüfmitlels 42. The different orientations of the devices 1 0, 1 0 'shown in FIGS. 4 a and 4 b are based on a suspension element tension of the suspension element 52 shown in FIG. 4 b, which is increased in comparison to the suspension element 5 1 shown in FIG. In order to match the support tensions of the support means 5 1 shown in FIG. 4 a and of the support means 52, either the support means 51 shown in FIG. 4 a can be additionally tensioned, or the support means 52 shown in FIG. 4 b can be relaxed. The relaxation or the additional tensioning of each one of the two Tragm ittel 5 1. 52 can be repeated until the support means 5 1, 52 of Tragm ittelstrangcs have substantially the same Tragm ittelspannungen. At the same Tragm tern voltages of Tragm iltel 5 1, 52 have both in Figure 4a and d he device shown in Figure 4b or devices 10, 1 0 'on the same orientations. Identical orientations of the device 10 or of the devices 10, 10 'are recognizable on the basis of the test device 42 of the device 10 or of the test device 42 of the devices 10, 10'.

FIG. 4 c shows the device 10, which is fixed to a third suspension element 53 of the suspension element strand 50. Due to a much smaller suspension element tension of the suspension element 53 than the previously considered suspension elements 5 1 and 52, the device 10 shown in FIG. 4 c has the orientation shown.

FIG. 5 shows a fastening means 33 of a further device 10 which can be fixed to a suspension element 5 1 of a suspension element strand. The fastening element 33 is exemplified by a first and a second support element receptacle 35 a, 35 b and a fixing screw 35 c. The exemplified guided by the second support means receptacle 35b fixing screw 35c can engage in a thread of the first support means receptacle 35a such that tightening the fixing screw 35c causes a reduction in the distance between the ei most and the second support means receptacle 35a, 35b.

For the purpose of fixing the device 1 0 to the support means 5 1, the support means receptacles 35 a, 35 b and dam it the device 1 0 so on Tragm elite 5 1 are positioned that the support means 5 1 by tightening the fixing screw 35 c between the first and the second Tragm ittelaufnahme 35 a, 35 b clamped, that is fixed. After fixation, the device 10 may assume an orientation which is dependent on the Tragmiltelspannung the support means 5 1 and the mass of the device 10. This alignment can be determined by means of a test means, not shown, of the device 10.

FIG. 6 a shows a further device 10 for testing and setting a rated voltage, which may additionally comprise individual components of the devices 10, 10 'shown in FIGS. 3 and 4 a. The device 10 comprises a carrier 22, a fastening means 32, 33, 34 for fixing the device to a support means, a test means 42 and a display device 44. The carrier 22 has a web 43 which is elastically formed along a length FL. The display device 44 includes, for example, attached to the carrier 22 forming a scale Vernius 44. 1, an example formed as a rod pointer 44.2 and means 44.3 for attachment of the pointer 44.2 on the carrier 22. The parts of the display device 44, in particular the pointer 44.2 can in variable Position 45.1, 45.2 fixed to the carrier 22. In addition, a tensioning weight 36 can be fastened to the carrier 22, which tensioning weight 36 can influence the degree of deformation of the elastic web 43 as a function of its placement on the carrier 22 when fixing the device 10 to the suspension element.

Figure 6b shows the device 10 of Figure 6a, which is fixed to a support means 51. In order to set the device 10 fixed to the suspension element 5 1 in an example according to the Prüfmil- tels 42 horizontal alignment, a force F may be necessary. The force F acts at least partially on a defined area of the carrier 22 such that the web 43 is elastically deformed along the length FL by the force F. If this device 10 or a structurally identical second device is fixed to a further support means of the Tragmitte Istranges, this or the second device is also to be placed in a horizontal orientation. If the forces F which cause these horizontal orientations of the device 10 or of the devices on the two different suspension elements are the same, then both suspension elements have the same suspension medium stresses.

A reproducible horizontal alignment is necessary, for example, when the test device 42 is formed by a spirit level. The named force F, which can exert a service technician with his finger on the carrier 22 by way of example, causes an elastic deformation of the web 43. The extent of this deformation is essentially proportional to the force F and by means of the display device 44 can be determined. The pointer 44.2 of the display device 44 is fixed to the carrier 22 at a first of the positions 45.1, 45.2. It can easily be seen from FIG. 6b that if the pointer 44.2 of the display device 44 were fixed at the second position 45.2 shown, then it would be

Extent of deformation of the elastic web 43 on the vernier 44. 1 would not be readable. In contrast, the attachment of the pointer 44.2 at the first position shown 45. 1 leads to a vernier 44. 1 readable extent of deformation, if the Tragmittelspannung the Tragm itel 5 1 would be lower than it is shown according to Figure 6b.

