WO2020108323A1 - 螺旋式自动扶梯的扶手带驱动装置及螺旋式自动扶梯 - Google Patents

螺旋式自动扶梯的扶手带驱动装置及螺旋式自动扶梯 Download PDF

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Publication number
WO2020108323A1
WO2020108323A1 PCT/CN2019/118644 CN2019118644W WO2020108323A1 WO 2020108323 A1 WO2020108323 A1 WO 2020108323A1 CN 2019118644 W CN2019118644 W CN 2019118644W WO 2020108323 A1 WO2020108323 A1 WO 2020108323A1
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WO
WIPO (PCT)
Prior art keywords
handrail
handrail belt
shaft
drive sprocket
driving
Prior art date
Application number
PCT/CN2019/118644
Other languages
English (en)
French (fr)
Inventor
应书勇
张志雁
李春福
庞骋
Original Assignee
苏州江南嘉捷电梯有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201811439529.8A external-priority patent/CN109368467B/zh
Priority claimed from CN201811439509.0A external-priority patent/CN109466999B/zh
Application filed by 苏州江南嘉捷电梯有限公司 filed Critical 苏州江南嘉捷电梯有限公司
Publication of WO2020108323A1 publication Critical patent/WO2020108323A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/04—Driving gear for handrails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/04—Driving gear for handrails
    • B66B23/06—Driving gear for handrails with means synchronising the operation of the steps or the carrying belts and the handrails

Definitions

  • the invention relates to the technical field of escalators, in particular to a handrail belt driving device of a spiral escalator and a spiral escalator including the handrail belt driving device.
  • escalators With the development and progress of society, escalators have been widely used and become an indispensable equipment for people to facilitate life. However, the current escalators are basically linear escalators.
  • spiral escalators can provide passengers with upward or downward services. There are handrails for passengers on the left and right sides of the steps. Is running along a spiral trajectory.
  • the handrail belt drive generally adopts the method that the sprocket on the main shaft of the ladder drive drives the handrail shaft through the chain to drive the friction wheels at both ends of the handrail shaft or the linear pressure-rolling transmission device to drive the handrail belt again .
  • the axis of the drive shaft of the ladder road is completely parallel to the axis of the drive shaft of the handrail
  • the drive chain is parallel to the surfaces of the two friction wheel discs or the linear pressure roller type transmission device
  • the handrails on both sides of the rung maintain constant speed movement. Therefore, the current structure cannot meet the special requirements of spiral escalators for handrails.
  • the present invention provides a spiral escalator handrail belt driving device, which can achieve that the spiral escalator handrail belt must be laterally curved and the same angular velocity and linear velocity on both sides Different special requirements, and the steps and the handrails on both sides can start and stop at the same time, ensuring the safety of riding the ladder.
  • a handrail belt driving device for a spiral escalator includes a drive host, a step drive spindle, a drive chain connecting the step drive spindle and the drive host, and a handrail shaft for driving the movement of the handrail belt, the step drive spindle and the handrail At least one transition shaft is also provided between the shafts.
  • the transition shaft includes at least an outer transition shaft close to the outer handrail and an inner transition shaft close to the inner handrail. The connection between the outer transition shaft and the inner transition shaft is ten thousand.
  • the step drive shaft and the inner transition shaft are synchronously rotated by an inner transition chain
  • the armrest shaft and the outer transition shaft are synchronously rotated by an outer transition chain
  • the armrest shaft is close to the outer handrail belt
  • One side has an outer armrest belt drive mechanism
  • the side of the armrest shaft close to the inner armrest belt has an inner armrest belt drive mechanism.
  • a drive sprocket matched with the drive chain is provided on the inner step drive sprocket.
  • the drive chain is driven by the drive host to drive the step drive spindle to rotate.
  • the rotation of the step drive spindle drives the step movement; on the other hand ,
  • the inner transition shaft on the transition shaft rotates synchronously with the step drive spindle through the inner transition chain, and the outer transition shaft rotates synchronously with the handrail axis through the outer transition chain, so the step drive shaft rotation drives the inner transition shaft to rotate, and the transition shaft is a universal shaft.
  • the rotation of the inner transition shaft drives the rotation of the outer transition shaft and the rotation of the armrest shaft.
  • the outer armrest belt drive mechanism and the inner armrest belt drive mechanism at both ends of the armrest shaft rotate to realize the Synchronous operation of rungs. While transmitting torque, it can change the angular position of the axis of the output part of the armrest shaft, so that the armrest belt drive sprocket or friction wheel can conform to the lateral bending change of the armrest belt.
  • the outer armrest belt drive mechanism includes an outer armrest belt drive sprocket, a friction wheel or a linear pressure roller transmission device that drives the outer armrest belt movement, and a connection between the outer armrest belt drive sprocket and the friction wheel or linear pressure roller Drive chain of the outer handrail of the type transmission device
  • the inner handrail belt drive mechanism includes an inner handrail belt drive sprocket, a friction wheel or a linear pressure roller type transmission device that drives the movement of the inner handrail belt, and a drive sprocket connected to the inner handrail belt
  • the inner handrail with friction wheel or linear pressure roller type transmission device has a driving chain.
  • the handrail shaft drives the handrail belt drive sprocket to rotate.
  • the handrail belt drive chain drives the friction wheel or linear pressure roller type transmission device in contact with the handrail belt to operate and thereby drives the corresponding handrail belt movement.
  • the diameter of the outer handrail drive sprocket is larger than the diameter of the inner handrail drive sprocket. Since the length of the outer handrail belt is definitely greater than the length of the inner handrail belt, the linear speed of the outer handrail belt drive sprocket and the inner handrail belt drive sprocket must be different during operation, but it is necessary to ensure that the outer handrail belt drive sprocket and The inner handrail belt drive sprocket rotates at the same angular velocity, so the outer handrail belt drive sprocket has a larger diameter than the inner handrail belt drive sprocket.
  • the specific difference or ratio between the diameter of the outer handrail drive sprocket and the diameter of the inner handrail drive sprocket is mainly determined according to the shape of the fan-shaped step.
  • Two kinds of handrails with two radii and two radiuses are installed at both ends of the handrail shaft to achieve the running speed of the two handrails, so that the spiral escalator handrails must be curved sideways and the same angular speed on both sides and different linear speeds. Special requirements.
  • the outer armrest belt drive mechanism includes an outer friction wheel that drives the movement of the outer armrest belt
  • the inner armrest belt drive mechanism includes an inner friction wheel that drives the movement of the inner armrest belt.
  • the diameter of the outer friction wheel is larger than the diameter of the inner friction wheel.
  • the two running speeds of the handrail belt are realized by installing friction wheels of two sizes at the two ends of the handrail shaft, so as to meet the special requirements of the spiral escalator handrail belt that has to be laterally curved, the same angular velocity on both sides, and different linear speeds .
  • the axis of the armrest shaft is perpendicular to the inner armrest belt and the outer armrest belt located above it, that is, the rotating surface of the drive sprocket or friction wheel needs to be parallel to the armrest belt corresponding to its upper position, so as to conform to the armrest
  • the direction of the belt is to install the driving parts of the handrail belt, so as to achieve the purpose of driving the movement of the handrail belt.
  • the step drive spindle is parallel to the inner transition axis
  • the armrest axis is parallel to the outer transition axis
  • the inner transition chain is perpendicular to the step drive spindle and the inner transition axis
  • the outer side The transition chain is perpendicular to the armrest axis and the outer transition axis.
  • the angular speed of the step drive sprocket, the inner handrail belt drive sprocket or inner friction wheel and the outer handrail belt drive sprocket or outer friction wheel are the same during operation.
  • the step drive sprocket, the inner handrail belt drive sprocket and the outer handrail belt drive sprocket are driven by the same power source to ensure that the angular velocity of the three is the same to ensure the step and the inner and outer handrail belts run synchronously.
  • by setting the inner handrail The size of the belt drive sprocket and the outside handrail between the belt drive sprocket or the inner friction wheel and the outer friction wheel are different to ensure different linear speeds.
  • the steps of the spiral escalator are provided in a fan shape, and the steps provided in the fan shape can mutually intersect to ensure the operation of the spiral escalator.
  • a cascade drive sprocket is provided at both ends of the cascade drive spindle, the cascade drive sprocket includes an inner cascade drive sprocket on the inner side and an outer cascade drive sprocket on the outer side, the inner cascade drive chain
  • the diameter of the wheel is smaller than the diameter of the outer step drive sprocket.
  • the angular speed between the inner step drive sprocket and the outer step drive sprocket is the same but the linear speed is different, the diameter of the inner step drive sprocket needs to be smaller than the diameter of the outer step drive sprocket, specific settings It is related to the shape of the fan-shaped step.
  • the outer handrail belt driving mechanism includes an outer handrail belt drive sprocket, a friction wheel or a linear pressure roller transmission device that drives the outer handrail belt movement, and a connection between the outer handrail belt drive sprocket and the friction wheel or
  • the outer handrail belt driving chain of the linear rolling-type transmission device the inner handrail belt driving mechanism includes an inner handrail belt driving sprocket, a friction wheel or linear rolling-type transmission device that drives the movement of the inner handrail belt, and a connection to the inner handrail belt
  • the outer handrail belt drive mechanism includes An outer friction wheel that drives the movement of the outer armrest belt, the inner armrest belt drive mechanism includes an inner friction wheel that drives the movement of the inner armrest belt; the diameter of the outer friction wheel is greater than the diameter of the inner friction wheel
  • the step drive sprockets include an inner step drive sprocket on the inner side and an outer step on the outer side Drive sprocket, the diameter of the inner step drive sprocket is smaller than the diameter of the outer step drive sprocket.
  • the above-mentioned spiral escalator handrail belt drive device has a reasonable structural design.
  • the structure of the special transition shaft makes it possible to change the angular position of the axis of the output part of the handrail shaft while transmitting torque.
  • the driving sprocket or friction wheel conforms to the lateral bending change of the handrail belt, and two running speeds of the handrail belt are realized by installing two sizes of sprockets or friction wheels on both ends of the handrail shaft, thereby achieving the spiral escalator handrail belt Special requirements for lateral bending and the same angular velocity on both sides and different linear velocities.
  • Another handrail drive device for spiral escalators includes a drive host, a step drive spindle, a drive chain connecting the step drive spindle and the drive host, a handrail shaft for driving the handrail drive, and a driving station
  • the transition chain of the handrail shaft and the stepped driving spindle synchronously rotating, the handrail shaft at least includes an outer handrail shaft close to the outer handrail belt, an inner handrail shaft close to the inner handrail belt, and a connecting shaft connecting the outer handrail shaft and the inner handrail shaft
  • the connection between the outer handrail shaft and the inner handrail shaft and the connecting shaft are all universal structures, and the side of the outer handrail shaft close to the outer handrail belt has an outer handrail belt drive mechanism, and the inner handrail The side of the shaft close to the inner handrail has an inner handrail drive mechanism.
  • a drive sprocket matched with the drive chain is provided on the inner step drive sprocket.
  • the drive chain is driven by the drive host to drive the step drive spindle to rotate.
  • the rotation of the step drive spindle drives the step rotation;
  • the connecting shaft on the armrest shaft rotates synchronously with the step driving spindle through the transition chain, so the step driving spindle rotation drives the armrest shaft to rotate, which in turn drives the outer armrest belt drive mechanism and the inner handrail belt drive mechanism to rotate, thereby achieving the synchronization of the handrail belt and the step run.
  • the handrail shaft is a universal shaft.
  • the connecting shaft on the handrail shaft, the inner handrail shaft and the outer handrail shaft rotate synchronously, which can change the angular position of the axis of the output part of the handrail shaft while transmitting torque, allowing the handrail to drive a sprocket or friction wheel Comply with the lateral bending changes of the handrail.
  • the outer armrest belt drive mechanism includes an outer armrest belt drive sprocket, a friction wheel or linear pressure roller transmission device that drives the movement of the outer armrest belt, and a connection between the outer armrest belt drive sprocket and the friction wheel or linear pressure roller Drive chain of the outer handrail of the type transmission device
  • the inner handrail belt drive mechanism includes an inner handrail belt drive sprocket, a friction wheel or a linear pressure roller type transmission device that drives the movement of the inner handrail belt, and a drive sprocket connected to the inner handrail belt
  • the inner handrail with friction wheel or linear pressure roller type transmission device has a driving chain.
  • the above is that the handrail shaft drives the handrail belt drive sprocket to rotate.
  • the handrail belt drive chain drives the friction wheel or linear pressure roller type transmission device in contact with the handrail belt to operate and thereby drives the corresponding handrail belt movement.
  • the diameter of the outer handrail drive sprocket is larger than the diameter of the inner handrail drive sprocket. Since the length of the outer handrail belt is definitely greater than the length of the inner handrail belt, the linear speed of the outer handrail belt drive sprocket and the inner handrail belt drive sprocket must be different during operation, but it is necessary to ensure that the outer handrail belt drive sprocket and The inner handrail belt drive sprocket rotates at the same angular velocity, so the outer handrail belt drive sprocket has a larger diameter than the inner handrail belt drive sprocket.
  • the specific difference or ratio between the diameter of the outer handrail drive sprocket and the diameter of the inner handrail drive sprocket is mainly determined according to the shape of the fan-shaped step.
  • Two kinds of handrails with two radii and two radiuses are installed at both ends of the handrail shaft to achieve the running speed of the two handrails, so that the spiral escalator handrails must be curved sideways and the same angular speed on both sides and different linear speeds. Special requirements.
  • the outer armrest belt drive mechanism includes an outer friction wheel that drives the movement of the outer armrest belt
  • the inner armrest belt drive mechanism includes an inner friction wheel that drives the movement of the inner armrest belt.
  • the diameter of the outer friction wheel is larger than the diameter of the inner friction wheel.
  • the two running speeds of the handrail belt are realized by installing friction wheels of two sizes at the two ends of the handrail shaft, so as to meet the special requirements of the spiral escalator handrail belt that has to be laterally curved, the same angular velocity on both sides, and different linear speeds .
  • the transition chain is connected to the stepped driving main shaft and the connecting shaft; the transition chain is parallel to the driving chain, the stepped driving main shaft is parallel to the connecting shaft, and the transition chain is perpendicular to The step drives the main shaft and the connecting shaft.
  • the axis of the outer armrest shaft is perpendicular to the outer armrest belt located above it, and the axis of the inner armrest shaft is perpendicular to the inner armrest belt located above it, that is, the rotating surface of the drive sprocket or friction wheel needs It is parallel to the handrail belt corresponding to the position above it, so that the handrail driving component can be placed in conformity with the direction of the handrail belt, so as to achieve the purpose of driving the handrail belt to move.
  • the angular speed of the step drive sprocket, the inner handrail belt drive sprocket or inner friction wheel and the outer handrail belt drive sprocket or outer friction wheel are the same during operation.
  • the step drive sprocket, the inner handrail belt drive sprocket and the outer handrail belt drive sprocket are driven by the same power source to ensure that the angular velocity of the three is the same to ensure the step and the inner and outer handrail belts run synchronously.
  • by setting the inner handrail The size of the belt drive sprocket and the outside handrail between the belt drive sprocket or the inner friction wheel and the outer friction wheel are different to ensure different linear speeds.
  • the steps of the spiral escalator are provided in a fan shape, and the steps provided in the fan shape can mutually intersect to ensure the operation of the spiral escalator.
  • a cascade drive sprocket is provided at both ends of the cascade drive spindle, the cascade drive sprocket includes an inner cascade drive sprocket on the inner side and an outer cascade drive sprocket on the outer side, the inner cascade drive chain
  • the diameter of the wheel is smaller than the diameter of the outer step drive sprocket.
  • the angular speed between the inner step drive sprocket and the outer step drive sprocket is the same but the linear speed is different, the diameter of the inner step drive sprocket needs to be smaller than the diameter of the outer step drive sprocket, specific settings It is related to the shape of the fan-shaped step.
  • the outer handrail belt driving mechanism includes an outer handrail belt drive sprocket, a friction wheel or a linear pressure roller transmission device that drives the outer handrail belt movement, and a connection between the outer handrail belt drive sprocket and the friction wheel or
  • the outer handrail belt driving chain of the linear rolling-type transmission device the inner handrail belt driving mechanism includes an inner handrail belt driving sprocket, a friction wheel or linear rolling-type transmission device that drives the movement of the inner handrail belt, and a connection to the inner handrail belt
  • the outer handrail belt drive mechanism includes An outer friction wheel that drives the movement of the outer armrest belt, the inner armrest belt drive mechanism includes an inner friction wheel that drives the movement of the inner armrest belt; the diameter of the outer friction wheel is greater than the diameter of the inner friction wheel
  • the step drive sprockets include an inner step drive sprocket on the inner side and an outer step drive sprocket on the outer side.
  • the diameter of the inner step drive sprocket is smaller than the outer step drive chain The diameter of the wheel.
  • the above spiral escalator handrail belt driving device has a reasonable structural design.
  • the special handrail shaft structure enables it to change the axis position of the handrail shaft output part while transmitting torque, so that the handrail belt drives the chain
  • the wheel or friction wheel conforms to the lateral bending change of the handrail belt, and two running speeds of the handrail belt are realized by installing two sizes of sprockets or friction wheels at both ends of the handrail shaft, so that the spiral escalator handrail belt must be laterally Bending requires special requirements for the same angular velocity on both sides and different linear velocity.
  • the present invention also provides a spiral escalator, which includes the step structure of the spiral escalator as described above and other parts and components that can be obtained according to conventional means in the art.
  • the present invention is advantageous in that: the handrail drive device of the spiral escalator of the present invention, 1.
  • the initial power of the steps and the handrails on both sides comes from the same drive chain or drive spindle, so that both Can start and stop at the same time to ensure the safety of riding;
  • the chain drive shaft is divided into a transition shaft and a handrail shaft and the transition shaft uses a universal shaft structure, which can stably transmit torque and facilitate the change of the installation angle of the handrail drive component, and the angle adjustment range is large.
  • the applicable spiral ladder The radius of rotation can be large or small, the structure is simple and reliable, and the installation is easy; or, the chain drive shaft is divided into a transition shaft and an armrest shaft and the transition shaft uses a universal shaft structure, which can stably transmit torque and facilitate the change of the armrest drive components
  • the installation angle, and the angle adjustment range is large, the applicable spiral ladder rotation radius can be large or small, the structure is simple and reliable, and the installation is convenient;
  • the handrail driving device of the present invention has a wide application range, and is suitable for any spiral escalator with left-handed ascending or right-handed ascending.
  • FIG. 1 is a perspective schematic view of the installation of a handrail drive device of a spiral escalator in a preferred embodiment of the present invention
  • FIG. 2 is a schematic top view of the installation of the handrail drive device of the spiral escalator in the preferred embodiment 1 of the present invention
  • Figure 3 is an enlarged view of part I in Figure 2;
  • FIG. 4 is a schematic plan view of the installation of the handrail drive device of the spiral escalator in the preferred embodiment 2 of the present invention
  • FIG. 5 is an enlarged view of part I in FIG. 4;
  • drive host-1 drive chain-2, step drive spindle-3, drive sprocket-4, transition chain-5, inner transition chain-5a, outer transition chain-5b, inner handrail with drive chain-6a, outer Handrail belt drive chain-6b, handrail shaft-7, inner handrail shaft-7a, outer handrail shaft-7b, connecting shaft-7c, inner handrail belt drive sprocket-8a, outer handrail belt drive sprocket-8b, inner step drive Sprocket-9a, outer step drive sprocket-9b, inner handrail belt-10a, outer handrail belt-10b, glass-11, step-12, inner transition shaft-13a, outer transition shaft-13b.
