CN109343465A - A kind of the encoder switching device and its switching method of the double tank elevators of auxiliary shaft - Google Patents
A kind of the encoder switching device and its switching method of the double tank elevators of auxiliary shaft Download PDFInfo
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- CN109343465A CN109343465A CN201811509607.7A CN201811509607A CN109343465A CN 109343465 A CN109343465 A CN 109343465A CN 201811509607 A CN201811509607 A CN 201811509607A CN 109343465 A CN109343465 A CN 109343465A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 73
- 238000004891 communication Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/052—Linking several PLC's
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses the encoder switching devices and its switching method of a kind of double tank elevators of auxiliary shaft, master control encoder and main control PLC communication connection, monitor encoder and monitoring PLC communication connection, the left end of the spare terminal of the pulse signal lead and communication cabinet of master control encoder connects, the right end for monitoring the pulse signal lead of encoder and the spare terminal of communication cabinet connects, switch is connected between the left end and right end of spare terminal, when needing to switch over, stop master control encoder and monitor the power switch of encoder, closes the switch of spare terminal；Determine which breaks down for master control encoder and monitoring encoder, closes the power switch of not out of order encoder, into primary control program, modifies a circle coded number of the encoder of failure；The advantages of present invention has safety failure low, guarantees pit shaft personnel safety.
Description
Technical field
The present invention relates to electricity field, it is more particularly to a kind of encoder switching device of double tank elevators of auxiliary shaft and its cuts
Change method.
Background technique
Encoder plays very important effect in lifting system, and the data of encoder are in PLC controller as speed
Degree control and stroke control use, once master control monitoring encoder or monitoring encoder break down, elevator will appear super
Fast failure or progressive error failure, elevator can not drive, and cause pit shaft to hang people for a long time, easily cause safety accident.
Summary of the invention
Technical problem to be solved by the present invention lies in the double tank elevators of the auxiliary shaft of the prior art to monitor encoder in master control
Or monitoring encoder break down when, elevator can not drive, cause pit shaft for a long time hang people the problem of.
The present invention is to solve above-mentioned technical problem by the following technical programs: a kind of encoder of the double tank elevators of auxiliary shaft
Switching device, including master control encoder, monitoring encoder and communication cabinet, the master control encoder are mounted on the double tank elevators of auxiliary shaft
Concentric shafts drawing of main shaft on, the monitoring encoder is mounted on the gear centre on the end cap of the double tank elevators of auxiliary shaft
On axis, engaged gears on gear and main shaft on end cap, the master control encoder and main control PLC communication connection, the monitoring
Encoder and monitoring PLC communication connection, the spare terminal of the pulse signal lead and communication cabinet of the master control encoder
The pulse signal lead of left end connection, the monitoring encoder is connect with the right end of the spare terminal of the communication cabinet, described standby
With being connected with switch between the left end of terminal and right end.
Preferably, the gear diameter ratio on the gear and main shaft on the end cap is 1:1.4.
Preferably, the pulse signal lead of the master control encoder includes A+, A-, B+ and B-, the monitoring encoder
Pulse signal lead includes A+, A-, B+ and B-, and there are four connecting terminal, the masters for the left end of the spare terminal and right end
Controlling the PLC and monitoring PLC includes output unit, the output unit of the main control PLC including four output pin A2+,
The output unit of A2-, B2+ and B2-, the monitoring PLC include four output pins A2+, A2-, B2+ and B2-.
Preferably, the master control encoder pulse signal lead A+, A-, B+ and B- respectively from top to bottom successively with it is spare
Four connecting terminals of terminal left end connect, pulse signal lead A+, A-, B+ and B- of the monitoring encoder respectively on to
Under successively connect with four connecting terminals of spare terminal right end, four output pin A2 of the output unit of the main control PLC
+, A2-, B2+, B2- respectively with pulse signal lead A+, A-, B+, B- communication connection of the master control encoder, the monitoring
Four output pins A2+, A2-, B2+, B2- of the output unit of PLC respectively with it is described monitoring encoder pulse signal lead A
+, A-, B+ and B- communication connection.
A kind of switching method of the encoder switching device of the double tank elevators of auxiliary shaft, comprising the following steps:
Step 1: original state, spare terminal are in an off state；
Step 2: when needing to switch over, stop the power switch of master control encoder and the power supply of monitoring encoder first
Switch, then closes the switch of spare terminal；
Step 3: determining which breaks down for master control encoder and monitoring encoder, if master control encoder breaks down,
The power switch of monitoring encoder is closed, if monitoring encoder breaks down, closes the power switch of master control encoder；
Step 4: entering primary control program, if what is closed is the power switch for monitoring encoder, master control encoder one is enclosed and is compiled
Yardage is changed to monitoring encoder one and encloses coded number * 1.4；If what is closed is the power switch of master control encoder, encoder will be monitored
One circle coded number is changed to master control encoder one and encloses coded number/1.4；
Step 5: carrying out reset driving, promotes speed control within 1m/s；
Step 6: after cage hoisting to well head, replacement processing is carried out to trouble coder.
Preferably, in the step 4, if the monitoring encoder one circle coded number and the master control encoder one circle are compiled
Yardage is identical, then the coded number that the coded number and master control encoder one for monitoring the circle of encoder one enclose is not modified.
The present invention have the advantage that compared with prior art when master control encoder or monitoring encoder go wrong, cause
Elevator is unable to run, and can be taken main control PLC and be monitored PLC while using the signal of some encoder, to guarantee to mention
It rises function emergency to be promoted, pit shaft is avoided to hang people for a long time.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in invention description will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the invention, common for this field
For technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of circuit structure of the encoder switching device of the double tank elevators of auxiliary shaft disclosed in the embodiment of the present invention
Figure.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
As shown in Figure 1, a kind of encoder switching device of the double tank elevators of auxiliary shaft, including master control encoder 1, monitoring coding
Device 2, the spare terminal 3 of communication cabinet, main control PLC and monitoring PLC.
The master control encoder 1 is mounted on one of the main shaft (not shown) extraction of the double tank elevator (not shown) of auxiliary shaft together
In mandrel (not shown), the monitoring encoder 2 is mounted on the gear in the end cap (not shown) of the double tank elevators of auxiliary shaft, and (figure is not
Show) on central axis, the engaged gears on gear and main shaft on end cap, the master control encoder 1 and main control PLC communication connection,
The monitoring encoder 2 and monitoring PLC communication connection, pulse signal lead and the communication cabinet of the master control encoder 1
The left end of spare terminal 3 connects, the right side of the spare terminal 3 of the pulse signal lead and communication cabinet of the monitoring encoder 2
End connection, is connected with switch 301 between the left end and right end of the spare terminal 3.
Specifically, the gear diameter ratio on gear and main shaft on the end cap is 1:1.4.
Specifically, the pulse signal lead of the master control encoder 1 includes A+, A-, B+ and B-, the monitoring encoder 2
Pulse signal lead include A+, A-, B+ and B-, there are four connecting terminals for the left end of the spare terminal 3 and right end, described
Main control PLC and the monitoring PLC include output unit, the output unit of the main control PLC include four output pin A2+,
The output unit of A2-, B2+ and B2-, the monitoring PLC include four output pins A2+, A2-, B2+ and B2-.The master control is compiled
Pulse signal lead A+, A-, B+ and B- of code device 1 distinguish from top to bottom successively four connecting terminals with 3 left end of spare terminal
Connection, it is described monitoring encoder 2 pulse signal lead A+, A-, B+ and B- respectively from top to bottom successively with 3 right end of spare terminal
Four connecting terminals connection, four output pins A2+, A2-, B2+, B2- of the output unit of the main control PLC respectively with institute
Pulse signal lead A+, A-, B+, B- communication connection of master control encoder 1 is stated, four of the output unit of the monitoring PLC are defeated
Out pin A2+, A2-, B2+, B2- respectively with it is described monitoring encoder 2 pulse signal lead A+, A-, B+ and B- communication connection.
A kind of switching method of the encoder switching device of the double tank elevators of auxiliary shaft, comprising the following steps:
Step 1: original state, spare terminal 3 are in an off state；
Step 2: when needing to switch over, stop the power switch (not shown) and monitoring coding of master control encoder 1 first
Then the power switch (not shown) of device 2 closes the switch 301 of spare terminal 3；
Step 3: determine which breaks down for master control encoder 1 and monitoring encoder 2, if event occurs in master control encoder 1
Barrier closes the power switch of monitoring encoder 2, if monitoring encoder 2 breaks down, closes the power switch of master control encoder 1；
Step 4: entering primary control program, if what is closed is the power switch for monitoring encoder 2, master control encoder 1 one is enclosed
Coded number is changed to monitoring encoder 2 one and encloses coded number * 1.4；If what is closed is the power switch of master control encoder 1, monitoring is compiled
Code device 2 one encloses coded number and is changed to the circle of master control encoder 1 one coded number/1.4；If the monitoring encoder 2 one encloses coded number and institute
It states master control encoder 1 one and encloses the volume that coded number is identical, then the coded number and master control encoder 1 one for monitoring the circle of encoder 2 one enclose
Yardage is not modified.
Step 5: carrying out reset driving, promotes speed control within 1m/s；
Step 6: after cage hoisting to well head, replacement processing is carried out to trouble coder.
The operation principle of the present invention is that: when the motor operation of the double tank elevators of auxiliary shaft, master control encoder 1, monitoring coding
The axis of device 2 follows main shaft while rotating, and the positive and negative rotaring signal of the motor of the double tank elevators of auxiliary shaft and pulse signal are passed respectively
To main control PLC and monitoring PLC.PLC software can calculate the speed of service and stroke of motor according to pulse signal in program, warp
After crossing data communication, the data of master control encoder 1, monitoring encoder 2 are compared in program.Once master control encoder 1
Data and the data differences of monitoring encoder 2 be more than specified value, the double tank elevators of auxiliary shaft will be reported to form poor failure and speed
Compare failure, and the double tank elevators of auxiliary shaft is caused to be unable to run, once master control encoder 1 or monitoring encoder 2 go wrong, leads
It causes the double tank elevators of auxiliary shaft to be unable to run, closes the switch 301 of spare terminal 3, take main control PLC and monitoring PLC while using
The signal of some encoder avoids pit shaft from hanging people for a long time to guarantee that the double tanks of auxiliary shaft promote function emergency and promoted.
By above technical scheme, a kind of encoder switching device of the double tank elevators of auxiliary shaft provided by the present invention and its
The advantages of switching method has safety failure low, guarantees pit shaft personnel safety.When master control encoder or monitoring encoder are asked
Topic, causes elevator to be unable to run, and can take main control PLC and monitor PLC while using the signal of some encoder, thus
Guarantee that promoting function emergency is promoted, and avoids pit shaft from hanging people for a long time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of encoder switching device of the double tank elevators of auxiliary shaft, which is characterized in that including master control encoder, monitoring encoder
And communication cabinet, the master control encoder are mounted in a concentric shafts of the main shaft extraction of the double tank elevators of auxiliary shaft, the monitoring
Encoder is mounted on the central gear axis on the end cap of the double tank elevators of auxiliary shaft, and the gear on gear and main shaft on end cap is stung
It closes, the master control encoder and main control PLC communication connection, the monitoring encoder and monitoring PLC communication connection, the master control are compiled
The pulse signal lead of code device is connect with the left end of the spare terminal of the communication cabinet, and the pulse signal of the monitoring encoder draws
Line is connect with the right end of the spare terminal of the communication cabinet, is connected with switch between the left end and right end of the spare terminal.
2. a kind of encoder switching device of the double tank elevators of auxiliary shaft according to claim 1, which is characterized in that the end
Gear diameter ratio on the gear and main shaft covered is 1:1.4.
3. a kind of encoder switching device of the double tank elevators of auxiliary shaft according to claim 1, which is characterized in that the master
The pulse signal lead of control encoder includes A+, A-, B+ and B-, the pulse signal lead of the monitoring encoder include A+, A-,
There are four connecting terminals for B+ and B-, the left end of the spare terminal and right end, and the main control PLC and the monitoring PLC are wrapped
Include output unit, the output unit of the main control PLC includes four output pin A2+, A2-, B2+ and B2-, the monitoring PLC
Output unit include four output pins A2+, A2-, B2+ and B2-.
4. a kind of encoder switching device of the double tank elevators of auxiliary shaft according to claim 3, which is characterized in that the master
Pulse signal lead A+, A-, B+ and the B- for controlling encoder distinguish from top to bottom successively four terminals with spare terminal left end
Son connection, it is described monitoring encoder pulse signal lead A+, A-, B+ and B- respectively from top to bottom successively with spare terminal right end
Four connecting terminals connection, four output pins A2+, A2-, B2+, B2- of the output unit of the main control PLC respectively with institute
State pulse signal lead A+, A-, B+, B- communication connection of master control encoder, four outputs of the output unit of the monitoring PLC
Pin A2+, A2-, B2+, B2- respectively with it is described monitoring encoder pulse signal lead A+, A-, B+ and B- communication connection.
5. a kind of switching method of the encoder switching device of the double tank elevators of auxiliary shaft according to any one of claims 1-4,
Characterized by comprising the following steps:
Step 1: original state, spare terminal are in an off state；
Step 2: when needing to switch over, stopping the power switch of master control encoder and the power switch of monitoring encoder first,
Then the switch of spare terminal is closed；
Step 3: determine which breaks down for master control encoder and monitoring encoder, if master control encoder breaks down, closes
The power switch of encoder is monitored, if monitoring encoder breaks down, closes the power switch of master control encoder；
Step 4: entering primary control program, if what is closed is the power switch for monitoring encoder, master control encoder one is enclosed coded number
It is changed to monitoring encoder one and encloses coded number * 1.4；If what is closed is the power switch of master control encoder, monitoring encoder one is enclosed
Coded number is changed to master control encoder one and encloses coded number/1.4；
Step 5: carrying out reset driving, promotes speed control within 1m/s；
Step 6: after cage hoisting to well head, replacement processing is carried out to trouble coder.
6. a kind of switching method of the encoder switching device of the double tank elevators of auxiliary shaft according to claim 5, feature
It is, in the step 4, if the monitoring encoder one circle coded number and the master control encoder one circle coded number are identical,
The coded number that the coded number and master control encoder one that monitoring encoder one encloses enclose is not modified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509607.7A CN109343465B (en) | 2018-12-11 | 2018-12-11 | Encoder switching device and method of auxiliary shaft double-tank elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509607.7A CN109343465B (en) | 2018-12-11 | 2018-12-11 | Encoder switching device and method of auxiliary shaft double-tank elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109343465A true CN109343465A (en) | 2019-02-15 |
| CN109343465B CN109343465B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811509607.7A Active CN109343465B (en) | 2018-12-11 | 2018-12-11 | Encoder switching device and method of auxiliary shaft double-tank elevator |
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| WO2013140515A1 (en) * | 2012-03-19 | 2013-09-26 | 富士通株式会社 | Coding system and encoder repositioning method |
| CN203272277U (en) * | 2013-06-07 | 2013-11-06 | 北京首钢自动化信息技术有限公司 | Hydraulic motor speed feedback remote switching device based on speed encoder |
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| CN204707063U (en) * | 2015-05-29 | 2015-10-14 | 深圳市华科科技有限公司 | The application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor |
| CN106238255A (en) * | 2016-09-18 | 2016-12-21 | 上海发那科机器人有限公司 | A kind of spray robot Dual-encoder redundant system |
| CN106525086A (en) * | 2016-11-08 | 2017-03-22 | 莱芜钢铁集团电子有限公司 | Installation system and method for rotary encoder redundancy detection |
| CN208969494U (en) * | 2018-12-11 | 2019-06-11 | 淮南矿业(集团)有限责任公司 | A kind of encoder switching device of the double tank elevators of auxiliary shaft |
-
2018
- 2018-12-11 CN CN201811509607.7A patent/CN109343465B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013140515A1 (en) * | 2012-03-19 | 2013-09-26 | 富士通株式会社 | Coding system and encoder repositioning method |
| CN202757630U (en) * | 2012-08-30 | 2013-02-27 | 首钢京唐钢铁联合有限责任公司 | Switchable circuit and encoder redundancy switching device |
| CN203272277U (en) * | 2013-06-07 | 2013-11-06 | 北京首钢自动化信息技术有限公司 | Hydraulic motor speed feedback remote switching device based on speed encoder |
| CN104952348A (en) * | 2015-04-20 | 2015-09-30 | 淮北朔里矿业有限责任公司 | Coal mine hoist simulation training device |
| CN204707063U (en) * | 2015-05-29 | 2015-10-14 | 深圳市华科科技有限公司 | The application of frequency converter equipment of mine hoist is driven for permagnetic synchronous motor |
| CN106238255A (en) * | 2016-09-18 | 2016-12-21 | 上海发那科机器人有限公司 | A kind of spray robot Dual-encoder redundant system |
| CN106525086A (en) * | 2016-11-08 | 2017-03-22 | 莱芜钢铁集团电子有限公司 | Installation system and method for rotary encoder redundancy detection |
| CN208969494U (en) * | 2018-12-11 | 2019-06-11 | 淮南矿业(集团)有限责任公司 | A kind of encoder switching device of the double tank elevators of auxiliary shaft |
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| CN109343465B (en) | 2024-04-30 |
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