CN112707299A - Automatic tight pulley device that rises in handrail area and built-in device's escalator - Google Patents
Automatic tight pulley device that rises in handrail area and built-in device's escalator Download PDFInfo
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- CN112707299A CN112707299A CN201911020663.9A CN201911020663A CN112707299A CN 112707299 A CN112707299 A CN 112707299A CN 201911020663 A CN201911020663 A CN 201911020663A CN 112707299 A CN112707299 A CN 112707299A
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- 238000000034 method Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000005622 photoelectricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B27/00—Indicating operating conditions of escalators or moving walkways
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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
- B66B23/16—Means allowing tensioning of the endless member
- B66B23/20—Means allowing tensioning of the endless member for handrails
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
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- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses an automatic tension pulley device for a hand strap. The method comprises the following steps: a controller; the input interface is connected with the controller and is used for transmitting real-time data to the controller; the server interface is used for monitoring real-time data of a hand strap of the escalator; one end of the communication interface is communicated with the input interface, the other end of the communication interface is communicated with the server interface, and the communication interface is used for transmitting the real-time data fed back by the server interface to the input interface; a first tensioning motor and a second tensioning motor; the pulse interface comprises a first tensioning pulse signal interface and a second tensioning pulse signal interface, and the first tensioning pulse signal interface and the second tensioning pulse signal interface are respectively used for sending differential signals to the first tensioning motor and the second tensioning motor. The invention does not need to manually test the tension of the handrail belt, thereby reducing the maintenance cost. Avoids the injury of personnel caused by slipping due to insufficient tension of the hand strap.
Description
Technical Field
The invention relates to the technical field of motor control, in particular to an automatic tension pulley device for a handrail belt and a handrail ladder with the device.
Background
The hand strap of the escalator is a very important component of the escalator, the hand strap moves synchronously with the steps, and passengers basically hold the hand strap with hands when riding the escalator to prevent the passengers from falling down. The existing escalator has long running time, the tension of a handrail belt is insufficient, and the phenomenon of skidding can happen along with the insufficient tension, so that people taking the escalator are injured.
The hand strap of the existing escalator has no sensor to detect the tension of the hand strap, and can only be seen by eyes or people feel whether the tension of the hand strap is proper or not. Due to the difference of experience of maintenance personnel, whether the tension of the hand strap is proper or not can not be judged sometimes, so that the escalator steps and the hand strap are asynchronous, and the personnel taking the escalator are injured.
In addition, once the tension of the handrail belt is detected to be too small and needs to be tensioned, the cover plate of the escalator needs to be opened and climbs into a machine room to tension the handrail belt, so that the maintenance work is inconvenient, and the maintenance efficiency is reduced.
Therefore, there is a need for more convenient detection devices and maintenance devices to address this problem.
Disclosure of Invention
The invention aims to provide an automatic hand strap tensioning wheel device which can solve one or more problems of insufficient tension of a hand strap of an elevator in the prior art.
The embodiment of the invention provides an automatic tension pulley device for a hand strap, which is used for controlling and maintaining the tension of the hand strap of a hand ladder and comprises the following components:
a controller;
the power interface is connected with the controller and is used for providing power for the automatic hand strap tensioning wheel device;
the input interface is connected with the controller and is used for transmitting real-time data to the controller;
the server interface is used for monitoring real-time data of a hand strap of the escalator;
one end of the communication interface is communicated with the input interface, the other end of the communication interface is communicated with the server interface, and the communication interface is used for transmitting the real-time data fed back by the server interface to the input interface;
the first tensioning motor and the second tensioning motor are respectively used for increasing or reducing the tension of the handrail belt of the escalator;
the pulse interface comprises a first tensioning pulse signal interface and a second tensioning pulse signal interface, and the first tensioning pulse signal interface and the second tensioning pulse signal interface are respectively used for sending differential signals to the first tensioning motor and the second tensioning motor.
Further, the power interface is used for providing DC24V power.
Further, the real-time data comprise real-time tension, an alarm signal, the number of times of tensioning actions, the running speed, the escalator direction and whether the escalator touches the limit or not.
Further, the method also comprises the following steps:
the escalator comprises a first speed measurement photoelectric unit and a second speed measurement photoelectric unit, wherein the first speed measurement photoelectric unit is used for measuring the running speed of the escalator, and the second speed measurement photoelectric unit is used for measuring the running direction of the escalator;
the first limit switch is used for limiting the limit displacement of the first tensioning motor, and the second limit switch is used for limiting the limit displacement of the second tensioning motor.
Furthermore, the real-time tension comprises a first real-time tension signal and a second real-time tension signal, and the first real-time tension signal and the second real-time tension signal are respectively used for monitoring tension signals of hand straps on two sides of the escalator.
Further, the triggering of the alarm signal satisfies the following judgment method: when the first tension signal is less than 300N, triggering the alarm signal until the first tension signal is between 300 and 400N, and when the second tension signal is greater than 400N, triggering the alarm signal until the second tension signal is between 300 and 400N.
Further, the first tensioning motor and the second tensioning motor have the same structure, the first tensioning motor comprises a motor body, a screw rod, a first tensioning wheel and a second tensioning wheel, the output end of the motor body is connected with one end of the screw rod, and the other end of the screw rod is connected with the first tensioning wheel and the second tensioning wheel.
Further, a torsion sensor and a first limit switch are arranged between the screw rod and the first tensioning wheel and between the screw rod and the second tensioning wheel, the first limit switch is used for limiting displacement of the first tensioning wheel and displacement of the second tensioning wheel, and the torsion sensor is used for monitoring a torsion angle of the screw rod.
The embodiment of the invention provides an escalator with a built-in automatic handrail tensioning wheel device, which comprises the automatic handrail tensioning wheel device as claimed in claims 1-8.
The automatic tension wheel device for the handrail belt and the escalator with the device built in the automatic tension wheel device for the handrail belt can automatically detect the tension of the handrail belt, and when the average tension in a period of time is smaller than a set value, the automatic tension wheel device for the handrail belt is started, so that the tension of the handrail belt does not need to be tested manually, and the maintenance cost is reduced. Avoids the injury of personnel caused by slipping due to insufficient tension of the hand strap.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a structural block diagram of an automatic tension roller device for a handrail belt according to an embodiment of the present invention.
Fig. 2 is a schematic view of a first tension motor of the automatic handrail belt tension roller device according to the embodiment of the invention.
Shown in the figure, 1, a tension wheel; 2. a first tensioning motor; 3. a screw rod; 4. a torque sensor; 5. a first limit switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, fig. 1 and 2 are views illustrating an automatic tightening roller device for a handrail belt according to an embodiment of the present invention.
The embodiment of the invention provides an automatic tension pulley device for a hand strap, which is used for controlling and maintaining the tension of the hand strap of a hand ladder and comprises the following components:
a controller;
the power interface is connected with the controller and is used for providing power for the automatic hand strap tensioning wheel device;
the input interface is connected with the controller and is used for transmitting real-time data to the controller;
the server interface is used for monitoring real-time data of a hand strap of the escalator;
one end of the communication interface is communicated with the input interface, the other end of the communication interface is communicated with the server interface, and the communication interface is used for transmitting the real-time data fed back by the server interface to the input interface;
the first tensioning motor and the second tensioning motor are respectively used for increasing or reducing the tension of the handrail belt of the escalator;
the pulse interface comprises a first tensioning pulse signal interface and a second tensioning pulse signal interface, and the first tensioning pulse signal interface and the second tensioning pulse signal interface are respectively used for sending differential signals to the first tensioning motor and the second tensioning motor.
Further, the power interface is used for providing DC24V power.
Further, the real-time data comprise real-time tension, an alarm signal, the number of times of tensioning actions, the running speed, the escalator direction and whether the escalator touches the limit or not.
Further, the method also comprises the following steps:
the escalator comprises a first speed measurement photoelectric unit and a second speed measurement photoelectric unit, wherein the first speed measurement photoelectric unit is used for measuring the running speed of the escalator, and the second speed measurement photoelectric unit is used for measuring the running direction of the escalator; two speed measuring photoelectricity are used for measuring the running speed and the running direction of the escalator. The tensioning action must be run at the rated speed of the escalator, and the threshold value of the tensioning action is different in different directions and different in value. The controller counts the speed measuring photoelectricity in sequence, when one photoelectric signal is lost, the controller can alarm that the photoelectricity 1 or the photoelectricity 2 is lost, the speed is 0, and the alarm direction is lost.
The first limit switch is used for limiting the limit displacement of the first tensioning motor, and the second limit switch is used for limiting the limit displacement of the second tensioning motor. The two limit switches are respectively arranged on the left hand strap and the right hand strap, and if the left hand strap touches the limit from left to right in the tensioning process, the hand strap cannot be tensioned continuously. When the limit switch wire is broken, the controller can alarm to limit.
Furthermore, the real-time tension comprises a first real-time tension signal and a second real-time tension signal, and the first real-time tension signal and the second real-time tension signal are respectively used for monitoring tension signals of hand straps on two sides of the escalator. The two tension signals are available, so that the tension signal can be monitored in real time, the average tension signal within a period of time can also be monitored, and the time can be set. When the tension signal line is broken, the tension reaches the maximum value, and the controller can alarm that the tension signal is wrong. Or the tension signal is too large or too small, the controller can alarm and automatically stop running.
Further, the triggering of the alarm signal satisfies the following judgment method: when the first tension signal is less than 300N, the alarm signal is triggered until the first tension signal is between 100 and 400N, and when the second tension signal is greater than 400N, the alarm signal is triggered until the second tension signal is between 100 and 400N.
Further, the first tensioning motor and the second tensioning motor have the same structure, the first tensioning motor comprises a motor body, a screw rod, a first tensioning wheel and a second tensioning wheel, the output end of the motor body is connected with one end of the screw rod, and the other end of the screw rod is connected with the first tensioning wheel and the second tensioning wheel.
Further, a torsion sensor and a first limit switch are arranged between the screw rod and the first tensioning wheel and between the screw rod and the second tensioning wheel, the first limit switch is used for limiting displacement of the first tensioning wheel and displacement of the second tensioning wheel, and the torsion sensor is used for monitoring a torsion angle of the screw rod.
The embodiment of the invention provides an escalator with a built-in automatic handrail tensioning wheel device, which comprises the automatic handrail tensioning wheel device as claimed in claims 1-8.
The escalator can run independently without depending on an escalator control system. The escalator control system can acquire data such as real-time tension, hand strap tensioning times, loosening times and the like through the communication port according to needs.
The tension of the handrail belt of the normal escalator should be between 300N and 400N, when the server interface of the controller detects that the tension of the handrail belt is less than 300N within a period of time, the first tensioning motor is enabled to rotate an angle towards the tensioning direction, and when the tension of the handrail belt is detected to be less than 300N within a second control period, the first tensioning motor continues to rotate an angle towards the tensioning direction until the tension of the handrail belt is between 300 and 400N. When the controller detects that the tension of the hand strap is greater than 400N within a period of time, the second tensioning motor is enabled to rotate an angle towards the loosening direction, if the tension of the hand strap is still greater than 400N within a second control period, the second tensioning motor continues to rotate an angle towards the loosening direction until the tension of the hand strap is between 300 and 400N, the tension range of the hand strap is different between different types of ladders, and the ladders in the tension range move up and down differently. The escalator is provided with two proximity switches, and the escalator is rotated by steps to test the direction and speed of the escalator, wherein the directions are different, and the tension range of the handrail belt is different. The invention can perform tensioning and loosening actions only when the escalator runs at a fixed speed.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The use of the phrase "including a" does not exclude the presence of other, identical elements in a process, method, article, or apparatus that comprises the same element, unless the context clearly dictates otherwise.
Claims (9)
1. The utility model provides an automatic tight pulley device that rises in handrail area for control and maintain the tension of the handrail area of hand ladder, its characterized in that includes:
a controller;
the power interface is connected with the controller and is used for providing power for the automatic hand strap tensioning wheel device;
the input interface is connected with the controller and is used for transmitting real-time data to the controller;
the server interface is used for monitoring real-time data of a hand strap of the escalator;
one end of the communication interface is communicated with the input interface, the other end of the communication interface is communicated with the server interface, and the communication interface is used for transmitting the real-time data fed back by the server interface to the input interface;
the first tensioning motor and the second tensioning motor are respectively used for increasing or reducing the tension of the handrail belt of the escalator;
the pulse interface comprises a first tensioning pulse signal interface and a second tensioning pulse signal interface, and the first tensioning pulse signal interface and the second tensioning pulse signal interface are respectively used for sending differential signals to the first tensioning motor and the second tensioning motor.
2. The automatic tension roller device for handrail belt as claimed in claim 1, wherein the power interface is used for providing a DC24V power.
3. The automatic tension roller device for the handrail belt as claimed in claim 1, wherein the real-time data comprises real-time tension, alarm signal, number of tensioning actions, running speed, direction of the escalator and limit collision.
4. The automatic tension roller device for the handrail belt as claimed in claim 1, further comprising:
the escalator comprises a first speed measurement photoelectric unit and a second speed measurement photoelectric unit, wherein the first speed measurement photoelectric unit is used for measuring the running speed of the escalator, and the second speed measurement photoelectric unit is used for measuring the running direction of the escalator;
the first limit switch is used for limiting the limit displacement of the first tensioning motor, and the second limit switch is used for limiting the limit displacement of the second tensioning motor.
5. The automatic tension wheel device for the handrail belt as claimed in claim 3, wherein the real-time tension comprises a first real-time tension signal and a second real-time tension signal, and the first real-time tension signal and the second real-time tension signal are respectively used for monitoring the tension signals of the handrail belts on both sides of the escalator.
6. The automatic tension roller device for the handrail belt as claimed in claim 5, wherein the triggering of the alarm signal satisfies the following judgment method: when the first tension signal is less than 300N, triggering the alarm signal until the first tension signal is between 300 and 400N, and when the second tension signal is greater than 400N, triggering the alarm signal until the second tension signal is between 300 and 400N.
7. The automatic tension roller device for a handrail belt according to claim 1, wherein the first tension motor and the second tension motor have the same structure, the first tension motor comprises a motor body, a lead screw, a first tension roller and a second tension roller, an output end of the motor body is connected with one end of the lead screw, and the other end of the lead screw is connected with both the first tension roller and the second tension roller.
8. The automatic tension roller device for handrail belt as claimed in claim 7, wherein a torque sensor and a first limit switch are further disposed between the lead screw and the first tension roller and the second tension roller, the first limit switch is used for limiting the displacement of the first tension roller and the second tension roller, and the torque sensor is used for monitoring the torsion angle of the lead screw.
9. A escalator, characterized in that it comprises an automatic tension roller device of handrail belt according to claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020663.9A CN112707299A (en) | 2019-10-24 | 2019-10-24 | Automatic tight pulley device that rises in handrail area and built-in device's escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020663.9A CN112707299A (en) | 2019-10-24 | 2019-10-24 | Automatic tight pulley device that rises in handrail area and built-in device's escalator |
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| Publication Number | Publication Date |
|---|---|
| CN112707299A true CN112707299A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911020663.9A Pending CN112707299A (en) | 2019-10-24 | 2019-10-24 | Automatic tight pulley device that rises in handrail area and built-in device's escalator |
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| Country | Link |
|---|---|
| CN (1) | CN112707299A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3621970A (en) * | 1969-10-13 | 1971-11-23 | Goodyear Tire & Rubber | Handrail drive for passenger conveyor |
| CN101417767A (en) * | 2008-12-08 | 2009-04-29 | 苏州新达电扶梯部件有限公司 | Handrail tensioning device of escalator |
| CN103112774A (en) * | 2013-01-24 | 2013-05-22 | 沃克斯电梯（中国）有限公司 | Hand strap tensing device automatic adjustment mechanism |
| CN105197752A (en) * | 2015-11-09 | 2015-12-30 | 苏州汉森电梯有限公司 | Handrail tensioning adjusting device of escalator |
| CN105600664A (en) * | 2014-11-20 | 2016-05-25 | 上海现代电梯制造有限公司 | Escalator handrail belt speed detection method |
| CN110329890A (en) * | 2019-07-23 | 2019-10-15 | 浙江梅轮电梯股份有限公司 | A kind of stair step chain tensioner detection device |
| CN211393516U (en) * | 2019-10-24 | 2020-09-01 | 杭州太阳德克电气有限公司 | Automatic tight pulley device that rises in handrail area and built-in device's escalator |
-
2019
- 2019-10-24 CN CN201911020663.9A patent/CN112707299A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3621970A (en) * | 1969-10-13 | 1971-11-23 | Goodyear Tire & Rubber | Handrail drive for passenger conveyor |
| CN101417767A (en) * | 2008-12-08 | 2009-04-29 | 苏州新达电扶梯部件有限公司 | Handrail tensioning device of escalator |
| CN103112774A (en) * | 2013-01-24 | 2013-05-22 | 沃克斯电梯（中国）有限公司 | Hand strap tensing device automatic adjustment mechanism |
| CN105600664A (en) * | 2014-11-20 | 2016-05-25 | 上海现代电梯制造有限公司 | Escalator handrail belt speed detection method |
| CN105197752A (en) * | 2015-11-09 | 2015-12-30 | 苏州汉森电梯有限公司 | Handrail tensioning adjusting device of escalator |
| CN110329890A (en) * | 2019-07-23 | 2019-10-15 | 浙江梅轮电梯股份有限公司 | A kind of stair step chain tensioner detection device |
| CN211393516U (en) * | 2019-10-24 | 2020-09-01 | 杭州太阳德克电气有限公司 | Automatic tight pulley device that rises in handrail area and built-in device's escalator |
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