EP4429992A1 - Schienensystem für eine aufzuganlage und verfahren zum herstellen eines solchen schienensystems - Google Patents
Schienensystem für eine aufzuganlage und verfahren zum herstellen eines solchen schienensystemsInfo
- Publication number
- EP4429992A1 EP4429992A1 EP22821307.0A EP22821307A EP4429992A1 EP 4429992 A1 EP4429992 A1 EP 4429992A1 EP 22821307 A EP22821307 A EP 22821307A EP 4429992 A1 EP4429992 A1 EP 4429992A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- rail system
- gaps
- anchoring devices
- lengths
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/002—Mining-hoist operation installing or exchanging guide rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/023—Mounting means therefor
Definitions
- the present invention relates to a rail system for an elevator system and a method for producing such a rail system.
- An elevator system can have vertically movable components, such as a car and a counterweight for the car.
- the vertically moving components can be guided through a rail system of the elevator system.
- the rail system prevents lateral movements of the vertically movable components.
- the vertically movable components can be moved along vertical rails of the rail system by a drive device.
- the rails can, for example, run inside an elevator shaft of the building.
- the rails can be connected to walls of the elevator shaft by anchoring devices of the rail system.
- the anchoring devices can be referred to as rail clamps or brackets.
- the anchoring devices can be arranged at regular intervals along the rail. With regular anchoring devices along the rail, a drilling jig can be used, for example, in order to be able to precisely maintain the distances.
- JP 2013 151 336 A, JP S55 74980 A, EP 3 118151 A1, EP 2 516 311 A1 and JP 2021 147 118 A show arrangements of anchoring devices in the shaft.
- the distances between the anchoring devices are constant over the entire rail system.
- the distance used is designed for a maximum load on the rail.
- the rail is not loaded equally everywhere or is not loaded to the maximum everywhere. Therefore, a conventional rail system has too many anchoring devices at less stressed points. With the approach presented here, the gaps between the anchoring devices are adapted to the actual load. As a result, fewer anchoring devices can be used. With the approach presented here, the material requirements for the anchoring devices of the rail system can be reduced by up to 25 percent.
- a rail system for an elevator installation having at least one vertically aligned rail for guiding vertically movable components of the elevator installation, the rail being anchored to at least one essentially vertically aligned wall using anchoring devices at different height positions and bridges gaps between adjacent anchoring devices, the lengths of the gaps varying at least in a partial area of the rail system in a monotonically decreasing dependence on a local load on the rail.
- a method for producing a rail system for an elevator system comprising the steps:
- An elevator system can be a passenger transport system.
- the elevator installation can have at least one car, which can be moved up and down in the vertical direction along a rail system of the elevator installation.
- a weight of the cabin can be at least partially compensated by at least one counterweight.
- the counterweight can also be moved up and down along the rail system.
- the cabin and the counterweight can be connected to one another by means of suspension, such as ropes or belts.
- the suspension means can be moved by a drive system of the elevator installation in order to move the car up while the counterweight is being moved down and vice versa.
- the drive system can be arranged, for example, at an upper end of the rail system.
- the rail system can have at least one vertical rail that extends continuously over the entire elevator system.
- the rail can be made of a metal material, for example.
- the rail can be composed of individual sections.
- a pit area can be arranged at a lower end of the rail. In the pit area, the rail can be anchored in a foundation of the elevator system.
- the car can be moved within a travel range of the rail located above the pit area.
- a buffer for the cabin can be arranged in the pit area. In the case of a buffer run, the cabin can drive onto the buffer in the pit area.
- the rail system can be arranged, for example, inside an elevator shaft of a building.
- the rail system can also be attached to an outside wall or Be arranged inside wall of the building.
- the rail can be connected to the building or the wall via essentially horizontally aligned anchoring devices of the rail system.
- An anchoring device can be referred to as a rail clip or bracket.
- the anchoring devices can be screwed to the building or the wall.
- An anchoring device can be used for one or more rails of the rail system.
- the splint system In order to support the splint over the entire range of movement, the splint system has a large number of anchoring devices.
- the anchoring devices are arranged at different height positions along the rail. Every two anchoring devices are spaced apart from one another by a gap. The gap represents a distance between adjacent anchorage devices in the vertical direction.
- the anchoring devices have variable spaces here.
- the gaps between pairs of anchoring devices which follow each other in the vertical direction can differ from each other by more than 1%, preferably more than 2%, 5% or even more than 10%.
- the lengths of the gaps can essentially depend on a local load on the rail.
- the lengths of the gaps can be calculated considering the local loading.
- the load can be composed of different forces.
