CA3091119C - Green elevator system using weightless ropes traction concept and related applications - Google Patents
Green elevator system using weightless ropes traction concept and related applications Download PDFInfo
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- CA3091119C CA3091119C CA3091119A CA3091119A CA3091119C CA 3091119 C CA3091119 C CA 3091119C CA 3091119 A CA3091119 A CA 3091119A CA 3091119 A CA3091119 A CA 3091119A CA 3091119 C CA3091119 C CA 3091119C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
A portion of the energy used by typical rope elevators is for moving ropes themselves, which can be heavy in tall elevator shafts; rack and pinion self-climbing elevators are slow moving and noisy; and rope-climbing self-climbing elevators face issues like the weight of their ropes, the system required to secure these ropes in place and the impossibility to control the vibrations in the ropes. The present invention aims to overcome these limitations. It relates to a self-climbing elevator comprising: an elevator car disposed within a hoist-way and including a traction system that operatively engages stationary traction ropes in order to move the elevator car; and at least one pair of magnetic vertical bars affixed in the hoist-way and configured to magnetically engage and support the stationary traction ropes. The present elevator is also configured to move down gravitationally and, in the process, recuperate energy by means of a generator.
Description
Green Elevator System Using Weightless Ropes Traction Concept and Related Applications
2. Technical Field
3. The present invention relates to self-climbing elevators; and to a system of magnetic vertical bars configured to support the weight of the stationary ropes used by the same.
4. Background of the Invention
5. Today, the typical movement of elevator cars up or down in its hoist-way is facilitated by means of traction ropes systems. The rope traction machines of such a system use a large quantity of energy, and a lot of electricity is needed just for moving the ropes to facilitate the car function. The old traction system works well, and has reasonable maintenance cost. However, a rope-mounted elevator system has a serious drawback, if it has to be employed for a super-tall building as an express elevator. If the elevator shaft is taller than 400 meters, the weight of the ropes is in excess of 35 tons, and the energy needed to move the elevator car is high power inefficiency, stressing the electricity bill for the buildings using this system. There are more types of self-climbing elevators in service today, like the rack and pinion traction system, and some failed passenger elevators projects trying to use rope climbing as a traction system. There are serious limitations of those systems, like the rack and pinion technology, which is very noisy and slow moving, and as a result is used only as an exterior elevator during building construction. The attempts to use rope self-climbing in passenger elevators failed to be embraced by the vertical transportation Industry for very important technical issues, like the weight of their stationary ropes, the system required to secure them in place, the impossibility to control the ropes vibrations, etc.
In order to be functional, the conventional rope traction systems are known to have a space to house for example, a machine room, and counterweight system in place. All of those limitations are overcome by this invention.
In order to be functional, the conventional rope traction systems are known to have a space to house for example, a machine room, and counterweight system in place. All of those limitations are overcome by this invention.
6. For a long time the customers of the most elevator projects have attempted to address those limitations by proposing a new elevator traction system. Any new elevator project have to have a more efficient traction integration devices in which the machine-less room, contra-weightless system, and the envision to put back electricity on the building greed by using the gravitational kinetic energy induced by the weight of the elevator car in moving down operation, to be a norm for any new elevator project. To date, there is not any such design system to be considered as a break-throw, concept, and proved to be feasible, and able to lead to a new revolution for the vertical transportation industry.
Date Recue/Date Received 2023-03-02 = 7. Disclosure of the invention 8. Is the object of this invention to provide a self-propelled climbing elevator, with a magnetic vertical bars system, to able to magnetically support on its face the entire weight of the stationary rope traction in place.
9. Another object of this invention is to create a new elevator system in which the traction system is able to facilitate the elevator projects to be machine-less room, contra-weightless, and designed to capture more than 85 percent of gravitational kinetic energy in a descending move of the elevator car.
10. Another scope of this invention is to create a very flexible stationary ropes traction system able to be applied for all types of elevators, like: passenger elevators, commercial elevators, and freight elevators.
11. Another very important scope of this invention is to apply the new traction concept for high-speed express elevators employed for super-tall buildings, envisioned to travel 1000, or 2000 plus meters in one trip, and to accept double deck cars, or multiple elevators in the same hoist-way.
12. Another scope of this invention is to employ the new traction concept for the modernization of the vertical transportation system in the existing buildings, creating larger elevator cars in the existing elevators hoists-way space, increasing the passenger's car capacity, and efficiency.
13. According to the present invention the elevator hoist-way (elevator shaft), has at least one pair of magnetic bars attached to the hoist-way walls, and adapted to hold through its magnets tile system, the stationary traction rope in place. The position and the number of the magnetic vertical bars in the elevator shaft hoist-way depending on the elevator system to be employed. In this aspect the passenger elevators might have only one pair of vertical magnetic bars, positioned in the opposite corners (cross-over), or in a mirror in the middle of the elevator hoist-way, etc. The commercials and industrial elevators might have two pairs of magnetic vertical bars systems, meaning that each corner of the hoist-way is served by one magnetic vertical bar. Some heavy duty elevator projects might have three pairs of magnetic vertical bars positioned in all four corners, and in the mirror of the hoist-way walls, etc. Each vertical magnetic bar, (by the magnet tiles function) will magnetically hold in place at least one stationary rope on it. For safety reasons each vertical magnetic bar section will hoist (hold in place) two, or multiple magnetic stationary ropes. Further the stationary rope system will be tensioned on the bottom and on the top of the elevator hoist-way (shaft). The magnetic vertical bars structure frames could be constructed by inexpensive curtain sheets of metal sections, bolted directly into the elevator hoist-way walls. For a better vertical alignment, the magnetic vertical bars will may employed a desired numbers of brackets (spacers), bolted directly into the elevator hoist-way walls. The linear vertical magnets tiles (plates) sections will be installed by gluing or screwing them in place, (or the like) on each magnetic vertical bars frame system, which are bolted into the elevator hoist-way walls. Most preferably those said tile magnets will be a permanent magnets system. To save magnets materials, Date Recue/Date Received 2023-03-02 some elevator projects might use a designated vertical space (gaps) between tile magnets installed on each magnetic vertical bar's magnet frames. This embodiment is applied especially for projects using conventional steel stationary rope traction systems, having very strong magnetic capability. Other elevator projects using less magnetically traction rope systems, like the composite steel flat ropes, covered in flexible nonmagnetic shields, the space between the magnet tiles installed on the magnetic vertical bars frames will be smaller, or absent creating a continuous wall of vertical magnets on the magnetic vertical bars. Design engineering team will determine the size of the said magnetic vertical bars, and the magnets sections configuration (sizes, and thickness of them) installed in the elevator hoist-way in order to fit any elevator project.
14. According to the present invention an elevator car is moving vertically (up, or down) in the elevator hoist-way by the use of at least one pair of mechanical interdependent traction sheaves drums system. Each sheave traction drum is envisioned to be rotating with the same ratio in an opposite direction by the functioning of a 1 to 1 ratio gearbox transmission system.
The rope climbing traction systems ready to be described here, are designed to be mounted mostly preferable on the roof of the elevator car (car top end). Some special projects (like a double deck elevator system employed for super-tall building) might have a double rope climbing machine traction system (double pairs of sheaves traction drums), envisioned to be mounted one on the top end, and another, one on the bottom end of the elevator car. In this case the both rope climbing machine traction (four traction drums) have to operate synchronized. The sheave drums traction system is designed to engage the stationary ropes by wrap-around them at 360 or 720 degree manner, according to the designated elevator project. The preferred embodiment is referring to a passenger elevator designed to employ the most simple and inexpensive stationary rope climbing traction system. In this aspect a single pair traction sheave drums is designed to be turned in the opposite direction, and in this way it is allowing the vertical rope climbing movement of the elevator car in its hoist-way. This vertical movement is made possible by the operation of the one 1 to 1 ratio gearbox transmissjon system, ( preferably positioned in the middle length of the dual contra-rotating shafts assembly) mounted in between, and mechanically connecting each driving contra-rotating shafts forming a mechanical device named: a dual traction contra-rotating shafts assembly. This is designed to be connected, and to transmit the rotational power to the corresponding sheave drums traction system. At each front end of the dual contra-rotating driving shaft assembly is mounted the one corresponding sheave drum traction (some mentioned special elevator projects might have a one traction sheave drum at each end of the said dual traction shafts).
In this embodiment the entire traction system, like the sheaves traction drums, the 1 to1 ratio transmission gearbox, and its dual contra-rotating driving shafts, is designed to be powered by the only one traction motor (mover). The traction motor is designed to transmit its rotational mechanical torqued power, to the primary contra-rotating shaft assembly, (the 1 to 1 ratio gearbox transmission and its driving shaft system), and all the way to the traction drums assembly. For better driving motor thrust on the front end of the each, dual contra-rotating driving shafts assembly is mounted a corresponding planetary gearbox assembly unit, connecting the planetary box, and the sheaves drums with an a 1 to 7 trust ratio between the contra-rotating dual shaft assembly, and the sheave drums. Part of planetary gear box, is designed to be rotated when the elevator car is moved up, and other part of it is designed to rotated when the elevator car is moved down, allowing the sheave drums to be rotated either way. The location of the said Date Recue/Date Received 2023-03-02 planetary gearbox could be mounted inside the traction drums, meaning that there would be one planetary gearbox for each sheave traction drum. In this design configuration the planetary gearbox mounted inside of each sheave traction drum has one part of it rotating at the same speed with the dual contra rotating 1 to 1 shafts assembly, and other part rotating the corresponding sheave drum with 7 to 1ratio increasing the output trust. Further, the traction system is preferable to be electrically powered by a catenary bus bar, and a pantograph-like pick-up power system, attached to the elevator car. Please Note: the catenary-pantograph system is very schematically represented in Fig 2a. In the preferred embodiment, the power storage device consists of a high-density capacitors system, or for some projects, other power storage devices might be employed. A logical application to use high-density capacitors electricity storage device is for super-tall buildings express elevators projects. In this way for a short time, a large amount of the electricity is allowed to be released quickly to power the main traction motor, (motors), permitting a super-fast acceleration of the said express elevator, without overloading the domestic power supply of the building grid. In this way is created a dual power supply configuration, like the line power supply in combination with the supercapacitors electricity storage device. In this design configuration, a designing engineering team can create a unique moving elevator algorithm system, allowing that said express elevator to accelerate at super high speed, and creating the possibility of the express elevator to travel more than 1000 meters in less than 40 seconds.
15. This new concept of elevator traction system is envisioned not to be just a machine-less room, contra-weightless, but to be the most power saver in today's vertical transportation industry. By entraining the traction motor to turn in reverse, and the flywheel-governor-generator assembly to turn when the elevator is descending by gravity, being installed on one-way crank bearing systems, allowing it to rotate when the elevator car is descending. In this way is possible to recuperate and return more than 85 percent of the electricity back on the building electrical grid, by collecting a dual electricity power, like the electricity power created by the traction motor in reverse, combined with the electricity power produced by rotation of the flywheel-governor-generator assembly. In this way, the said express elevator could be connected at a green energy source.
16. In operation the new traction system is designed to facilitate the elevator car to descend gravitationally. In this embodiment the passenger elevator car described here is designed to be moved down gravitationally. The purpose for this move is to put back into the building grid more than 85 percent of electricity that was used before by the traction system in operation at the time the elevator was ascending. The invented system, in order to be feasible, and practical, on the dual contra-rotating shafts assembly, is installed a one-way crank bearing gears system. On said one way bearing assembly is mounted the utility brake assembly, and the 1 to18 ratio speed multiplication gearbox system, designed to turn the flywheel-governor-generator assembly. The planetary gears mounted inside the traction sheave drums, are not stationary either the elevator is ascending or descending. When the elevator car is ascending, by the function of the one way crank bearings assembly, all the mechanical components rotating on it, like the 1 to 18 rotational speed multiplication gearbox system part of the flywheel-generator-governor assembly, and the utility breaks, are stationary. When the elevator car is in descending operation, by the said functioning of the one way crank bearing assembly system, all those mechanical components installed on it, like the 1 to18 speed multiplication gearbox part of the flywheel-Date Recue/Date Received 2023-03-02 governor-generator assembly, and the utility brakes, start to rotate (comes alive) by gravity. All those described devices are designed to rotate one-way crank for their entire life.
At any descending command, the elevator car is allowed to move from its parking position by the operation of the utility brakes. As soon as the brakes are released, the elevator car is starting to move down gravitationally, and by the functioning of the one way crank bearings system, is driving the 1 to 18 speed multiplication gearbox, accelerating the flywheel-governor-generator assembly. This assembly starts a progressive acceleration, and is adjusted to reach the nominal constant descending speed requested by the project customer. The nominal descending speed is adjustable to fit any elevator project, from a slow moving elevator on low-rise buildings up to a high-speed elevator for super-tall towers. The main driving motor is turning into the reverse direction by gravity, and in the process is producing electricity. By the gravitational kinetic power produced by the descending car, the sheave traction drums assembly will rotate in a descending mode, and in the process will turn the 1 to 7 ratio planetary gearbox, the dual contra-rotating shafts traction assembly, the 1 to 1 ratio gearbox transmission, and the main traction motor in reverse with the same speed 1 to 7 ratio output as the elevator car was in the ascending movement. As a result, the dual contra-rotating shaft traction assembly, and the main motor have the same speed ratio either way, the elevator car is moving up by the utility power, or down, by gravity. In this design configuration there is created a dual electrical power generation system, like the electricity produced by the 1 to 18 ratio flywheel-governor-generator assembly, and the electricity created by the main traction 1 to7 ratio speed of the main traction motor in reverse. An elevator car operating without contra-weight creates a lot of down speed acceleration to be addressed. This invention solved this problem by introducing a complex device named the analog speed limit governor, part of the 1 to 18 ratio gearbox flywheel-governor-generator assembly. In this way, the elevator car produces as much electricity as possible when the car is descending.
17. A very important component of this embodiment is the analog speed limit governor very conveniently installed on the said dual coptra-rotating shafts traction assembly, mounted on the said one way crank bearings system. The governor body itself, in order to be functional, and physically able to control the descending speed of the elevator car, is employing two essential components: the first one is referring to a rotatory flying spring brakes system, mounted on the corresponding one way crank bearings, installed on the generator shaft in line, but not connected with the dual contra-rotating shaft assembly. Please Note: The generator shaft and the flying rotatory governor's spring brakes have the same speed. The second main component of the governor body is the stator breaks device. How do the two said components work together in order to be capable to monitor the speed of the descending elevator car? A mechanical design answer is to use the high-speed rotational inertia of the flying sprig brakes, rotating inside the governor body stator. Those flying brake shoes are spring connected with the shaft of the governor body. In operation, by high speed (1 to 18 ) rotation, those flying brakes shoes will push themselves upward, and by rotational inertia, will meet, and thatch the stator governor body brakes shoes, preventing the car a runaway acceleration, and to create a desired nominal speed of the descending elevator car. In this way the governor's flying brakes physically will control the speed of the descending of the elevator car. The operation of flying brakes shoes, and the governor body stator brake is serving a dual purpose: to create a desire nominal speed of the descending elevator, and to act as a safety device controlling the down speed acceleration in any situation like, in the event of the totally lost Date. Recue/Date Received 2023-03-02 of the electricity power, together with the all other safety device used today in the vertical transportation industry. In this unique unwanted situation, the elevator car will descend gravitationally only with the nominal speed, down to the bottom of the hoist-way. In practice by adjusting the distance between the flying brakes rotor and the governor body stator brakes, it will created a very versatile nominal descending speed of the elevator car designed to fit any elevator project. This described governor is acting as a nominal analog speed limit device, and is not designed to bring the descending elevator car to complete stop. Its purpose is to create only a nominal desired speed limit of the descending elevator car, requested by project customers. To bring the descending elevator car to a complete stop, and in parking position, the utility brakes will be activated.
There are not any brakes necessary to stop the ascending elevator car. Just by reducing, or cutting the power supply of the traction motor, the elevator car will stop itself, by the upward gravitational inertia. These and other arrangements and advantages will become obvious to those skilled in the art having appreciated the flexibility and functionality provided by the elevator system according to the present invention.
18. Brief Description of the Drawings 19. Fig.1 shows the preferred embodiment of the present invention without the surrounding hoist-way walls, and the elevator car guide rails.