  • a handrail belt driving device of a spiral escalator of this embodiment includes a driving host 1, a step driving spindle 3, a driving chain 2 connecting the step driving spindle 3 and the driving host 1, and a handrail for driving A handrail shaft 7 with movement, a transition shaft is also provided between the step drive spindle 3 and the handrail shaft 7, the transition shaft includes an outer transition shaft 13b near the outer handrail belt 10b and an inner transition shaft 13a near the inner handrail belt 10a, the outer transition The connection between the shaft 13b and the inner transition shaft 13a is a universal structure, that is, the transition shaft is a universal shaft, and the stepped driving spindle 3 and the inner transition shaft 13a rotate synchronously through the inner transition chain 5a, and the armrest shaft 7 and the outer transition shaft 13b The outer transition chain 5b rotates synchronously.
  • the side of the handrail shaft 7 near the outer handrail belt 10b has an outer handrail belt drive mechanism, and the side of the handrail shaft 7 near the inner hand
  • a drive sprocket 4 matched with the drive chain 2 is provided on the inner step drive sprocket 9a.
  • the drive chain 2 is driven by the drive host 1 to drive the step drive spindle 3 to rotate.
  • the step drive spindle 3 The rotation drives the step 12 to move; on the other hand, the inner transition shaft 13a on the transition shaft rotates synchronously with the step drive spindle 3 through the inner transition chain 5a, and the outer transition shaft 13b rotates synchronously with the armrest shaft 7 through the outer transition chain 5b, so the step drive
  • the rotation of the main shaft 3 drives the inner transition shaft 13a to rotate, and the transition shaft is a universal shaft, that is, a universal structure between the inner transition shaft 13a and the outer transition shaft 13b.
  • the rotation of the inner transition shaft 13a drives the rotation of the outer transition shaft 13b and the rotation of the armrest shaft 7 ,
  • the outer armrest belt drive mechanism and the inner armrest belt drive mechanism at both ends of the armrest shaft 7 rotate to realize the synchronous operation of the armrest belt and the step 12. While transmitting torque, it can change the angular position of the axis of the output part of the armrest shaft 7 and allow the armrest belt drive sprocket or friction wheel to conform to the lateral bending change of the armrest belt.
  • the outer armrest belt drive mechanism in this embodiment includes an outer armrest belt drive sprocket 8b, a friction wheel or linear pressure roller transmission device that drives the outer armrest belt 10b to move, and a connection between the outer armrest belt drive sprocket 8b and the friction wheel or linear pressure
  • the outer handrail belt drive chain 6b of the roller transmission device, the inner handrail belt drive mechanism includes an inner handrail belt drive sprocket 8a, a friction wheel or a linear pressure roller type transmission device that drives the inner handrail belt 10a movement, and a drive sprocket connected to the inner handrail belt 8a and friction wheel or the inner handrail of the linear pressure roller type transmission device with a driving chain 6a.
  • the above is the handrail shaft 7 driving the handrail belt drive sprocket to rotate.
  • the handrail belt driving chain drives the friction wheel or linear pressure roller transmission that is in contact with the handrail belt to drive the corresponding handrail belt movement, as shown in Figure 1-2 .
  • the diameter of the outer handrail drive sprocket 8b is larger than the diameter of the inner handrail drive sprocket 8a. Since the length of the outer handrail belt 10b is definitely greater than the length of the inner handrail belt 10a, the linear speed of the outer handrail belt drive sprocket 8b and the inner handrail belt drive sprocket 8a during operation is definitely different, but make sure that the outer handrail belt The angular velocity of the drive sprocket 8b and the inner handrail drive sprocket 8a are the same, so the outer handrail drive sprocket 8b has a larger diameter than the inner handrail drive sprocket 8a.
  • the specific difference or ratio between the diameter of the outer handrail drive sprocket 8b and the diameter of the inner handrail drive sprocket 8a is mainly determined according to the shape of the sector step.
  • Two kinds of handrails with different radii of different sizes are installed on both ends of the handrail shaft 7 to achieve two running speeds of the handrail belt, so that the spiral escalator handrail belt must be laterally curved and the same angular velocity on both sides. Special requirements for different linear speeds.
  • the outer handrail drive mechanism includes an outer friction wheel that drives the outer handrail belt 10b
  • the inner handrail drive mechanism includes an inner friction wheel that drives the inner handrail belt 10a. That is, a friction wheel may be used instead of the handrail driving sprocket and the handrail driving chain in the above embodiments.
  • the handrail shaft 7 drives the friction wheels on both sides to rotate, and the friction wheel contacts the handrail belt, thereby driving the corresponding handrail belt to move.
  • the diameter of the outer friction wheel is larger than the diameter of the inner friction wheel.
  • Two running speeds of handrails are achieved by installing friction wheels of two sizes and two radii on both ends of the handrail shaft 7 to achieve the special characteristics of spiral escalator handrails that have to be laterally curved, have the same angular velocity on both sides, and have different linear velocities Claim.
  • the steps 12 of the spiral escalator are arranged in a fan shape, and the steps 12 arranged in the shape of a fan are mutually engulfed to ensure the operation of the spiral escalator.
  • Both ends of the step drive spindle 3 are provided with step drive sprockets.
  • the step drive sprocket includes an inner step drive sprocket 9a on the inner side and an outer step drive sprocket 9b on the outer side.
  • the diameter of the inner step drive sprocket 9a is smaller than the outer step The diameter of the drive sprocket 9b.
  • the angular speed between the inner step drive sprocket 9a and the outer step drive sprocket 9b is the same but the linear velocity is different, the diameter of the inner step drive sprocket 9a needs to be smaller than the diameter of the outer step drive sprocket 9b .
  • the axis of the handrail shaft 7 is perpendicular to the inner handrail belt 10a and the outer handrail belt 10b located above it, that is, the rotating surface of the handrail belt driving sprocket or friction wheel needs to be opposite to the handrail belt corresponding to its upper position Parallel, in order to follow the direction of the handrail to install the handrail drive components, to achieve the purpose of driving the handrail movement.
  • the step drive spindle 3 is parallel to the inner transition axis 13a
  • the handrail axis 7 is parallel to the outer transition axis 13b
  • the inner transition chain 5a is perpendicular to the step drive spindle 3 and the inner transition axis 13a
  • the outer transition chain 5b is perpendicular to the handrail axis 7 and the outer transition axis 13b.
  • the step drive sprocket, the inner handrail belt drive sprocket 8a or the inner friction wheel and the outer handrail belt drive sprocket 8b or the outer friction wheel have the same angular velocity during operation.
  • the step drive sprocket, the inner handrail drive sprocket 8a and the outer handrail drive sprocket 8b are all driven by the same power source to ensure that the angular velocity of the three of them is the same to ensure that the step and the inner and outer handrails run synchronously.
  • the diameter between the inner handrail drive sprocket 8a and the outer handrail drive sprocket 8b or the inner friction wheel and the outer friction wheel is different to ensure different linear speeds.
  • the chain in this embodiment can also be replaced by other transmission devices such as belts, crawlers, etc.
  • the corresponding sprocket needs to be set where there is a chain, so that the corresponding shaft can be driven by the chain Turn.
  • the handrail drive device of this embodiment adds a transition shaft between the step drive spindle 3 and the handrail shaft 7, the transition shaft includes two sub-axes, namely, the inner transition shaft 13a and the outer transition shaft 13b, the inner transition shaft 13a and the outer transition
  • the shaft 13b is connected by a universal structure, and the angle between the axis of the sub-axis is changed by the structure of the universal shaft to change the output direction of the handrail drive chain 5b, so that the handrail shaft 7 is nearly perpendicular to the handrail belt where it is located, which is convenient for placing the handrail With drive.
  • This structure requires a two-stage handrail drive chain, namely the inner transition chain 5a and the outer transition chain 5b.
  • transition shafts may be provided to adapt to the situation where the angle between the stepped driving spindle 3 and the armrest shaft 7 is too large, on the other hand, the transition shaft may also be divided into multiple sub-axes In order to better match the armrest shaft 7 with its corresponding armrest band.
  • the handrail drive device of the spiral escalator of this embodiment has a reasonable structural design. Based on the chain transmission, the structure of the special transition shaft makes it possible to change the angular position of the axis of the output part of the handrail shaft while transmitting torque. Make the handrail drive sprocket or friction wheel conform to the lateral bending change of the handrail belt.
  • the two handrail speeds can be achieved by installing two sizes of sprockets or friction wheels at both ends of the handrail shaft, so as to achieve the spiral escalator handrail
  • the belt requires both lateral bending and the same requirements for the same angular velocity and different linear velocity on both sides.
  • the handrail belt driving device of the spiral escalator of the present invention has the following advantages: 1.
  • the initial power of the steps and the handrail belts on both sides comes from the same drive chain or drive spindle, so that the two can start and stop walking at the same time, ensuring The safety of riding; 2.
  • the shaft of the chain drive is divided into a transition shaft and a handrail shaft and the transition shaft uses a universal shaft structure, which can stably transmit torque and facilitate the change of the installation angle of the handrail drive component, and the angle adjustment range is large.
  • the spiral radii of the applicable spiral ladder can be large or small, the structure is simple and reliable, and the installation is convenient; 3.
  • the spiral handrail of the inner ring and the outer ring can obtain the angular speed of synchronous operation with the spiral steps; 4.
  • the handrail driving device of the present invention has a wide range of application, and is suitable for any spiral escalator with left-handed ascending or right-handed ascending.
  • a handrail drive device of a spiral escalator of this embodiment includes a drive host 1, a step drive spindle 3, a drive chain 2 connecting the step drive spindle 3 and the drive host 1, and The handrail shaft 7 that drives the handrail movement and the transition chain 5 that drives the handrail shaft 7 and the stepped drive spindle 3 to rotate synchronously.
  • the handrail shaft 7 includes an outer handrail shaft 7b close to the outer handrail belt 10b, an inner handrail shaft 7a close to the inner handrail belt 10a, and a connecting shaft 7c connecting the outer handrail shaft 7b and the inner handrail shaft 7a.
  • the connection between the handrail shaft 7b and the inner handrail shaft 7a and the connecting shaft 7c is a universal structure, that is, the handrail shaft 7 is a universal shaft.
  • the side of the outer armrest shaft 7b near the outer armrest has an outer armrest belt drive mechanism
  • the side of the inner armrest shaft 7a near the inner armrest has an inner armrest belt drive mechanism.
  • a drive sprocket 4 matched with the drive chain 2 is provided on the inner step drive sprocket 9a, and the drive chain 2 is driven by the drive host 1 to drive the step drive spindle 3 to rotate.
  • the step drive spindle 3 rotates to drive the step 12 to rotate;
  • the connecting shaft 7c on the handrail shaft 7 rotates synchronously with the step drive spindle 3 through the transition chain 5, so the step drive spindle 3 rotates to drive the handrail shaft 7 to rotate, and
  • the outer armrest belt drive mechanism and the inner armrest belt drive mechanism are driven to rotate, and the synchronous operation of the armrest belt and the step 12 is realized.
  • the armrest shaft 7 is a universal shaft.
  • the connecting shaft 7c, the inner armrest shaft 7a, and the outer armrest shaft 7b on the armrest shaft 7 rotate synchronously, which can change the angular position of the axis of the output portion of the armrest shaft 7 while transmitting torque.
  • the driving sprocket or friction wheel conforms to the lateral bending of the handrail.
  • the outer armrest belt drive mechanism in this embodiment includes an outer armrest belt drive sprocket 8b, a friction wheel or linear pressure roller transmission device that drives the outer armrest belt movement, and a connection between the outer armrest belt drive sprocket 8b and the friction wheel or linear pressure roller Drive chain 6b of the outer handrail of the transmission
  • the inner handrail belt drive mechanism includes an inner handrail belt drive sprocket 8a, a friction wheel or a linear pressure roller type transmission device that drives the inner handrail belt movement, and a connection of the inner handrail belt drive sprocket 8a and
  • the inner handrail of the friction wheel or linear pressure roller transmission device has a driving chain 6a.
  • the handrail shaft 7 drives the handrail belt drive sprocket to rotate
  • the handrail belt drive chain drives the friction wheel or linear pressure roller type transmission device in contact with the handrail belt to operate to drive the corresponding handrail belt movement, as shown in Figure 1 and 4 is shown.
  • the diameter of the outer handrail drive sprocket 8b is larger than the diameter of the inner handrail drive sprocket 8a. Since the length of the outer handrail belt 10b is definitely greater than the length of the inner handrail belt 10a, the linear speed of the outer handrail belt drive sprocket 8b and the inner handrail belt drive sprocket 8a during operation is definitely different, but make sure that the outer handrail belt The angular velocity of the drive sprocket 8b and the inner handrail drive sprocket 8a are the same, so the outer handrail drive sprocket 8b has a larger diameter than the inner handrail drive sprocket 8a.
  • the specific difference or ratio between the diameter of the outer handrail drive sprocket 8b and the diameter of the inner handrail drive sprocket 8a is mainly determined according to the shape of the sector step.
  • Two kinds of handrails with different radii of different sizes are installed on both ends of the handrail shaft 7 to achieve two running speeds of the handrail belt, so that the spiral escalator handrail belt must be laterally curved and the same angular velocity on both sides. Special requirements for different linear speeds.
  • the outer handrail drive mechanism includes an outer friction wheel that drives the outer handrail belt 10b
  • the inner handrail drive mechanism includes an inner friction wheel that drives the inner handrail belt 10a. That is, a friction wheel may be used instead of the handrail driving sprocket and the handrail driving chain in the above embodiments.
  • the handrail shaft 7 drives the friction wheels on both sides to rotate, and the friction wheel contacts the handrail belt, thereby driving the corresponding handrail belt to move.
  • the diameter of the outer friction wheel is larger than the diameter of the inner friction wheel.
  • Two running speeds of handrails are achieved by installing friction wheels of two sizes and two radii on both ends of the handrail shaft 7 to achieve the special characteristics of spiral escalator handrails that have to be laterally curved, have the same angular velocity on both sides, and have different linear velocities Claim.
  • the steps 12 of the spiral escalator are arranged in a fan shape, and the steps 12 arranged in the shape of a fan are mutually engaged to ensure the operation of the spiral escalator.
  • Both ends of the step drive spindle 3 are provided with step drive sprockets.
  • the step drive sprocket includes an inner step drive sprocket 9a on the inner side and an outer step drive sprocket 9b on the outer side.
  • the diameter of the inner step drive sprocket 9a is smaller than the outer step The diameter of the drive sprocket 9b.
  • the angular speed between the inner step drive sprocket 9a and the outer step drive sprocket 9b is the same but the linear velocity is different, the diameter of the inner step drive sprocket 9a needs to be smaller than the diameter of the outer step drive sprocket 9b .
  • the transition chain 5 is connected to the step driving spindle 3 and the connecting shaft 7c; the transition chain 5 is parallel to the driving chain 2, the step driving spindle 3 is parallel to the connecting shaft 7c, and the transition chain 5 is perpendicular to the step driving spindle 3 and Connect shaft 7c.
  • the axis of the outer handrail shaft 7b is perpendicular to the outer handrail belt 10b corresponding to its upper position
  • the axis of the inner handrail shaft 7a is perpendicular to the inner handrail belt 10a corresponding to its upper position, that is, the rotating surface of the driving sprocket or friction wheel needs to correspond to
  • the handrails above it are parallel to achieve the purpose of driving the handrails.
  • the step drive sprocket, the inner handrail belt drive sprocket 8a or the inner friction wheel and the outer handrail belt drive sprocket 8b or the outer friction wheel have the same angular velocity during operation.
  • the step drive sprocket, the inner handrail drive sprocket 8a and the outer handrail drive sprocket 8b are all driven by the same power source to ensure that the angular velocity of the three of them is the same to ensure that the step and the inner and outer handrails run synchronously.
  • the diameter between the inner handrail drive sprocket 8a and the outer handrail drive sprocket 8b or the inner friction wheel and the outer friction wheel is different to ensure different linear speeds.
  • the chain in this embodiment can also be replaced by other transmission devices such as belts, crawlers, etc.
  • the corresponding sprocket needs to be set where there is a chain, so that the corresponding shaft can be driven by the chain Turn.
  • the drive host 1 drives the drive sprocket 4 and the step drive spindle 3 and the step drive sprocket connected to both ends of the step drive spindle 3 through the drive chain 2 to drive the step 12 to run up or down
  • the driving spindle 3 fixed to the step drives the armrest shaft 7 through the transition chain 5 to rotate together.
  • the handrail shaft 7 is composed of several sections of the inner handrail shaft 7a, the outer handrail shaft 7b, and the connecting shaft 7c. The two adjacent sub-shafts are connected by a universal structure.
  • the connecting shaft 7c is provided with a transition chain 5 Matching transmission sprocket and the connecting shaft 7c is parallel to the stepped driving spindle 3, all the sub-axes keep rotating synchronously, the angle between the axis of the sub-axes can be changed as needed so that the two ends of the armrest shaft 7 are inside
  • the axis of the handrail shaft 7a and the outer handrail shaft 7b are nearly perpendicular to the corresponding handrail belt, so as to follow the direction of the handrail belt to install the handrail belt driving component, and the split shaft at both ends is the tail of the inner handrail shaft 7a and the outer handrail shaft 7b Install an armrest belt drive sprocket or friction wheel at each end.
  • the armrest belt drive device When the armrest belt drive sprocket is installed, the armrest belt drive device is driven by the armrest belt drive chain to drive the armrest belt on both sides.
  • the friction wheel When the friction wheel is installed, That is, the friction between the friction wheel and the handrail belt drives the handrail belt to run.
  • the two handrail belt drive sprockets or friction wheels have the same rotational angular velocity, but the inner handrail belt drive sprockets or friction wheels have a smaller diameter, which can provide different linear speeds for the inner handrail belt 10a and the outer handrail belt 10b, respectively .
  • the armrest shaft 7 can also be set to multiple sub-axes larger than 3 segments, only to ensure that the multiple sub-axes can rotate synchronously and the two ends of the armrest shaft 7 are perpendicular to the corresponding armrest belt and One section can be parallel to the step drive spindle 3.
  • the handrail drive device of the spiral escalator of this embodiment includes a multi-segment sub-axle handrail shaft and other shafts, sprockets, chains and other transmission structures or gears, and is connected by a universal structure between the sub-axes.
  • the universal structure not only transmits torque but also changes the direction angle of the output shaft or input shaft axis, so that the direction angle of the power transmission path of the sprocket chain changes, and then the handrail is driven by a large and a small chain wheel with a pressure roller transmission device Or directly drive the handrail with friction wheels to achieve two running speeds of the handrail.
  • the handrail belt driving device of the spiral escalator of this embodiment has a reasonable structural design. Based on the chain transmission, the special handrail shaft structure can transmit torque while changing the angular position of the axis of the output part of the handrail shaft.
  • the handrail belt drive sprocket or friction wheel conforms to the lateral bending of the handrail belt. By installing two sizes of sprockets or friction wheels at both ends of the handrail shaft, two running speeds of the handrail belt are achieved to achieve the spiral escalator handrail belt Special requirements are required for both lateral bending and the same angular velocity on both sides and different linear velocities.
  • the handrail belt driving device of the spiral escalator of the present invention has the following advantages: 1.
  • the initial power of the steps and the handrail belts on both sides comes from the same drive chain or drive spindle, so that the two can start and stop at the same time, guarantee To increase the safety of the elevator; 2. Segment the shaft of the chain drive and use the universal shaft structure, which can stably transmit torque and facilitate the change of the installation angle of the handrail drive component, and the angle adjustment range is large.
  • the applicable spiral ladder rotation radius Can be large or small, simple and reliable structure, easy to install; 3.
  • the handrail drive device of the present invention has a wide range of application, and is suitable for any spiral escalator with left-handed ascending or right-handed ascending.
  • the spiral escalator in this embodiment includes the handrail belt driving device of the spiral escalator in Embodiment 1 and Embodiment 2 and other components that can be obtained according to conventional methods in the art, such as Steps, truss, etc.

Abstract

一种螺旋式自动扶梯的扶手带驱动装置，包括驱动主机（1）、梯级驱动主轴（3）、连接梯级驱动主轴（3）和驱动主机（1）的驱动链条（2）以及用于驱动扶手带运动的扶手轴（7），梯级驱动主轴（3）与扶手轴（7）之间还设置有至少一个过渡轴，过渡轴至少包括靠近外侧扶手带（10b）的外侧过渡轴(13b)以及靠近内侧扶手带(10a)的内侧过渡轴(13a)，外侧过渡轴(13b)和内侧过渡轴(13a)之间的连接为万向结构，梯级驱动主轴(3)与内侧过渡轴(13a)之间通过内侧过渡链条(5a)同步转动，扶手轴(7)与外侧过渡轴(13b)之间通过外侧过渡链条(5b)同步转动。该扶手带驱动装置，能够达到扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求，且梯级和两侧扶手带能够同时启停步动，保证了乘梯的安全。

Description

螺旋式自动扶梯的扶手带驱动装置及螺旋式自动扶梯 技术领域
本发明涉及自动扶梯技术领域，具体涉及一种螺旋式自动扶梯的扶手带驱动装置以及包括了该扶手带驱动装置的螺旋式自动扶梯。
背景技术
随着社会发展与进步，自动扶梯已被普遍运用，成为人们便利生活不可或缺的一种设备。但是目前的自动扶梯基本都为直线形自动扶梯。
螺旋式自动扶梯的工作方式和组成功能部件与直线形自动扶梯相似，螺旋式自动扶梯可为乘客提供上行或下行服务，在梯级左右两侧有供乘客抓握的扶手带，扶手带和梯级都是沿螺旋形轨迹运行。
就目前普通直线形自动扶梯而言，扶手带驱动一般采用由梯路驱动主轴上的链轮通过链条带动扶手轴从而带动扶手轴两端的摩擦轮或直线压滚式传动装置再驱动扶手带的方式。这种结构下梯路驱动主轴轴线与扶手驱动轴轴线完全平行、驱动链条与两摩擦轮盘面或直线压滚式传动装置平行，并且梯级两侧扶手带保持等速运动。因此，目前这种结构无法满足螺旋式自动扶梯对扶手带的特殊要求。
发明内容
有鉴于此，为了解决现有技术的问题，本发明提供了一种螺旋式自动扶梯的扶手带驱动装置，能够达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求，且梯级和两侧扶手带能够同时启停步动，保证了乘梯的安全。
为了达到上述目的，本发明采用以下的技术方案：
一种螺旋式自动扶梯的扶手带驱动装置，包括驱动主机、梯级驱动主轴、连接所述梯级驱动主轴和驱动主机的驱动链条以及用于驱动扶手带运动的扶手轴，所述梯级驱动主轴与扶手轴之间还设置有至少一个过渡轴，所述过渡轴至少包括靠近外侧扶手带的外侧过渡轴以及靠近内侧扶手带的内侧过渡轴，所述外侧过渡轴和内侧过渡轴之间的连接为万向结构，所述梯级驱动主轴与所述内侧过渡轴之间通过内侧过渡链条同步转动，所述扶手轴与外侧过渡轴之间通过外侧过渡链条同步转动，所述扶手轴靠近所述外侧扶手带的一侧具有外侧扶手带 驱动机构，所述扶手轴靠近所述内侧扶手带的一侧具有内侧扶手带驱动机构。梯级驱动主轴上靠近内侧梯级驱动链轮上设置有与驱动链条相配合的驱动链轮，通过驱动主机带动驱动链条进而带动梯级驱动主轴转动，一方面，梯级驱动主轴转动带动梯级运动；另一方面，过渡轴上的内侧过渡轴通过内侧过渡链条与梯级驱动主轴同步转动，外侧过渡轴通过外侧过渡链条与扶手轴同步转动，所以梯级驱动主轴转动带动内侧过渡轴转动，过渡轴为万向轴即内侧过渡轴和外侧过渡轴之间为万向结构，内侧过渡轴转动带动外侧过渡轴转动进而带动扶手轴转动，扶手轴两端的外侧扶手带驱动机构和内侧扶手带驱动机构转动，实现扶手带与梯级的同步运行。在传递转矩的同时能改变扶手轴输出部分轴线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化。
优选地，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条。以上为扶手轴带动扶手带驱动链轮转动，通过扶手带驱动链条带动与扶手带相接触的摩擦轮或直线压滚式传动装置运行进而带动对应的扶手带运动。
更加优选地，所述外侧扶手带驱动链轮的直径大于所述内侧扶手带驱动链轮的直径。由于外侧扶手带的长度肯定是大于内侧扶手带的长度，所以外侧扶手带驱动链轮和内侧扶手带驱动链轮在运转的时候线速度是肯定不同的，但是要保证外侧扶手带驱动链轮和内侧扶手带驱动链轮转动的角速度相同，所以外侧扶手带驱动链轮的直径大于内侧扶手带驱动链轮的直径。外侧扶手带驱动链轮的直径与内侧扶手带驱动链轮的直径之间具体的差值或者说比值，主要根据扇形梯级的形状来确定。通过在扶手轴两端安装大小两种半径的扶手带驱动链轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
优选地，所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮。以上为扶手轴带动两侧的摩擦轮转动，摩擦轮与扶手带相接触，进而带动对应的扶手带运动。
更加优选地，所述外侧摩擦轮的直径大于内侧摩擦轮的直径。通过在扶手轴两端安装大小两种半径的摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
优选地，所述扶手轴的轴线垂直于位于其上方位置的内侧扶手带和外侧扶手带，即驱动链轮或摩擦轮的转动面需要与对应其上方位置的扶手带相平行，以便于顺应扶手带的走向安放扶手带驱动部件，才能达到带动扶手带运动的目的。
优选地，所述梯级驱动主轴与所述内侧过渡轴平行，所述扶手轴与所述外侧过渡轴平行，所述内侧过渡链条垂直于所述梯级驱动主轴和所述内侧过渡轴，所述外侧过渡链条垂直于所述扶手轴和所述外侧过渡轴。
优选地，所述梯级驱动链轮、内侧扶手带驱动链轮或内侧摩擦轮和外侧扶手带驱动链轮或外侧摩擦轮在运行时的角速度相同。梯级驱动链轮、内侧扶手带驱动链轮和外侧扶手带驱动链轮均由同一个动力源带动，保证其三者的角速度相同才能保证梯级和内外侧的扶手带同步运行，另外通过设置内侧扶手带驱动链轮和外侧扶手带驱动链轮或内侧摩擦轮和外侧摩擦轮之间的尺寸大小不一样从而保证不同的线速度。
优选地，所述螺旋式自动扶梯的梯级为扇形设置，扇形设置的梯级之间相互噬合才能保证螺旋式自动扶梯的运行。
更加优选地，所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级驱动链轮的直径小于外侧梯级驱动链轮的直径。与扶手带驱动机构的原理类似，内侧梯级驱动链轮和外侧梯级驱动链轮之间的角速度相同而线速度不同，内侧梯级驱动链轮的直径需小于外侧梯级驱动链轮的直径，具体的设置与扇形梯级的形状有关。
在一些实施例中，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条；所述外侧扶手带驱动链轮的直径大于所述内侧扶手 带驱动链轮的直径；所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮；所述外侧摩擦轮的直径大于内侧摩擦轮的直径；所述扶手轴的轴线垂直于位于其上方位置的内侧扶手带和外侧扶手带；所述梯级驱动主轴与所述内侧过渡轴平行，所述扶手轴与所述外侧过渡轴平行，所述内侧过渡链条垂直于所述梯级驱动主轴和所述内侧过渡轴，所述外侧过渡链条垂直于所述扶手轴和所述外侧过渡轴；所述梯级驱动链轮、内侧扶手带驱动链轮和外侧扶手带驱动链轮在运行时的角速度相同；所述螺旋式自动扶梯的梯级为扇形设置；所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级驱动链轮的直径小于外侧梯级驱动链轮的直径。
以上的一种螺旋式自动扶梯的扶手带驱动装置，其结构设计合理，以链条传动为基础通过特殊过渡轴的结构使之在传递转矩的同时能改变扶手轴输出部分轴线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化，通过在扶手轴两端安装大小两种半径链轮或摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
本发明提供的另一种螺旋式自动扶梯的扶手带驱动装置，包括驱动主机、梯级驱动主轴、连接所述梯级驱动主轴和驱动主机的驱动链条、用于驱动扶手带运动的扶手轴以及带动所述扶手轴与梯级驱动主轴同步转动的过渡链条，所述扶手轴至少包括靠近外侧扶手带的外侧扶手轴、靠近内侧扶手带的内侧扶手轴以及连接所述外侧扶手轴与内侧扶手轴的连接轴，所述外侧扶手轴以及内侧扶手轴与所述连接轴之间的连接均为万向结构，所述外侧扶手轴靠近所述外侧扶手带的一侧具有外侧扶手带驱动机构，所述内侧扶手轴靠近所述内侧扶手带的一侧具有内侧扶手带驱动机构。梯级驱动主轴上靠近内侧梯级驱动链轮上设置有与驱动链条相配合的驱动链轮，通过驱动主机带动驱动链条进而带动梯级驱动主轴转动，一方面，梯级驱动主轴转动带动梯级转动；另一方面，扶手轴上的连接轴通过过渡链条与梯级驱动主轴同步转动，所以梯级驱动主轴转动带动扶手轴转动，进而带动外侧扶手带驱动机构和内侧扶手带驱动机构转动，进而实现扶手带与梯级的同步运行。且扶手轴为万向轴，扶手轴上的连接轴、内侧扶手轴和外侧扶手轴同步转动，在传递转矩的同时能改变扶手轴输出部分轴 线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化。
优选地，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条。以上为扶手轴带动扶手带驱动链轮转动，通过扶手带驱动链条带动与扶手带相接触的摩擦轮或直线压滚式传动装置运行进而带动对应的扶手带运动。
更加优选地，所述外侧扶手带驱动链轮的直径大于所述内侧扶手带驱动链轮的直径。由于外侧扶手带的长度肯定是大于内侧扶手带的长度，所以外侧扶手带驱动链轮和内侧扶手带驱动链轮在运转的时候线速度是肯定不同的，但是要保证外侧扶手带驱动链轮和内侧扶手带驱动链轮转动的角速度相同，所以外侧扶手带驱动链轮的直径大于内侧扶手带驱动链轮的直径。外侧扶手带驱动链轮的直径与内侧扶手带驱动链轮的直径之间具体的差值或者说比值，主要根据扇形梯级的形状来确定。通过在扶手轴两端安装大小两种半径的扶手带驱动链轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
