CA3091119A1 - 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
- Publication number
- CA3091119A1 CA3091119A1 CA3091119A CA3091119A CA3091119A1 CA 3091119 A1 CA3091119 A1 CA 3091119A1 CA 3091119 A CA3091119 A CA 3091119A CA 3091119 A CA3091119 A CA 3091119A CA 3091119 A1 CA3091119 A1 CA 3091119A1
- Authority
- CA
- Canada
- Prior art keywords
- traction
- elevator
- ropes
- assembly
- elevator car
- 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
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
-
- 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
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
Title : Green Elevator System Using weightless Rops Traction System And Related Applications Technical Field The present invention, ( MVB system), relates to a magnetically vertical bars system able to hoist the weight of the stationary ropes for the self- climbing elevator.
Background of the Invention Today, a typical movement of the elevator cars up or down vertically in the hoist way is facilitated by almost a hundred percent by moving the traction ropes system. As a result, those rope movers are highly energy burned, and more than 45 percent of the energy is needed just for moving those ropes, to facilitate moving the elevator cars. The old traction system works well, and has reasonable maintenance cost. However a cable moved 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 more than 400 meters, the weight of the ropes exide 35 tons, and energy needed to move the elevator car is a high power burden, stressing the electricity bill for the property owner. There are more types of self climbing elevators in service today, like the rack and pinion traction system, and some failed projects trying to use the rope climbing as a traction system. There are serious limitations of those systems, like the rack and pinion system, which is very noisy and slow moving, and as a result is used only as an exterior elevator during building construction. The attempt to use rope self climbing as a passenger elevator failed to be embraced by the vertical transportation industry for a very important technical issues, like the weight of the ropes traction, the system to secured them in place , the impossibility to control the vibrations etc.Those conventionally rope traction system is known to have a space housing in order to be functional, like a machine room, and counterweight system in place. All of those limitations have to be overpassed by this invention.
For a long time designers have attempted to address those limitations by proposing a new traction system, to create a more efficient traction devices in which the machineless room, contraweightless system, and the envision to create kinetic energy when the elevator car is moved down, is expected to be a norm for future elevators projects. To date, there is not any design system ,Break-throw, engineering certified concept proved to be feasible, and to be able to lead to a new revolution for the next vertical transportation industry.
Disclosure of the invention Is the object of this invention to provide a self-propelled climbing elevator, with a magnetic hoist vertical bars system able to magnetically support the entire weight of the stationary rope traction.
Another object of this invention is to create a new elevator system in which the traction system to facilitate the elevator projects to be machineless room contraweightless, and designed to capture more than 85 percent of kinetic energy in a down move.
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 industrial elevators.
Another very important scope of this invention is to apply the new concept for high speed express elevators for super-tall buildings, designed to travel 1000, or 2000 meters in one trip, and to accept duble deck cars, or multiple elevators in the same hoist shaft.
Another scope of this invention is to employ the new traction concept for retrofitting the vertical transportation system in the existing buildings, creating larger cars in the existing elevators hoists, increasing the passengers capacity, and efficiency.
According to the present invention the elevator shaft hoistway has at least one pair of magnetic bar systems attached to the hoist walls, designed to hold the stationary rope traction in a place. The position, and the number of the magnetic bars in the shaft depending on the elevator system to be employed. In this aspect the passengers elevators might have only a pair of magnetic bars, positioned in the opposite corners, or in a minor at the middle of the hoist etc.
The commercials, and industrial elevators might have two pairs of magnetic bars systems. Some heavy duty elevator projects might have three pairs of sheaves, magnetic bars, etc. Each vertical line of magnetic bars will hoist at least one magnetically rope on it. For the safety reason each linear magnetic sheave will host two, or multiple magnetic stationary file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
ropes on it. Further the stationary rope system will be tensioned on the bottom, and on the top of the elevator shaft, preferable by certified rope tension device existing today on the market. The linear magnetic bars frames could be constructed by inexpensive cortain sheets of metal ( or other materials) sections bolted directly to the elevator shaft, or for a better vertical alignment, the metal bar sheave may employ a multitude brackets spacers, bolted on the elevator shaft walls. The linear magnets tiles sections will be installed by screws in place, or the like, on the linear magnets holder frames bolted on the elevator hoist walls. Most preferably the tiles magnets will be a permanent magnets system. To save magnets materials, some elevator projects might use a designated gap between the tiles magnets on the frame holder, especially for projects using conventional steel rope traction systems. Other elevator projects using less magnetically traction rope systems, like composite flat ropes, covered in flexible non magnetic shields, the space between the magnets on the frame will be smaller, or no gape at all, creating a continuing wall of vertical magnets.
Designer engineering team will determine the size of the said magnetic vertical bars sheave sections, in order to fit any elevator project.
According to the present invention an elevator car is provided with at least one pair of independent traction sheaves, and to be secured to the car on top, or on the car bottom. Some special projects might have a double machine traction on top, and on the bottom of the car. The sheave drums traction system is designed to engage the stationary ropes by nip-around at 360 or 720 degree, 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 traction system.
