CN105610348A - Conveyor belt control device - Google Patents
Conveyor belt control device Download PDFInfo
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- CN105610348A CN105610348A CN201410603478.3A CN201410603478A CN105610348A CN 105610348 A CN105610348 A CN 105610348A CN 201410603478 A CN201410603478 A CN 201410603478A CN 105610348 A CN105610348 A CN 105610348A
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- China
- Prior art keywords
- conveying belt
- control device
- contactor
- conveyor belt
- belt control
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Abstract
The invention relates to a conveyor belt control device comprising a circuit breaker and a contactor which are sequentially connected between a three-phase power supply and a conveyor belt motor. The circuit breaker can switch on or off the three-phase power supply. The contactor can make the conveyor belt motor rotate forwardly or reversely. A reduced-voltage starter capable of regulating the voltage in a stepless manner is connected between the contactor and the conveyor belt motor. According to the conveyor belt control device, the no-load and on-load starting currents are reduced, the impact on other equipment in a power grid is reduced, a conveyor belt is stable and small in impact when being started or stopped, and a dragging system shaft does not bear very large shear force. Through the optimization of the performances, the service life of the conveyor belt system is prolonged.
Description
Technical field
The present invention relates to electrical control field, relate in particular to a kind of conveying belt control device.
Background technology
In the time excavating construction, the motion arm of excavating equipment can be by excavation of earthwork to feeding deviceFront end, then drive conveying belt to be transported to rear end by motor, finally pass through material guide deviceThe earthwork is transported on travelling bogie. In feeding device, motor through reductor slow down after with defeatedMaterial belt connects, and drives the running of conveying belt.
The motor of controlling at present conveying belt mainly adopts the mode of direct startup, as shown in Figure 1Electrical schematic diagram and Fig. 2 shown in control procedure block diagram, breaker 1a control and three phase mainsBe switched on or switched off, contactor 2a controls the rotating of motor 3a, then directly and motor 3aThree be connected, this control mode starting current is large, has dry to other consumer in electrical networkDisturb, this causes conveying belt to start and impacts while stopping greatly, makes conveying belt dragging systemAxle is subject to very large shearing force, affects its service life.
Summary of the invention
The object of the invention is to propose a kind of conveying belt control device, can reduce start time pairThe impact of conveying belt and dragging system axle.
For achieving the above object, the invention provides a kind of conveying belt control device, comprising:The breaker and the contactor that between three phase mains and conveying belt motor, connect in turn, described disconnectedRoad device can switch on or off described three phase mains, and described contactor can be to described conveying beltMotor carries out rotating control, between described contactor and described conveying belt motor, is connected with energyThe reduced voltage starter of enough stepless voltage regulations.
Further, described reduced voltage starter is soft initiator, and described soft initiator adopts three-phaseAntiparallel IGCT is as pressure regulation device, and each mutually antiparallel described IGCT is also in parallelThere is bypass contactor.
Further, described reduced voltage starter is frequency converter.
Further, also comprise the monitoring element being connected with described soft initiator, can supervise in real timeThe band of control conveying belt carries situation.
Further, also comprise the speed detection module being connected with described conveying belt, Neng GoujianSurvey the speed of service of described conveying belt.
Further, described speed detection module comprises: coaxial with the rotating shaft of described conveying beltFixing magnetic plate and the velocity pick-up of just the speed surveyed area on described magnetic plate being installedDevice.
Further, also comprise the warning being connected with described monitoring element and described velocity sensorDevice, can be to the velocity anomaly of the overload operating mode of described conveying belt motor and described conveying beltReport to the police.
Further, also comprise relay and normally-closed contact, described relay can detectDescribed conveying belt speed obtains electric when abnormal, open described normally-closed contact, thereby connects described in cutting offThe power supply of tentaculum.
Further, described soft initiator is electronic type soft initiator or electromagnetic type soft startDevice.
Based on technique scheme, the conveying belt control device of the embodiment of the present invention, byBetween contactor and conveying belt motor, arranging can stepless voltage regulation reduced voltage starter, can reduceUnloaded and band carries starting current, thereby has reduced the impact to miscellaneous equipment in electrical network, makes defeatedExpect that belt is comparatively steady in the time starting and stop, it is little to impact, dragging system axle also can not bear veryLarge shearing force, the optimization of these performances can extend the service life of conveying belt system.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the applicationA part, schematic description and description of the present invention is used for explaining the present invention, not structureBecome inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the electrical schematic diagram of the conveying belt control device of prior art;
Fig. 2 is the control procedure block diagram of the conveying belt control device of prior art;
Fig. 3 is the electrical schematic diagram of an embodiment of conveying belt control device of the present invention;
Fig. 4 is the control procedure block diagram of an embodiment of conveying belt control device of the present invention;
Fig. 5 is the velocity sensor peace of another embodiment of conveying belt control device of the present inventionDress figure;
Fig. 6 is the control procedure frame of another embodiment of conveying belt control device of the present inventionFigure.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is done further and retouched in detailState.
In prior art, motor drives general the employing directly of conveying belt movement to start, by breaker1a control is switched on or switched off with three phase mains, and contactor 2a controls the rotating of motor 3a,Then be directly connected with three of motor 3a, this control mode is unloaded carries a starting current with bandGreatly, other consumer in electrical network is had to interference, and cause belt to start and impact while stoppingGreatly. Thereby need in control system, add reduced-voltage starting equipment, thus starting current reduced,To be described in detail below.
A kind of conveying belt control device provided by the invention, as shown in Figure 3, comprising: threeThe breaker 1 connecting in turn between phase power supply and conveying belt motor 3 (hereinafter to be referred as motor)With contactor 2, breaker 1 can switch on or off three phase mains, and contactor 2 can be to electricityMachine 3 carries out rotating control, and is connected with energy between contactor 2 and conveying belt motor 3The reduced voltage starter of enough stepless voltage regulations.
The conveying belt control device of the embodiment of the present invention, by contactor 2 and motor 3 itBetween reduced voltage starter is set, the functional relation that makes the input voltage of motor 3 start from scratch to presetRise gradually, finish until start, give motor 3 full voltages, the mistake starting in this wayCheng Zhong, the detent torque of motor 3 increases gradually, and rotating speed also increases gradually. With prior artDirectly Starting mode is compared, and zero load and band that Starting mode of the present invention can reduce motor 3 carryStarting current, thus the impact to other consumer in electrical network reduced, make conveying beltStart and while stopping relatively steadily, impact littlely, the optimization of these performances can extend conveying skinWith the service life of dragging system.
In one embodiment of the invention, the electricity of conveying belt control device as shown in Figure 3Gas schematic diagram, reduced voltage starter is soft initiator 4, soft initiator 4 adopts three-phase antiparallelIGCT 5 is as pressure regulation device, and each mutually antiparallel IGCT 5 is also parallel with bypass and connectsTentaculum 6. Soft initiator 4 is a kind of reduced voltage starters that can realize stepless voltage regulation, current collection machineSoft start, soft stop, light-load energy saving and multi-protective function are in the electric machinery control device of one.
The control procedure block diagram of conveying belt control device as shown in Figure 4, its course of work asUnder: breaker 1 is connected three phase mains, Guarantee control system energising; Press start button, connectTentaculum 2 is connected, and soft initiator 4 works on power, and motor 3 starts running, drives conveying beltStart working. While using soft initiator 4 starter motor 3, the output voltage of IGCT 5 graduallyIncrease, motor accelerates gradually, until the full conducting of IGCT, motor 3 is operated in rated voltageMechanical property on, realize smoothly start, reduce starting current, avoid starting overcurrent tripping.In the time that motor 3 reaches rated speed, start-up course finishes, and soft initiator 4 connects from employing bypassTentaculum 6 replaces the IGCT 5 of having finished the work, and provides rated voltage for motor 3 runs well,To reduce the thermal losses of IGCT 5, extend the service life of soft initiator 4, improve its workEfficiency, makes again electrical network avoid harmonic pollution. Meanwhile, soft initiator 4 also provides soft stop meritCan, soft stop is contrary with soft start-up process, and voltage reduces gradually, and rotating speed drops to zero gradually,The torque shock ends of avoiding free parking to cause. In addition, can be by increasing the setting of overload currentWith inverse time lag control model, realize the overload protection function to motor 3, while making motor overload,Cutoff thyristor 5. Thereby soft initiator 4 can reduce direct startup to whole control systemImpact, the service life of having improved conveying belt dragging system.
Further, engineering staff can according to control principle select electronic type soft initiator orElectromagnetic type soft initiator. In addition, contactor 2 can be selected vacuum contactor, semiconductor contactDevice and permanent magnet contactor.
In another embodiment of the present invention, reduced voltage starter is frequency converter, and frequency converter is logicalCross the electric control appliance that changes machine operation supply frequency mode and control ac motor. ItRely on voltage and the frequency of cut-offfing to adjust out-put supply of built-in electrical insulation grid bipolar transistor,Provide its needed supply voltage according to the actual needs of motor, and then reach energy-conservation, tuneThe object of speed, in addition, frequency converter also has a lot of defencive functions, as overcurrent, overvoltage, overloadProtection etc., but cost is relatively high, so be mainly used in some to the requirement of equipment runnabilityHigher occasion.
The band of grasping at any time conveying belt for handled easily personnel carries situation and ruuning situation,In one embodiment of the invention, as shown in Figure 4, conveying belt control device also comprisesThe monitoring element being connected with soft initiator 4, the band that can monitor in real time conveying belt carries situation,The normal run indicator of belt is for example set on control panel, belt further can also be setOverload alarm.
In another embodiment of the present invention, can also on conveying belt, connection speed detectModule, can carry out speed control and monitoring to conveying belt. Particularly, speed detection moduleComprise: with the co-axially fixed magnetic plate 9 of rotating shaft 10 of conveying belt with just to the speed on magnetic plateThe velocity sensor 7 that degree surveyed area 8 is installed, concrete mounting means as shown in Figure 5.
Further, in order in time the fault message of conveying belt to be informed to operatorMember can also set up alarm, alarm and monitoring element and velocity pick-up in control systemDevice is connected, and can remind the overload of conveying belt or cassette tape fault. Alternatively, vacationAs break down, can also automatically cut off contactor 2, force conveying belt out of service. ?In a specific embodiment, according to the control procedure block diagram shown in Fig. 6, in control systemFollowing device is set on guidance panel: a redness and a green indicator lamp are as monitoring unitPart, shows the duty of conveying belt in real time, the overload of the first buzzer to conveying belt thereforeBarrier is reported to the police, and the second buzzer is reported to the police to the velocity anomaly fault of conveying belt. WorkTime, if conveying belt band carries normally, green indicator lamp is bright, red indicator lamp goes out;If conveying belt overload, normally opened contact closure, red indicator lamp is bright, green instructionLamp goes out, and the first buzzer sends prompt tone simultaneously; If conveying belt speed is abnormal, as occurredCassette tape phenomenon, the second buzzer sends different prompt tones. Once velocity sensor 7 detectsTo the speed of conveying belt, lower than setting speed, control relay obtains electricly, makes normally-closed contactDisconnect, thereby cut off the power supply of contactor 2, force conveying belt out of service.
Along with the development of modernization control panel, in engineering, liquid can also be set on guidance panelCrystal display, while making operating personnel can obtain easily the startup of conveying belt or operationParameters.
Conveying belt control device of the present invention can need to carry out alternating current generator for anyThe occasion starting, the feeding device of for example all kinds of excavating equipments, is particularly suitable for subterranean tunnel darkThe feeding device of digging stillage truck.
Finally should be noted that: above embodiment is only in order to illustrate technical scheme of the present inventionNon-to its restriction; Although the present invention is had been described in detail with reference to preferred embodiment, underThe those of ordinary skill in field is to be understood that: still can enter the specific embodiment of the present inventionRow is revised or part technical characterictic is equal to replacement; And do not depart from technical solution of the present inventionSpirit, all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (9)
1. a conveying belt control device, comprising: at three phase mains and conveying belt motorBetween in turn connect breaker and contactor, described breaker can switch on or off described threePhase power supply, described contactor can carry out rotating control to described conveying belt motor, its spyLevy and be, between described contactor and described conveying belt motor, being connected with can stepless voltage regulationReduced voltage starter.
2. conveying belt control device according to claim 1, is characterized in that instituteStating reduced voltage starter is soft initiator, and described soft initiator adopts the antiparallel IGCT of three-phase to doFor pressure regulation device, and each mutually antiparallel described IGCT is also parallel with bypass contactor.
3. conveying belt control device according to claim 1, is characterized in that instituteStating reduced voltage starter is frequency converter.
4. according to the arbitrary described conveying belt control device of claim 1～3, its feature existsIn, also comprise the monitoring element being connected with described soft initiator, can monitor in real time conveying beltBand carry situation.
5. conveying belt control device according to claim 4, is characterized in that, alsoComprise the speed detection module being connected with described conveying belt, can detect described conveying beltThe speed of service.
6. conveying belt control device according to claim 5, is characterized in that instituteThe speed detection module of stating comprises: with the co-axially fixed magnetic plate of rotating shaft of described conveying belt and justThe velocity sensor that speed surveyed area on described magnetic plate is installed.
7. conveying belt control device according to claim 6, is characterized in that, alsoComprise the alarm being connected with described monitoring element and described velocity sensor, can be to described defeatedThe material overload operating mode of belt motor and the velocity anomaly of described conveying belt are reported to the police.
8. conveying belt control device according to claim 7, is characterized in that, alsoComprise relay and normally-closed contact, described relay can detect described conveying belt speedWhen abnormal, obtain electricly, open described normally-closed contact, thereby cut off the power supply of described contactor.
9. conveying belt control device according to claim 2, is characterized in that instituteStating soft initiator is electronic type soft initiator or electromagnetic type soft initiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603478.3A CN105610348A (en) | 2014-10-31 | 2014-10-31 | Conveyor belt control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603478.3A CN105610348A (en) | 2014-10-31 | 2014-10-31 | Conveyor belt control device |
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| Publication Number | Publication Date |
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| CN105610348A true CN105610348A (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410603478.3A Pending CN105610348A (en) | 2014-10-31 | 2014-10-31 | Conveyor belt control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704007A (en) * | 2018-12-14 | 2019-05-03 | 上海新朋联众汽车零部件有限公司 | Start-up and shut-down control method for automatic conveying belt system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309578U (en) * | 2011-06-29 | 2012-07-04 | 乐清市永日电气有限公司 | Intelligent starting box for motor |
| CN202798538U (en) * | 2012-07-31 | 2013-03-13 | 东莞市恒工设备有限公司 | Soft-starting MCC control cabinet |
| CN204316387U (en) * | 2014-10-31 | 2015-05-06 | 徐州徐工铁路装备有限公司 | conveying belt control device |
-
2014
- 2014-10-31 CN CN201410603478.3A patent/CN105610348A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309578U (en) * | 2011-06-29 | 2012-07-04 | 乐清市永日电气有限公司 | Intelligent starting box for motor |
| CN202798538U (en) * | 2012-07-31 | 2013-03-13 | 东莞市恒工设备有限公司 | Soft-starting MCC control cabinet |
| CN204316387U (en) * | 2014-10-31 | 2015-05-06 | 徐州徐工铁路装备有限公司 | conveying belt control device |
Non-Patent Citations (1)
| Title |
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| 何恩江: "软起动器在斗轮堆取料机控制系统中的应用", 《变频器世界》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704007A (en) * | 2018-12-14 | 2019-05-03 | 上海新朋联众汽车零部件有限公司 | Start-up and shut-down control method for automatic conveying belt system |
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Application publication date: 20160525 |