CN111847143A - Novel elevator leveling method and leveling device - Google Patents
Novel elevator leveling method and leveling device Download PDFInfo
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- CN111847143A CN111847143A CN202010863877.9A CN202010863877A CN111847143A CN 111847143 A CN111847143 A CN 111847143A CN 202010863877 A CN202010863877 A CN 202010863877A CN 111847143 A CN111847143 A CN 111847143A
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- control unit
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008569 process Effects 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a novel elevator leveling method and a novel elevator leveling device, wherein the pulse number generated by the movement of a car is collected through an encoder unit arranged on a speed limiter; comparing the collected pulse number with the flat layer pulse data stored through self-learning through the main control unit; the elevator control unit controls the elevator leveling according to the comparison result. The invention can save the trouble of installing the bridge plate on each layer of the hoistway, has high reliability, high precision and strong anti-interference capability, can greatly reduce the failure rate and improve the operation efficiency of the elevator.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to a novel elevator leveling method and a corresponding elevator leveling device.
Background
The elevator leveling device is a device which collects elevator position signals and cooperates with an elevator to finish leveling action.
In the existing elevator leveling device, the elevator position signal is basically acquired by matching an optoelectronic switch or a magnetic inductor which is arranged on the car with each layer of bridge plate which is arranged in a hoistway to give the position of the car. And because the wearing and tearing of guide shoe and the vibrations of car in the operation in-process at the elevator actual operation in-process for the fit clearance is difficult to adjust, causes the inaccurate unreliable of signal acquisition, makes the elevator trouble frequent.
Disclosure of Invention
The invention provides a novel elevator leveling method and a novel elevator leveling device, which can be used for avoiding the trouble of installing a bridge plate on each floor of a hoistway, have good reliability and improve the operation efficiency of an elevator.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a novel elevator leveling method comprises the following steps: acquiring the pulse number generated by the movement of the car through an encoder unit arranged on the speed limiter; comparing the collected pulse number with the flat layer pulse data stored through self-learning through the main control unit; the elevator control unit controls the elevator leveling according to the comparison result.
Further, the installation method of the encoder unit is as follows: the encoder unit adopts rotary encoder, and the overspeed governor adopts the overspeed governor that is equipped with the rotation axis, and rotary encoder installs on the rotation axis of overspeed governor.
Further, the connection method of the main control unit is as follows: the main control unit adopts a PLC control unit, and a signal wire of the encoder unit is connected with the input end of the PLC control unit; the output end line of the PLC control unit is connected with the elevator control unit, and the connection method is that 8 signal line connections are arranged to respectively transmit an upper leveling signal IPU, a lower leveling signal IPD, an upper gate area signal UDZ, a lower gate area signal DDZ, an upper speed changing signal 1LS, a lower speed changing signal 2LS, an upper limit signal SX and a lower limit signal XX; the 8 signals are sent to the elevator control unit.
Further, the self-learning storage method of the flat-layer pulse data comprises the following steps:
and stopping the elevator at each leveling position, confirming and recording the pulse data acquired by the current encoder unit through the main control unit until all floor leveling pulse data are confirmed and stored.
Further, when comparing the collected pulse number with the flat layer pulse data stored by self-learning, the main control unit sets a position reference signal to eliminate the accumulated error, and the specific elimination method is as follows: a position switch is arranged at the middle position of the shaft or other positions frequently passed by, and the position switch is stored corresponding to a reference position height value in the self-learning storage process; when the elevator passes through the position, the height value of the reference position is forcibly set, so that errors are eliminated, and error accumulation is prevented.
On the other hand, the invention also provides a novel elevator leveling device, which comprises an encoder unit and a main control unit with a storage function, wherein the encoder unit is arranged on a speed limiter of the lift car and used for acquiring the pulse number generated by the movement of the lift car through the speed limiter, the encoder unit is connected with the main control unit through a line and used for sending the pulse number to the main control unit, and the main control unit is connected with an elevator control unit through 8 signal lines and respectively transmits an upper leveling signal IPU, a lower leveling signal IPD, an upper door area signal UDZ, a lower door area signal DDZ, an upper speed changing signal 1LS, a lower speed changing signal 2LS, an upper limit signal SX and a lower limit signal XX; the main control unit compares the pulse number sent by the encoder unit with the pre-stored flat bed pulse data and sends the 8 signals to the elevator control unit according to the comparison result.
Furthermore, the overspeed governor of car is equipped with the rotation axis, the encoder unit is rotary encoder, installs on the rotation axis of overspeed governor.
Further, the main control unit is a PLC control unit.
Compared with the prior art, the invention has the following beneficial effects:
the invention is used as an elevator leveling device, provides necessary hardware support for accurate and reliable leveling action, and can avoid mounting bridge plates at each layer, a car leveling switch and the like in a hoistway of an elevator by using the method; the PLC control unit of the invention can freely set the leveling position of each floor for permanent storage, and can store the position during power failure when the elevator is restarted during power failure without going to an end station for resetting. The invention has high reliability, simple and convenient installation and free setting, and is suitable for the signal acquisition requirements of most elevators.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic flow chart of an embodiment of the present invention.
Wherein:
1. a speed limiter;
2. a rotary encoder;
3. a PLC control unit;
4. an elevator control unit;
5. a car.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
In the description of the present invention, when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present.
The invention is further described below with reference to the accompanying drawings.
The position signal of the elevator in use at present is basically acquired by the position of the elevator car through an optoelectronic switch or a magnetic inductor which is arranged on the elevator car and is matched with each layer of bridge plate arranged in a hoistway. Due to the abrasion of the guide shoes and the vibration of the car in the running process, the fit clearance in the actual running process of the elevator is difficult to adjust, the problem of inaccuracy occurs in signal acquisition, and the elevator faults are frequent.
The invention mainly relates to a leveling device which measures and calculates the position of an elevator car in real time by utilizing an encoder and gives a car well position signal through comparison.
As shown in fig. 1, the present invention is that a rotary encoder 2 is mounted on a speed governor 1, and a rotary encoder 2 is mounted on a motor of an elevator in the prior art, but in practical application, a slip error occurs between a traction sheave and a traction rope of the motor, so that the present invention adopts the speed governor 1 having a rotating shaft, the rotary encoder 2 is mounted on the rotating shaft of the speed governor 1, and a signal line of the rotary encoder 2 is connected to an input terminal of a PLC control unit 3.
The PLC control unit 3 is provided with a storage unit for storing the actual flat bed pulse number of each stopping layer of the elevator. The PLC control unit 3 is in signal connection with an elevator control unit 4 of the elevator, and the elevator control unit 4 is in connection control with an elevator car 5.
The connecting structure of the PLC control unit 3 in signal connection with the elevator control unit 4 of the elevator is provided with 8 signal line connections for respectively transmitting an upper leveling signal IPU, a lower leveling signal IPD, an upper door zone signal UDZ, a lower door zone signal DDZ, an upper speed changing signal 1LS, a lower speed changing signal 2LS, an upper limiting signal SX and a lower limiting signal XX; through said 8 signals the leveling information is transmitted to the elevator control unit 4.