优选地，所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮。以上为扶手轴带动两侧的摩擦轮转动，摩擦轮与扶手带相接触，进而带动对应的扶手带运动。
更加优选地，所述外侧摩擦轮的直径大于内侧摩擦轮的直径。通过在扶手轴两端安装大小两种半径的摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
优选地，所述过渡链条连接在所述梯级驱动主轴和所述连接轴上；所述过渡链条与所述驱动链条平行，所述梯级驱动主轴与所述连接轴平行，所述过渡链条垂直于所述梯级驱动主轴和连接轴。
优选地，所述外侧扶手轴的轴线垂直于位于其上方位置的外侧扶手带，所述内侧扶手轴的轴线垂直于位于其上方位置的内侧扶手带，即驱动链轮或摩擦 轮的转动面需要与对应其上方位置的扶手带相平行，以便于顺应扶手带的走向安放扶手带驱动部件，才能达到带动扶手带运动的目的。
优选地，所述梯级驱动链轮、内侧扶手带驱动链轮或内侧摩擦轮和外侧扶手带驱动链轮或外侧摩擦轮在运行时的角速度相同。梯级驱动链轮、内侧扶手带驱动链轮和外侧扶手带驱动链轮均由同一个动力源带动，保证其三者的角速度相同才能保证梯级和内外侧的扶手带同步运行，另外通过设置内侧扶手带驱动链轮和外侧扶手带驱动链轮或内侧摩擦轮和外侧摩擦轮之间的尺寸大小不一样从而保证不同的线速度。
优选地，所述螺旋式自动扶梯的梯级为扇形设置，扇形设置的梯级之间相互噬合才能保证螺旋式自动扶梯的运行。
更加优选地，所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级驱动链轮的直径小于外侧梯级驱动链轮的直径。与扶手带驱动机构的原理类似，内侧梯级驱动链轮和外侧梯级驱动链轮之间的角速度相同而线速度不同，内侧梯级驱动链轮的直径需小于外侧梯级驱动链轮的直径，具体的设置与扇形梯级的形状有关。
在一些实施例中，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条；所述外侧扶手带驱动链轮的直径大于所述内侧扶手带驱动链轮的直径；所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮；所述外侧摩擦轮的直径大于内侧摩擦轮的直径；所述过渡链条连接在所述梯级驱动主轴和所述连接轴上；所述过渡链条与所述驱动链条平行，所述梯级驱动主轴与所述连接轴平行，所述过渡链条垂直于所述梯级驱动主轴和连接轴；所述外侧扶手轴的轴线垂直于位于其上方位置的外侧扶手带，所述内侧扶手轴的轴线垂直于位于其上方位置的内侧扶手带；所述螺旋式自动扶梯的梯级为扇形设置；所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级 驱动链轮的直径小于外侧梯级驱动链轮的直径。
以上的螺旋式自动扶梯的扶手带驱动装置，其结构设计合理，以链条传动为基础通过特殊扶手轴结构使之在传递转矩的同时能改变扶手轴输出部分轴线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化，通过在扶手轴两端安装大小两种半径链轮或摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
本发明还提供了一种螺旋式自动扶梯，其包括了如上所述螺旋式自动扶梯的梯级结构以及其他的可以根据本领域的常规手段得到的零部件。
与现有技术相比，本发明的有益之处在于：本发明螺旋式自动扶梯的扶手带驱动装置，1.梯级和两侧扶手带的最初动力来源于同一驱动链条或驱动主轴，使二者能同时启停步动，保证了乘梯的安全；
2.将链传动的轴分成了过渡轴和扶手轴且过渡轴使用万向轴结构，即能稳定的传递扭矩又便于改变扶手驱动部件的安装角度，而且角度调整幅度大，适用的螺旋梯路旋转半径可大可小，结构简单可靠，安装方便；或，将链传动的轴分成了过渡轴和扶手轴且过渡轴使用万向轴结构，即能稳定的传递扭矩又便于改变扶手驱动部件的安装角度，而且角度调整幅度大，适用的螺旋梯路旋转半径可大可小，结构简单可靠，安装方便；
3.通过调整扶手轴两端链轮齿数比即直径比或摩擦轮直径比来改变两侧扶手带的速度，从而使内圈、外圈的螺旋形扶手带能获得与螺旋梯级同步运行的角速度；
4.本发明的扶手驱动装置适用范围广，适用于左旋上升或右旋上升的任意螺旋式自动扶梯。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明优选实施例中螺旋式自动扶梯的扶手带驱动装置安装的立体示意图；
图2为本发明优选实施例1中螺旋式自动扶梯的扶手带驱动装置安装的俯 视示意图；
图3为图2中的I部放大图；
图4为本发明优选实施例2中螺旋式自动扶梯的扶手带驱动装置安装的俯视示意图；
图5为图4中的I部放大图；
其中：驱动主机-1，驱动链条-2，梯级驱动主轴-3，驱动链轮-4，过渡链条-5，内侧过渡链条-5a，外侧过渡链条-5b，内侧扶手带驱动链条-6a，外侧扶手带驱动链条-6b，扶手轴-7，内侧扶手轴-7a，外侧扶手轴-7b，连接轴-7c，内侧扶手带驱动链轮-8a，外侧扶手带驱动链轮-8b，内侧梯级驱动链轮-9a，外侧梯级驱动链轮-9b，内侧扶手带-10a，外侧扶手带-10b，玻璃-11，梯级-12，内侧过渡轴-13a，外侧过渡轴-13b。
具体实施方式
为了使本技术领域的人员更好地理解本发明的技术方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
实施例1
参照图1-3，本实施例的一种螺旋式自动扶梯的扶手带驱动装置，包括驱动主机1、梯级驱动主轴3、连接梯级驱动主轴3和驱动主机1的驱动链条2以及用于驱动扶手带运动的扶手轴7，梯级驱动主轴3与扶手轴7之间还设置有过渡轴，过渡轴包括靠近外侧扶手带10b的外侧过渡轴13b以及靠近内侧扶手带10a的内侧过渡轴13a，外侧过渡轴13b和内侧过渡轴13a之间的连接为万向结构即过渡轴为万向轴，梯级驱动主轴3与内侧过渡轴13a之间通过内侧过渡链条5a同步转动，扶手轴7与外侧过渡轴13b之间通过外侧过渡链条5b同步转动，扶手轴7靠近外侧扶手带10b的一侧具有外侧扶手带驱动机构，扶手轴7靠近内侧扶手带10a的一侧具有内侧扶手带驱动机构。
梯级驱动主轴3上靠近内侧梯级驱动链轮9a上设置有与驱动链条2相配合的驱动链轮4，通过驱动主机1带动驱动链条2进而带动梯级驱动主轴3转动，一方面，梯级驱动主轴3转动带动梯级12运动；另一方面，过渡轴上的内侧过渡轴13a通过内侧过渡链条5a与梯级驱动主轴3同步转动，外侧过渡轴13b 通过外侧过渡链条5b与扶手轴7同步转动，所以梯级驱动主轴3转动带动内侧过渡轴13a转动，过渡轴为万向轴即内侧过渡轴13a和外侧过渡轴13b之间为万向结构，内侧过渡轴13a转动带动外侧过渡轴13b转动进而带动扶手轴7转动，扶手轴7两端的外侧扶手带驱动机构和内侧扶手带驱动机构转动，实现扶手带与梯级12的同步运行。在传递转矩的同时能改变扶手轴7输出部分轴线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化。
本实施例中的外侧扶手带驱动机构包括外侧扶手带驱动链轮8b、带动外侧扶手带10b运动的摩擦轮或直线压滚式传动装置以及连接外侧扶手带驱动链轮8b与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条6b，内侧扶手带驱动机构包括内侧扶手带驱动链轮8a、带动内侧扶手带10a运动的摩擦轮或直线压滚式传动装置以及连接内侧扶手带驱动链轮8a与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条6a。以上为扶手轴7带动扶手带驱动链轮转动，通过扶手带驱动链条带动与扶手带相接触的摩擦轮或直线压滚式传动装置运行进而带动对应的扶手带运动，如图1-2所示。
如图1所示，外侧扶手带驱动链轮8b的直径大于内侧扶手带驱动链轮8a的直径。由于外侧扶手带10b的长度肯定是大于内侧扶手带10a的长度，所以外侧扶手带驱动链轮8b和内侧扶手带驱动链轮8a在运转的时候线速度是肯定不同的，但是要保证外侧扶手带驱动链轮8b和内侧扶手带驱动链轮8a转动的角速度相同，所以外侧扶手带驱动链轮8b的直径大于内侧扶手带驱动链轮8a的直径。外侧扶手带驱动链轮8b的直径与内侧扶手带驱动链轮8a的直径之间具体的差值或者说比值，主要根据扇形梯级的形状来确定。通过在扶手轴7两端安装大小不同的两种半径的扶手带驱动链轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
在其他的一些实施例中，外侧扶手带驱动机构包括带动外侧扶手带10b运动的外侧摩擦轮，内侧扶手带驱动机构包括带动内侧扶手带10a运动的内侧摩擦轮。即可以采用摩擦轮代替上述实施例中的扶手带驱动链轮和扶手带驱动链条等。扶手轴7带动两侧的摩擦轮转动，摩擦轮与扶手带相接触，进而带动对应的扶手带运动。同理，外侧摩擦轮的直径大于内侧摩擦轮的直径。通过在扶手轴7两端安装大小两种半径的摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的 特殊要求。
螺旋式自动扶梯的梯级12为扇形设置，扇形设置的梯级12之间相互噬合才能保证螺旋式自动扶梯的运行。梯级驱动主轴3的两端设置有梯级驱动链轮，梯级驱动链轮包括位于内侧的内侧梯级驱动链轮9a以及位于外侧的外侧梯级驱动链轮9b，内侧梯级驱动链轮9a的直径小于外侧梯级驱动链轮9b的直径。与扶手带驱动机构的原理类似，内侧梯级驱动链轮9a和外侧梯级驱动链轮9b之间的角速度相同而线速度不同，内侧梯级驱动链轮9a的直径需小于外侧梯级驱动链轮9b的直径。
