CN202379644U - Electric control device for electric hoist - Google Patents
Electric control device for electric hoist Download PDFInfo
- Publication number
- CN202379644U CN202379644U CN2011205270329U CN201120527032U CN202379644U CN 202379644 U CN202379644 U CN 202379644U CN 2011205270329 U CN2011205270329 U CN 2011205270329U CN 201120527032 U CN201120527032 U CN 201120527032U CN 202379644 U CN202379644 U CN 202379644U
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- contactless
- contactless switch
- coil
- tightly
- switch
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Abstract
The utility model belongs to the field of hoisting machinery and particularly relates to an electric control device for an electric hoist. The electric control device comprises four moving contactors, a first emergency stop contactor and a second emergency stop contactor. Middle main contacts of the two emergency stop contactors are switched into a dynamic power supply after being connected in series; the other main contacts of the two emergency stop contactors are also respectively switched into the dynamic power supply; the middle main contacts of the two emergency stop contactors are connected with middle main contacts of the four moving contactors; the other main contacts of the two emergency stop contactors are also respectively connected with another two main contacts of each moving contactor; and an auxiliary contact of the first emergency stop contactor and an auxiliary contact of the second emergency stop contactor are connected in parallel with a coil of the second emergency stop contactor after being connected in series with a coil of the first emergency stop contactor and are connected in parallel with four moving coils. The electric control device has the beneficial effects that under the condition that a fault is generated, two phases are powered off so as to prevent an accident, protect a motor, reduce the sticking of the main contacts of the dynamic contactors and reduce the sticking fault rate of the fault contactors.
Description
Technical field
The utility model belongs to the elevator machinery field, relates in particular to a kind of electrical controller of electric block.
Background technology
The electric control system simplicity of design of existing electric block, the common positive and reverse rotation control circuit of control and traversing control utilization that goes up and down, by power circuit breaker control power loop power supply, supply transformer provides the safety control power supply.Control when using, directly control the traversing action and the hook lifting action of electric block through action button.Lifting motor carries out lifting action by action button its contactless for hoisting coil of control and decline contactless coil; When circuit fire stop arrived the limes superiors position set and smallest limit position under the effect of reel faking device, the two phase electrical source of power of breaking off lifting motor immediately stopped lifting action.Traversing motor carries out left and right traversing action by its left and right walking contactless coil of action button control.
In the production run electric block process,, receive the influence of environment for use bigger at the scene owing to manipulate frequently, and the management of the nonstandardized technique in the plant maintenance work, make the machinery of electric block and electric elements very easily impaired, cause its fault rate height, life-span weak point.Generally speaking; For the more contactless switch adhesion accident of electric block probability failure; Though existing circuit fire stop can effectively break off the power loop power supply; But its design is not received positive effect yet on the problem of handling outage in time, causes coming in contact emergencies such as the adhesion of device generation main contact, push contact be stuck through regular meeting.
Summary of the invention
The utility model technical matters to be solved provides a kind of electrical controller of electric block of the fault rate that can in time cut off the power supply and effectively reduce the contactless switch adhesion.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of electrical controller of electric block; Comprise lifting motor and traversing motor; And contactless for hoisting, decline contactless switch, left lateral contactless switch and right lateral contactless switch; Comprise that also first tightly stops contactless switch and second and tightly stop contactless switch, said first tightly stops the middle main contact series connection back that contactless switch and second tightly stops contactless switch inserts electrical source of power, and said first tightly stops each another one main contact that contactless switch and second tightly stops contactless switch also inserts electrical source of power respectively; Said first tightly stops the middle main contact that contactless switch and second tightly stops contactless switch is connected with said contactless for hoisting, decline contactless switch, left lateral contactless switch and the intermediate contact of right lateral contactless switch, and said first tightly stops each another one main contact that contactless switch and second tightly stops contactless switch also is connected with two other main contact of said contactless for hoisting, decline contactless switch, left lateral contactless switch and right lateral contactless switch respectively; Said first tightly stop contactless switch secondary contact, second tightly stop contactless switch secondary contact and said first and tightly stop the contactless coil coils from parallel connection of coils that back and second tightly stops contactless switch of connecting, and parallelly connected with said contactless for hoisting coil, decline contactless coil, left lateral contactless coil and right lateral contactless coil.
Said contactless for hoisting coil, decline contactless coil, left lateral contactless coil and the right lateral contactless coil control button of respectively connecting; Form rise and descend control branch road and left lateral and right lateral control branch road; Said second tightly stops control button of coil series connection of contactless switch, forms and tightly stops to control branch road.
The electrical controller of said electric block also comprises the limiting device that heavily sticks together, and the said heavy limiting device that sticks together is arranged between the control button of coil of coil and said contactless for hoisting of said contactless for hoisting.
The electrical controller of said electric block also comprises a latch buttons, and said latch buttons is with said tightly to stop to control branch road, rising and decline control branch road and left lateral and right lateral parallelly connected with the control branch road.
The beneficial effect of the utility model is that design is succinct, and it is convenient to install; Two outages mutually down that a situation arises prevent accident, the protection motor.Reduce the adhesion of power main noddle on contactor, reduce fault contactless switch adhesion fault rate.
Description of drawings
Further specify below in conjunction with accompanying drawing and the specific embodiment technical scheme the utility model.
Fig. 1 is the schematic diagram of electrical controller of the embodiment electric block of the utility model.
The specific embodiment
A kind of electrical controller of electric block; As shown in Figure 1; Comprise contactless for hoisting KM3, decline contactless switch KM4, left lateral contactless switch KM5 and right lateral contactless switch KM6; Contactless for hoisting KM3, decline contactless switch KM4 are connected with lifting motor 1, and left lateral contactless switch KM5 is connected with traversing motor 2 with right lateral contactless switch KM6, comprise that also first tightly stops contactless switch KM1 and second and tightly stop contactless switch KM2; First tightly stop contactless switch KM1 middle main contact and the second middle main contact series connection back of tightly stopping contactless switch insert electrical source of power, first tightly stop contactless switch KM1 another one main contact and the second another one main contact that tightly stops contactless switch also insert electrical source of power respectively; First tightly stop contactless switch KM1 middle main contact and the second middle main contact that tightly stops contactless switch KM2 be connected with contactless for hoisting KM3, decline contactless switch KM4, left lateral contactless switch KM5 and the intermediate contact of right lateral contactless switch KM6, first tightly stop contactless switch KM1 another one main contact and the second another one main contact that tightly stops contactless switch also be connected with contactless for hoisting KM3, decline contactless switch KM4, left lateral contactless switch KM5 and two other main contact of right lateral contactless switch KM6 respectively; First tightly stop contactless switch KM1 secondary contact, second tightly stop contactless switch KM2 secondary contact and first and tightly stop the contactless switch KM1 coil coils from parallel connection of coils that back and second tightly stops contactless switch KM2 of connecting, and with the coil of contactless for hoisting KM3, the coil of decline contactless switch KM4, the coil of left lateral contactless switch KM5 and the coils from parallel connection of coils of right lateral contactless switch KM6.Control button SB4 of coil series connection of control button SB2 of coil series connection of contactless for hoisting KM3, control button SB3 of coil series connection of decline contactless switch KM4, left lateral contactless switch KM5; Control button SB5 of coil series connection of right lateral contactless switch KM6 forms rise and descend control branch road and left lateral and right lateral control branch road; Second tightly stops control button SB1 of coil series connection of contactless switch, forms and tightly stops to control branch road.The limiting device SQ that heavily sticks together is connected between the control button SB2 of coil of coil and contactless for hoisting of contactless for hoisting KM3.Latch buttons SBE is with said tightly to stop to control branch road, rising and decline control branch road and left lateral and right lateral parallelly connected with the control branch road.