As shown in figure 2, when the invention is used, the rotary encoder 2 collects the pulse number generated by the movement of the car 5 through the rotation of the rotating shaft of the speed limiter 1, calculates the real-time elevator height information through the pulse signal of the encoder, and compares the position value of each flat layer, the limit position value and the position value of the speed changing switch which are stored in the PLC through self-learning. And calculating the output areas of the corresponding upper flat layer signal IPU, the corresponding lower flat layer signal IPD, the corresponding upper gate area signal UDZ, the corresponding lower gate area signal DDZ, the corresponding upper slew rate signal 1LS, the corresponding lower slew rate signal 2LS, the corresponding upper limit signal SX and the corresponding lower limit signal XX. Taking a certain brand of elevator as an example, an upper floor signal IPU is output in an area of 150mm (203 pulses) minus 100mm (136 pulses) of each floor position value, a lower floor signal IPD is output in an area of 150mm (203 pulses) minus 100mm (136 pulses) of each floor position value, an upper gate signal UDZ is output in an area of 120mm (163 pulses) minus 80mm (109 pulses) of each floor position value, a lower gate signal DDZ is output in an area of 120mm (136 pulses) minus 80mm (109 pulses) of each floor position value, a lower speed signal 2LS is switched off when the height is less than 2500mm (3395 pulses), an upper speed signal 1LS is switched off when the height is 2500mm (3395 pulses) away from the top floor, an upper limit signal SX is switched off when the height exceeds 50mm (68 pulses) of the top floor position value, and lower limit signals XX. can meet various elevator requirements in real time according to actual conditions, the system completely replaces the traditional hoistway signal acquisition (upper and lower leveling signals, door zone signals, speed changing signals and limit signals) of the elevator.
The PLC control unit 3 outputs information of 8 signals to the elevator control unit 4 in real time, and the elevator control unit 4 controls the elevator car 5 to perform leveling action according to the signals.
The data source of the actual landing pulse number (namely the landing position value) of each landing layer of the elevator is self-learning of data after the elevator is provided with the device, the elevator is slowly stopped at each landing position, and the current pulse data is confirmed and recorded by the device until all the landing pulse data are confirmed and permanently stored.
In the actual operation process, the pulse number of the rotary encoder may generate an accumulated error, so a position reference signal can be set to eliminate the accumulated error, and the specific elimination method is as follows: a position switch is arranged at the middle position of the shaft or other positions frequently passed by, and the position switch is stored corresponding to a reference position height value in the self-learning storage process; when the elevator passes through the position, the height value of the reference position is forcibly set, so that errors are eliminated, and error accumulation is prevented.
The invention avoids installing bridge plates at each layer of a hoistway, a lift car leveling switch and the like, has high reliability, high precision and strong anti-interference capability, permanently stores data after one-time debugging is finished, does not change and is used for the whole life. The failure rate can be greatly reduced, and the operation efficiency of the elevator is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A novel elevator leveling method is characterized by comprising the following steps: acquiring the pulse number generated by the movement of the car through an encoder unit arranged on the speed limiter; comparing the collected pulse number with the flat layer pulse data stored through self-learning through the main control unit; the elevator control unit controls the elevator leveling according to the comparison result.
2. The novel elevator leveling method according to claim 1, wherein the installation method of the encoder unit is as follows: the encoder unit adopts rotary encoder, and the overspeed governor adopts the overspeed governor that is equipped with the rotation axis, and rotary encoder installs on the rotation axis of overspeed governor.
3. The novel elevator leveling method according to claim 1, wherein the connection method of the main control unit is as follows: the main control unit adopts a PLC control unit, and a signal wire of the encoder unit is connected with the input end of the PLC control unit; the output end line of the PLC control unit is connected with the elevator control unit, and the connection method is that 8 signal line connections are arranged to respectively transmit an upper leveling signal IPU, a lower leveling signal IPD, an upper gate area signal UDZ, a lower gate area signal DDZ, an upper speed changing signal 1LS, a lower speed changing signal 2LS, an upper limit signal SX and a lower limit signal XX; the 8 signals are sent to the elevator control unit.
4. The novel elevator leveling method according to claim 1, wherein the self-learning storage method of leveling pulse data comprises the following steps:
and stopping the elevator at each leveling position, confirming and recording the pulse data acquired by the current encoder unit through the main control unit until all floor leveling pulse data are confirmed and stored.
5. The novel elevator leveling method according to claim 1, wherein the master control unit sets a position reference signal to eliminate accumulated errors when comparing the collected pulse number with the leveling pulse data stored by self-learning, and the method specifically comprises the following steps: a position switch is arranged at the middle position of the shaft or other positions frequently passed by, and the position switch is stored corresponding to a reference position height value in the self-learning storage process; when the elevator passes through the position, the height value of the reference position is forcibly set, so that errors are eliminated, and error accumulation is prevented.
6. A novel elevator leveling device is characterized by comprising an encoder unit and a main control unit with a storage function, wherein the encoder unit is installed on a speed limiter of a car and used for collecting the pulse number generated by the movement of the car through the speed limiter, the encoder unit is connected with the main control unit through a line and used for sending the pulse number to the main control unit, the main control unit is connected with an elevator control unit through 8 signal lines, and an upper leveling signal IPU, a lower leveling signal IPD, an upper door area signal UDZ, a lower door area signal DDZ, an upper speed changing signal 1LS, a lower speed changing signal 2LS, an upper limiting signal SX and a lower limiting signal XX are respectively transmitted; the main control unit compares the pulse number sent by the encoder unit with the pre-stored flat bed pulse data and sends the 8 signals to the elevator control unit according to the comparison result.
7. The novel elevator leveling device as claimed in claim 6, wherein the speed limiter of the car is provided with a rotating shaft, and the encoder unit is a rotary encoder mounted on the rotating shaft of the speed limiter.
8. The novel elevator leveling device according to claim 6, wherein the main control unit is a PLC control unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863877.9A CN111847143A (en) | 2020-08-25 | 2020-08-25 | Novel elevator leveling method and leveling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010863877.9A CN111847143A (en) | 2020-08-25 | 2020-08-25 | Novel elevator leveling method and leveling device |
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| CN111847143A true CN111847143A (en) | 2020-10-30 |
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| CN202010863877.9A Pending CN111847143A (en) | 2020-08-25 | 2020-08-25 | Novel elevator leveling method and leveling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233272A (en) * | 2021-05-13 | 2021-08-10 | 上海江菱机电有限公司 | Method and system for determining elevator floor position coordinates and elevator car dynamic coordinates and storage medium |
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| CN2166110Y (en) * | 1992-05-27 | 1994-05-25 | 深圳科用开发有限公司 | Computerized layer-storing device |
| JPH0912245A (en) * | 1995-06-28 | 1997-01-14 | Hitachi Ltd | Elevator position detection device |
| CN205099117U (en) * | 2015-10-23 | 2016-03-23 | 西继迅达（许昌）电梯有限公司 | Novel elevator subtracts stroke control device |
| WO2016203650A1 (en) * | 2015-06-19 | 2016-12-22 | 三菱電機株式会社 | Elevator control apparatus and method for estimating expansion/contraction amount of governor rope |
| JP2018002432A (en) * | 2016-07-06 | 2018-01-11 | 株式会社日立製作所 | Elevator |
| CN212245782U (en) * | 2020-08-25 | 2020-12-29 | 陈军 | Novel elevator leveling device |
-
2020
- 2020-08-25 CN CN202010863877.9A patent/CN111847143A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2166110Y (en) * | 1992-05-27 | 1994-05-25 | 深圳科用开发有限公司 | Computerized layer-storing device |
| JPH0912245A (en) * | 1995-06-28 | 1997-01-14 | Hitachi Ltd | Elevator position detection device |
| WO2016203650A1 (en) * | 2015-06-19 | 2016-12-22 | 三菱電機株式会社 | Elevator control apparatus and method for estimating expansion/contraction amount of governor rope |
| CN205099117U (en) * | 2015-10-23 | 2016-03-23 | 西继迅达（许昌）电梯有限公司 | Novel elevator subtracts stroke control device |
| JP2018002432A (en) * | 2016-07-06 | 2018-01-11 | 株式会社日立製作所 | Elevator |
| CN212245782U (en) * | 2020-08-25 | 2020-12-29 | 陈军 | Novel elevator leveling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233272A (en) * | 2021-05-13 | 2021-08-10 | 上海江菱机电有限公司 | Method and system for determining elevator floor position coordinates and elevator car dynamic coordinates and storage medium |
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