The sheave drums traction system is designed to be turned by only one traction motor, and a gear shafts assembly mechanism designed to turn the sheave drums in the opposite direction facilitating to move the car up, or down. on the stationary ropes. Further the traction system is preferable to be powered by a catenary bus bar, and a pantograph-like pick-up system attached to the car, and designed to power the apparatus traction system in place, and to power the energy storage device, needed for kick-of electrical power, to move the elevator up. In the preferred embodiment the power storage device consisted of a multiple supercapacitors system ( or other power storage device) able to release a huge voltage ,as needed for a short time to start the direct drive, or a like, motor, and to move the car up, ( this power needed configuration is applied for an algorithm when the elevator car is moving empty at at a super fast, stop, and go acceleration, for supertall buildings), and further the catenary pick-up system will take over, and power the traction system, and in the same time to recharge the supercapacitors,or other power storage device, and prepared the power needed for the next action to move the car up, or down. In this configuration the elevator car is designed to be not just machineless, room, but to be a contraweightless configuration. In this embodiment the traction main motor is designed to be direct drive and to be connected directly with the gear system designed to turn the main driving shafts assembly connected directly with the sheaves traction drums. This simple traction system could be constructed with existing certified parts available today on the market, or in some projects the driving parts have to be redesigned to fit any particular elevator project.
This new concept of elevator traction system is envisioned not to be just a machineless room, contraweightless, but to be the most power saver in today vertical transportation industry, and able to put back the power on the building greed more than 85 percent by collecting the kinetic energy, and to make the new system to be very efficient power savier, and creating the possibility to be connected at a green energy source.
In operation the new traction system is designed to facilitate the elevator car to move down gravitationally. In this embodiment the passenger elevator car pilot project is designed to be moved down gravitationally, and to collect more than 85 percent of kinetic energy. The invented system, in order to be feasible, and practical, attached to the driving shafts, is installed an multiple ,,one way" wheels, like the utility brake system, the speed multiplication gears system designed to turn the flying wheel- generator assembly, the planetary gears designed to multiply the speed of the traction motor in reverse when the elevator car is moved down. and others future mechanical components installed on transmission shaft busbar systems. When the elevator car is moving up, all those mentioned mechanical components are stationary. To move the elevator car down the utility brake system releases the pressure over the said one way wheels brake discs system, and gradually permits the car to move down controlled by the friction created by the utility brake system combined with the resistance of the multiply speed of the traction motor in reverse, and mechanical governor gears flywheel, and the generator system attached to it, to control the resistance needed to allow a certain speed of the car in moving down status. In this way the elevator car collects as much kinetic energy as possible when the car is moved down. In this configuration, in a down move, there are activated dual kinetic energy producing devices. like the driving motor in reverse, and the flywheel-generator assembly.
Another very important component of this embodiment is an on the board governor flywheel safety system in which is designed to limit the flywheel speed by multiple inertia rotary breaks shoes system acting against a stationary brake bank. This is an analog emergency brake system, and becomes active only when the elevator car is in file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
descending move, and for some reasons the car speed gets out of control. 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.
Brief Description of the Drawings Fig.1 shows the preferred embodiment of the present invention without the surrounding the hoistway, and the car guide rails.
Fig.2 shows a more detailed plan view of the preferred embodiment traction system exposing the sheave arrangement, and the related gears system Fig.3 shows a side elevation of the sheave traction system arrangement, and the related gears system.
Fig.4 shows a magnified section of a magnetic bar rope hoist assembly bolted into the elevator shaft.
Fig.5 shows a front side elevation of the magnetic bar assembly, and the stationary rope arrangement.
Fig. 6 shows one of the sheave traction drums engaging stationary ropes on the magnetical bar assembly.
Fig. 7 shows a sectional side of governor-generator assembly.
Fig. 8 shows a sectional side of the front side assembly containing the sheave assembly, and two disc brake assembly.
Fig.9 is a schematic side elevation of the traction system installed on top of the elevator car.
Fig. 10 is a schematic representation of the traction system showing the rotational direction of its parts when the car is moving up.
Fig. 11 is a schematic representation of the traction system showing the rotational direction of its parts when the car is moving down.
Best Mode for Carrying Out of the Invention Referring now to the drawing figures, and in particular to fig. 1 a first preferred embodiment according to the present invention will be described in detail. Fig. 1 shows an elevator car 100 positioned within a hoistway shaft (not showing). A pair of magnetic bars rises sections 142a-142b, and each magnetic bar, magnetically holds the weight of a pair of stationary ropes 120-124,and 126-128,. Each pair of ropes are tensioned on the top of the hoistway 130-132, and on the bottom 138-140.using conventional rope tensioning devices systems existing today on the market. On top of the elevator car 100, schematically is showing the arrangement of the main parts traction system 2. Referring now to particular Figs. 2 and 3 enumerate all the parts, and describe the functionality of the preferred embodiment of this invention. An electrical motor 138, is driving the main shaft 148a, designed to drive the 1 tol ratio transmission gearbox 152, and in this way is connected to the second driving shaft 148b. The gearbox 152 is designed to turn the main driving shafts in the opposite direction. At the opposite ends of the driving shafts 148a, and 148b, is installed the ropes driving sheaves drums 156a and 156b. The connections between the driveshaft, and the drive sheaves drums is made by a 7 to 1 ratio, of a planetary gearbox transmission 136a, and 136b. In this configuration, the traction motor 138 is rotated 7 times faster than sheaves drums, creating the necessary trust to move the elevator car up. Attached to the shaft 148b, is installed a Governor-Generator assembly 142. named the" Safe Descending Governor". The flywheel-generator-governor assembly is designed not just to monitor the speed of the car 100, but it is employed to physically control the speed of the car in emergency situations. The governor 142 is designed to be rotated one way, and is activated only when the elevator car is moving down. Further on both driving shafts 148a and 148b are installed a pair of disc brake systems 154a, and 154b. The brake discs assembly are designed to hold one or multiple brake calipers systems ( not showing). The brakes discs 154a, and 154b are designed to rotate one way. In this configuration when the elevator car is moved up, the disc brakes are stationary. The entire traction driving assembly is holded in place on top of the car by multiple brackets 142. Further the elevator car 100 is guided on the hoistway144 by a pair of conventionally guided rails rises 150. Fig.3 shows a side elevation of car 100 exposing the visible side traction components, like,the vertically stationary ropes 124-120, down tensioned by the tensioning devices 138, 140.