As an alternative to the variant shown in FIGS. 6a and 6b, such a display device 44 can be formed, for example, by a laser device. In such a laser device, the pointer 44.2 is replaced by an example by a laser pointer equivalent effect.

Claims

claims

1 . Device (1 0, 10 ') for testing and adjusting a Tragmiltclspannung of a plurality of support means (5 1, 52, 53) having loaded Tragmittelstranges, wherein the device (1 0, 1 0') to a single one of the support means (5 1) fixable and a test means (42) for detecting an orientation of the device (10 1) fixed to the device (10, 10 '), wherein the device (10, 10') is formed such that the orientation of the device (1 0 , 10 ') is dependent on the carrying means tension of the carrying means (5 1) and a mass of the device (1 0, 10'), the device (10, 10 ') comprising:

- A preferably as lever arm so ausgebi ldeten carrier (22) that its from the Tragm mediate (5 1) spaced mass in the support means (5 1) fixed state of the device (10, 10 ') by the test means (42) detectable Alignment of the device (1 0, 1 0 ') causes, and

a fastening means (32, 33, 34) coupled to the carrier (22), the fastening means (32, 33, 34) for fixing the device (10, 10 ') to the suspension means (5 1) is provided,

wherein the fastening means (32, 33, 34) in variable position (37, 38, 39, 40, 41) on the support (22) can be fastened.

2. Device (1 0, 10 ') according to claim 1, wherein the Befestigungsm means (32, 34) is designed such that a by the mass of the carrier (22) caused l lebclwirkung d the fixing of the device on the support means (5 1 ) causes.

3. Device (1 0, 10 ') according to one of the preceding claims, wherein the fastening means by means of two bolts (32, 34) is formed.

4. Device (1 0, 10 ') according to claim 3, wherein the bolts (32, 34) in such variable position (37, 38, 39, 40, 41) on the carrier (22) are fastened, that the Absland between This pin (32, 34) is changeable.

5. Device (1 0, 10 ') according to one of the preceding claims, wherein the carrier (22) comprises a web (43).

6. Device (10, 10 ') according to claim 5, comprising a web (43) in variable positi- on (62, 67) attachable tension weight (36).

7. Device (10, 10 ') according to any one of claims 5 or 6, wherein the web (43) is elastic and the device (10, 10') comprises a display device (44), which display device (44) on the support (22) is arranged so that a degree of deformation of the elastic web (43) can be seen.

8. Device (10, 10 ') according to any one of the preceding claims, wherein the test means by a spirit level (42) is gebi LET.

9. A method for testing and SET len of a suspension medium voltage of a plurality of support means (5 1, 52, 53) having loaded Tragmittelstranges, wherein the method by means of a device (10, 10 ') according to one of claims I to 8 executable, wherein the method the following process steps include:

Fixing the device (10, 10 ') to a first one of the support means (5 1) of the support wire strand,

Detecting an orientation of the device (10, 10 ') that can be assigned to the first suspension element (5 1),

Fixing the device (10, 10 ') to a second of the carrying means (52) of the suspension element strand,

Detecting an orientation of the device (10, 10 ') that can be assigned to the second support means (52),

- Changing the support means voltage of the first support means (5 1), wherein the device (10, 1 0 ') on the first support means (5 1) is fixed, such that the orientation of the device (1 0, 10') to the detected , the second Tragmiltel (52) assignable alignment of the device (10, 1 0 ') is equalized.

1 0. A method for testing and adjusting a suspension medium voltage of a plurality of support means (5 1, 52, 53) having loaded Tragmittelstranges, wherein the method by means of a first and a second device (10, 10 ') according to one of claims I to 8 executable the method comprising the following method steps:

Fixing the first device (10) to a first of the carrying means (5 1) of the suspension element strand,

Fixing the second device (10 ') to a second one of the support means (52) of the support Central strand,

Comparing an alignment of the first device (10) that can be assigned to the first suspension element (5 1) with an alignment of the second device (10 ') that can be assigned to the second suspension element (52),

- Changing the Tragm ittelspannung the first support means (5 1) such that the alignment of the first device (10) to the alignment of the second device (10 ') is adjusted.