20. Fig.2.a shows a more detailed plan view of the preferred embodiment traction system exposing the sheave drums traction arrangement, and its related gears system.
21. Fig.3 shows a side elevation of the sheave traction system arrangement, from Fig.10, and 11 exposing the related mechanical gears system.
22. Fig.4 shovOs a magnified section of the magnetic vertical bars sections, bolted directly into the elevator hoist-way walls shaft.
23. Fig.5 shows a front side elevation of the magnetic vertical bars assembly, exposing the stationary ropes arrangement on the magnetic vertical bars section.
24. Fig.6 shows one of the sheave traction drums engaging a stationary rope on the magnetic vertical bar exposed section.
25. Fig.7.a shows the sectional side of the preferred embodiment exposing the all mechanical components arrangements installed on the top (roof) of the elevator car.
26. Fig.7 shows a sectional side of the flying wheel- governor-generator assembly, part of the second embodiment.
27. Fig.8 shows a continuation of the side parts, mechanical arrangement from Fig. 7, containing the sheave traction drum assembly, and two utility disc brake assemblies.
Date Rccue/Date Received 2023-03-02 28. Fig.9 is a schematic side elevation of the traction system installed on top of the elevator car, part of the second embodiment mechanical design arrangement.
29. Fig.10 is a schematic representation of the traction system, showing the rotational direction of the traction gears, exposing its rotation direction in ascending of the elevator car 30. Fig.11 is a schematic representation of the traction system showing the rotational direction of the traction system gears, in a descending of the elevator car 100.
31. Best Mode for Carrying Out of the Invention 32. Referring now to the drawing in particular to fig. 1, a first preferred embodiment according to the present invention is described in detail. Fig. 1 shows an elevator car 100 positioned within a hoist-way shaft (not shown). A pair of magnetic vertical bar sections 124a and 124b are configured to have a magnetic capability in order to holds the weight of the stationary ropes, on its exposed magnets tiles such that they are able to hold in place the seeing pairs of stationary ropes 120/124 and 126/128. Each pair of ropes is tensioned at the top end and at the bottom of the vertical hoist-way shaft preferably using conventional rope tensioning systems devices 128, 130, 132 and 140.The main parts of the traction system 2 are shown schematically on top (roof) of the elevator car 100. (Please note, that the representation of the fraction system 2 is very schematic in fig.1, as it is intended to show only the traction motors, and the dual contra-rotating shafts of the traction assembly, that are connected directly with the pair of contra-rotating sheave drums).
Referring now to particular Figs. 2.a, and Fig.3 enumerated the all parts, and describing the functionality of the preferred embodiment of this invention. An electrical motor 138 is driving the main shaft 148a, of a dual contra-rotating shafts assembly, comprised of a first shaft 148a and a second shaft 148b and the 1 to 1 ratio gearbox speed transmission assembly, 152 located there between,(Please note, that the 1 to 1ratio gearbox speed transmission unit, assembly shown in fig. 2a needs only two transmission gears wheels), in order to operate, shown In Fig.2.a, and in this way is connects the first driving shaft 148a to the second driving shaft 148b. The gearbox 152, the 1 to 1 transmission having a two or four gear configuration, is designed to turn the dual contra-rotating driving shafts assembly in the opposite direction. At the opposite ends of the driving shafts 148a and 148b are, installed the ropes climbing sheaves 156a and 156b. The connections between each and the rope are made a 1 to 7 ratio rotational speed multiplication, planetary gearbox and the related gears 136a and 136b.
(Please note that the all planetary gearbox units and the related gears are very schematically represented on all drawing figures).
In this configuration, the traction motor 138 is rotated 7times faster than sheaves traction drums, and is creating all the necessary thrust to move the elevator car up at any desired speed. On the other end of the contra-rotating shaft 148b, in line with the shaft 40, does Flywheel-Governor-Generator assembly comprise: a 1 to 18--speed multiplication gearbox including gears 34, 36 and 38; governor body assembly stator and its fly brakes 44 (Please note: the governor body stator, and its fly brakes are noted together as 44, in Fig. 2a, and fig. 7a); and a governor-generator flywheel 46 (noted FW in fig. 7a). The
Date Recue/Date Received 2023-03-02 = 7. Disclosure of the invention 8. Is the object of this invention to provide a self-propelled climbing elevator, with a magnetic vertical bars system, to able to magnetically support on its face the entire weight of the stationary rope traction in place.
9. Another object of this invention is to create a new elevator system in which the traction system is able to facilitate the elevator projects to be machine-less room, contra-weightless, and designed to capture more than 85 percent of gravitational kinetic energy in a descending move of the elevator car.
10. Another scope of this invention is to create a very flexible stationary ropes traction system able to be applied for all types of elevators, like: passenger elevators, commercial elevators, and freight elevators.
11. Another very important scope of this invention is to apply the new traction concept for high-speed express elevators employed for super-tall buildings, envisioned to travel 1000, or 2000 plus meters in one trip, and to accept double deck cars, or multiple elevators in the same hoist-way.
12. Another scope of this invention is to employ the new traction concept for the modernization of the vertical transportation system in the existing buildings, creating larger elevator cars in the existing elevators hoists-way space, increasing the passenger's car capacity, and efficiency.
13. According to the present invention the elevator hoist-way (elevator shaft), has at least one pair of magnetic bars attached to the hoist-way walls, and adapted to hold through its magnets tile system, the stationary traction rope in place. The position and the number of the magnetic vertical bars in the elevator shaft hoist-way depending on the elevator system to be employed. In this aspect the passenger elevators might have only one pair of vertical magnetic bars, positioned in the opposite corners (cross-over), or in a mirror in the middle of the elevator hoist-way, etc. The commercials and industrial elevators might have two pairs of magnetic vertical bars systems, meaning that each corner of the hoist-way is served by one magnetic vertical bar. Some heavy duty elevator projects might have three pairs of magnetic vertical bars positioned in all four corners, and in the mirror of the hoist-way walls, etc. Each vertical magnetic bar, (by the magnet tiles function) will magnetically hold in place at least one stationary rope on it. For safety reasons each vertical magnetic bar section will hoist (hold in place) two, or multiple magnetic stationary ropes. Further the stationary rope system will be tensioned on the bottom and on the top of the elevator hoist-way (shaft). The magnetic vertical bars structure frames could be constructed by inexpensive curtain sheets of metal sections, bolted directly into the elevator hoist-way walls. For a better vertical alignment, the magnetic vertical bars will may employed a desired numbers of brackets (spacers), bolted directly into the elevator hoist-way walls. The linear vertical magnets tiles (plates) sections will be installed by gluing or screwing them in place, (or the like) on each magnetic vertical bars frame system, which are bolted into the elevator hoist-way walls. Most preferably those said tile magnets will be a permanent magnets system. To save magnets materials, Date Recue/Date Received 2023-03-02 some elevator projects might use a designated vertical space (gaps) between tile magnets installed on each magnetic vertical bar's magnet frames. This embodiment is applied especially for projects using conventional steel stationary rope traction systems, having very strong magnetic capability. Other elevator projects using less magnetically traction rope systems, like the composite steel flat ropes, covered in flexible nonmagnetic shields, the space between the magnet tiles installed on the magnetic vertical bars frames will be smaller, or absent creating a continuous wall of vertical magnets on the magnetic vertical bars. Design engineering team will determine the size of the said magnetic vertical bars, and the magnets sections configuration (sizes, and thickness of them) installed in the elevator hoist-way in order to fit any elevator project.
14. According to the present invention an elevator car is moving vertically (up, or down) in the elevator hoist-way by the use of at least one pair of mechanical interdependent traction sheaves drums system. Each sheave traction drum is envisioned to be rotating with the same ratio in an opposite direction by the functioning of a 1 to 1 ratio gearbox transmission system.
The rope climbing traction systems ready to be described here, are designed to be mounted mostly preferable on the roof of the elevator car (car top end). Some special projects (like a double deck elevator system employed for super-tall building) might have a double rope climbing machine traction system (double pairs of sheaves traction drums), envisioned to be mounted one on the top end, and another, one on the bottom end of the elevator car. In this case the both rope climbing machine traction (four traction drums) have to operate synchronized. The sheave drums traction system is designed to engage the stationary ropes by wrap-around them at 360 or 720 degree manner, according to the designated elevator project. The preferred embodiment is referring to a passenger elevator designed to employ the most simple and inexpensive stationary rope climbing traction system. In this aspect a single pair traction sheave drums is designed to be turned in the opposite direction, and in this way it is allowing the vertical rope climbing movement of the elevator car in its hoist-way. This vertical movement is made possible by the operation of the one 1 to 1 ratio gearbox transmissjon system, ( preferably positioned in the middle length of the dual contra-rotating shafts assembly) mounted in between, and mechanically connecting each driving contra-rotating shafts forming a mechanical device named: a dual traction contra-rotating shafts assembly. This is designed to be connected, and to transmit the rotational power to the corresponding sheave drums traction system. At each front end of the dual contra-rotating driving shaft assembly is mounted the one corresponding sheave drum traction (some mentioned special elevator projects might have a one traction sheave drum at each end of the said dual traction shafts).
In this embodiment the entire traction system, like the sheaves traction drums, the 1 to1 ratio transmission gearbox, and its dual contra-rotating driving shafts, is designed to be powered by the only one traction motor (mover). The traction motor is designed to transmit its rotational mechanical torqued power, to the primary contra-rotating shaft assembly, (the 1 to 1 ratio gearbox transmission and its driving shaft system), and all the way to the traction drums assembly. For better driving motor thrust on the front end of the each, dual contra-rotating driving shafts assembly is mounted a corresponding planetary gearbox assembly unit, connecting the planetary box, and the sheaves drums with an a 1 to 7 trust ratio between the contra-rotating dual shaft assembly, and the sheave drums. Part of planetary gear box, is designed to be rotated when the elevator car is moved up, and other part of it is designed to rotated when the elevator car is moved down, allowing the sheave drums to be rotated either way. The location of the said Date Recue/Date Received 2023-03-02 planetary gearbox could be mounted inside the traction drums, meaning that there would be one planetary gearbox for each sheave traction drum. In this design configuration the planetary gearbox mounted inside of each sheave traction drum has one part of it rotating at the same speed with the dual contra rotating 1 to 1 shafts assembly, and other part rotating the corresponding sheave drum with 7 to 1ratio increasing the output trust. Further, the traction system is preferable to be electrically powered by a catenary bus bar, and a pantograph-like pick-up power system, attached to the elevator car. Please Note: the catenary-pantograph system is very schematically represented in Fig 2a. In the preferred embodiment, the power storage device consists of a high-density capacitors system, or for some projects, other power storage devices might be employed. A logical application to use high-density capacitors electricity storage device is for super-tall buildings express elevators projects. In this way for a short time, a large amount of the electricity is allowed to be released quickly to power the main traction motor, (motors), permitting a super-fast acceleration of the said express elevator, without overloading the domestic power supply of the building grid. In this way is created a dual power supply configuration, like the line power supply in combination with the supercapacitors electricity storage device. In this design configuration, a designing engineering team can create a unique moving elevator algorithm system, allowing that said express elevator to accelerate at super high speed, and creating the possibility of the express elevator to travel more than 1000 meters in less than 40 seconds.
15. This new concept of elevator traction system is envisioned not to be just a machine-less room, contra-weightless, but to be the most power saver in today's vertical transportation industry. By entraining the traction motor to turn in reverse, and the flywheel-governor-generator assembly to turn when the elevator is descending by gravity, being installed on one-way crank bearing systems, allowing it to rotate when the elevator car is descending. In this way is possible to recuperate and return more than 85 percent of the electricity back on the building electrical grid, by collecting a dual electricity power, like the electricity power created by the traction motor in reverse, combined with the electricity power produced by rotation of the flywheel-governor-generator assembly. In this way, the said express elevator could be connected at a green energy source.
16. In operation the new traction system is designed to facilitate the elevator car to descend gravitationally. In this embodiment the passenger elevator car described here is designed to be moved down gravitationally. The purpose for this move is to put back into the building grid more than 85 percent of electricity that was used before by the traction system in operation at the time the elevator was ascending. The invented system, in order to be feasible, and practical, on the dual contra-rotating shafts assembly, is installed a one-way crank bearing gears system. On said one way bearing assembly is mounted the utility brake assembly, and the 1 to18 ratio speed multiplication gearbox system, designed to turn the flywheel-governor-generator assembly. The planetary gears mounted inside the traction sheave drums, are not stationary either the elevator is ascending or descending. When the elevator car is ascending, by the function of the one way crank bearings assembly, all the mechanical components rotating on it, like the 1 to 18 rotational speed multiplication gearbox system part of the flywheel-generator-governor assembly, and the utility breaks, are stationary. When the elevator car is in descending operation, by the said functioning of the one way crank bearing assembly system, all those mechanical components installed on it, like the 1 to18 speed multiplication gearbox part of the flywheel-Date Recue/Date Received 2023-03-02 governor-generator assembly, and the utility brakes, start to rotate (comes alive) by gravity. All those described devices are designed to rotate one-way crank for their entire life.
At any descending command, the elevator car is allowed to move from its parking position by the operation of the utility brakes. As soon as the brakes are released, the elevator car is starting to move down gravitationally, and by the functioning of the one way crank bearings system, is driving the 1 to 18 speed multiplication gearbox, accelerating the flywheel-governor-generator assembly. This assembly starts a progressive acceleration, and is adjusted to reach the nominal constant descending speed requested by the project customer. The nominal descending speed is adjustable to fit any elevator project, from a slow moving elevator on low-rise buildings up to a high-speed elevator for super-tall towers. The main driving motor is turning into the reverse direction by gravity, and in the process is producing electricity. By the gravitational kinetic power produced by the descending car, the sheave traction drums assembly will rotate in a descending mode, and in the process will turn the 1 to 7 ratio planetary gearbox, the dual contra-rotating shafts traction assembly, the 1 to 1 ratio gearbox transmission, and the main traction motor in reverse with the same speed 1 to 7 ratio output as the elevator car was in the ascending movement. As a result, the dual contra-rotating shaft traction assembly, and the main motor have the same speed ratio either way, the elevator car is moving up by the utility power, or down, by gravity. In this design configuration there is created a dual electrical power generation system, like the electricity produced by the 1 to 18 ratio flywheel-governor-generator assembly, and the electricity created by the main traction 1 to7 ratio speed of the main traction motor in reverse. An elevator car operating without contra-weight creates a lot of down speed acceleration to be addressed. This invention solved this problem by introducing a complex device named the analog speed limit governor, part of the 1 to 18 ratio gearbox flywheel-governor-generator assembly. In this way, the elevator car produces as much electricity as possible when the car is descending.
17. A very important component of this embodiment is the analog speed limit governor very conveniently installed on the said dual coptra-rotating shafts traction assembly, mounted on the said one way crank bearings system. The governor body itself, in order to be functional, and physically able to control the descending speed of the elevator car, is employing two essential components: the first one is referring to a rotatory flying spring brakes system, mounted on the corresponding one way crank bearings, installed on the generator shaft in line, but not connected with the dual contra-rotating shaft assembly. Please Note: The generator shaft and the flying rotatory governor's spring brakes have the same speed. The second main component of the governor body is the stator breaks device. How do the two said components work together in order to be capable to monitor the speed of the descending elevator car? A mechanical design answer is to use the high-speed rotational inertia of the flying sprig brakes, rotating inside the governor body stator. Those flying brake shoes are spring connected with the shaft of the governor body. In operation, by high speed (1 to 18 ) rotation, those flying brakes shoes will push themselves upward, and by rotational inertia, will meet, and thatch the stator governor body brakes shoes, preventing the car a runaway acceleration, and to create a desired nominal speed of the descending elevator car. In this way the governor's flying brakes physically will control the speed of the descending of the elevator car. The operation of flying brakes shoes, and the governor body stator brake is serving a dual purpose: to create a desire nominal speed of the descending elevator, and to act as a safety device controlling the down speed acceleration in any situation like, in the event of the totally lost Date. Recue/Date Received 2023-03-02 of the electricity power, together with the all other safety device used today in the vertical transportation industry. In this unique unwanted situation, the elevator car will descend gravitationally only with the nominal speed, down to the bottom of the hoist-way. In practice by adjusting the distance between the flying brakes rotor and the governor body stator brakes, it will created a very versatile nominal descending speed of the elevator car designed to fit any elevator project. This described governor is acting as a nominal analog speed limit device, and is not designed to bring the descending elevator car to complete stop. Its purpose is to create only a nominal desired speed limit of the descending elevator car, requested by project customers. To bring the descending elevator car to a complete stop, and in parking position, the utility brakes will be activated.
There are not any brakes necessary to stop the ascending elevator car. Just by reducing, or cutting the power supply of the traction motor, the elevator car will stop itself, by the upward gravitational inertia. These and other arrangements and advantages will become obvious to those skilled in the art having appreciated the flexibility and functionality provided by the elevator system according to the present invention.
18. Brief Description of the Drawings 19. Fig.1 shows the preferred embodiment of the present invention without the surrounding hoist-way walls, and the elevator car guide rails.
20. Fig.2.a shows a more detailed plan view of the preferred embodiment traction system exposing the sheave drums traction arrangement, and its related gears system.
21. Fig.3 shows a side elevation of the sheave traction system arrangement, from Fig.10, and 11 exposing the related mechanical gears system.
22. Fig.4 shovOs a magnified section of the magnetic vertical bars sections, bolted directly into the elevator hoist-way walls shaft.
23. Fig.5 shows a front side elevation of the magnetic vertical bars assembly, exposing the stationary ropes arrangement on the magnetic vertical bars section.
24. Fig.6 shows one of the sheave traction drums engaging a stationary rope on the magnetic vertical bar exposed section.
25. Fig.7.a shows the sectional side of the preferred embodiment exposing the all mechanical components arrangements installed on the top (roof) of the elevator car.
26. Fig.7 shows a sectional side of the flying wheel- governor-generator assembly, part of the second embodiment.
27. Fig.8 shows a continuation of the side parts, mechanical arrangement from Fig. 7, containing the sheave traction drum assembly, and two utility disc brake assemblies.
Date Rccue/Date Received 2023-03-02 28. Fig.9 is a schematic side elevation of the traction system installed on top of the elevator car, part of the second embodiment mechanical design arrangement.
29. Fig.10 is a schematic representation of the traction system, showing the rotational direction of the traction gears, exposing its rotation direction in ascending of the elevator car 30. Fig.11 is a schematic representation of the traction system showing the rotational direction of the traction system gears, in a descending of the elevator car 100.
31. Best Mode for Carrying Out of the Invention 32. Referring now to the drawing in particular to fig. 1, a first preferred embodiment according to the present invention is described in detail. Fig. 1 shows an elevator car 100 positioned within a hoist-way shaft (not shown). A pair of magnetic vertical bar sections 124a and 124b are configured to have a magnetic capability in order to holds the weight of the stationary ropes, on its exposed magnets tiles such that they are able to hold in place the seeing pairs of stationary ropes 120/124 and 126/128. Each pair of ropes is tensioned at the top end and at the bottom of the vertical hoist-way shaft preferably using conventional rope tensioning systems devices 128, 130, 132 and 140.The main parts of the traction system 2 are shown schematically on top (roof) of the elevator car 100. (Please note, that the representation of the fraction system 2 is very schematic in fig.1, as it is intended to show only the traction motors, and the dual contra-rotating shafts of the traction assembly, that are connected directly with the pair of contra-rotating sheave drums).
Referring now to particular Figs. 2.a, and Fig.3 enumerated the all parts, and describing the functionality of the preferred embodiment of this invention. An electrical motor 138 is driving the main shaft 148a, of a dual contra-rotating shafts assembly, comprised of a first shaft 148a and a second shaft 148b and the 1 to 1 ratio gearbox speed transmission assembly, 152 located there between,(Please note, that the 1 to 1ratio gearbox speed transmission unit, assembly shown in fig. 2a needs only two transmission gears wheels), in order to operate, shown In Fig.2.a, and in this way is connects the first driving shaft 148a to the second driving shaft 148b. The gearbox 152, the 1 to 1 transmission having a two or four gear configuration, is designed to turn the dual contra-rotating driving shafts assembly in the opposite direction. At the opposite ends of the driving shafts 148a and 148b are, installed the ropes climbing sheaves 156a and 156b. The connections between each and the rope are made a 1 to 7 ratio rotational speed multiplication, planetary gearbox and the related gears 136a and 136b.
(Please note that the all planetary gearbox units and the related gears are very schematically represented on all drawing figures).
In this configuration, the traction motor 138 is rotated 7times faster than sheaves traction drums, and is creating all the necessary thrust to move the elevator car up at any desired speed. On the other end of the contra-rotating shaft 148b, in line with the shaft 40, does Flywheel-Governor-Generator assembly comprise: a 1 to 18--speed multiplication gearbox including gears 34, 36 and 38; governor body assembly stator and its fly brakes 44 (Please note: the governor body stator, and its fly brakes are noted together as 44, in Fig. 2a, and fig. 7a); and a governor-generator flywheel 46 (noted FW in fig. 7a). The
7 Date Reyue/Date Received 2023-03-02 flywheel-generator-governor assembly is designed not just to monitor the speed of the car 100, but it is employed to physically control the descending speed of the elevator car in any wanted or unwanted situation. The governor-flywheel-generator assembly (40, 34, 36, 38, 44, and 46) is designed to be rotated one way on bearings K2-K4, and is activated only when the elevator car is moving down. Further on the driving shaft 148b, independently of the shaft 40 but in line with shaft 148b, is installed a triple disc brake system 154.a, 154.b. 154.e. (Fig.2a and 7a), the brake discs assembly is operated by one or multiple brake calipers systems. The brake discs 154.a,154.b,154.e, are designed to rotate one way crank on the bearing, K.1. In this configuration when the elevator car is moved up, the utility discs brakes assembly is stationary. The entire traction driving assembly is held in place on top (roof) of the elevator car platform by multiple mechanical brackets,142.a to 142.j. Further the elevator car 100 is guided in the elevator hoist-way 144 by a pair of conventional guide rails 150.a, and 150.b. Fig.3 shows a side view of the car 100 and exposes the visible side of the traction components, like the vertical stationary ropes 120-124, tensioned by the tensioning devices 128,140. On top (roof) of the elevator car 100 is visible a driving motor 138, traction sheave drums 156a and 156b, portion of the 1 to1 ratio gearbox transmission 152 (please note that the traction system visible in Fig.3. is referring to the embodiment in which the transmission of the 1to lgearbox is using a four gears wheels system designed to rotate in opposite direction, part of the dual contra-rotating shafts assembly), a portion of the bracket assembly 142 and a designated empty space 160. The empty space 160 is envisioned for having a dual practical interest; like to create a phonic isolation, and a storage space device, designed to house the energy storage device, like a battery pack, supercapacitors etc.
33. Fig. 4, Fig. 5, and Fig.6 show in more detail the most important part of this invention, defined as the magnetic vertical bars 124a and 124b previously shown in fig.l.
Fig. 4 shows wall 144, and the brackets 28a and 28b that are bolted into it. The magnetic vertical bars are comprised of frames 26 that are metallic or nonmetallic, and that are secured in place by the brackets 28a and 28b. On the frames 26 are installed the magnet tiles (plates) 24 (MG). The magnet tiles 24 are bolted, or glued on the frame 26.The magnet tiles 24 (MG) could be installed on the magnet frame with vertical gaps 34 or without vertical gaps, depending on any particular elevator project. Fig. 5 shows that the magnets tile 24 are installed with a designated vertical gap (vertical spaces) 34 on the frame 26. The magnet frame 26 is adapted to hold the magnet tiles in place, and further on the face of the said magnet tiles, to magnetically hold in place the stationary traction ropes 120 and 124. Fig. 6 shows the side view of the magnetic vertical bars assembly 124 showed in fig. 1. The stationary traction ropes 120 and 124 (124 not shown) are by the traction sheave drum 156, engaged, and the arrows indicate the direction of the engagement (the sheave drum 156a is not shown in fig. 6, only the stationary rope 120 and its direction of engagement are). Fig. 7a shows a detailed preferred design of the flywheel-governor-generator assembly (40 ,34, 36, 38, 44, and 46).The flywheel-governor-generator assembly, is driven by the shaft 40 as shown in fig.2a and 7a, is installed a 1 to 18 speed multiplication ratio gearbox system, wherein the gear wheel 34 is rotating one way on the shaft 148b the and the gear 36 is rotated on the stationary shaft 52. The 1 to 18 speed multiplication gearbox unit comprises gears 34, 36 and 38. The driving gear wheel 34 is receiving the rotational thrust from the described dual shaft contra-rotating traction system 148a, 148b, and is adapted to rotate the 1 to 18 speed multiplication gearbox unit with the governor-generator-flywheel assembly, on the bearings K.2, K3, K4. Gearwheel 36 is receiving its rotational thrust
33. Fig. 4, Fig. 5, and Fig.6 show in more detail the most important part of this invention, defined as the magnetic vertical bars 124a and 124b previously shown in fig.l.
Fig. 4 shows wall 144, and the brackets 28a and 28b that are bolted into it. The magnetic vertical bars are comprised of frames 26 that are metallic or nonmetallic, and that are secured in place by the brackets 28a and 28b. On the frames 26 are installed the magnet tiles (plates) 24 (MG). The magnet tiles 24 are bolted, or glued on the frame 26.The magnet tiles 24 (MG) could be installed on the magnet frame with vertical gaps 34 or without vertical gaps, depending on any particular elevator project. Fig. 5 shows that the magnets tile 24 are installed with a designated vertical gap (vertical spaces) 34 on the frame 26. The magnet frame 26 is adapted to hold the magnet tiles in place, and further on the face of the said magnet tiles, to magnetically hold in place the stationary traction ropes 120 and 124. Fig. 6 shows the side view of the magnetic vertical bars assembly 124 showed in fig. 1. The stationary traction ropes 120 and 124 (124 not shown) are by the traction sheave drum 156, engaged, and the arrows indicate the direction of the engagement (the sheave drum 156a is not shown in fig. 6, only the stationary rope 120 and its direction of engagement are). Fig. 7a shows a detailed preferred design of the flywheel-governor-generator assembly (40 ,34, 36, 38, 44, and 46).The flywheel-governor-generator assembly, is driven by the shaft 40 as shown in fig.2a and 7a, is installed a 1 to 18 speed multiplication ratio gearbox system, wherein the gear wheel 34 is rotating one way on the shaft 148b the and the gear 36 is rotated on the stationary shaft 52. The 1 to 18 speed multiplication gearbox unit comprises gears 34, 36 and 38. The driving gear wheel 34 is receiving the rotational thrust from the described dual shaft contra-rotating traction system 148a, 148b, and is adapted to rotate the 1 to 18 speed multiplication gearbox unit with the governor-generator-flywheel assembly, on the bearings K.2, K3, K4. Gearwheel 36 is receiving its rotational thrust
8 Date Reyue/Date Received 2023-03-02 power from the gear wheel 34.The gear wheel 38 is designed to be the main driving gear of the shaft 40, and is the main driver of the flywheel-governor-generator assembly. The shaft 40, being part of the flywheel-governor-generator assembly unit, is envisioned to be the main shaft rotor of the flywheel-governor-generator assembly. To dissipate the rotational kinetic energy, the flywheel 46, the generator 66 rotor, the governor assembly 44 are rotated one way crank on bearing K2, K.3, and K.4, shown in fig.2a, and 7a. The purpose of this configuration is to prevent the utility brakes system from wearing out when the elevator car 100 is descending, and has the command to stop at any particular floor. In operation after the elevator car stop at any floor, the dual contra-rotating shafts 148a and 148b come to a stop, but because of the one way crank bearings K2, K.3 and K.4, the flywheel 46, the generator rotor, and the shaft 40 driving the governor-flywheel-generator assembly are still rotating for 10 to 15 seconds to dissipate the gravitational rotational kinetic energy, generating electricity, and protecting the utility brakes. This described mechanical component is rotated at a high speed (1 to 18 ratios) in the same direction with the shaft 40. The governor stator 44 is installed on the mainframe on top of the elevator car 100. Further a system of brackets 142.a to 142.1, showed in fig 2a and fig. 7a, are designed to secure all the described mechanical devices in place on top of the elevator car 100.
The entire gearbox speed multiplication system, including the flywheel-governor-generator assembly, is designed to be stationary when the elevator car 100 is moved up or in a parking position. Conversely, the governor system, the flywheel 46, and generator 66 are activated gravitationally when the elevator car 100 is descending, creating electricity. Fig.8 represents a continuation of the driving shaft 148a from Fig.7. On the driving shaft 148a, shown in figs. 7 and 8, is installed several mechanical assemblies, including a dual one way rotating utility disc brake assembly 154a and 154b installed on one way crank bearings. In operation the brake discs assembly are stationary when the elevator car 100 is moving up.
The utility brakes become activated when the elevator 100 is moving down, preferably gravitationally. As shown in fig. 8 a gear wheel 48 is installed on the dual contra-rotating shaft 148b. At the front end of the driving shaft 148b is installed the traction sheave drums assembly 156a. (156b not being shown in fig.8) The rotational speed of the traction sheave drum 156.a (156.b not being shown in fig. 8) is reduced by 1 to 7 ratio, between the driving motor 138 (not showing) and the dual contra-rotating driving shafts assembly 148.a and 148.b. In Fig.8, the shaft 148a is a continuation of the shaft 148a from fig.7. Inside the traction sheaves 156a and 156b is a schematic representation of the planetary gearbox systems 136.a and 136.b.
(planetary gearbox 136b not shown in fig.8). In this configuration the reduced speed of the sheave traction drums 156.a and 156.b, is turned into high torque (1 to 7 ratios) and is creating the necessary ascending power needed in order to engage the stationary ropes 120 and 124 (not shown in fig. 7).
Further the entire mechanical assembly from Fig. 8 is held together by the mechanical brackets assembly 142a to 142j. All the moving parts shown in Fig. 7 are served by the appropriate bearings system, like bearings 54a, 54b and 54c. The mechanical bearings 54.a, 54.b, 54.c, 54.d, 54.e, 54.f, and 54.g are shown in fig. 7a. All the mechanical components in fig.7a are held together by the brackets assembly 142.a,142.b, 142.c, 142.d, 142.e and 142.f. Fig.9 is a magnified representation of the second embodiment described in Fig. 3. Fig.9 shows the rotational direction of the visible mechanical elements, like the traction motor 138 rotating in the opposite direction with the traction sheaves 156a,156b, facilitated by the gearbox system 152. The mechanical configuration of the 1 to 1 ratio gearbox 152 is not limited four gears, as depicted in fig. 9. Some elevator projects may be configured with a two gear 1 to 1 ratio (as described in Fig.2.a, and Fig.7.a,) to secure the same contra-rotating transmission of the
The entire gearbox speed multiplication system, including the flywheel-governor-generator assembly, is designed to be stationary when the elevator car 100 is moved up or in a parking position. Conversely, the governor system, the flywheel 46, and generator 66 are activated gravitationally when the elevator car 100 is descending, creating electricity. Fig.8 represents a continuation of the driving shaft 148a from Fig.7. On the driving shaft 148a, shown in figs. 7 and 8, is installed several mechanical assemblies, including a dual one way rotating utility disc brake assembly 154a and 154b installed on one way crank bearings. In operation the brake discs assembly are stationary when the elevator car 100 is moving up.
The utility brakes become activated when the elevator 100 is moving down, preferably gravitationally. As shown in fig. 8 a gear wheel 48 is installed on the dual contra-rotating shaft 148b. At the front end of the driving shaft 148b is installed the traction sheave drums assembly 156a. (156b not being shown in fig.8) The rotational speed of the traction sheave drum 156.a (156.b not being shown in fig. 8) is reduced by 1 to 7 ratio, between the driving motor 138 (not showing) and the dual contra-rotating driving shafts assembly 148.a and 148.b. In Fig.8, the shaft 148a is a continuation of the shaft 148a from fig.7. Inside the traction sheaves 156a and 156b is a schematic representation of the planetary gearbox systems 136.a and 136.b.
(planetary gearbox 136b not shown in fig.8). In this configuration the reduced speed of the sheave traction drums 156.a and 156.b, is turned into high torque (1 to 7 ratios) and is creating the necessary ascending power needed in order to engage the stationary ropes 120 and 124 (not shown in fig. 7).
Further the entire mechanical assembly from Fig. 8 is held together by the mechanical brackets assembly 142a to 142j. All the moving parts shown in Fig. 7 are served by the appropriate bearings system, like bearings 54a, 54b and 54c. The mechanical bearings 54.a, 54.b, 54.c, 54.d, 54.e, 54.f, and 54.g are shown in fig. 7a. All the mechanical components in fig.7a are held together by the brackets assembly 142.a,142.b, 142.c, 142.d, 142.e and 142.f. Fig.9 is a magnified representation of the second embodiment described in Fig. 3. Fig.9 shows the rotational direction of the visible mechanical elements, like the traction motor 138 rotating in the opposite direction with the traction sheaves 156a,156b, facilitated by the gearbox system 152. The mechanical configuration of the 1 to 1 ratio gearbox 152 is not limited four gears, as depicted in fig. 9. Some elevator projects may be configured with a two gear 1 to 1 ratio (as described in Fig.2.a, and Fig.7.a,) to secure the same contra-rotating transmission of the
9 Date Reyue/Date Received 2023-03-02 dual contra-rotating shafts traction system. The arrows depicting the direction of the dual contra-rotating shafts system show that the elevator car 100 is moving up, climbing the rope system 120, and 124, (126 and 128 not shown). The mechanical driving system visible in Fig. 9 is held in place by the visible brackets system 142a, 142b, and 142c. Visible under the mechanical traction system is an empty space 160 envisioned to house the power storage devices, and to create a sound isolation space designed to protect the passengers from any noise induced by the traction system in operation.
34. Fig. 10 shows a schematic view of the traction system of figs. 2a and 7a, but with added arrows denoting the movement direction of the rotational parts when the elevator car 100 is in the moving up operation. In this configuration, the driving motor 138 rotates in the clockwise direction, the primary shaft 148a transmits the rotational power to the 1 to 1 ratio gearbox assembly 152 and, and the planetary gears system 136a turns the traction sheave drums 156.a. In the moving up operation, the brakes discs 154.a and 154.b are allowed to stay stationary by means of the one way crank bearing k.1 (not shown) such that. The dual contra-rotating shafts 148.a and 148.b are free to rotate and engage only the sheave traction drums 156a and 156b. The 1 to 1 ratio gearbox 152 the driving shaft 148b in 148a, the opposite direction. The shaft 148.b turns the planetary gearbox system 136.b of the sheave traction drum 156.b in the same direction as itself. Further, in the moving up operation, the driving shaft 148.6 does not turn (rotate) the one way crank brakes disc 154.a,154.b, and the 1 to 18 ratio speed multiplication of the flywheel-governor-generator assembly, allowing to stay stationary by the function of the one way crank bearing system K.2,and K.3 (not shown). This simple mechanical traction system has a low number of moving parts, when the elevator car 100 is moving up. In this configuration only the driving motor 138, the transmission 1 to 1 gearbox 152, and the sheaves traction drivers' drums 156.a, and 156.b, will be rotated engaging the stationary ropes 120, 124, 126, and 128. The power catenary-pantograph panel assembly 94, shown in fig.2a, powers the driving motor 138.
The traction system is further is served by the necessary bearings system, assembly (not shown), and the entire system is mounted on the platform 64, (shown in fig.2a.) on the top (roof) of the elevator car.
35. Fig. 11 shows a schematic view of the rotational configuration of the traction system when the elevator car is moving down. In this configuration the elevator car 100 is designed to descend gravitationally. As the car 100 starts to move down, the driving motor 138 is turning in reverse by gravity, producing electricity. Before the elevator car 100 starts to descend, the disc brake systems 154a and 154b slowly release the pressure over the shoes inside the brake calipers (not shown), allowing the car 100 to move down. In the process, the main gearbox 152 will turn the driving shafts 148a and 148b in opposite directions allowing the one way bearings crank flywheel-governor-generator assembly (40, 34, 36, 38, 44, and 46) and the 1 to 18 ratio speed multiplication gearbox (34, 36 and 38) shown in figs 2a and 7a to rotate. Further the flywheel 46, and its shaft 40 (shown in fig.
2a, and 7a) will turn the generator shaft with the same speed as the flywheel 46, (the system is shown in Fig.2.a,and 7a).The high speed rotation of the flywheel-generator-governor assembly 46 will create a desired descending mechanical resistance, preventing the elevator car from accelerating out of control, and protecting the utility braking system. This movement has a dual practical interest; the more is multiplied the speed in reverse of the traction motor and of the, flywheel-generator-governor assembly, the more electricity is Date Recue/Date Received 2023-03-02 produced and the less energy is needed for the braking system to stop the elevator car. While the preferred embodiments have been described herein, it is acknowledged that the generally or specific features may vary in part or totally, without departing from the scope of the presently claimed invention.
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34. Fig. 10 shows a schematic view of the traction system of figs. 2a and 7a, but with added arrows denoting the movement direction of the rotational parts when the elevator car 100 is in the moving up operation. In this configuration, the driving motor 138 rotates in the clockwise direction, the primary shaft 148a transmits the rotational power to the 1 to 1 ratio gearbox assembly 152 and, and the planetary gears system 136a turns the traction sheave drums 156.a. In the moving up operation, the brakes discs 154.a and 154.b are allowed to stay stationary by means of the one way crank bearing k.1 (not shown) such that. The dual contra-rotating shafts 148.a and 148.b are free to rotate and engage only the sheave traction drums 156a and 156b. The 1 to 1 ratio gearbox 152 the driving shaft 148b in 148a, the opposite direction. The shaft 148.b turns the planetary gearbox system 136.b of the sheave traction drum 156.b in the same direction as itself. Further, in the moving up operation, the driving shaft 148.6 does not turn (rotate) the one way crank brakes disc 154.a,154.b, and the 1 to 18 ratio speed multiplication of the flywheel-governor-generator assembly, allowing to stay stationary by the function of the one way crank bearing system K.2,and K.3 (not shown). This simple mechanical traction system has a low number of moving parts, when the elevator car 100 is moving up. In this configuration only the driving motor 138, the transmission 1 to 1 gearbox 152, and the sheaves traction drivers' drums 156.a, and 156.b, will be rotated engaging the stationary ropes 120, 124, 126, and 128. The power catenary-pantograph panel assembly 94, shown in fig.2a, powers the driving motor 138.
The traction system is further is served by the necessary bearings system, assembly (not shown), and the entire system is mounted on the platform 64, (shown in fig.2a.) on the top (roof) of the elevator car.
35. Fig. 11 shows a schematic view of the rotational configuration of the traction system when the elevator car is moving down. In this configuration the elevator car 100 is designed to descend gravitationally. As the car 100 starts to move down, the driving motor 138 is turning in reverse by gravity, producing electricity. Before the elevator car 100 starts to descend, the disc brake systems 154a and 154b slowly release the pressure over the shoes inside the brake calipers (not shown), allowing the car 100 to move down. In the process, the main gearbox 152 will turn the driving shafts 148a and 148b in opposite directions allowing the one way bearings crank flywheel-governor-generator assembly (40, 34, 36, 38, 44, and 46) and the 1 to 18 ratio speed multiplication gearbox (34, 36 and 38) shown in figs 2a and 7a to rotate. Further the flywheel 46, and its shaft 40 (shown in fig.
2a, and 7a) will turn the generator shaft with the same speed as the flywheel 46, (the system is shown in Fig.2.a,and 7a).The high speed rotation of the flywheel-generator-governor assembly 46 will create a desired descending mechanical resistance, preventing the elevator car from accelerating out of control, and protecting the utility braking system. This movement has a dual practical interest; the more is multiplied the speed in reverse of the traction motor and of the, flywheel-generator-governor assembly, the more electricity is Date Recue/Date Received 2023-03-02 produced and the less energy is needed for the braking system to stop the elevator car. While the preferred embodiments have been described herein, it is acknowledged that the generally or specific features may vary in part or totally, without departing from the scope of the presently claimed invention.
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Claims (17)
1. An elevator system comprising:
a vertical hoist-way; stationary traction ropes extending vertically in the hoist-way; an elevator car disposed within the hoist-way and including a traction system operatively engaging the stationary traction ropes in order to selectively move the elevator car upwards and downwards along a length of the stationary traction ropes; at least one pair of magnetic vertical bars affixed in the hoist-way and configured to magnetically engage and support the stationary traction ropes; wherein said traction system comprises a pair of contra-rotating shafts adapted to transmit the rotational thrust from one or multiple driving motors to at least a pair of contra-rotating sheaves drums adapted to engage said stationary ropes.
a vertical hoist-way; stationary traction ropes extending vertically in the hoist-way; an elevator car disposed within the hoist-way and including a traction system operatively engaging the stationary traction ropes in order to selectively move the elevator car upwards and downwards along a length of the stationary traction ropes; at least one pair of magnetic vertical bars affixed in the hoist-way and configured to magnetically engage and support the stationary traction ropes; wherein said traction system comprises a pair of contra-rotating shafts adapted to transmit the rotational thrust from one or multiple driving motors to at least a pair of contra-rotating sheaves drums adapted to engage said stationary ropes.
2. An elevator system, according to claim 1, wherein the traction system further comprises a 1 tol ratio gearbox system adapted to rotate said pair of contra-rotating shafts so that said pair of contra-rotating sheaves drums are rotated in opposite directions and engage the stationary ropes in the opposite directions and; wherein the traction systems is installed on the top of the elevator car, or the traction system is installed on the bottom of the elevator car, or the traction system comprise a first traction system installed on the top of the elevator car working in synchronized manner with a second traction system installed on the bottom of the elevator car.
3. An elevator system;
according to claim 1, further comprising a plurality of bracket sections bolted into the elevator hoist-way, said brackets attaching the magnetic vertical bars into the hoist-way.
according to claim 1, further comprising a plurality of bracket sections bolted into the elevator hoist-way, said brackets attaching the magnetic vertical bars into the hoist-way.
4. An elevator system;
according to any one of claims 1 to 3, comprising magnetic tiles on the magnetic vertical bars, wherein said magnetic tiles are mounted with or without a vertical gap between adjacent ones of the magnetic tiles.
according to any one of claims 1 to 3, comprising magnetic tiles on the magnetic vertical bars, wherein said magnetic tiles are mounted with or without a vertical gap between adjacent ones of the magnetic tiles.
5. An elevator system;
according to claim 4, wherein said magnetic tiles are either a permanent or non-permanent magnet system.
according to claim 4, wherein said magnetic tiles are either a permanent or non-permanent magnet system.
6. An elevator system;
according to claim 4 or 5, wherein the stationary traction ropes are magnetically held onto the surface of the magnetic tiles.
according to claim 4 or 5, wherein the stationary traction ropes are magnetically held onto the surface of the magnetic tiles.
7. An elevator system;
according to claim 1, wherein said stationary ropes are steel ropes having a round cross-sectional shape.
according to claim 1, wherein said stationary ropes are steel ropes having a round cross-sectional shape.
8. An elevator system;
according to claim 1, wherein said stationary ropes are flat steel ropes coated in composite nonmagnetic materials.
according to claim 1, wherein said stationary ropes are flat steel ropes coated in composite nonmagnetic materials.
9. An elevator car;
according to claim 1 wherein the magnetic vertical bars are positioned at two corners of the elevator hoist-way in cross-over manner or positioned at the center of two sides of the elevator hoist-way in a mirrored manner;
the magnetic vertical bars are configured to support the stationary ropes in place and extend through a range of travel of the elevator car in the hoist-way; and further comprising: a governor- flywheel-generator assembly which includes a flywheel operably coupled to an analog speed limit device configured to limit the elevator car speed by means of rotary inertia brakes and to a generator, a power storage device located on board the elevator car, and a pantograph-catenary power pickup system configured to direct electrical power from a power supply to the elevator car.
according to claim 1 wherein the magnetic vertical bars are positioned at two corners of the elevator hoist-way in cross-over manner or positioned at the center of two sides of the elevator hoist-way in a mirrored manner;
the magnetic vertical bars are configured to support the stationary ropes in place and extend through a range of travel of the elevator car in the hoist-way; and further comprising: a governor- flywheel-generator assembly which includes a flywheel operably coupled to an analog speed limit device configured to limit the elevator car speed by means of rotary inertia brakes and to a generator, a power storage device located on board the elevator car, and a pantograph-catenary power pickup system configured to direct electrical power from a power supply to the elevator car.
10. An elevator system;
according to claim 1, wherein each one of the sheave drums is connected to a corresponding one of the contra rotating shaft by a corresponding gearbox having a reduction ratio.
according to claim 1, wherein each one of the sheave drums is connected to a corresponding one of the contra rotating shaft by a corresponding gearbox having a reduction ratio.
11. An elevator system;
according to claim 10, wherein the gearbox is a planetary gearbox.
according to claim 10, wherein the gearbox is a planetary gearbox.
12. An elevator system;
according to claim 10 or 11, wherein the reduction ratio is 1 to 7 so that the torque provided by the one more driving motors is multiplied by 7.
according to claim 10 or 11, wherein the reduction ratio is 1 to 7 so that the torque provided by the one more driving motors is multiplied by 7.
13. An elevator system;
according to claim 9, wherein said flywheel-governor-generator assembly is turning at 1 to 18 speed ratio by a speed multiplier gearbox, wherein said assembly and said speed multiplier gearbox comprised a one way crank bearing system.
according to claim 9, wherein said flywheel-governor-generator assembly is turning at 1 to 18 speed ratio by a speed multiplier gearbox, wherein said assembly and said speed multiplier gearbox comprised a one way crank bearing system.
14. An elevator system;
according to claim 13, wherein by functioning of the one way crank bearing system, the speed multiplier gearbox and the flywheel-governor-generator assembly are stationary when the elevator car is in an ascending operation.
according to claim 13, wherein by functioning of the one way crank bearing system, the speed multiplier gearbox and the flywheel-governor-generator assembly are stationary when the elevator car is in an ascending operation.
15. An elevator system;
according to claim 9, further comprising a utility brake system having one or multiple discs brakes assemblies rotating on a one way crank bearing system, allowing said brakes assemblies to stay stationary when the elevator car is ascending.
according to claim 9, further comprising a utility brake system having one or multiple discs brakes assemblies rotating on a one way crank bearing system, allowing said brakes assemblies to stay stationary when the elevator car is ascending.
16. An elevator system;
according to claim 9, wherein when said elevator car is moving down gravitationally, said flywheel-governor-generator assembly generates electricity by transforming the gravitational car velocity into electricity.
according to claim 9, wherein when said elevator car is moving down gravitationally, said flywheel-governor-generator assembly generates electricity by transforming the gravitational car velocity into electricity.
17. An elevator system;
according to claim 1, wherein said stationary ropes wraps around said sheaves drums in a 360 or720 degree manner.
according to claim 1, wherein said stationary ropes wraps around said sheaves drums in a 360 or720 degree manner.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3160045A CA3160045A1 (en) | 2020-08-25 | 2020-08-25 | Magnetic stationary ropes traction elevator system |
| CA3091119A CA3091119C (en) | 2020-08-25 | 2020-08-25 | Green elevator system using weightless ropes traction concept and related applications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3091119A CA3091119C (en) | 2020-08-25 | 2020-08-25 | Green elevator system using weightless ropes traction concept and related applications |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3160045A Division CA3160045A1 (en) | 2020-08-25 | 2020-08-25 | Magnetic stationary ropes traction elevator system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA3091119A1 CA3091119A1 (en) | 2021-04-06 |
| CA3091119C true CA3091119C (en) | 2023-09-12 |
Family
ID=75381934
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3160045A Abandoned CA3160045A1 (en) | 2020-08-25 | 2020-08-25 | Magnetic stationary ropes traction elevator system |
| CA3091119A Active CA3091119C (en) | 2020-08-25 | 2020-08-25 | Green elevator system using weightless ropes traction concept and related applications |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3160045A Abandoned CA3160045A1 (en) | 2020-08-25 | 2020-08-25 | Magnetic stationary ropes traction elevator system |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA3160045A1 (en) |
-
2020
- 2020-08-25 CA CA3160045A patent/CA3160045A1/en not_active Abandoned
- 2020-08-25 CA CA3091119A patent/CA3091119C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA3160045A1 (en) | 2021-04-06 |
| CA3091119A1 (en) | 2021-04-06 |
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