CN104386547B - Elevator limit method - Google Patents
Elevator limit method Download PDFInfo
- Publication number
- CN104386547B CN104386547B CN201410466721.1A CN201410466721A CN104386547B CN 104386547 B CN104386547 B CN 104386547B CN 201410466721 A CN201410466721 A CN 201410466721A CN 104386547 B CN104386547 B CN 104386547B
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- Prior art keywords
- switch
- elevator
- throw
- effective
- over
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a kind of elevator limit method, comprise the following steps: detection forces throw-over switch the most effective;If testing result is yes, detection leveling switch is the most effective;On off state according to described leveling switch sends spacing instruction.Compared with prior art, elevator limit method of the present invention, first detection forces throw-over switch the most effective, if effectively, detection leveling switch is the most effective the most further, and the on off state finally according to leveling switch sends spacing instruction, the i.e. signal condition by forcing throw-over switch and leveling switch sends spacing instruction, achieve a kind of soft spacing, without installing mechanical switch, optoelectronic switch or magnetic switch, reduce the cost of elevator;Meanwhile, realizing the soft spacing of elevator by the signal condition forcing throw-over switch and leveling switch, stability and reliability are higher.
Description
Technical field
The present invention relates to a kind of limit method, more particularly relate to a kind of elevator limit method.
Background technology
One row is respectively installed in the top of elevator hoistways and bottom and controls switch, be used for slowing down and controlling
Elevator processed stops.The direction run by elevator is installed successively and is forced throw-over switch and upper (lower) limit switch,
And force throw-over switch to have one-level force throw-over switch or multistage force throw-over to switch according to actual conditions.
Above-mentioned limit switch is as a part for elevator protection device, and its conventional mode is to cross end station (bag
Include upstation and lower end station) the 50mm position of level position, install limit switch and lower position switch,
To squat at the end after preventing the car of elevator from rushing to summit after crossing upstation or crossing lower end station.Limit switch is typically selected
Mechanical switch, optoelectronic switch or magnetic switch etc..But, use mechanical switch, optoelectronic switch or magnetic switch,
Add the cost of elevator;Meanwhile, easily there was a mechanical failure for above-mentioned switch, the stability of limit function and
Reliability is poor.
Therefore, the elevator limit method being badly in need of a kind of low cost, stability and reliability higher is above-mentioned to overcome
Defect.
Summary of the invention
It is an object of the invention to provide a kind of elevator limit method, to reduce elevator cost, to increase spacing merit
The stability of energy and reliability.
For achieving the above object, the invention provides a kind of elevator limit method, comprise the following steps:
Detection forces throw-over switch the most effective;
If testing result is yes, detection leveling switch is the most effective;
On off state according to described leveling switch sends spacing instruction.
Compared with prior art, elevator limit method of the present invention, first detection force throw-over switch the most effective,
If effectively, detection leveling switch is the most effective the most further, and the on off state finally according to leveling switch sends
Spacing instruction, the i.e. signal condition by forcing throw-over switch and leveling switch send spacing instruction, real
Show a kind of soft spacing, without installing mechanical switch, optoelectronic switch or magnetic switch, reduced elevator
Cost;Meanwhile, realize the soft spacing of elevator by the signal condition forcing throw-over switch and leveling switch,
Stability and reliability are higher.
Force described in it is preferred that throw-over switch include forcing throw-over switch and under force throw-over to switch, described
Elevator runs and forces throw-over switch effectively on described during topmost floor level position, and described elevator ran the end of to
During floor layer level position described under force throw-over switch effectively.
It is preferred that described leveling switch includes leveling switch and lower leveling switch, described elevator runs to respectively
During floor level position, described upper leveling switch and described lower leveling switch are effective.
It is preferred that described " if testing result is yes, detection leveling switch is the most effective " including:
If forcing throw-over switch on described effectively, whether detect described upper leveling switch and described lower leveling switch
Effectively;
If forcing throw-over switch under described effectively, whether detect described upper leveling switch and described lower leveling switch
Effectively.
It is preferred that described " sending spacing instruction according to the on off state of described leveling switch " particularly as follows:
If lower leveling switch effective, described is effective and described upper leveling switch is invalid to force throw-over to switch on described,
Send upper limit instruction;
If upper leveling switch effective, described is effective and described lower leveling switch is invalid to force throw-over to switch under described,
Send lower limit instruction.
By description below and combine accompanying drawing, the present invention will become more fully apparent, and these accompanying drawings are used for explaining
Embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the flow chart of elevator limit method one embodiment of the present invention.
Fig. 2 is elevator flow chart of elevator limit method one embodiment of the present invention when running up.
Fig. 3 is elevator flow chart of elevator limit method one embodiment of the present invention when running downwards.
Detailed description of the invention
With reference now to accompanying drawing, describing embodiments of the invention, element numbers similar in accompanying drawing represents similar unit
Part.
Refer to Fig. 1, for the flow chart of elevator limit method one embodiment of the present invention.As it is shown in figure 1, elevator
Limit method comprises the following steps:
Step S101, detection forces throw-over switch the most effective, if testing result is yes, performs step S102,
Continue executing with step S101 if not;
Step S102, detection leveling switch is the most effective;Throw-over switch is wherein forced to include forcing throw-over to open
Close and under force throw-over switch, when elevator runs to topmost floor level position, above force throw-over switch must
Fixed effectively, when elevator runs to bottom floor level position, under force the throw-over switch must be effective, flat bed
Switch includes leveling switch and lower leveling switch, and upper leveling switch is used for providing flat bed signal, lower flat bed
Switch be used for providing lower flat bed signal, when elevator runs to the level position of each floor, upper leveling switch and under
Leveling switch is all effective, i.e. goes up flat bed signal and lower flat bed signal is all effective;
Step S103, sends spacing instruction according to the on off state of leveling switch.
Concrete, when elevator runs to topmost floor level position, above forcing throw-over to switch must be effective,
And lower flat bed signal is effective, upper flat bed signal is effective, and runs when elevator continues up end station at level position
Time, upper leveling switch departs from the magnetic isolation plate installed on car guide rail, lower leveling switch without departing from magnetic isolation plate, this
Forcing throw-over to switch flat bed invalidating signal effective, upper time on, lower flat bed signal is effective, according to these three signal
State i.e. can determine whether that elevator now runs to top layer and continues up operation, need to carry out upper limit protection;
In like manner, when elevator is when running to bottom floor level position, under force throw-over switch must be effective, and under
Flat bed signal is effective, and upper flat bed signal is effective, and when elevator continues the operation of downward end station at level position,
Lower leveling switch departs from the magnetic isolation plate installed on car guide rail, and upper leveling switch is without departing from magnetic isolation plate, and this is at present
Forcing throw-over to switch flat bed signal effective, upper effective, lower flat bed invalidating signal, according to the shape of these three switch
State i.e. can determine whether that elevator now runs to bottom and continues to run downwards, needs to carry out lower limit protection;I.e. root
Limit can be judged whether to according to the on off state forcing throw-over switch, upper leveling switch and lower leveling switch
Position protection.
Compared with prior art, elevator limit method of the present invention is according to forcing throw-over switch and leveling switch
On off state judges whether to send spacing instruction, opens without installing mechanical switch, optoelectronic switch or magnetic
Close, reduce the cost of elevator;Meanwhile, by forcing the signal logic of throw-over switch and leveling switch
Realizing the soft spacing of elevator, stability and reliability are higher.
Explanation elevator realizes spacing flow chart when running up and run downwards separately below.
Refer to Fig. 2, when elevator runs up, elevator limit method of the present invention comprises the following steps:
Step S201, detection elevator upstation forces throw-over switch the most effective, if effectively, performs step
Rapid S202, otherwise, repeat step S201;Wherein elevator includes upstation and lower end station, upstation and lower end
The place of station be respectively arranged with force throw-over switch and under force throw-over to switch, be used for controlling elevator forced deceleration with
Prevent elevator from rushing to summit or squat at the end, it is ensured that the safe operation of elevator;
Step S202, in detection, leveling switch and lower leveling switch are the most effective;
Step S203, if upper leveling switch is invalid and lower leveling switch is effective, sends upper limit and instructs to elevator
Control system.
In like manner, when elevator runs downwards, elevator limit method of the present invention comprises the following steps:
Step S301, forces throw-over switch the most effective, if effectively, performs step under end station under detection elevator
Rapid S302, otherwise, repeat step S301;
Step S302, in detection, leveling switch and lower leveling switch are the most effective;
Step S303, if upper leveling switch is effective and lower leveling switch is invalid, sends lower limit and instructs to elevator
Control system.
From the above, it can be seen that force throw-over switch effective, upper flat when apparatus for controlling elevator detects
When layer switch is invalid and lower leveling switch is effective, controls elevator and carry out upper limit protection, work as apparatus for controlling elevator
Detect down that to force throw-over to switch leveling switch effective, upper effective and time lower leveling switch is invalid, control elevator
Carry out lower limit protection, i.e. patrol according to the signal forcing throw-over switch, upper leveling switch and lower leveling switch
Collect and can realize position limitation protection, without installing mechanical switch, optoelectronic switch or magnetic switch, reduce electricity
The cost of ladder;Meanwhile, by forcing the signal logic of throw-over switch and leveling switch to realize the soft of elevator
Spacing, stability and reliability are higher.
Above in association with most preferred embodiment, invention has been described, but the invention is not limited in disclosed above
Embodiment, and amendment, the equivalent combinations that the various essence according to the present invention is carried out should be contained.
Claims (5)
1. an elevator limit method, it is characterised in that comprise the following steps:
Detection forces throw-over switch the most effective;
If testing result is yes, detection leveling switch is the most effective;
On off state according to described leveling switch sends spacing instruction.
2. elevator limit method as claimed in claim 1, it is characterised in that described in force throw-over switch to include
On force throw-over switch and under force throw-over switch, the operation of described elevator is to described in during topmost floor level position
On force throw-over switch effectively, described elevator runs and forces throw-over to open under described during bottom floor level position
Close effectively.
3. elevator limit method as claimed in claim 2, it is characterised in that described leveling switch includes flat
Layer switch and lower leveling switch, described elevator runs to upper leveling switch described during each floor level position and institute
State lower leveling switch effective.
4. elevator limit method as claimed in claim 3, it is characterised in that described " if testing result is yes,
Detection leveling switch is the most effective " including:
If forcing throw-over switch on described effectively, whether detect described upper leveling switch and described lower leveling switch
Effectively;
If forcing throw-over switch under described effectively, whether detect described upper leveling switch and described lower leveling switch
Effectively.
5. elevator limit method as claimed in claim 4, it is characterised in that described " open according to described flat bed
The on off state closed sends spacing instruction " particularly as follows:
If lower leveling switch effective, described is effective and described upper leveling switch is invalid to force throw-over to switch on described,
Send upper limit instruction;
If upper leveling switch effective, described is effective and described lower leveling switch is invalid to force throw-over to switch under described,
Send lower limit instruction.
Priority Applications (1)
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CN201410466721.1A CN104386547B (en) | 2014-09-12 | 2014-09-12 | Elevator limit method |
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CN201410466721.1A CN104386547B (en) | 2014-09-12 | 2014-09-12 | Elevator limit method |
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CN104386547A CN104386547A (en) | 2015-03-04 |
CN104386547B true CN104386547B (en) | 2016-08-24 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105270962B (en) * | 2015-11-19 | 2018-01-23 | 东南电梯股份有限公司 | The dual-purpose explosion-proof incline elevator of people's goods |
CN114906690B (en) * | 2022-05-24 | 2024-05-31 | 无锡英威腾电梯控制技术有限公司 | Elevator limiting method and device, electronic equipment and readable storage medium |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102849548A (en) * | 2012-06-20 | 2013-01-02 | 天津大学 | Elevator speed controller for rated-speed-exceeding running and control method of controller |
CN203593484U (en) * | 2013-07-30 | 2014-05-14 | 浙江建设职业技术学院 | Sectional-type lift shaft signal collector |
Family Cites Families (2)
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JP2004284763A (en) * | 2003-03-24 | 2004-10-14 | Toshiba Elevator Co Ltd | Elevator |
JP2008007322A (en) * | 2006-06-30 | 2008-01-17 | Toshiba Elevator Co Ltd | Last floor deceleration control system of elevator |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102849548A (en) * | 2012-06-20 | 2013-01-02 | 天津大学 | Elevator speed controller for rated-speed-exceeding running and control method of controller |
CN203593484U (en) * | 2013-07-30 | 2014-05-14 | 浙江建设职业技术学院 | Sectional-type lift shaft signal collector |
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