- the forces can act in the direction of the rail. Likewise, the forces can act transversely and/or obliquely to the rail. The load results from a sum of the forces.
- the dependency of the length of the gaps on the local load is monotonically decreasing.
- Monotonically decreasing describes a property of the function that describes the dependency of the length of the gaps on the local load.
- the length of the gaps monotonically decreases for increasing loads. This means that the length of the gaps either decreases or at least remains the same for increasing loads. This applies in particular to the loading caused by the dead weight of the rail arranged above.
- the anchoring devices can be attached to the wall using a drilling robot. At least holes for attaching the anchoring devices can be drilled by the drilling robot.
- the drilling robot can produce varying intermediate spaces in a particularly simple manner, since a drilling head of the drilling robot can be precisely controlled.
- the drilling robot can precisely drill a fully variable drilling plan with different gaps adapted to the local load.
- the lengths of the gaps may be smaller at or near a lower end of the portion than at or near an upper end of the portion. At the lower end of the range, the stress can be greater than at the upper end. The lengths of the gaps can increase from bottom to top. This means that fewer anchoring devices can be used at the upper end than at the lower end. With fewer anchoring devices, material can be saved at the upper end.
- anchoring devices adapted to the local load can be used.
- the anchoring devices can be dimensioned smaller from bottom to top. The use of materials can also be reduced due to the anchoring devices with smaller dimensions at the top.
- the lengths of the gaps can vary in increments. In this case, several consecutive spaces can be the same over the partial area and then a jump to a larger or smaller space can take place.
- the locally constant gaps can be adapted to an average local load in the area.
- the local gaps that remain the same can easily be drilled using a drilling template.
- a different drill template guide can be used for each gap in the gap.
- different drilling templates can be used.
- the dependency of the length of the gaps on the local load is monotonically decreasing.
- the pit area of the rail system and the sub-area of the rail system mentioned together can form more than half the length of the rail system and in particular form essentially the entire length of the rail system.
- the rail system essentially consists of the pit area and the partial area in which the length of the gaps varies.
- the driving area can also include other sub-areas.
- the load can be so small, for example, that the length of the gaps is limited to a maximum value by other conditions, for example the length of an individual piece of rail.
- the length of the gaps no longer necessarily decreases monotonically for increasing loads, but changes back and forth, for example, between a larger value and a smaller value.
- This sub-area preferably accounts for less than half of the entire rail system.
- the lengths of the gaps can be smaller in the pit area than in the partial area of the rail system.
- Additional anchoring devices can be arranged in the pit area. More anchoring devices can be arranged in the pit area than would be necessary due to the local loading.
- the anchoring devices can have uniform lengths of the gaps in the pit area.
- the local loads can be increased by side loads that rarely occur.
- the lateral loads can arise, for example, during a buffer run if the cabin is asymmetrically loaded during the buffer run.
- the asymmetrical loading creates a torque when the cab hits the buffer located centrally in the pit area. This torque acts as a lateral force on the rail and can be diverted into the building or the wall through the additional anchoring devices.
- the additional anchoring devices can be used to safely prevent damage to the rail during a buffer run.
- the lengths of the intermediate spaces can decrease monotonically in the sub-area mentioned, depending on a dead weight of the rail arranged locally above.
- the rail's own weight can be the main factor in the load. Lateral loads can be constant over the section.
- the rail can slide axially through the anchorage means.
- the rail can slide through the anchoring device when an axial force is greater than a holding force of the anchoring device.
- the holding force can be smaller than a dead weight of the rail arranged locally above.
- the rail can weigh 22 kilograms per meter.
- the rail can slide through the anchoring device at 300 to 600 Newtons, which corresponds to a weight of 30 to 60 kilograms.
- the anchoring device can therefore guide the rail in a horizontal or lateral direction and allow the rail to move in a vertical or axial direction relative to the anchoring device.
- the rail Due to the axial mobility, the rail locally carries its own weight, which is arranged above and which increases continuously from top to bottom.
- the dead weight can be introduced into the foundation at the lower end of the rail.
- the vertical mobility makes it possible, for example, to compensate for differences in the thermal expansion of the rail and the building and/or settlement of the building.
- the self-weight arranged locally above must not be greater than a buckling load.
- the buckling load can be the load at which the rail buckles sideways in the gap.
- the buckling load can therefore include that force or load that acts in the direction of the rail.
- the buckling load depends on a free length of the rail between two anchoring devices.
- the free length corresponds to the gap.
- the buckling load can also depend on a profile of the rail.
- the profile can have a preferred direction of buckling, for example.
- the rail In the preferred direction of buckling, the rail has a minimal buckling load.