On top of the elevator car 100 is visible a driving motor 134, a drive sheave 136, portion of the 1 to 1 ratio gearbox transmission 152, a brackets assembly 138-142, and a designated space for the energy storage device, lake a battery pack, supercapacitors etc.
Fig. 4, Fig. 5, and Fig.6 described in detail the most important part of this invention, defined as the Magnetic bars rises assembly sections. Fig. 4 Shows a shaft hoist wall 30, and the brackets 28,and 30 bolted into it. A sheet frame system, metallic or nonmetallic magnets hoist 26, is secured in place by the brackets 28, and 30. Further on the hoist frame 26 is installed the corresponding magnets tiles 24 bolted, or glued on the frame 26.
The magnets tiles 24 could be installed file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
without any gapes ( not shown) on the frame 26, or with designated gapes, depending on any particular elevator project.
Fig. 5 Showed that in this embodiment the magnets tile 24 are installed with designated gaps on frame 26. Further on the magnetic bars assembly is magnetically attached the stationary traction ropes 22a, and 22b. 20 .Fig. 6 Shows the side view of the magnetic bar assembly 20. The stationary traction ropes 22a, and 22b ( 22b not shown ) is engaged by the traction sheave drum 32, and the arrows indicate the direction of engagement. Fig. 7 Shows a detailed prefered design of the Safe Descending Governor-Generator assembly. The governor driving shaft 32 receives rotation power from the 1 to 1 ratio gear wheel 30 part of the transmission gearbox. ( not shown).
Further on the driving shaft 32 is installed a 1 to 18 ( note: the transmission ratio differed by the purpose of the tip of the elevator project) ratio rotating multiplication mechanical gears device, proposed by a gears assembly constructed by the gear wheel 34, gear wheel 36, and gear,flying wheel 38. The gear 36 is installed on a stationary shaft 52. The driving gear wheel 34 is designed to be a one way rotationary direction gear. Attached to the flying wheel 38, is connected the rotor 40 of the generator 66. The rotor 40 of the generator 66 is designed to rotate in one way direction with the driving shaft 32. In this way it dissipates the rotational kinetic energy ( prevents the brakes system from wearing out) when the elevator car is going down, and has the command to stop. In operation after the elevator car stops after a descent command, the governor-generator flying wheel assembly 38 will be still rotated by inertia about 10 to 15 seconds, in the same direction as the driving shaft 32. has rotated it. ( like the bicycle traction wheel gear). The stator 42 of the generator 66 is installed on fixed, non rotational shaft 68. On the flying wheel 38 is installed a group of rotatory inertia flying breaks 44. In operation when the elevator car is in descending, moving the rotational flying brakes will prevent an excessive down move acceleration by touching the stationary brakes assembly 46 served by the brakes shoes 48.
Technically adjusting the space between the flying brakes 44, and the stationary brake 46 is designed to control the speed limit of the car in a down moving. The speed control is facilitated by adjusting the springs bank 50 connecting the brakes stator 46 installed on the mainframe on top of the elevator car 64.
further a system of brackets 56, 58, and 60 are designed to secure all the described mechanical devices in place on top of the elevator car. The entire gear rotary multiplication system, including the generator is designed to be in a stationary position when the elevator car 100 is moved up, or seating in a parking position. The governor system 66 is activated gravitationally when the elevator car 100 is moving down creating kinetic energy. Fig.8 represents a continuation of driving shaft 32 from Fig.7. On the driving shaft 44 is installed several mechanical assemblies, like a dual one way rotating utility disc brake assembly 52a, and 52b. In operation the brakes discs assembly is stationary, when the elevator car 100 is moving up. The utility brakes become activated when the elevator 100 is moving down, most preferable gravitationally. For further other applications, a gear wheel 48is installed on the driving shaft 44. At the front of the driving shaft 44 is installed the traction sheave drum assembly 40. The rotational speed of the traction sheave drum is reduced by 1 to 7 ratio, between the driving motor and both driving shafts.( In Fig. 7, and 8 the driving shaft 32, and it's continuation in fig 7 as driving shaft 44,), and the traction sheave, by installing a planetary gear system 56 inside the sheave traction drive drum 40. In this configuration the reduced speed of the sheave drumm 40 is translated into high torque traction of the assembly drum 40. necessary to engage the stationary rops 42. Further the entire mechanical assembly from Fig. 8 is held together by the brackets assembly 46a, 46b, and 46c. All the moving parts drawing in Fig.
7, and 8, Is served by the appropriate bearing system assembly, like bearings 54a, 54b, 54c, and 54d showing in Fig 8, and the bearing assembly 58a, 58b, and 58c. showing in Fig. 8. Fig.9 is a magnified representation of the preferred embodiment described in Fig. 3 The drawing from Fig.9 shows the rotational direction of the visible mechanical elements, like the traction motor 54 rotating in the opposite direction with the traction sheave 56, facilitated by the gear box system 50a, 50b, 50c, and 50d. This mechanical configuration is not limited only for a 1 to 1 rotational ratio, achieved by 4 gears wheels assembly system.
Some elevators projects might recommande to use only 2 Wheel gear assembly to secure the same contrarotationary traction shaft system bus.The arrows direction of the driving traction system showing that the elevator car 100 is moving up, climbing the rope system 62a, and 62b. The mechanical driving system visible in Fig. 9 is held in place by the visible brackets system 54a, 546,and 54c. Visible under the mechanical traction system, is an empty space 58 design to house the power storage devices, and to create a phonic isolation space to protect the passengers from any noise induced by the traction system in operation.
Fig. 10 shows a schematic plan view configuration of the traction system pointing to the rotational parts movement when the elevator car 100 is in the moving up status. In this configuration the driving motor by rotating in the clockwise direction, the primary shaft 62a will transmit the rotational power to thel to 1 ratio gearbox assembly 68, and to the planetary gears system 94a, further turning the traction sheave 66a, and 66b. The breaks discs 84, and 86 are stationary. So the driving shafts 62a, and 62b is rotated freely, engaging only the sheave drums assembly 66a, and 66b.
Further the main gear box 68 will turn the driving shaft 62b into the opposite direction. The shaft 62b will turn the planetary gears system 94b of the sheave traction drum 64b, in the same direction as driving shaft 62b. Further the file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
driving shaft 62b will be not turn the oneway brakes disc 82, and the 1 to 18 ratio speed multiplication of the flying wheel-generator gears assembly, This simple mechanical traction system has extremely low numbers of moving parts, when the elevator car is moving up, like the driving motor 60, transmision gears box 68, and the sheaves traction drivers drums 64a, and 64b, engaging the stationary rops 66a, and 66b. The driving motor is powered by the power panel 94.
The traction system further is served by necessary bearings system 90a, 90b, 90c and 90d plus the bearing and brakets asaambly 88,and 76, and the entire system is mounted on the platform 92 on top of the elevator car.
Fig.11 shows a schematic plan view rotational configuration of the traction system when the elevator car is moving down. In this configuration the elevator car 100 is designed to move down gravitationally. As the car starts to move down, the driving motor 60 is turning in reverse by gravity, producing kinetic power. Before the elevator car 100 starts to descend the discs breaks system 82, 84, and 86 slowly will release the pressure of the shoes inside the brake calipers ( not shown), allowing the car 100 to move down. In the process the main gear box 68 will turn the driving shaft 62b into the opposite direction, allowing the one way flying wheel generator gears assembly to become rotating, and to activate the high, 1 to 18 ratio speed multiplication of the flying wheel gears 70,72, and 74 assembly. Further the flying wheel 74, and its shaft 76 will turn the generator;s rotating shaft with the same speed as the flying wheel 74. The stator 80 is connected with its;s fix non rotating shaft. The high speed rotation of the flying wheel-generator assembly 76 created a desired descend resistance preventing the car from accelerating out of control, and stressing the utility braking system. This movement has a dual practical interest, like the more multiplied speed in reverse the traction motor, and flying wheel-generator assembly has, the more kinetic power is produced, and less energy, for the brake power is needed to stop the elevator car. While the preferred embodiments have been described herein, it is acknowledged that the specific features may vary in part or totaly, without departing from the scope of the presently claimed invention.
file:///ecprint-proclic.gc.ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
kinetic power is produced, and less energy, for the brake power is needed to stop the elevator car.
36. While the preferred embodiments have been described herein, it is acknowledged that the specific features may vary in part or totaly, without departing from the scope of the presently claimed invention.
Date Recue/Date Received 2020-08-27
Background of the Invention Today, a typical movement of the elevator cars up or down vertically in the hoist way is facilitated by almost a hundred percent by moving the traction ropes system. As a result, those rope movers are highly energy burned, and more than 45 percent of the energy is needed just for moving those ropes, to facilitate moving the elevator cars. The old traction system works well, and has reasonable maintenance cost. However a cable moved 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 more than 400 meters, the weight of the ropes exide 35 tons, and energy needed to move the elevator car is a high power burden, stressing the electricity bill for the property owner. There are more types of self climbing elevators in service today, like the rack and pinion traction system, and some failed projects trying to use the rope climbing as a traction system. There are serious limitations of those systems, like the rack and pinion system, which is very noisy and slow moving, and as a result is used only as an exterior elevator during building construction. The attempt to use rope self climbing as a passenger elevator failed to be embraced by the vertical transportation industry for a very important technical issues, like the weight of the ropes traction, the system to secured them in place , the impossibility to control the vibrations etc.Those conventionally rope traction system is known to have a space housing in order to be functional, like a machine room, and counterweight system in place. All of those limitations have to be overpassed by this invention.
For a long time designers have attempted to address those limitations by proposing a new traction system, to create a more efficient traction devices in which the machineless room, contraweightless system, and the envision to create kinetic energy when the elevator car is moved down, is expected to be a norm for future elevators projects. To date, there is not any design system ,Break-throw, engineering certified concept proved to be feasible, and to be able to lead to a new revolution for the next vertical transportation industry.
Disclosure of the invention Is the object of this invention to provide a self-propelled climbing elevator, with a magnetic hoist vertical bars system able to magnetically support the entire weight of the stationary rope traction.
Another object of this invention is to create a new elevator system in which the traction system to facilitate the elevator projects to be machineless room contraweightless, and designed to capture more than 85 percent of kinetic energy in a down move.
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 industrial elevators.
Another very important scope of this invention is to apply the new concept for high speed express elevators for super-tall buildings, designed to travel 1000, or 2000 meters in one trip, and to accept duble deck cars, or multiple elevators in the same hoist shaft.
Another scope of this invention is to employ the new traction concept for retrofitting the vertical transportation system in the existing buildings, creating larger cars in the existing elevators hoists, increasing the passengers capacity, and efficiency.
According to the present invention the elevator shaft hoistway has at least one pair of magnetic bar systems attached to the hoist walls, designed to hold the stationary rope traction in a place. The position, and the number of the magnetic bars in the shaft depending on the elevator system to be employed. In this aspect the passengers elevators might have only a pair of magnetic bars, positioned in the opposite corners, or in a minor at the middle of the hoist etc.
The commercials, and industrial elevators might have two pairs of magnetic bars systems. Some heavy duty elevator projects might have three pairs of sheaves, magnetic bars, etc. Each vertical line of magnetic bars will hoist at least one magnetically rope on it. For the safety reason each linear magnetic sheave will host two, or multiple magnetic stationary file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
ropes on it. Further the stationary rope system will be tensioned on the bottom, and on the top of the elevator shaft, preferable by certified rope tension device existing today on the market. The linear magnetic bars frames could be constructed by inexpensive cortain sheets of metal ( or other materials) sections bolted directly to the elevator shaft, or for a better vertical alignment, the metal bar sheave may employ a multitude brackets spacers, bolted on the elevator shaft walls. The linear magnets tiles sections will be installed by screws in place, or the like, on the linear magnets holder frames bolted on the elevator hoist walls. Most preferably the tiles magnets will be a permanent magnets system. To save magnets materials, some elevator projects might use a designated gap between the tiles magnets on the frame holder, especially for projects using conventional steel rope traction systems. Other elevator projects using less magnetically traction rope systems, like composite flat ropes, covered in flexible non magnetic shields, the space between the magnets on the frame will be smaller, or no gape at all, creating a continuing wall of vertical magnets.
Designer engineering team will determine the size of the said magnetic vertical bars sheave sections, in order to fit any elevator project.
According to the present invention an elevator car is provided with at least one pair of independent traction sheaves, and to be secured to the car on top, or on the car bottom. Some special projects might have a double machine traction on top, and on the bottom of the car. The sheave drums traction system is designed to engage the stationary ropes by nip-around at 360 or 720 degree, 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 traction system.
The sheave drums traction system is designed to be turned by only one traction motor, and a gear shafts assembly mechanism designed to turn the sheave drums in the opposite direction facilitating to move the car up, or down. on the stationary ropes. Further the traction system is preferable to be powered by a catenary bus bar, and a pantograph-like pick-up system attached to the car, and designed to power the apparatus traction system in place, and to power the energy storage device, needed for kick-of electrical power, to move the elevator up. In the preferred embodiment the power storage device consisted of a multiple supercapacitors system ( or other power storage device) able to release a huge voltage ,as needed for a short time to start the direct drive, or a like, motor, and to move the car up, ( this power needed configuration is applied for an algorithm when the elevator car is moving empty at at a super fast, stop, and go acceleration, for supertall buildings), and further the catenary pick-up system will take over, and power the traction system, and in the same time to recharge the supercapacitors,or other power storage device, and prepared the power needed for the next action to move the car up, or down. In this configuration the elevator car is designed to be not just machineless, room, but to be a contraweightless configuration. In this embodiment the traction main motor is designed to be direct drive and to be connected directly with the gear system designed to turn the main driving shafts assembly connected directly with the sheaves traction drums. This simple traction system could be constructed with existing certified parts available today on the market, or in some projects the driving parts have to be redesigned to fit any particular elevator project.
This new concept of elevator traction system is envisioned not to be just a machineless room, contraweightless, but to be the most power saver in today vertical transportation industry, and able to put back the power on the building greed more than 85 percent by collecting the kinetic energy, and to make the new system to be very efficient power savier, and creating the possibility to be connected at a green energy source.
In operation the new traction system is designed to facilitate the elevator car to move down gravitationally. In this embodiment the passenger elevator car pilot project is designed to be moved down gravitationally, and to collect more than 85 percent of kinetic energy. The invented system, in order to be feasible, and practical, attached to the driving shafts, is installed an multiple ,,one way" wheels, like the utility brake system, the speed multiplication gears system designed to turn the flying wheel- generator assembly, the planetary gears designed to multiply the speed of the traction motor in reverse when the elevator car is moved down. and others future mechanical components installed on transmission shaft busbar systems. When the elevator car is moving up, all those mentioned mechanical components are stationary. To move the elevator car down the utility brake system releases the pressure over the said one way wheels brake discs system, and gradually permits the car to move down controlled by the friction created by the utility brake system combined with the resistance of the multiply speed of the traction motor in reverse, and mechanical governor gears flywheel, and the generator system attached to it, to control the resistance needed to allow a certain speed of the car in moving down status. In this way the elevator car collects as much kinetic energy as possible when the car is moved down. In this configuration, in a down move, there are activated dual kinetic energy producing devices. like the driving motor in reverse, and the flywheel-generator assembly.