如图2所示，扶手轴7的轴线垂直于位于其上方位置的内侧扶手带10a和外侧扶手带10b，即扶手带驱动链轮或摩擦轮的转动面需要与对应其上方位置的扶手带相平行，以便于顺应扶手带的走向安放扶手带驱动部件，才能达到带动扶手带运动的目的。
梯级驱动主轴3与内侧过渡轴13a平行，扶手轴7与外侧过渡轴13b平行，内侧过渡链条5a垂直于梯级驱动主轴3和内侧过渡轴13a，外侧过渡链条5b垂直于扶手轴7和外侧过渡轴13b。
梯级驱动链轮、内侧扶手带驱动链轮8a或内侧摩擦轮和外侧扶手带驱动链轮8b或外侧摩擦轮在运行时的角速度相同。梯级驱动链轮、内侧扶手带驱动链轮8a和外侧扶手带驱动链轮8b均由同一个动力源带动，保证其三者的角速度相同才能保证梯级和内外侧的扶手带同步运行，另外通过设置内侧扶手带驱动链轮8a和外侧扶手带驱动链轮8b或内侧摩擦轮和外侧摩擦轮之间的直径大小不一样从而保证不同的线速度。
本实施例中的链条也可以采用其他的传动装置如皮带、履带等代替，如图1-2所示，在有链条的地方需要设定相应的链轮，这样才能通过链条带动相对应的轴转动。
本实施例的扶手带驱动装置在梯级驱动主轴3和扶手轴7之间增加一个过渡轴，此过渡轴包括两段分轴即内侧过渡轴13a和外侧过渡轴13b，内侧过渡轴13a和外侧过渡轴13b之间通过万向结构连接，通过万向轴的结构改变分轴轴线之间的夹角从而改变扶手驱动链条5b的输出方向，使扶手轴7近乎垂直于所在的扶手带，便于安放扶手带驱动装置。此种结构需要两级扶手驱动链条即内侧过渡链条5a和外侧过渡链条5b。在其他的一些实施例中，一方面可以将设置多个过渡轴以适应梯级驱动主轴3与扶手轴7之间夹角过大的情况，另一 方面也可以将过渡轴分为多个分轴以使扶手轴7更好地与其对应的扶手带相配合。
本实施例的一种螺旋式自动扶梯的扶手带驱动装置，其结构设计合理，以链条传动为基础通过特殊过渡轴的结构使之在传递转矩的同时能改变扶手轴输出部分轴线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化，通过在扶手轴两端安装大小两种半径链轮或摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。本发明的一种螺旋式自动扶梯的扶手带驱动装置具有如下优点：1.梯级和两侧扶手带的最初动力来源于同一驱动链条或驱动主轴，使二者能同时启停步动，保证了乘梯的安全；2.将链传动的轴分成了过渡轴和扶手轴且过渡轴使用万向轴结构，即能稳定的传递扭矩又便于改变扶手驱动部件的安装角度，而且角度调整幅度大，适用的螺旋梯路旋转半径可大可小，结构简单可靠，安装方便；3.通过调整扶手轴两端链轮齿数比即直径比或摩擦轮直径比来改变两侧扶手带的速度，从而使内圈、外圈的螺旋形扶手带能获得与螺旋梯级同步运行的角速度；4.本发明的扶手驱动装置适用范围广，适用于左旋上升或右旋上升的任意螺旋式自动扶梯。
实施例2
参照图1和4-5，本实施例的一种螺旋式自动扶梯的扶手带驱动装置，包括驱动主机1、梯级驱动主轴3、连接梯级驱动主轴3和驱动主机1的驱动链条2、用于驱动扶手带运动的扶手轴7以及带动扶手轴7与梯级驱动主轴3同步转动的过渡链条5。
如图4-5所示，扶手轴7包括靠近外侧扶手带10b的外侧扶手轴7b、靠近内侧扶手带10a的内侧扶手轴7a以及连接外侧扶手轴7b与内侧扶手轴7a的连接轴7c，外侧扶手轴7b以及内侧扶手轴7a与连接轴7c之间的连接均为万向结构，即扶手轴7为万向轴。外侧扶手轴7b靠近外侧扶手的一侧具有外侧扶手带驱动机构，内侧扶手轴7a靠近内侧扶手的一侧具有内侧扶手带驱动机构。
梯级驱动主轴3上靠近内侧梯级驱动链轮9a上设置有与驱动链条2相配合的驱动链轮4，通过驱动主机1带动驱动链条2进而带动梯级驱动主轴3转动。一方面，梯级驱动主轴3转动带动梯级12转动；另一方面，扶手轴7上的连接轴7c通过过渡链条5与梯级驱动主轴3同步转动，所以梯级驱动主轴3转动带动扶手轴7转动，进而带动外侧扶手带驱动机构和内侧扶手带驱动机构转动， 实现扶手带与梯级12的同步运行。且扶手轴7为万向轴，扶手轴7上的连接轴7c、内侧扶手轴7a和外侧扶手轴7b同步转动，在传递转矩的同时能改变扶手轴7输出部分轴线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化。
本实施例中的外侧扶手带驱动机构包括外侧扶手带驱动链轮8b、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接外侧扶手带驱动链轮8b与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条6b，内侧扶手带驱动机构包括内侧扶手带驱动链轮8a、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接内侧扶手带驱动链轮8a与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条6a。即本实施例中扶手轴7带动扶手带驱动链轮转动，通过扶手带驱动链条带动与扶手带相接触的摩擦轮或直线压滚式传动装置运行进而带动对应的扶手带运动，如图1和4所示。
如图1所示，外侧扶手带驱动链轮8b的直径大于内侧扶手带驱动链轮8a的直径。由于外侧扶手带10b的长度肯定是大于内侧扶手带10a的长度，所以外侧扶手带驱动链轮8b和内侧扶手带驱动链轮8a在运转的时候线速度是肯定不同的，但是要保证外侧扶手带驱动链轮8b和内侧扶手带驱动链轮8a转动的角速度相同，所以外侧扶手带驱动链轮8b的直径大于内侧扶手带驱动链轮8a的直径。外侧扶手带驱动链轮8b的直径与内侧扶手带驱动链轮8a的直径之间具体的差值或者说比值，主要根据扇形梯级的形状来确定。通过在扶手轴7两端安装大小不同的两种半径的扶手带驱动链轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
在其他的一些实施例中，外侧扶手带驱动机构包括带动外侧扶手带10b运动的外侧摩擦轮，内侧扶手带驱动机构包括带动内侧扶手带10a运动的内侧摩擦轮。即可以采用摩擦轮代替上述实施例中的扶手带驱动链轮和扶手带驱动链条等。扶手轴7带动两侧的摩擦轮转动，摩擦轮与扶手带相接触，进而带动对应的扶手带运动。同理，外侧摩擦轮的直径大于内侧摩擦轮的直径。通过在扶手轴7两端安装大小两种半径的摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。
螺旋式自动扶梯的梯级12为扇形设置，扇形设置的梯级12之间相互噬合 才能保证螺旋式自动扶梯的运行。梯级驱动主轴3的两端设置有梯级驱动链轮，梯级驱动链轮包括位于内侧的内侧梯级驱动链轮9a以及位于外侧的外侧梯级驱动链轮9b，内侧梯级驱动链轮9a的直径小于外侧梯级驱动链轮9b的直径。与扶手带驱动机构的原理类似，内侧梯级驱动链轮9a和外侧梯级驱动链轮9b之间的角速度相同而线速度不同，内侧梯级驱动链轮9a的直径需小于外侧梯级驱动链轮9b的直径。
如图4所示，过渡链条5连接在梯级驱动主轴3和连接轴7c上；过渡链条5与驱动链条2平行，梯级驱动主轴3与连接轴7c平行，过渡链条5垂直于梯级驱动主轴3和连接轴7c。且外侧扶手轴7b的轴线垂直于对应其上方位置的外侧扶手带10b，内侧扶手轴7a的轴线垂直于对应其上方位置的内侧扶手带10a，即驱动链轮或摩擦轮的转动面需要与对应其上方的扶手带相平行，才能达到带动扶手带运动的目的。
梯级驱动链轮、内侧扶手带驱动链轮8a或内侧摩擦轮和外侧扶手带驱动链轮8b或外侧摩擦轮在运行时的角速度相同。梯级驱动链轮、内侧扶手带驱动链轮8a和外侧扶手带驱动链轮8b均由同一个动力源带动，保证其三者的角速度相同才能保证梯级和内外侧的扶手带同步运行，另外通过设置内侧扶手带驱动链轮8a和外侧扶手带驱动链轮8b或内侧摩擦轮和外侧摩擦轮之间的直径大小不一样从而保证不同的线速度。
本实施例中的链条也可以采用其他的传动装置如皮带、履带等代替，如图1和4所示，在有链条的地方需要设定相应的链轮，这样才能通过链条带动相对应的轴转动。
当螺旋式自动扶梯工作时，由驱动主机1通过驱动链条2带动驱动链轮4和梯级驱动主轴3以及连接在梯级驱动主轴3两端的梯级驱动链轮转动，进而带动梯级12向上或向下运转，同时固定在梯级驱动主轴3通过过渡链条5牵引扶手轴7一起转动。而扶手轴7由几段分轴内侧扶手轴7a、外侧扶手轴7b和连接轴7c组成，相邻的两个分轴之间通过万向结构连接，在连接轴7c上安装有与过渡链条5相配合的传动链轮并且此连接轴7c与梯级驱动主轴3平行，所有分轴均保持同步转动，可根据需要改变分轴轴线之间的夹角从而使扶手轴7的两端分轴即内侧扶手轴7a和外侧扶手轴7b的轴线与所对应位置的扶手带近乎垂直，以便于顺应扶手带的走向安放扶手带驱动部件，在两端分轴即内侧扶手轴7a和外侧扶手轴7b的尾端各安装一个扶手带驱动链轮或摩擦轮，当安装 扶手带驱动链轮的时候再通过扶手带驱动链条带动扶手带驱动装置驱动两侧的扶手带运转；当安装的是摩擦轮的时候，即依靠摩擦轮与扶手带之间的摩擦力带动扶手带运转。两个扶手带驱动链轮或摩擦轮转动角速度相同，但位于内侧的扶手带驱动链轮或摩擦轮的直径较小，从而可为内侧扶手带10a和外侧扶手带10b分别提供不一样的线速度。在其他的一些实施例中，也可以将扶手轴7设置成大于3段的多个分轴，只需要保证多个分轴可以同步转动且扶手轴7的两端与对应的扶手带垂直且其中一段与梯级驱动主轴3平行即可。
本实施例的螺旋式自动扶梯的扶手带驱动装置包括多段分轴的扶手轴以及其它轴、链轮、链条等传动结构或齿轮传动，在分轴之间用万向结构连接，通过多段轴和万向结构即传递了转矩又可改变输出轴或输入轴轴线方向角度，使链轮链条动力传递路径的方向角度发生变化，再通过一大一小两种链轮驱动扶手带压滚传动装置或直接用摩擦轮驱动扶手带实现两种扶手带运行速度。
本实施例的一种螺旋式自动扶梯的扶手带驱动装置，其结构设计合理，以链条传动为基础通过特殊扶手轴结构使之在传递转矩的同时能改变扶手轴输出部分轴线角度位置、让扶手带驱动链轮或摩擦轮顺应扶手带侧向弯曲变化，通过在扶手轴两端安装大小两种半径链轮或摩擦轮的方法实现两种扶手带运行速度，从而达到螺旋式自动扶梯扶手带既要侧向弯曲又要两侧角速度相同、线速度不同的特殊要求。且本发明的一种螺旋式自动扶梯的扶手带驱动装置具有如下优点：1.梯级和两侧扶手带的最初动力来源于同一驱动链条或驱动主轴，使二者能同时启停步动，保证了乘梯的安全；2.将链传动的轴分段并使用万向轴结构即能稳定的传递扭矩又便于改变扶手驱动部件的安装角度，而且角度调整幅度大，适用的螺旋梯路旋转半径可大可小，结构简单可靠，安装方便；3.通过调整扶手轴两端链轮齿数比即直径比或摩擦轮直径比来改变两侧扶手带的速度，从而使内圈、外圈的螺旋形扶手带能获得与螺旋梯级同步运行的角速度；4.本发明的扶手驱动装置适用范围广，适用于左旋上升或右旋上升的任意螺旋式自动扶梯。
实施例3
如图1所示，本实施例中的螺旋式自动扶梯，包括如实施例1和实施例2的螺旋式自动扶梯的扶手带驱动装置以及其他的可以根据本领域的常规手段得到的零部件如梯级、桁架等。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技 术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (23)

  1. 一种螺旋式自动扶梯的扶手带驱动装置，包括驱动主机、梯级驱动主轴、连接所述梯级驱动主轴和驱动主机的驱动链条以及用于驱动扶手带运动的扶手轴，梯级驱动主轴的两端设置有梯级驱动链轮，其特征在于，所述梯级驱动主轴与扶手轴之间还设置有至少一个过渡轴，所述过渡轴至少包括靠近外侧扶手带的外侧过渡轴以及靠近内侧扶手带的内侧过渡轴，所述外侧过渡轴和内侧过渡轴之间的连接为万向结构，所述梯级驱动主轴与所述内侧过渡轴之间通过内侧过渡链条同步转动，所述扶手轴与外侧过渡轴之间通过外侧过渡链条同步转动，所述扶手轴靠近所述外侧扶手带的一侧具有外侧扶手带驱动机构，所述扶手轴靠近所述内侧扶手带的一侧具有内侧扶手带驱动机构。
  2. 根据权利要求1所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条。
  3. 根据权利要求2所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动链轮的直径大于所述内侧扶手带驱动链轮的直径。
  4. 根据权利要求1所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮。
  5. 根据权利要求4所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧摩擦轮的直径大于内侧摩擦轮的直径。
  6. 根据权利要求1所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述扶手轴的轴线垂直于位于其上方位置的内侧扶手带和外侧扶手带。
  7. 根据权利要求1所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述梯级驱动主轴与所述内侧过渡轴平行，所述扶手轴与所述外侧过渡轴平行，所述内侧过渡链条垂直于所述梯级驱动主轴和所述内侧过渡轴，所述外侧过渡链条垂直于所述扶手轴和所述外侧过渡轴。
  8. 根据权利要求1所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述梯级驱动链轮、内侧扶手带驱动链轮和外侧扶手带驱动链轮在运行时的角速度相同。
  9. 根据权利要求1所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述螺旋式自动扶梯的梯级为扇形设置。
  10. 根据权利要求9所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级驱动链轮的直径小于外侧梯级驱动链轮的直径。
  11. 根据权利要求1-10任意一项所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条；所述外侧扶手带驱动链轮的直径大于所述内侧扶手带驱动链轮的直径；所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮；所述外侧摩擦轮的直径大于内侧摩擦轮的直径；所述扶手轴的轴线垂直于位于其上方位置的内侧扶手带和外侧扶手带；所述梯级驱动主轴与所述内侧过渡轴平行，所述扶手轴与所述外侧过渡轴平行，所述内侧过渡链条垂直于所述梯级驱动主轴和所述内侧过渡轴，所述外侧过渡链条垂直于所述扶手轴和所述外侧过渡轴；所述梯级驱动链轮、内侧扶手带驱动链轮和外侧扶手带驱动链轮在运行时的角速度相同；所述螺旋式自动扶梯的梯级为扇形设置；所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级驱动链轮的直径小于外侧梯级驱动链轮的直径。
  12. 一种螺旋式自动扶梯的扶手带驱动装置，包括驱动主机、梯级驱动主轴、连接所述梯级驱动主轴和驱动主机的驱动链条、用于驱动扶手带运动的扶手轴以及带动所述扶手轴与梯级驱动主轴同步转动的过渡链条，其特征在于，所述扶手轴至少包括靠近外侧扶手带的外侧扶手轴、靠近内侧扶手带的内侧扶手轴以及连接所述外侧扶手轴与内侧扶手轴的连接轴，所述外侧扶手轴以及内侧扶手轴与所述连接轴之间的连接均为万向结构，所述外侧扶手轴靠近所述外侧扶手带的一侧具有外侧扶手带驱动机构，所述内侧扶手轴靠近所述内侧扶手带的一侧具有内侧扶手带驱动机构。
  13. 根据权利要求12所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式 传动装置的内侧扶手带驱动链条。
  14. 根据权利要求13所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动链轮的直径大于所述内侧扶手带驱动链轮的直径。
  15. 根据权利要求12所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮。
  16. 根据权利要求15所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧摩擦轮的直径大于内侧摩擦轮的直径。
  17. 根据权利要求12所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述过渡链条连接在所述梯级驱动主轴和所述连接轴上。
  18. 根据权利要求12所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述过渡链条与所述驱动链条平行，所述梯级驱动主轴与所述连接轴平行，所述过渡链条垂直于所述梯级驱动主轴和连接轴。
  19. 根据权利要求12所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手轴的轴线垂直于位于其上方位置的外侧扶手带，所述内侧扶手轴的轴线垂直于位于其上方位置的内侧扶手带。
  20. 根据权利要求12所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述螺旋式自动扶梯的梯级为扇形设置。
  21. 根据权利要求20所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级驱动链轮的直径小于外侧梯级驱动链轮的直径。
  22. 根据权利要求12-21任意一项所述的一种螺旋式自动扶梯的扶手带驱动装置，其特征在于，所述外侧扶手带驱动机构包括外侧扶手带驱动链轮、带动外侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述外侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的外侧扶手带驱动链条，所述内侧扶手带驱动机构包括内侧扶手带驱动链轮、带动内侧扶手带运动的摩擦轮或直线压滚式传动装置以及连接所述内侧扶手带驱动链轮与摩擦轮或直线压滚式传动装置的内侧扶手带驱动链条；所述外侧扶手带驱动链轮的直径大于所述内侧扶手带驱动链轮的直径；所述外侧扶手带驱动机构包括带动外侧扶手带运动的外侧摩擦轮，所述内侧扶手带驱动机构包括带动内侧扶手带运动的内侧摩擦轮；所述外侧摩擦轮的直径大于内侧摩擦轮的直径；所述过渡链条连接在所述梯级驱动主轴和所述连接轴上；所述过渡 链条与所述驱动链条平行，所述梯级驱动主轴与所述连接轴平行，所述过渡链条垂直于所述梯级驱动主轴和连接轴；所述外侧扶手轴的轴线垂直于位于其上方位置的外侧扶手带，所述内侧扶手轴的轴线垂直于位于其上方位置的内侧扶手带；所述螺旋式自动扶梯的梯级为扇形设置；所述梯级驱动主轴的两端设置有梯级驱动链轮，所述梯级驱动链轮包括位于内侧的内侧梯级驱动链轮以及位于外侧的外侧梯级驱动链轮，所述内侧梯级驱动链轮的直径小于外侧梯级驱动链轮的直径。
  23. 一种螺旋式自动扶梯，其特征在于，包括如权利要求1或12所述的螺旋式自动扶梯的扶手带驱动装置。
PCT/CN2019/118644 2018-11-29 2019-11-15 螺旋式自动扶梯的扶手带驱动装置及螺旋式自动扶梯 WO2020108323A1 (zh)

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CN1140440A (zh) * 1994-02-09 1997-01-15 O&K自动扶梯有限公司 盘旋滚动电梯
JPH09169483A (ja) * 1995-12-22 1997-06-30 Nkk Corp 可変速型乗客コンベアの手すり装置
JP2006131407A (ja) * 2004-11-04 2006-05-25 Okimoto Tamada 動く歩道
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