- Euler's buckling load formula the allowable buckling load is proportional to the inverse squared of the free length of rail between two anchorage devices.
- the lengths of the gaps can be inversely proportional to the square root of the self-weight located locally above.
- FIG. 1 shows an illustration of a rail system according to an embodiment.
- the rail system 100 has at least one vertically aligned rail 102 and a multiplicity of anchoring devices 104 .
- the anchoring devices 104 connect the rail 102 to at least one wall 106 of a building.
- the anchoring devices 104 run essentially horizontally between the rail 102 and the wall 106.
- the anchoring devices 104 are arranged with load-dependent intermediate spaces 110 in a partial area 108 of the rail system 100 .
- the gaps 110 are dependent on a local load 112 of the rail 102.
- the rail 102 bridges the gaps 110 freely.
- the load 112 is a total force made up of different forces.
- the load consists of horizontal forces and vertical forces.
- the load 112 increases from top to bottom due to a self-weight of the rail 102 .
- a local weight of the rail 102 adds up from all of them parts of the rail 102 arranged above. Therefore, the gaps 110 in the partial area 108 become smaller from top to bottom.
- the interstices 110 in a pit area 114 of the rail system 100 are smaller than in the sub-area 108.
- the interstices 110 are constant, in contrast to the sub-area 108.
- the gaps 110 do not change as a function of the local load 112. More anchoring devices 104 are arranged in the pit area 114 than would be required due to the local load 112.
- anchors 104 are clamped to rail 102 using clips 116 . If a force in the direction of the rail 102 is greater than a frictional force of the clip 116, the rail 102 slips through the clip 116 in the axial direction. Likewise, the rail 102 can shrink or lengthen with temperature fluctuations without loading the anchoring devices 104 with a shearing force greater than the frictional force. The rail 102 is supported in a floating manner by the clips 116 . The dead weight of the rail 102 rests on a foundation 118 of the rail system 100.
- the anchoring devices 104 are installed using a robot 120 .
- the gaps 110 are calculated as a function of the expected load 110 and the robot 120 drills fasteners for the anchoring devices 104 at appropriate intervals in the wall 106.
- the anchoring devices 104 are then attached and aligned and the rail 102 is connected to the anchoring devices 104.
- the distance between the rail clamps is adjusted for different loads.
- more brackets are set, i.e. at a smaller distance. So far, the brackets have been installed at the same distance along the entire elevator. Except in the pit area. More brackets are often installed there, since extremely large forces are introduced into the rail there during a buffer run.
- bracket to bracket increases continuously from bottom to top, since the compressive load and thus the risk of buckling decreases with increasing height.
- a robot can follow a drilling plan very precisely. By hand, the same distance would always be maintained.
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21207947 | 2021-11-12 | ||
| PCT/EP2022/079748 WO2023083603A1 (de) | 2021-11-12 | 2022-10-25 | Schienensystem für eine aufzuganlage und verfahren zum herstellen eines solchen schienensystems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4429992A1 true EP4429992A1 (de) | 2024-09-18 |
| EP4429992B1 EP4429992B1 (de) | 2025-05-21 |
Family
ID=78617279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22821307.0A Active EP4429992B1 (de) | 2021-11-12 | 2022-10-25 | Schienensystem für eine aufzuganlage und verfahren zum herstellen eines solchen schienensystems |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4429992B1 (de) |
| CN (1) | CN118234676A (de) |
| WO (1) | WO2023083603A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574980A (en) | 1978-12-04 | 1980-06-05 | Fujitec Kk | Method of installing elevator |
| FI20090502A7 (fi) | 2009-12-22 | 2011-06-23 | Kone Corp | Hissi, johdekiinnike ja menetelmä |
| JP2013151336A (ja) | 2012-01-24 | 2013-08-08 | Hitachi Ltd | エレベーター装置 |
| EP3118151B1 (de) | 2015-07-17 | 2019-06-12 | KONE Corporation | Aufzugsführungsschienenklammer und verfahren zur befestigung einer führungsschiene |
| JP7344161B2 (ja) * | 2020-03-16 | 2023-09-13 | 株式会社日立ビルシステム | レール位置決めシステム |
-
2022
- 2022-10-25 WO PCT/EP2022/079748 patent/WO2023083603A1/de not_active Ceased
- 2022-10-25 EP EP22821307.0A patent/EP4429992B1/de active Active
- 2022-10-25 CN CN202280074717.3A patent/CN118234676A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN118234676A (zh) | 2024-06-21 |
| EP4429992B1 (de) | 2025-05-21 |
| WO2023083603A1 (de) | 2023-05-19 |
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