Another very important component of this embodiment is an on the board governor flywheel safety system in which is designed to limit the flywheel speed by multiple inertia rotary breaks shoes system acting against a stationary brake bank. This is an analog emergency brake system, and becomes active only when the elevator car is in file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
descending move, and for some reasons the car speed gets out of control. 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.
Brief Description of the Drawings Fig.1 shows the preferred embodiment of the present invention without the surrounding the hoistway, and the car guide rails.
Fig.2 shows a more detailed plan view of the preferred embodiment traction system exposing the sheave arrangement, and the related gears system Fig.3 shows a side elevation of the sheave traction system arrangement, and the related gears system.
Fig.4 shows a magnified section of a magnetic bar rope hoist assembly bolted into the elevator shaft.
Fig.5 shows a front side elevation of the magnetic bar assembly, and the stationary rope arrangement.
Fig. 6 shows one of the sheave traction drums engaging stationary ropes on the magnetical bar assembly.
Fig. 7 shows a sectional side of governor-generator assembly.
Fig. 8 shows a sectional side of the front side assembly containing the sheave assembly, and two disc brake assembly.
Fig.9 is a schematic side elevation of the traction system installed on top of the elevator car.
Fig. 10 is a schematic representation of the traction system showing the rotational direction of its parts when the car is moving up.
Fig. 11 is a schematic representation of the traction system showing the rotational direction of its parts when the car is moving down.
Best Mode for Carrying Out of the Invention Referring now to the drawing figures, and in particular to fig. 1 a first preferred embodiment according to the present invention will be described in detail. Fig. 1 shows an elevator car 100 positioned within a hoistway shaft (not showing). A pair of magnetic bars rises sections 142a-142b, and each magnetic bar, magnetically holds the weight of a pair of stationary ropes 120-124,and 126-128,. Each pair of ropes are tensioned on the top of the hoistway 130-132, and on the bottom 138-140.using conventional rope tensioning devices systems existing today on the market. On top of the elevator car 100, schematically is showing the arrangement of the main parts traction system 2. Referring now to particular Figs. 2 and 3 enumerate all the parts, and describe the functionality of the preferred embodiment of this invention. An electrical motor 138, is driving the main shaft 148a, designed to drive the 1 tol ratio transmission gearbox 152, and in this way is connected to the second driving shaft 148b. The gearbox 152 is designed to turn the main driving shafts in the opposite direction. At the opposite ends of the driving shafts 148a, and 148b, is installed the ropes driving sheaves drums 156a and 156b. The connections between the driveshaft, and the drive sheaves drums is made by a 7 to 1 ratio, of a planetary gearbox transmission 136a, and 136b. In this configuration, the traction motor 138 is rotated 7 times faster than sheaves drums, creating the necessary trust to move the elevator car up. Attached to the shaft 148b, is installed a Governor-Generator assembly 142. named the" Safe Descending Governor". The flywheel-generator-governor assembly is designed not just to monitor the speed of the car 100, but it is employed to physically control the speed of the car in emergency situations. The governor 142 is designed to be rotated one way, and is activated only when the elevator car is moving down. Further on both driving shafts 148a and 148b are installed a pair of disc brake systems 154a, and 154b. The brake discs assembly are designed to hold one or multiple brake calipers systems ( not showing). The brakes discs 154a, and 154b are designed to rotate one way. In this configuration when the elevator car is moved up, the disc brakes are stationary. The entire traction driving assembly is holded in place on top of the car by multiple brackets 142. Further the elevator car 100 is guided on the hoistway144 by a pair of conventionally guided rails rises 150. Fig.3 shows a side elevation of car 100 exposing the visible side traction components, like,the vertically stationary ropes 124-120, down tensioned by the tensioning devices 138, 140.
On top of the elevator car 100 is visible a driving motor 134, a drive sheave 136, portion of the 1 to 1 ratio gearbox transmission 152, a brackets assembly 138-142, and a designated space for the energy storage device, lake a battery pack, supercapacitors etc.
Fig. 4, Fig. 5, and Fig.6 described in detail the most important part of this invention, defined as the Magnetic bars rises assembly sections. Fig. 4 Shows a shaft hoist wall 30, and the brackets 28,and 30 bolted into it. A sheet frame system, metallic or nonmetallic magnets hoist 26, is secured in place by the brackets 28, and 30. Further on the hoist frame 26 is installed the corresponding magnets tiles 24 bolted, or glued on the frame 26.
The magnets tiles 24 could be installed file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
without any gapes ( not shown) on the frame 26, or with designated gapes, depending on any particular elevator project.
Fig. 5 Showed that in this embodiment the magnets tile 24 are installed with designated gaps on frame 26. Further on the magnetic bars assembly is magnetically attached the stationary traction ropes 22a, and 22b. 20 .Fig. 6 Shows the side view of the magnetic bar assembly 20. The stationary traction ropes 22a, and 22b ( 22b not shown ) is engaged by the traction sheave drum 32, and the arrows indicate the direction of engagement. Fig. 7 Shows a detailed prefered design of the Safe Descending Governor-Generator assembly. The governor driving shaft 32 receives rotation power from the 1 to 1 ratio gear wheel 30 part of the transmission gearbox. ( not shown).
Further on the driving shaft 32 is installed a 1 to 18 ( note: the transmission ratio differed by the purpose of the tip of the elevator project) ratio rotating multiplication mechanical gears device, proposed by a gears assembly constructed by the gear wheel 34, gear wheel 36, and gear,flying wheel 38. The gear 36 is installed on a stationary shaft 52. The driving gear wheel 34 is designed to be a one way rotationary direction gear. Attached to the flying wheel 38, is connected the rotor 40 of the generator 66. The rotor 40 of the generator 66 is designed to rotate in one way direction with the driving shaft 32. In this way it dissipates the rotational kinetic energy ( prevents the brakes system from wearing out) when the elevator car is going down, and has the command to stop. In operation after the elevator car stops after a descent command, the governor-generator flying wheel assembly 38 will be still rotated by inertia about 10 to 15 seconds, in the same direction as the driving shaft 32. has rotated it. ( like the bicycle traction wheel gear). The stator 42 of the generator 66 is installed on fixed, non rotational shaft 68. On the flying wheel 38 is installed a group of rotatory inertia flying breaks 44. In operation when the elevator car is in descending, moving the rotational flying brakes will prevent an excessive down move acceleration by touching the stationary brakes assembly 46 served by the brakes shoes 48.
Technically adjusting the space between the flying brakes 44, and the stationary brake 46 is designed to control the speed limit of the car in a down moving. The speed control is facilitated by adjusting the springs bank 50 connecting the brakes stator 46 installed on the mainframe on top of the elevator car 64.
further a system of brackets 56, 58, and 60 are designed to secure all the described mechanical devices in place on top of the elevator car. The entire gear rotary multiplication system, including the generator is designed to be in a stationary position when the elevator car 100 is moved up, or seating in a parking position. The governor system 66 is activated gravitationally when the elevator car 100 is moving down creating kinetic energy. Fig.8 represents a continuation of driving shaft 32 from Fig.7. On the driving shaft 44 is installed several mechanical assemblies, like a dual one way rotating utility disc brake assembly 52a, and 52b. In operation the brakes discs assembly is stationary, when the elevator car 100 is moving up. The utility brakes become activated when the elevator 100 is moving down, most preferable gravitationally. For further other applications, a gear wheel 48is installed on the driving shaft 44. At the front of the driving shaft 44 is installed the traction sheave drum assembly 40. The rotational speed of the traction sheave drum is reduced by 1 to 7 ratio, between the driving motor and both driving shafts.( In Fig. 7, and 8 the driving shaft 32, and it's continuation in fig 7 as driving shaft 44,), and the traction sheave, by installing a planetary gear system 56 inside the sheave traction drive drum 40. In this configuration the reduced speed of the sheave drumm 40 is translated into high torque traction of the assembly drum 40. necessary to engage the stationary rops 42. Further the entire mechanical assembly from Fig. 8 is held together by the brackets assembly 46a, 46b, and 46c. All the moving parts drawing in Fig.
7, and 8, Is served by the appropriate bearing system assembly, like bearings 54a, 54b, 54c, and 54d showing in Fig 8, and the bearing assembly 58a, 58b, and 58c. showing in Fig. 8. Fig.9 is a magnified representation of the preferred embodiment described in Fig. 3 The drawing from Fig.9 shows the rotational direction of the visible mechanical elements, like the traction motor 54 rotating in the opposite direction with the traction sheave 56, facilitated by the gear box system 50a, 50b, 50c, and 50d. This mechanical configuration is not limited only for a 1 to 1 rotational ratio, achieved by 4 gears wheels assembly system.
Some elevators projects might recommande to use only 2 Wheel gear assembly to secure the same contrarotationary traction shaft system bus.The arrows direction of the driving traction system showing that the elevator car 100 is moving up, climbing the rope system 62a, and 62b. The mechanical driving system visible in Fig. 9 is held in place by the visible brackets system 54a, 546,and 54c. Visible under the mechanical traction system, is an empty space 58 design to house the power storage devices, and to create a phonic isolation space to protect the passengers from any noise induced by the traction system in operation.
Fig. 10 shows a schematic plan view configuration of the traction system pointing to the rotational parts movement when the elevator car 100 is in the moving up status. In this configuration the driving motor by rotating in the clockwise direction, the primary shaft 62a will transmit the rotational power to thel to 1 ratio gearbox assembly 68, and to the planetary gears system 94a, further turning the traction sheave 66a, and 66b. The breaks discs 84, and 86 are stationary. So the driving shafts 62a, and 62b is rotated freely, engaging only the sheave drums assembly 66a, and 66b.
Further the main gear box 68 will turn the driving shaft 62b into the opposite direction. The shaft 62b will turn the planetary gears system 94b of the sheave traction drum 64b, in the same direction as driving shaft 62b. Further the file:///ecprint-prod.ic.gc ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
driving shaft 62b will be not turn the oneway brakes disc 82, and the 1 to 18 ratio speed multiplication of the flying wheel-generator gears assembly, This simple mechanical traction system has extremely low numbers of moving parts, when the elevator car is moving up, like the driving motor 60, transmision gears box 68, and the sheaves traction drivers drums 64a, and 64b, engaging the stationary rops 66a, and 66b. The driving motor is powered by the power panel 94.
The traction system further is served by necessary bearings system 90a, 90b, 90c and 90d plus the bearing and brakets asaambly 88,and 76, and the entire system is mounted on the platform 92 on top of the elevator car.
Fig.11 shows a schematic plan view rotational configuration of the traction system when the elevator car is moving down. In this configuration the elevator car 100 is designed to move down gravitationally. As the car starts to move down, the driving motor 60 is turning in reverse by gravity, producing kinetic power. Before the elevator car 100 starts to descend the discs breaks system 82, 84, and 86 slowly will release the pressure of the shoes inside the brake calipers ( not shown), allowing the car 100 to move down. In the process the main gear box 68 will turn the driving shaft 62b into the opposite direction, allowing the one way flying wheel generator gears assembly to become rotating, and to activate the high, 1 to 18 ratio speed multiplication of the flying wheel gears 70,72, and 74 assembly. Further the flying wheel 74, and its shaft 76 will turn the generator;s rotating shaft with the same speed as the flying wheel 74. The stator 80 is connected with its;s fix non rotating shaft. The high speed rotation of the flying wheel-generator assembly 76 created a desired descend resistance preventing the car from accelerating out of control, and stressing the utility braking system. This movement has a dual practical interest, like the more multiplied speed in reverse the traction motor, and flying wheel-generator assembly has, the more kinetic power is produced, and less energy, for the brake power is needed to stop the elevator car. While the preferred embodiments have been described herein, it is acknowledged that the specific features may vary in part or totaly, without departing from the scope of the presently claimed invention.
file:///ecprint-proclic.gc.ca/...%203%20(Landry)/TASKING%20ISSUES/pef Gbergman_20200825121725613_2307155501070575296.txt[2020-08-26 10:24:05 AM]
kinetic power is produced, and less energy, for the brake power is needed to stop the elevator car.
36. While the preferred embodiments have been described herein, it is acknowledged that the specific features may vary in part or totaly, without departing from the scope of the presently claimed invention.
Date Recue/Date Received 2020-08-27
Claims
24. An elevator system according to claim 23, wherein said rope climbing elevator is not moved down gravitationally, and does not produce kinetic energy.
25. An elevator system according to claim 11, wherein said power storage device is constituted by a supercapacitors assembly circuit device 26. An elevator system according to claim 25, wherein said power storage device is
1. constituted by other forms of power storage system.
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 true CA3091119A1 (en) | 2021-04-06 |
| CA3091119C CA3091119C (en) | 2023-09-12 |
Family
ID=75381934
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3091119A Active CA3091119C (en) | 2020-08-25 | 2020-08-25 | Green elevator system using weightless ropes traction concept and related applications |
| CA3160045A Pending CA3160045A1 (en) | 2020-08-25 | 2020-08-25 | Magnetic stationary ropes traction elevator system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3160045A Pending CA3160045A1 (en) | 2020-08-25 | 2020-08-25 | Magnetic stationary ropes traction elevator system |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA3091119C (en) |
-
2020
- 2020-08-25 CA CA3091119A patent/CA3091119C/en active Active
- 2020-08-25 CA CA3160045A patent/CA3160045A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA3160045A1 (en) | 2021-04-06 |
| CA3091119C (en) | 2023-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230060525A1 (en) | Green Elevator System Using Weightless Ropes Traction Concept And Related Applications | |
| US7540356B2 (en) | Method and apparatus to prevent or minimize the entrapment of passengers in elevators during a power failure | |
| CN201068360Y (en) | Thin type permanent magnetism synchronization gear wheel free traction machine | |
| CN1047765C (en) | Evacuation system for lifts | |
| CA2126583C (en) | Elevator drive machine placed in the counterweight | |
| CN1236991C (en) | Method for braking a traction sheave elevator, traction sheave elevator and use of an emergency power supply | |
| CN101107191B (en) | Elevator apparatus | |
| CN202400708U (en) | Emergency rescue device for elevator tractor | |
| CN107215741A (en) | A kind of linear motor direct-driven elevator overspeed protecting and service brake | |
| CN1037254C (en) | Safeguard for cable lift | |
| CN1367133A (en) | Method for making passenger quickly leave elevator car in case of emergency and equipment | |
| JP4643825B2 (en) | Braking method for traction sheave elevator | |
| CA3091119A1 (en) | Green elevator system using weightless ropes traction concept and related applications | |
| CN102381601A (en) | Manual descending mechanism of lifter | |
| CN201458619U (en) | Low-speed assistant hoister | |
| CN103043508A (en) | Evacuating system of elevator | |
| US20170267492A1 (en) | Self-powered elevator car | |
| CN102730533A (en) | Improved escalator or moving sidewalk | |
| CN200951942Y (en) | Novel furnace charging vehicle winding engine | |
| CN201793302U (en) | Manual turning gear of traction machine | |
| RU2481263C2 (en) | Rack system for several guide supports | |
| CN208865069U (en) | A kind of lift survival equipment and its driving host | |
| KR20130008877A (en) | Development device that produce electrical energy in descent of elevator | |
| CN113307129A (en) | Power system of load balancing and energy balancing elevator | |
| CN208838906U (en) | A kind of firm escape device for high-rise buildings |