The electrical controller of this electric block has used the mode that two-restriction is stopped contactless switch and the limiting device SQ that heavily sticks together combines; After the SBE latch buttons of closing, tightly stop contactless switch KM1 and KM2 coil simultaneously electric, if there is any one tightly to stop the contactless switch fault; Then contactless switch auxiliary contact KM1, KM2 can't be closed simultaneously; Two-restriction is stopped contactless coil and all can't self-locking be kept so, and power loop is a phase power supply only, plays the safety control effect under the failure condition.Simultaneously, two-restriction is stopped the frame mode of contactless switch, makes contactless switch three contact effects become two contact effects, and main contact stiction force F is reduced to F '=2/3F, with the fault rate that effectively reduces the contactless switch adhesion.At last, if when contactless switch adhesion or emergency such as stuck in operating process, occurring, unclamp latch buttons SBE; Even then one of them tightly stops contactless switch adhesion or stuck; Another also can break off main contact at any time, and at this moment, only a phase electrical source of power is supplied with; Promptly can in time cut off the power supply, again Reasonable Protection motor.
In a word, the design of the electrical controller of this electric block is succinct, and it is convenient to install; Two outages mutually down that a situation arises prevent accident, the protection motor.Reduce the adhesion of power main noddle on contactor, reduce fault contactless switch adhesion fault rate.
It should be noted last that; The above specific embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (4)
1. the electrical controller of an electric block; Comprise contactless for hoisting, decline contactless switch, left lateral contactless switch and right lateral contactless switch; Be characterised in that; Comprise that also first tightly stops contactless switch and second and tightly stop contactless switch, said first tightly stops the middle main contact series connection back that contactless switch and second tightly stops contactless switch inserts electrical source of power, and said first tightly stops each another one main contact that contactless switch and second tightly stops contactless switch also inserts electrical source of power respectively; Said first tightly stops the middle main contact that contactless switch and second tightly stops contactless switch is connected with said contactless for hoisting, decline contactless switch, left lateral contactless switch and the intermediate contact of right lateral contactless switch, and said first tightly stops each another one main contact that contactless switch and second tightly stops contactless switch also is connected with two other main contact of said contactless for hoisting, decline contactless switch, left lateral contactless switch and right lateral contactless switch respectively; Said first tightly stop contactless switch secondary contact, second tightly stop contactless switch secondary contact and said first and tightly stop the contactless coil coils from parallel connection of coils that back and second tightly stops contactless switch of connecting, and parallelly connected with said contactless for hoisting coil, decline contactless coil, left lateral contactless coil and right lateral contactless coil.
2. according to the electrical controller of the said electric block of claim 1; It is characterized in that; Said contactless for hoisting coil, decline contactless coil, left lateral contactless coil and the right lateral contactless coil control button of respectively connecting; Form rise and descend control branch road and left lateral and right lateral control branch road, said second tightly stops control button of coil series connection of contactless switch, forms and tightly stops to control branch road.
3. according to the electrical controller of the said electric block of claim 2, it is characterized in that, also comprise the limiting device that heavily sticks together, the said heavy limiting device that sticks together is arranged between the control button of coil of coil and said contactless for hoisting of said contactless for hoisting.
4. according to the electrical controller of the said electric block of claim 2, it is characterized in that, also comprise a latch buttons, said latch buttons is with said tightly to stop to control branch road, rising and decline control branch road and left lateral and right lateral parallelly connected with the control branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205270329U CN202379644U (en) | 2011-12-16 | 2011-12-16 | Electric control device for electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205270329U CN202379644U (en) | 2011-12-16 | 2011-12-16 | Electric control device for electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202379644U true CN202379644U (en) | 2012-08-15 |
Family
ID=46628161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205270329U Expired - Fee Related CN202379644U (en) | 2011-12-16 | 2011-12-16 | Electric control device for electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202379644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646367A (en) * | 2020-04-15 | 2020-09-11 | 张�杰 | Control system of electric hoist crane |
| CN114428525A (en) * | 2022-01-18 | 2022-05-03 | 常州大全电气有限公司 | System and method for controlling working state of electric control system |
-
2011
- 2011-12-16 CN CN2011205270329U patent/CN202379644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646367A (en) * | 2020-04-15 | 2020-09-11 | 张�杰 | Control system of electric hoist crane |
| CN114428525A (en) * | 2022-01-18 | 2022-05-03 | 常州大全电气有限公司 | System and method for controlling working state of electric control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20171216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |