CN101190764A - Elevator overspeed testing apparatus - Google Patents
Elevator overspeed testing apparatus Download PDFInfo
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- CN101190764A CN101190764A CNA2006101184934A CN200610118493A CN101190764A CN 101190764 A CN101190764 A CN 101190764A CN A2006101184934 A CNA2006101184934 A CN A2006101184934A CN 200610118493 A CN200610118493 A CN 200610118493A CN 101190764 A CN101190764 A CN 101190764A
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- elevator
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- testing apparatus
- lift car
- processing module
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- 230000005693 optoelectronics Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000644 propagated effect Effects 0.000 claims description 2
- 230000035807 sensation Effects 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Abstract
The invention discloses an elevator overspeed detecting device and comprises a position detecting device, clapboards and an elevator safety control device; wherein, the position detecting device which is arranged on the top part of an elevator cage consists of a plurality of sensors; the clapboards are arranged at an elevator terminal landing in a well; the sensors and the clapboards are interacted to produce the instantaneous absolute speed of the elevator cage at a corresponding absolute position point in the well; the elevator safety control device judges whether the elevator cage has normal speed or not, and if the speed of the elevator cage at a corresponding absolute position point in the well exceeds a permissible value, the dead-stop of the elevator cage is conducted by controlling an elevator control system; two clapboards and two sensors are respectively and mutually interacted at any time. The invention can accurately detect whether the elevator has an overspeed and has multistage redundant protection, thus ensuring the safety of personnel and equipments. Furthermore, the invention is simple in structure.
Description
Technical field
The present invention relates to a kind of elevator overspeed testing apparatus.
Background technology
Along with the continuous development of elevator technology, the running velocity of elevator is also more and more higher.The safety guard-safeguard if the elevator of high-speed cruising under situation out of control, fails to perform well will produce personal casualty.When particularly the speed of elevator under surpassing the certain situation of its design-calculated is moved, more be easy to generate accident; So it is cooresponding important that the overspeed testing apparatus of elevator seems.When elevator overspeed testing apparatus correctly detects elevator overspeed, can control elevator and enter the safety guard-safeguard mode operation, to guarantee passenger's life security.Also have, the energy disperser of elevator (comprising car buffer and counterweight buffer) is the indispensable safety block of lift facility, and generally elevator speed is high more, and its energy disperser is also high more, and the elevator pit of requirement is also dark more.But, when if elevator overspeed testing apparatus reasonable in design, the effect of this device can make the speed of elevator under surpassing the certain situation of its design-calculated move, force to reduce the running velocity of elevator, the designing requirement of energy disperser can be reduced like this, pit depth can be reduced simultaneously.Prior art is as described in the Chinese invention patent specification sheets CN1040863C (November 25 1998 day for announcing), and its light barrier detector and measure the band cooperating can detect the overspeed condition of elevator.But it measures the band structure complexity, and this device also has following technological deficiency: 1, fault redundance is not enough, because the work of a light barrier instrument can only be arranged simultaneously, if a certain light barrier instrument et out of order can not carry out redundancy detection; 2, can't detect and judge the up-downgoing of elevator; and elevator speed whether exceed the speed limit up-downgoing running state with elevator be closely related (start upwards operation and elevator moves from hoistway top to bottom at bottom as elevator; its speed through light barrier detector is different, the most important thing is that its limited speed that starts safety guard-safeguard also is different).
Summary of the invention
The technical problem to be solved in the present invention provides a kind of elevator overspeed testing apparatus, and whether it can correctly detect elevator and exceed the speed limit, and has the multilevel redundancy protection, ensures the safety of the person and equipment, and simple in structure.
For solving the problems of the technologies described above, elevator overspeed testing apparatus of the present invention comprises a position detecting device that is installed in elevator car roof, is installed in the dividing plate at elevator terminal stop place in the hoistway, the elevator safety control setup; Described position detecting device is made up of a plurality of sensors; Described sensor and dividing plate mutual action, produce the instantaneous absolute velocitye of lift car at the corresponding absolute location point of hoistway, the elevator safety control setup judges whether the speed of described lift car is normal, surpass permissible value if confirm lift car in the speed of the corresponding absolute location point of hoistway, then control elevator and suddenly stop; At sensor and interactional arbitrary moment of dividing plate two dividing plates and two sensor difference while mutual actions are arranged all.
Owing to adopt elevator overspeed testing apparatus of the present invention; two dividing plates and two sensor difference while mutual actions are all arranged at any one time; produce the instantaneous absolute velocitye of lift car at the corresponding absolute location point of hoistway; therefore has the multilevel redundancy protection; even operative sensor breaks down, also can implement correct protection.
In addition, position detecting device of the present invention is made up of a plurality of sensors; Position detecting device is directly installed on car top, and dividing plate is installed on the hold-down arm of terminal stop, and structure is simple relatively.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is the topological diagram of an embodiment of elevator overspeed testing apparatus of the present invention;
Fig. 2 is the scheme of installation of opto-electronic pickup and dividing plate in one embodiment of the invention;
Fig. 3 is the scheme of installation of 6 opto-electronic pickups in one embodiment of the invention;
Fig. 4 is the schematic diagram of the elevator safety control setup among the present invention.
The specific embodiment
As shown in Figure 1, elevator overspeed testing apparatus of the present invention comprises lift car 1, by a plurality of sensors (position detecting device of S1 as shown in FIG.～S6) form.Described sensor is arranged, can be worked alone simultaneously according to certain logical place by spatially staggering mutually.Described position detecting device is installed in lift car 1 top.Described sensor is opto-electronic pickup or magnetosensitive propagated sensation sensor.The quantity of sensor is more than or equal to 4.Each constitutes (referring to Fig. 3) by an illuminator and a light receiving device described opto-electronic pickup S1～S6.
Be arranged with a plurality of hold-down arms 9～14 on the cage guide 8 in hoistway from top to bottom in parallel, each guide rail hold-down arm is provided with two dividing plates 15～26.Dividing plate 15～26 has certain length, and spatially arranges (corresponding with sensor) according to certain logical place relation.
Referring to shown in Figure 4, also comprise elevator safety control setup 27, elevator safety control setup 27 comprises a logic processing module 29, safety relay 28 at least.Described sensor S1～S6 is electrically connected with logic processing module 29.When described sensor S1～S6 does the time spent (interaction relationship of sensor and dividing plate can referring to Fig. 2) with dividing plate 15～26 is corresponding mutually respectively, with the detection signal input logic processing module 29 of sensor S1～S6, and by the instantaneous absolute velocitye of logic processing module 29 calculating lift cars 1 at the corresponding absolute location point of hoistway.If this speed surpasses permissible value, then logic processing module 29 output signals disconnect safety relay 28, the normally closed contact 30 of this safety relay 28 disconnects, make that elevator is anxious and stop that (normally closed contact 30 is by apparatus for controlling elevator 31 by apparatus for controlling elevator 31, constitute the band-type brake power control loop of elevator traction machine, when normally closed contact 30 disconnects, the band-type brake power supply dead electricity of elevator traction machine, after making that elevator traction machine is embraced by band brake apparatus, the control elevator is out of service).Two dividing plates and two sensor difference while mutual actions are all arranged at any one time.
Referring to Fig. 1, when lift car 1 from hoistway top terminal stop when operation down, at hoistway position L6+L place, two dividing plates 16,15 that sensor S4 and sensor S6 are mounted respectively on the arm 9 insert respectively, sensor S4 and S6 export high level " 1 " signal simultaneously and give logic processing module 29, and logic processing module 29 will write down the logical time point T1 of this moment.After having arrived logical time point T2, sensor S4 and S6 will deviate from dividing plate 16,15 simultaneously, this moment sensor S4 and S6 output low level " 0 " signal simultaneously, and logic processing module 29 will write down logical time point T2 at this moment.The momentary velocity that logic processing module 29 can calculate lift car 1 is V=L/ (T2-T1), and wherein L represents the length of dividing plate.
Following table is the dividing plate of a terminating layer place diverse location and respective sensor action logic relation (it is symmetrical fully with following terminating layer to go up terminating layer) under the elevator among the present invention.
As can be seen, lift car 1 is when the terminal stop, and all there are two dividing plates and two sensor mutual actions in interactional arbitrary moment of sensor and dividing plate, to produce the instantaneous absolute velocitye of lift car at the corresponding absolute location point of hoistway simultaneously.Even a certain like this sensor breaks down, the another one sensor can also shield, as: even sensor S4 breaks down, sensor S6 can also shield.Also have as mentioned above, even break down at L6+L place sensor, the protection in time of failing during elevator overspeed can also shield during to the L5+L place, and the like, until the combined protection of the sensor S3 of L1 place, S5.As seen, emergency protection of the present invention has enough redundancies.
Simultaneously, as above shown in the table, according to sensor S4, S6, sensor S2, S6, sensor S3, S4, sensor S2, S5, sensor S4, S5 and sensor S3, S5 export to the logical order of logic processing module 29, can judge that lift car 1 is up or descending.As: sensor S4, S6 be output " 1 " earlier, sensor S2, S6 output " 1 " then, then lift car 1 is descending; If sensor S2, S6 be output " 1 " earlier, sensor S4, S6 output " 1 " then, then lift car 1 is up.And the like.Why to judge the up-downgoing of lift car 1, because locate in the fixed position point (as L5+L) at elevator terminal stop place, the standard speed (V of lift car 1 when descending
SX2) standard speed (V of (when elevator starts) when up
SS2) be different.This point is most important for the correctness of the overspeed protection of elevator.
As seen the present invention has solved fully and has judged whether lift car 1 exceeds the speed limit in the speed of the corresponding absolute location point of hoistway, thus the problem that correct enforcement is protected when judging elevator overspeed.And the multilevel redundancy protection is arranged, even operative sensor breaks down, also can implement correct protection.Can also judge simultaneously the up-downgoing of elevator,, implement the protection of different benchmark according to different up-downgoing running statees.
Claims (6)
1. an elevator overspeed testing apparatus comprises a position detecting device that is installed in elevator car roof, is installed in the dividing plate at elevator terminal stop place in the hoistway, the elevator safety control setup; It is characterized in that: described position detecting device is made up of a plurality of sensors; Described sensor and dividing plate mutual action, produce the instantaneous absolute velocitye of lift car at the corresponding absolute location point of hoistway, the elevator safety control setup judges whether the speed of described lift car is normal, surpass permissible value if confirm lift car in the speed of the corresponding absolute location point of hoistway, then by anxious the stopping of apparatus for controlling elevator control lift car; All there are two dividing plates and two sensor difference while mutual actions in interactional arbitrary moment of described sensor and dividing plate.
2. elevator overspeed testing apparatus as claimed in claim 1, it is characterized in that: the elevator safety control setup is according to different elevator terminal stop place's dividing plates and sensor mutual action, produce the order of high and low level " 1 " or " 0 ", judge that lift car is up or descending.
3. elevator overspeed testing apparatus as claimed in claim 1 is characterized in that: described sensor is opto-electronic pickup or magnetosensitive propagated sensation sensor.
4. elevator overspeed testing apparatus as claimed in claim 1 or 2 is characterized in that: described sensor is more than or equal to 4.
5. elevator overspeed testing apparatus as claimed in claim 1 or 2, it is characterized in that: described elevator safety control setup comprises a logic processing module at least, described sensor is electrically connected with this logic processing module, when described sensor and dividing plate mutual action, detection signal input logic processing module with sensor, and by the instantaneous absolute velocitye of logic processing module calculating lift car at the corresponding absolute location point of hoistway, if this speed surpasses permissible value, then the logic processing module output signal disconnects safety relay, by apparatus for controlling elevator elevator is suddenly stopped.
6. elevator overspeed testing apparatus as claimed in claim 1 or 2 is characterized in that: the terminal stop place in hoistway is arranged with a plurality of hold-down arms in parallel, and each hold-down arm is provided with two dividing plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610118493.4A CN101190764B (en) | 2006-11-20 | 2006-11-20 | Elevator overspeed testing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610118493.4A CN101190764B (en) | 2006-11-20 | 2006-11-20 | Elevator overspeed testing apparatus |
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| Publication Number | Publication Date |
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| CN101190764A true CN101190764A (en) | 2008-06-04 |
| CN101190764B CN101190764B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200610118493.4A Active CN101190764B (en) | 2006-11-20 | 2006-11-20 | Elevator overspeed testing apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429697A (en) * | 2016-09-13 | 2017-02-22 | 江苏旭云物联信息科技有限公司 | Elevator safety pre-warning system |
| CN111563229A (en) * | 2020-05-13 | 2020-08-21 | 浙江大学 | Vertical ladder overspeed automatic reset fault diagnosis method based on Gaussian mixture model |
| CN115461296A (en) * | 2020-04-27 | 2022-12-09 | 三菱电机株式会社 | A processing device for three-dimensional data of an elevator |
| CN115535761A (en) * | 2021-04-29 | 2022-12-30 | 湖南大举信息科技有限公司 | Rail-cutting two-pass detection safety control method of intelligent multi-car elevator system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2161291C (en) * | 1994-11-18 | 2006-01-10 | Christian Arpagaus | Excess speed detector with multiple light barrier |
| US6253879B1 (en) * | 1998-12-22 | 2001-07-03 | Otis Elevator Company | Apparatus and method of determining overspeed of an elevator car |
| CN1206151C (en) * | 2000-10-31 | 2005-06-15 | 三菱电机株式会社 | Elevator speed regulator |
| SG120250A1 (en) * | 2004-08-12 | 2006-03-28 | Inventio Ag | Elevator installation with a car and a device for determining a car position and method for operating such an elevator installation |
-
2006
- 2006-11-20 CN CN200610118493.4A patent/CN101190764B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429697A (en) * | 2016-09-13 | 2017-02-22 | 江苏旭云物联信息科技有限公司 | Elevator safety pre-warning system |
| CN115461296A (en) * | 2020-04-27 | 2022-12-09 | 三菱电机株式会社 | A processing device for three-dimensional data of an elevator |
| CN111563229A (en) * | 2020-05-13 | 2020-08-21 | 浙江大学 | Vertical ladder overspeed automatic reset fault diagnosis method based on Gaussian mixture model |
| CN111563229B (en) * | 2020-05-13 | 2022-03-22 | 浙江大学 | Fault Diagnosis Method for Overspeed Automatic Reset of Straight Elevator Based on Gaussian Mixture Model |
| CN115535761A (en) * | 2021-04-29 | 2022-12-30 | 湖南大举信息科技有限公司 | Rail-cutting two-pass detection safety control method of intelligent multi-car elevator system |
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| Publication number | Publication date |
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| CN101190764B (en) | 2014-07-16 |
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