CN201466683U - Multi-motor protection and fault detection device - Google Patents
Multi-motor protection and fault detection device Download PDFInfo
- Publication number
- CN201466683U CN201466683U CN2009200759793U CN200920075979U CN201466683U CN 201466683 U CN201466683 U CN 201466683U CN 2009200759793 U CN2009200759793 U CN 2009200759793U CN 200920075979 U CN200920075979 U CN 200920075979U CN 201466683 U CN201466683 U CN 201466683U
- Authority
- CN
- China
- Prior art keywords
- motor
- motors
- group
- electric motor
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a multi-motor protection and fault detection device, which comprises at least 12 main motors, at least 12 brake motors, at least 12 fan motors, a plurality of air circuit breakers, fault indicator lights and other devices which are respectively connected with a PLC controller, wherein at least 12 main motors, at least 12 brake motors and at least 12 fan motors are divided into four groups according to the control requirements, and each main motor is respectively protected by an air circuit breaker; and each group of brake motors and each group of fan motors are respectively protected by an air circuit breaker. The device also comprises at least four groups of motor protection detection circuits, wherein each group of motor protection detection circuit comprises an intermediate relay control branch circuit and an indicator light control branch circuit which are connected in parallel. With the utility model, in an electric drive system driven by multiple motors, when any motor breaks down, the fault motor can be quickly found, and the operating efficiency of the system can be significantly improved.
Description
Technical field
The utility model relates to a kind of electrical fault checkout gear, particularly a kind of many electric motor protectings and fault fast detecting control device that is used for main motor-driven electric drive system.
Background technology
In building berth, harbour, dock zone, in the door electro-mechanical force dragging system of traditional relay control, the high pedestal jib crane that common specification is different (hereinafter to be referred as: the door machine) nearly twenties, maximum door machine lifting capacity is 200 tons, the walking mechanism main motor of walking adds that auxiliary micro-machine sum has 48, a little bit smaller door machine lifting capacity also has 45 tons, and the walking mechanism main motor of walking adds that stand-by motor has 36.In running, as long as there is a motor to break down, all can cause quitting work of whole door machine, therefore it is very crucial searching with the fastest speed that the motor that is out of order side by side resumes production in the shortest time.Main motor is 12 if walk, and then generally is divided into 2～3 groups and starts respectively, and every group with 2 total current relay protections.In the electric drive system that at present comparatively general employing frequency converter drives; every main motor is provided with main electric motor protecting components and parts; (air circuit claims again: air switch) as main motor air circuit; but their stand-by motor; such as brake motor and cooling blower motor; all has only a total protection air switch respectively; as brake motor air circuit or cooling blower motor air circuit; and these protection components and air switch all place the electric room of higher walking, position; the corresponding relation of each protection component and a certain motor is not directly perceived; add every door machine when different azimuth, the title of every movable motor is different.And different times manufacture and design installation the door machine, every movable motor also has skimble-scamble identifier on schematic diagram.This has brought great trouble just for quick repairing work.With a door electro-mechanical force dragging system that is driven by 12 main motor 5YD1～5YD12 is example: the many electric motor protectings control circuit shown in Fig. 1 a～Fig. 1 d; 12 main motor 5YD1～5YD12 are arranged; 12 brake motor 5TD1～5TD12, the dynamo-electric machine 5FD1～5FD12 of 12 typhoons.12 the main motor air circuit 5Q101～5Q112 and the total air circuit 5Q2 of motor that brakes; the total air circuit 5Q3 of blower motor together places an electric cabinet; if among main motor 5YD1～5YD12 a fault is arranged; though theoretically can be by PLC controller (the ProgrammableLogic Controller among Fig. 1 a～Fig. 1 d; programmable logic controller (PLC)) to find be that the motor of which numbering breaks down to input state; but in the practice since in the schematic diagram in the numbering of motor and the reality corresponding relation of certain motor not directly perceived; often not that each maintenance personal can both find out very soon; moreover in some design; be that several main electric motor protecting signals advance a PLC controller input point altogether; if have one to break down among brake motor 5TD1～5TD12; then only can cause total air circuit 5Q2 action of brake motor 5TD1～5TD12; and will find out immediately in 12 main motor 5YD1～5YD12 is that fault has taken place which platform master motor, then ten minutes trouble and quite loaded down with trivial details.In like manner, when blower motor broke down, maintenance also was same inconvenience.
The utility model content
Technical problem to be solved in the utility model be for overcome existing in how motor-driven electric drive system when wherein a motor breaks down; can not investigate the defective that is out of order motor and incurs loss through delay production fast; provide a kind of and can investigate the motor that is out of order fast, and can improve the many electric motor protectings and the failure detector of running efficiency of system.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of many electric motor protectings and failure detector, it comprises at least ten two main motors that link to each other with a PLC controller respectively, at least ten two brake motors, the dynamo-electric machine of at least ten two typhoons, many air circuits, its characteristics are, described at least ten two main motors, described at least ten two brake motors, the dynamo-electric machine of described at least ten two typhoons all is divided into four groups at least, and every main motor connects an air circuit respectively; Every group of brake motor is connected a described air circuit respectively with every group of blower motor; These many electric motor protectings and failure detector also comprise at least four group electric motor protecting testing circuits; each is organized this electric motor protecting testing circuit and is made up of auxiliary relay control branch road parallel with one another and indicator light control branch road; each is organized this electric motor protecting testing circuit and comprises: respectively with one group of this main motor; one group of should brake motor and one group of each this air circuit that this blower motor links to each other; one auxiliary relay and an indicator light; all these air circuits are four utmost point systems; this auxiliary relay has a normally opened contact at least; one normally-closed contact and a solenoid; wherein; this indicator light control branch road is made up of normally-closed contact and this indicator light of this auxiliary relay of mutual serial connection at least; the 4th utmost point of these auxiliary relay control all these air circuits of route is connected in series successively; and compose in series with the solenoid of this auxiliary relay, a normally opened contact of this auxiliary relay inserts this PLC controller.
Wherein, this device also comprises at least four guard boxs with a chamber door; the electric motor protecting testing circuit of this device is four groups of electric motor protecting testing circuits; be equipped with all these air circuits and this auxiliary relay of one road this electric motor protecting testing circuit in each guard box respectively, each indicator light of organizing this electric motor protecting testing circuit all is located on the chamber door of this guard box respectively.
Wherein, these 12 main motors are divided into parallel with one another four groups, and each is organized main motor and comprises three main motors parallel with one another, and each main motor is connected in series this air circuit respectively.
Wherein, these 12 brake motors are divided into parallel with one another four groups, and each group brake motor comprises three brake motors parallel with one another, and this air circuit of each group brake motor inserts this PLC controller by a total air switch.
Wherein, the dynamo-electric unit of this 12 typhoon is divided into parallel with one another four groups, and each is organized blower motor and comprises three blower motors parallel with one another, and each this air circuit of organizing blower motor inserts this PLC controller by a total air switch.
Wherein, respectively the power supply of this auxiliary relay and this indicator light control branch road for this motor that brakes with power supply or this ventilated machine power supply, or be a power supply that provides separately.
Wherein, respectively the power supply of this auxiliary relay and this indicator light control branch road for this motor that brakes with power supply or this ventilated machine power supply, or be a power supply that provides separately.
Positive progressive effect of the present utility model is: the utility model can be according to the light and shade state of the indicator light on each guard box chamber door; the fault motor is locked in earlier in a certain door leg guard box of only controlling 1/4th motor total amounts; then according to having moved the numbering of air circuit in this guard box, find out the fault motor immediately and got rid of.Therefore can repair facility with speed efficiently, recovery system production has so just significantly reduced the time of keeping in repair, and has improved system works efficient.
Description of drawings
Fig. 1 a is the electrical control figure of main motor in the existing power dragging system.
Fig. 1 b is the electrical control figure of brake motor in the existing power dragging system.
Fig. 1 c is the electrical control figure of blower motor in the existing power dragging system.
Fig. 1 d is the terminal connection diagram of the PLC controller of existing power dragging system.
Fig. 2 a is the electrical control figure of the main motor of the utility model one preferred embodiment.
Fig. 2 b is the electrical control figure of the brake motor of the utility model one preferred embodiment.
Fig. 2 c is the electrical control figure of the blower motor of the utility model one preferred embodiment.
Fig. 2 d is the terminal connection diagram of the PLC controller of the utility model one preferred embodiment.
Fig. 3 a is the electric motor protecting testing circuit figure of the utility model one preferred embodiment 1# guard box.
Fig. 3 b is the electric motor protecting testing circuit figure of the utility model one preferred embodiment 2# guard box.
Fig. 3 c is the electric motor protecting testing circuit figure of the utility model one preferred embodiment 3# guard box.
Fig. 3 d is the electric motor protecting testing circuit figure of the utility model one preferred embodiment 4# guard box.
Embodiment
Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
The utility model provides a kind of many electric motor protectings and failure detector, and these many electric motor protectings and failure detector are exclusively used in the investigation of electrical fault in the electro-mechanical force dragging system.These many electric motor protectings comprise at least four groups main motor parallel with one another that links to each other with a PLC controller respectively with failure detector; the brake motor that at least four groups are parallel with one another; the blower motor that at least four groups are parallel with one another; many air circuits; wherein; every group of master's motor comprises three main motors parallel with one another, and every main motor is provided with special-purpose main motor air circuit and protects.Every group of brake motor comprises three brake motors parallel with one another; every group of brake motor is that unit is provided with a total protection air circuit with every leg identical function; every group of blower motor comprises three blower motors parallel with one another, and every group of blower motor is that unit is provided with a total protection air circuit with every leg identical function also.Many electric motor protectings of the present utility model and failure detector also comprise at least four group electric motor protecting testing circuits; branch road is parallel with one another forms by auxiliary relay control branch road and indicator light control for every road electric motor protecting testing circuit; each is organized the electric motor protecting testing circuit and comprises: respectively with one group of master's motor; one group of brake motor and one group of each this air circuit, an auxiliary relay and indicator light that blower motor links to each other.Comprise four groups of electric motor protecting testing circuits, four groups of door machine walking mechanism master motors, four groups of brake motors and four groups of blower motors, a plurality of air circuits and four auxiliary relays, four indicator lights in the door machine running gear of present embodiment.Each auxiliary relay has a normally opened contact, a normally-closed contact and a solenoid at least, all air circuits all adopt four utmost point systems, the normally-closed contact and an indicator light of each road indicator light control route one auxiliary relay compose in series, and are used for pointing out whether motor breaks down in this leg administrative area.Each auxiliary relay control branch road is connected in series the solenoid of an auxiliary relay of back control successively by the 4th utmost point with each air circuit of this branch road, the actuating signal of air circuit when obtaining every electrical fault, the actuating signal of the air circuit of each main group of motors inserts the PLC controller by a normally opened contact of coupled auxiliary relay, to guarantee the trouble free service of main motor-driven whole electric drive system.The power supply of control auxiliary relay and pilot lamp loop can be used brake motor power or blower motor power supply according to concrete circuit situation, or wiring is supplied with specially.
For the ease of investigation; in the present embodiment each group electric motor protecting testing circuit control three main motor air circuits and auxiliary relay, a chamber door indicator light down is divided in four door leg guard boxs, and a shared blower motor air circuit of the shared brake motor air circuit of per three brake motors and per three blower motors also places respectively in same the leg guard box.Like this maintenance personal reach just can be according to indicator light light and shade state on the guard box chamber door on four branch door legs in on-the-spot very first time; the fault motor is locked in earlier in a certain branch door leg scope of having only 1/4th motor total amounts; then according to having moved the numbering of air circuit in the guard box, find out the fault motor immediately and got rid of.
Specify the utility model Device Testing principle below in conjunction with Fig. 2 a～Fig. 2 d, Fig. 3 a～Fig. 3 d: 12 main motor 5YD of present embodiment
1～12Also become four groups, 12 brake motor 5TD
1～12Be divided into four groups, the dynamo-electric machine 5FD of 12 typhoons
1～12Also be divided into four groups.With four groups of master's motor 5YD
1～1212 air circuit 5Q101～5Q112 be divided in four door leg guard boxs, at four groups of brake motor 5TD
1～12In; the dynamo-electric machine of per three brake motors and per three typhoons is separately respectively with an air circuit protection; also place respectively in this same guard box; protect with an air circuit respectively separately with the dynamo-electric machine of per three typhoons; simultaneously, in same guard box, install same group of electric motor protecting testing circuit additional and control next merely hit a relay and a chamber door indicator light.1# door leg guard box shown in Fig. 3 a is an example, and one group of one group of master's motor 5YD under the control of electric motor protecting testing circuit is installed in 1# door leg guard box
1～3Air circuit 5Q101,5Q102,5Q103, one group of brake motor 5TD
1～3An air circuit 5Q201 who share, one group of blower motor 5FD
1～3An air circuit 5Q301 who share.When this organizes main motor 5YD
1～3, this group brake motor 5TD
1～3And this group blower motor 5FD
1～ 3In arbitrary motor when breaking down, can cause that all this organizes air circuit 5Q101, the 5Q102 of main motor, 5Q103, this group brake motor 5TD
1～3The air circuit 5Q201 that share, this group blower motor 5FD
1～3Some actions among the air circuit 5Q301 that share; make with the solenoid dead electricity that places the auxiliary relay 5KA1 in this 1# door leg guard box; this moment the PLC controller input point (703,00108) signal change; the operational system of then walking enters parking procedure; simultaneously because the solenoid dead electricity of auxiliary relay 5KA1; the indicator light conducting that then is connected in series with the normally-closed contact of this auxiliary relay 5KA1 and is positioned on the 1# electic protection case chamber door is lighted, and occurs in this indication fault motor in the scope of 1# door leg guard box.
In like manner; when other group motors break down; indicator light on its respective doors leg guard box chamber door will be lighted; so just the malfunction elimination scope is dwindled in the motor investigation scope of having only 1/4th total amounts of this leg guard box inner control; therefore shortened the malfunction elimination time greatly, can repair facility, resumed production with speed efficiently; so just significantly reduce the time of maintenance, improved operating efficiency.How motor-driven door machine walking electrical control division in the present embodiment is divided into prior art, does not give unnecessary details at this.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these execution modes.Therefore, protection range of the present utility model is limited by appended claims.
Claims (6)
1. electric motor protecting and failure detector more than one kind, it comprises at least ten two main motors that link to each other with a PLC controller respectively, at least ten two brake motors, the dynamo-electric machine of at least ten two typhoons, many air circuits is characterized in that, described at least ten two main motors, described at least ten two brake motors, the dynamo-electric machine of described at least ten two typhoons all is divided into four groups at least, and described every main motor connects a described air circuit respectively; Every group of brake motor is connected a described air circuit respectively with every group of blower motor; These many electric motor protectings and failure detector also comprise at least four group electric motor protecting testing circuits; each is organized this electric motor protecting testing circuit and is made up of auxiliary relay control branch road parallel with one another and indicator light control branch road; each is organized this electric motor protecting testing circuit and comprises: respectively with one group of this main motor; one group of should brake motor and one group of each this air circuit that this blower motor links to each other; one auxiliary relay and an indicator light; all these air circuits are four utmost point systems; this auxiliary relay has a normally opened contact at least; one normally-closed contact and a solenoid; wherein; this indicator light control branch road is made up of normally-closed contact and this indicator light of this auxiliary relay of mutual serial connection at least; the 4th utmost point of these auxiliary relay control all these air circuits of route is connected in series successively; and compose in series with the solenoid of this auxiliary relay, a normally opened contact of this auxiliary relay inserts this PLC controller.
2. many electric motor protectings as claimed in claim 1 and failure detector; it is characterized in that; this device also comprises at least four guard boxs with a chamber door; the electric motor protecting testing circuit of this device is four groups of electric motor protecting testing circuits; be equipped with all these air circuits and this auxiliary relay of one group of this electric motor protecting testing circuit in each guard box respectively, each indicator light of organizing this electric motor protecting testing circuit all is located on the chamber door of this guard box respectively.
3. many electric motor protectings as claimed in claim 2 and failure detector is characterized in that, these 12 main motors are divided into parallel with one another four groups, and each is organized main motor and comprises three main motors parallel with one another, and each main motor is connected in series this air circuit respectively.
4. many electric motor protectings as claimed in claim 3 and failure detector; it is characterized in that; these 12 brake motors are divided into parallel with one another four groups; each group brake motor comprises three brake motors parallel with one another, and this air circuit of each group brake motor inserts this PLC controller by a total air switch.
5. many electric motor protectings as claimed in claim 4 and failure detector; it is characterized in that; the dynamo-electric unit of this 12 typhoon is divided into parallel with one another four groups; each is organized blower motor and comprises three blower motors parallel with one another, and each this air circuit of organizing blower motor inserts this PLC controller by a total air switch.
6. as any described many electric motor protectings and failure detector in the claim 1 to 5; it is characterized in that; respectively the power supply of this auxiliary relay and this indicator light control branch road for this motor that brakes with power supply or this ventilated machine power supply, or be a power supply that provides separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200759793U CN201466683U (en) | 2009-08-07 | 2009-08-07 | Multi-motor protection and fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200759793U CN201466683U (en) | 2009-08-07 | 2009-08-07 | Multi-motor protection and fault detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466683U true CN201466683U (en) | 2010-05-12 |
Family
ID=42394030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200759793U Expired - Lifetime CN201466683U (en) | 2009-08-07 | 2009-08-07 | Multi-motor protection and fault detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466683U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937702A (en) * | 2012-12-01 | 2013-02-20 | 新余钢铁集团有限公司 | Auxiliary circuit capable of rapidly searching motor fault |
| CN103683891A (en) * | 2013-12-19 | 2014-03-26 | 西南铝业（集团）有限责任公司 | Frequency converter control circuit and method and speed control system |
| CN111722106A (en) * | 2020-06-05 | 2020-09-29 | 格力电器（合肥）有限公司 | Motor operation detection system and method |
-
2009
- 2009-08-07 CN CN2009200759793U patent/CN201466683U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937702A (en) * | 2012-12-01 | 2013-02-20 | 新余钢铁集团有限公司 | Auxiliary circuit capable of rapidly searching motor fault |
| CN103683891A (en) * | 2013-12-19 | 2014-03-26 | 西南铝业（集团）有限责任公司 | Frequency converter control circuit and method and speed control system |
| CN103683891B (en) * | 2013-12-19 | 2016-08-24 | 西南铝业（集团）有限责任公司 | A kind of transducer control circuit, method and speed-adjusting and control system |
| CN111722106A (en) * | 2020-06-05 | 2020-09-29 | 格力电器（合肥）有限公司 | Motor operation detection system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104137372A (en) | A DC-power system with system protection capabilities | |
| CN102387933A (en) | Drive control system | |
| CN201466683U (en) | Multi-motor protection and fault detection device | |
| WO2011056696A2 (en) | Fault monitoring system for electric single or poly-phase chain hoist motors | |
| CN102729841B (en) | Power supply arm wiring system and anchor articulated type split-phase system | |
| CN109319234A (en) | A kind of urgent protective switch tripping fault diagnostic system of packing machine | |
| CN102545375B (en) | Automatic switching on/off method for emergency power supply of power plant | |
| CN111585337A (en) | Power supply system and work vehicle | |
| CN203535152U (en) | Hidden defect detection device for external starting contact of failure protection | |
| CN105417334B (en) | A kind of staircase integrated control system | |
| CN201298176Y (en) | Oil pump controlling cabinet of transformer cooling fan | |
| CN202696536U (en) | In-situ and remote distributed control system (DCS) interlock electric device for electric machine | |
| CN105655095A (en) | Air-cooled control device | |
| CN203787530U (en) | Battery assembly circuit breaking control system as well as battery assembly and vehicle with same | |
| KR101541208B1 (en) | Control module with connection devices for connection to connection terminals of a load feeder and load feeder | |
| CN102243287B (en) | Method for monitoring multipoint grounding failure of magnetic suspension stator coil | |
| CN101714776A (en) | 10KV station electric control system of convertor station adopting selecting 2 from 3 logic | |
| CN201754521U (en) | Power transformation and supply system | |
| CN102522926A (en) | Device for separate delay starting of induced draft fans | |
| CN210068249U (en) | Control module adopting two-out-of-three logic voting | |
| CN205265237U (en) | Variant -frequency vibration motor protection device | |
| CN202424594U (en) | Windward machine control device | |
| KR100273501B1 (en) | Apparatus for automatically switching multiple power supplies for securing electric power | |
| CN104917215A (en) | Battery pack open circuit control system and battery pack and vehicle provided with same | |
| CN214590563U (en) | Power distribution protection system for 260T crown block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |