CN204144905U - Limit switch bypass in shuttle device - Google Patents
Limit switch bypass in shuttle device Download PDFInfo
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- CN204144905U CN204144905U CN201420507164.9U CN201420507164U CN204144905U CN 204144905 U CN204144905 U CN 204144905U CN 201420507164 U CN201420507164 U CN 201420507164U CN 204144905 U CN204144905 U CN 204144905U
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- relay
- shuttle device
- limit switch
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- contactor
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- 230000001960 triggered effect Effects 0.000 claims abstract description 30
- 239000000853 adhesive Substances 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 230000005611 electricity Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000004821 Contact adhesive Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model proposes the limit switch bypass in a kind of shuttle device, comprise input module, the output module of 2 the mechanical type limit switches being arranged on shuttle device normal travel border, trapped orbit two ends, 1 two knob, 2 relays, 1 contactor and PLC.Run at shuttle device and exceed normal travel, proterctive equipment that can be safer during Crush trigger formula limit switch and attendant, to reset the scheme of fault faster.It increases limit switch bypass functionality on existing processing scheme basis, not only can when arbitrary mechanical type limit switch be triggered, stroke fault warning in logical program, and in hardware-in-the-loop, thoroughly can disconnect the electric power loop of shuttle device drive motors, and quicker, the safe reset fault of limit switch bypass functionality can be passed through, make shuttle device re-start normal operation.
Description
Technical field
The utility model relates to the limit control of shuttle device in a kind of equipment of industrial product, belongs to conveyer control technology field.
Background technology
Shuttle device belongs to more common equipment in the industrial production, such as: the round operation of jacking equipment, the round operation of mobile device.Shuttle device widely using in the equipment of industrial product, enormously simplify preconsolidation stress scheme, makes the route planning more freely variation of production technology, saves space, improve space availability ratio.This type of round equipment run is all carry out coming and going on fixing track running, but when shuttle device operation exceeds fixing track, can cause serious infringement, greatly delay the production time to equipment, the production interests of infringement company.
In the past, be in operation exceed fixing track for avoiding shuttle device, comparatively effective common practices arranges the dead gear of machinery, stops that shuttle device exceeds trapped orbit from mechanical aspects.But this kind of mode is the two ends extreme position avoiding shuttle device to move to track, and the mechanical contact that shuttle device and machinery can be caused extremely to keep off collides, mechanical damage can be caused to shuttle device and the dead gear of machinery simultaneously.
In electric, conventional solution is before trapped orbit two ends, shuttle device reach capacity position, respectively arranges a mechanical type limit switch at trapped orbit two ends.When arbitrary mechanical type limit switch is triggered, namely think that shuttle device reaches capacity position, equipment is in malfunction.When mechanical type limit switch is triggered, generally there are two kinds of ways, 1: only in logical program, form alarm in electrical hardware loop and logical program, the automatic running status of arrestment.2: in logical program, form alarm, the automatic running status of arrestment, meanwhile, disconnects the control power supply of the drive motors of shuttle device when mechanical type limit switch is triggered.First kind of way is the automatic running status only breaking equipment at electric logic program circuit, can not disconnect the control power supply of the drive motors of shuttle device, there is suitable Risks.The second way not only breaks the automatic running status of equipment at electric logic program circuit, and the control power supply of drive motors of shuttle device is disconnected when mechanical type limit switch is triggered, but, for the normal operation recovering shuttle device departs from regard to needing additional power to order about shuttle device the mechanical type limit switch triggered, during practical operation, there is certain loaded down with trivial details and difficulty.
To sum up, all there is certain drawback in the mode that existing machinery and electric solution avoid shuttle device operation to exceed trapped orbit.For improving the security reliability of production equipment, maintaining the high running rate of production equipment, a kind of more reliable mode must be had to solve shuttle device and to run the problem exceeding trapped orbit.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, the bypass of limit switch in a kind of shuttle device is provided, the limit switch bypass of shuttle device is set in electrical hardware loop, make at shuttle device when triggering arbitrary mechanical type limit switch, both the automatic running status of equipment can have been broken at electric logic program circuit, the control power supply of the drive motors of shuttle device can be disconnected again, and when recovering the normal operation of shuttle device, not needing additional power to order about shuttle device and departing from the mechanical type limit switch triggered.
According to the technical scheme that the utility model provides, the limit switch bypass in described shuttle device comprises: the input module, the output module that are arranged on 2 mechanical type limit switches on shuttle device normal travel border, trapped orbit two ends, 1 two knob, 2 relays, 1 contactor and PLC; In 2 relays, the normally-closed contact of the coil of the second relay and 2 mechanical type limit switches is contacted, the second relay contact and the coils connected in series of contactor, the contact series of contactor is in the electric power loop of shuttle device drive motors; The control end of the first relay connects the output point of output module, the contact of the first relay and the first relay contact shunt; Two grades of two knobs are linked into two input points of input module respectively, for controlling enabling and disconnecting of limit switch bypass; The adhesive when enabling limit switch bypass functionality of first relay, the adhesive when 2 mechanical type limit switches are not all triggered of second relay, contactor the first relay and the second relay simultaneously or arbitrary adhesive time adhesive, input module gathers the signal of two knob place gears and 2 mechanical type limit switches; When shuttle device runs the stroke exceeding either end on trapped orbit, corresponding mechanical type limit switch will be triggered, and the second relay normally-closed contact disconnects, thus control the break-make of shuttle device drive motors electric power loop by contactor; First relay is controlled by the output point of output module, when output point is "ON", and the second relay adhesive thus realize the break-make controlling shuttle device drive motors electric power loop when first relay disconnects.
Concrete, described mechanical type limit switch adopts travel switch.
The normally opened contact of described 2 mechanical type limit switches accesses to the input point of input module respectively, when arbitrary mechanical type limit switch is triggered, logical program detects that input point is lit, and forms fault warning, disconnect the automatic service conditions of logical program, shuttle device stops automatically running.
The utility model has the advantages that: the utility model more can guarantee the fail safe of the equipment when shuttle device operation exceeds normal travel, not only in logical program, form fault warning, and the electric power loop of shuttle device drive motors is broken at hardware-in-the-loop, guarantee the security reliability of shuttle device when exception, when enabling limit switch bypass functionality, the electric power loop connecting shuttle device drive motors can be realized by bypass functionality, thus realize manual operation shuttle device and return in normal travel, avoid some the loaded down with trivial details and difficulty in additionaling power and practical operation, improve device security, shorten fault handling time.
Accompanying drawing explanation
Fig. 1 is the hardware-in-the-loop schematic diagram of relay 2.
Fig. 2 is the hardware-in-the-loop schematic diagram of contactor 1.
Fig. 3 is two knobs and mechanical type limit switch input point circuit diagram.
Fig. 4 is relay 2 output point circuit diagram.
Fig. 5 is that shuttle device carries out coming and going Crush trigger formula limit switch schematic diagram when running.
Embodiment
The utility model proposes a kind of shuttle device to run and exceed normal travel, proterctive equipment that can be safer during Crush trigger formula limit switch and attendant, to reset the scheme of fault faster.Existing processing scheme basis increases limit switch bypass functionality, not only can when arbitrary mechanical type limit switch be triggered, stroke fault warning in logical program, and in hardware-in-the-loop, thoroughly can disconnect the electric power loop of shuttle device drive motors, and quicker, the safe reset fault of limit switch bypass functionality can be passed through, make shuttle device re-start normal operation.
Below contrast accompanying drawing and set forth the installation mode of connection in electrical hardware loop and the mounting means of two mechanical type limit switches, as shown in figures 1-4, the utility model comprises input module, the output module of 2 the mechanical type limit switches (the present embodiment use travel switch) being arranged on shuttle device normal travel border, trapped orbit two ends, 1 two knob, 2 relays, 1 contactor and PLC.In 2 relays, the normally-closed contact of the coil of the second relay and 2 mechanical type limit switches is contacted, the second relay contact and the coils connected in series of contactor, the contact series of contactor is in the electric power loop of shuttle device drive motors; The control end of the first relay connects the output point of output module, the contact of the first relay and the first relay contact shunt; Two grades of two knobs are linked into two input points of input module respectively, for controlling enabling and disconnecting of limit switch bypass.
Whether 2 mechanical type limit switch detection shuttle device exceed normally is run stroke, two knobs realize whether enabling limit switch bypass functionality, the adhesive when enabling limit switch bypass functionality of first relay, the adhesive when 2 mechanical type limit switches are not all triggered of second relay, contactor the first relay and the second relay simultaneously or arbitrary adhesive time adhesive, input module gathers the signal of two knob place gears and 2 mechanical type limit switches; Adopt adhesive and the disconnection of a trigger module control relay 1.
When shuttle device runs the stroke exceeding either end on trapped orbit, corresponding mechanical type limit switch will be triggered, and the second relay normally-closed contact disconnects, thus control the break-make of shuttle device drive motors electric power loop by contactor; First relay is controlled by the output point of output module, when output point is that ON(opens) time, the second relay adhesive thus realize the break-make controlling shuttle device drive motors electric power loop when first relay disconnects.
As shown in Figure 5, described 2 mechanical type limit switches are separately positioned in the safe distance outside the normal travel on shuttle device trapped orbit two ends, act as detection shuttle device and whether exceed normal travel when carrying out round operation, when shuttle device runs the stroke exceeding either end on trapped orbit, corresponding mechanical type limit switch will be triggered; In 2 relays, the second relay controls break-make by the normally-closed contact series winding of 2 mechanical type limit switches, when arbitrary mechanical type limit switch is triggered, its normally-closed contact disconnects, contactor coil loop disconnects, and contactor can not adhesive thus control the break-make of shuttle device drive motors electric power loop.In 2 relays, the first relay is controlled by the output point of output module, as logical program execution result output point ON, and the first relay adhesive thus realize the break-make controlling shuttle device drive motors electric power loop when the second relay disconnects; Shuttle device drive motors electric power loop break-make is controlled by the break-make of contactor.
Control program of the present utility model adopts the normally opened contact of 2 mechanical type limit switches to access to the input point of input module respectively, when arbitrary mechanical type limit switch is triggered, logical program detects that input point is lit, form fault warning, disconnect the automatic service conditions of logical program, equipment stops automatically running.
Control program of the present utility model adopts the break-make of the normally-closed contact series winding control relay of 2 mechanical type limit switches, and then the break-make of the contactor of control shuttle device drive motors electric power loop, realize when shuttle device operation exceeds normal travel, Crush trigger formula limit switch, disconnect drive motors electric power loop, guarantee the safety of equipment.
Control program of the present utility model adopts the selection of two knobs realize enabling of limit switch bypass or disconnect, when shuttle device normally runs, disconnect limit switch bypass, effectively can not disconnect when avoiding shuttle device to trigger arbitrary mechanical type limit switch and come and go setting drive motors electric power loop.When shuttle device operation exception, when exceeding normal travel, trigger the disconnection that arbitrary mechanical type limit switch realizes shuttle device drive motors electric power loop, now, enable limit switch bypass functionality, shuttle device drive motors electric power loop is connected by bypass functionality, manual operation shuttle device moves in normal travel, when avoiding Crush trigger formula limit switch, shuttle device drive motors electric power loop disconnects, for making it restore to power additional in normal travel, the loaded down with trivial details and difficulty existed when avoiding practical operation.
As shown in Figure 1, the normally closed triggering of 2 mechanical type limit switches is contacted, one end after series winding connects power supply+24V, (both positive and negative polarity is divided at the coil two ends as relay 2 in one end of other end connection relay 2 coil, please be connected on corresponding positive terminal), the other end of relay 2 coil connects the coil two ends of power supply 0V(as relay 2 and divides both positive and negative polarity, please be connected on corresponding negative terminal).
As shown in Figure 2, one group of normally opened contact one end of relay 2 connects one end of power supply 220V, and the same group of normally opened contact other end of relay 2 connects one end of contactor 1 coil, and the other end of contactor 1 coil connects the other end of power supply 220V.The two ends of one group of normally opened contact of relay 1 are connected to the two ends of that group normally opened contact that above-mentioned relay 2 uses.
The effect in this electrical hardware loop is that above-mentioned relay 2 coil electricity, its normally-closed contact adhesive, contactor 1 coil electricity, its normally opened contact adhesive, shuttle device drive motors obtains electric when mechanical type limit switch 1,2 is not triggered simultaneously.Otherwise, when the arbitrary switch of mechanical type limit switch 1,2 is triggered, shuttle device drive motors dead electricity.When the arbitrary switch of mechanical type limit switch 1,2 is triggered and causes shuttle device drive motors dead electricity, make relay 1 coil electricity, during adhesive normally opened contact, shuttle device drive motors can be made to obtain equally electric, guarantee that shuttle device drive motors can run in manual operation.
As shown in Figure 3, two normally opened contacts of two knobs are connected on two input point Input 01, the Input 02 of input module, when two knobs are threaded to corresponding input point Input 01, represent and enable limit switch bypass, when two knobs are threaded to corresponding input point Input 02, represent and disconnect limit switch bypass.The normally opened contact of mechanical type limit switch 1,2 is connected on two input point Input 03, the Input 04 of input module, when arbitrary input signal is triggered, represent that shuttle device runs and exceed normal travel, logical program forms fault warning, disconnects shuttle device automatic running program.
As shown in Figure 4, on the output point Output 1 that the two ends of the coil of relay 1 are connected to output module and power supply 0V, (both positive and negative polarity is divided at the coil two ends as relay 1, by figure described in the utility model, please the positive terminal of coil is connected with the output point Output 01 of output module, the negative terminal of coil is connected with power supply 0V), when the output point Output 1 of output module puts ON, during the coil electricity adhesive of relay 1, represent and enable limit switch bypass, otherwise represent the bypass of disconnection limit switch.
Comprehensively above-mentioned, when shuttle device comes and goes and runs in the normal travel of its trapped orbit, equipment is normal.Mechanical type limit switch 1,2 is not triggered, and two input point Input 03, the Input 04 of the input module of its correspondence are not all triggered, the wire loop energising of relay 2; Two knobs are threaded to corresponding input point Input 02, disconnect limit switch bypass; Be connected to the relay 1 of the output point Output 1 of output module, according to the gear that two knobs are threaded to, by logical program execution result, the non-adhesive of relay 1; The coil two ends of contactor 1 form loop energising by the adhesive of the normally opened contact of relay 2, contactor 1 adhesive, and normally opened contact is connected, and shuttle device drive motors obtains electric operation.
When shuttle device runs and exceeds normal travel on its trapped orbit.The mechanical type limit switch of its corresponding trapped orbit end is triggered, input point Input 03 or the Input 04 of the input module of its correspondence are triggered, logical program forms fault warning, disconnect shuttle device automatic running program, the wire loop of relay 2 disconnects, the normally opened contact of above-mentioned relay 2 disconnects, and the wire loop of contactor 1 disconnects, and shuttle device drive motors dead electricity is out of service; Now two knobs are threaded to corresponding input point Input 01, enable limit switch bypass; Be connected to the relay 1 of the output point Output 1 of output module, according to the gear that two knobs are threaded to, by logical program execution result, relay 1 adhesive; The coil two ends of contactor 1 form loop energising by the adhesive of the normally opened contact of relay 1, contactor 1 adhesive, and normally opened contact is connected, and shuttle device drive motors obtains electric, can manual operation move in normal travel.Depart from the mechanical type limit switch triggered, the normally-closed contact adhesive of above-mentioned mechanical type limit switch, the wire loop energising of relay 2, the normally opened contact adhesive of described relay 2, the wire loop of contactor 1 forms power circuit by the normally opened contact of relay 2.Then, two knobs are threaded to corresponding input point Input 02, disconnect limit switch bypass, relay 1 disconnects adhesive.Reset fault warning, restarts the automatic running program of shuttle device, and equipment recovers normal and runs.
The utility model runs at shuttle device and exceeds normal travel, the basis that can produce fault warning during Crush trigger formula limit switch adds the power supply that hardware-in-the-loop disconnects shuttle device drive motors, and add limit switch bypass functionality, when mechanical type limit switch being triggered by this function and causing the power-off of shuttle device drive motors, by bypass functionality to the energising of shuttle device drive motors, manual operation shuttle device moves in normal travel.Improve fail safe when shuttle device occurs that abnormal device security when exceeding stroke and attendant safeguard, substantially reduce the time needed for failure reset, improve the operation ratio of equipment.
Because the utility model employs limit switch bypass functionality, it compares with traditional control method, has following advantage.
1. the normally-closed contact series winding of mechanical type limit switch: the normally-closed contact series winding of 2 mechanical type limit switches, effectively can disconnect shuttle device motor power loop when arbitrary mechanical type limit switch is triggered.
2. the bypass functionality of limit switch: when arbitrary mechanical type limit switch is triggered and disconnects shuttle device drive motors electric power loop, enabling this function avoids as making it restore to power additional in normal travel, the loaded down with trivial details and difficulty existed when eliminating traditional approach practical operation.
3. fail safe is higher: scheme of the present utility model not only forms fault warning in logical program, and breaks shuttle device drive circuit at hardware-in-the-loop.Improve fail safe when shuttle device occurs that abnormal device security when exceeding stroke and attendant safeguard.
Recovery fault is more convenient: when the bypass functionality of limit switch can disconnect in mechanical type limit switch loop, and connect shuttle device drive motors electric power loop, real manual operation shuttle device returns in normal travel, and does not need additionaling power.Substantially reduce the time needed for failure reset, improve the operation ratio of equipment.
Claims (2)
1. the limit switch bypass in shuttle device, is characterized in that: the input module, the output module that comprise 2 the mechanical type limit switches being arranged on shuttle device normal travel border, trapped orbit two ends, 1 two knob, 2 relays, 1 contactor and PLC; In 2 relays, the normally-closed contact of the coil of the second relay and 2 mechanical type limit switches is contacted, the second relay contact and the coils connected in series of contactor, the contact series of contactor is in the electric power loop of shuttle device drive motors; The control end of the first relay connects the output point of output module, the contact of the first relay and the first relay contact shunt; Two grades of two knobs are linked into two input points of input module respectively, for controlling enabling and disconnecting of limit switch bypass; The adhesive when enabling limit switch bypass functionality of first relay, the adhesive when 2 mechanical type limit switches are not all triggered of second relay, contactor the first relay and the second relay simultaneously or arbitrary adhesive time adhesive, input module gathers the signal of two knob place gears and 2 mechanical type limit switches; When shuttle device runs the stroke exceeding either end on trapped orbit, corresponding mechanical type limit switch will be triggered, and the second relay normally-closed contact disconnects, thus control the break-make of shuttle device drive motors electric power loop by contactor; First relay is controlled by the output point of output module, when output point is "ON", and the second relay adhesive thus realize the break-make controlling shuttle device drive motors electric power loop when first relay disconnects.
2. the limit switch bypass as claimed in claim 1 in shuttle device, is characterized in that: described mechanical type limit switch is travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507164.9U CN204144905U (en) | 2014-09-03 | 2014-09-03 | Limit switch bypass in shuttle device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507164.9U CN204144905U (en) | 2014-09-03 | 2014-09-03 | Limit switch bypass in shuttle device |
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| CN204144905U true CN204144905U (en) | 2015-02-04 |
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| CN201420507164.9U Expired - Fee Related CN204144905U (en) | 2014-09-03 | 2014-09-03 | Limit switch bypass in shuttle device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242235A (en) * | 2014-09-03 | 2014-12-24 | 天奇自动化工程股份有限公司 | Limit switch bypass in roundtripping equipment |
| CN106799889A (en) * | 2015-11-25 | 2017-06-06 | 衡阳唯美印务有限公司 | A kind of automatic ink jet printer |
-
2014
- 2014-09-03 CN CN201420507164.9U patent/CN204144905U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242235A (en) * | 2014-09-03 | 2014-12-24 | 天奇自动化工程股份有限公司 | Limit switch bypass in roundtripping equipment |
| CN106799889A (en) * | 2015-11-25 | 2017-06-06 | 衡阳唯美印务有限公司 | A kind of automatic ink jet printer |
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Granted publication date: 20150204 |