CN204696660U - A kind of Motor Driven Elevating Calabash contactor adhesion protective device - Google Patents
A kind of Motor Driven Elevating Calabash contactor adhesion protective device Download PDFInfo
- Publication number
- CN204696660U CN204696660U CN201520278458.3U CN201520278458U CN204696660U CN 204696660 U CN204696660 U CN 204696660U CN 201520278458 U CN201520278458 U CN 201520278458U CN 204696660 U CN204696660 U CN 204696660U
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- China
- Prior art keywords
- contactor
- coil
- monitoring
- contactless
- hoisting
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of Motor Driven Elevating Calabash contactor adhesion protective device, comprise major loop and control loop, described control loop comprises total contactor, contactless for hoisting and decline contactor, contactless for hoisting and decline contactor reversible, interlocking, also comprise testing circuit, testing circuit comprises the time relay and monitoring contactor, the input of the coil of described monitoring contactor is connected with the normally opened contact of contactless for hoisting and decline contactor respectively, the output of the coil of monitoring contactor is connected with the output of the coil of total contactor, the described time relay is connected on major loop by the normally-closed contact and three phase mains monitoring contactor, one normally-closed contact of the time relay is connected between the coil of control switch and total contactor.The utility model line design is simple, and cost is low, increases by a testing circuit, can effectively automatically make electric block quit work when being elevated contactor adhesion, thus the equipment of guarantee or personal security.
Description
Technical field
The utility model relates to a kind of Motor Driven Elevating Calabash contactor, is specifically related to a kind of Motor Driven Elevating Calabash contactor adhesion protective device.
Background technology
Conventional electric block uses crawl frequent due to operating personnel, and easily cause the contactor controlling cucurbit lifting generate heat and cause contacts of contactor adhesion, cucurbit normally can not be quit work, often cause the generation damaging hanging device or cause operating personnel's casualty accident.If Fig. 1 is existing Motor Driven Elevating Calabash control principle drawing, can find out in FIG, when ascending, descending contactor K11 or K12 arbitrary non-normal working contact adhesion, must artificially judge, turn off stop button S20 and just can make total contactor K0 power-off, cucurbit is quit work, and there is potential safety hazard in therefore traditional cucurbit elevating control mode.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provide a kind of line design simple, cost is low, the Motor Driven Elevating Calabash contactor adhesion protective device that fail safe is high.
The technical scheme that the utility model adopts is: a kind of Motor Driven Elevating Calabash contactor adhesion protective device, comprise major loop and control loop, described control loop comprises total contactor, contactless for hoisting and decline contactor, contactless for hoisting and decline contactor reversible, interlocking, also comprise testing circuit, testing circuit comprises the time relay and monitoring contactor, the input of the coil of described monitoring contactor is connected with the normally opened contact of contactless for hoisting and decline contactor respectively, the output of the coil of monitoring contactor is connected with the output of the coil of total contactor, the described time relay is connected on major loop by the normally-closed contact and three phase mains monitoring contactor, one normally-closed contact of the time relay is connected between the coil of control switch and total contactor.
The beneficial effects of the utility model are: the utility model line design is simple, and cost is low, increases by a testing circuit, can effectively automatically make electric block quit work when being elevated contactor adhesion, thus the equipment of guarantee or personal security.
Accompanying drawing explanation
Fig. 1 is existing Motor Driven Elevating Calabash fundamental diagram;
Fig. 2 is fundamental diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in further detail.
Embodiment:
As shown in Figure 2, the utility model comprises major loop and control loop, described control loop comprises total contactor KO, contactless for hoisting K11 and decline contactor K12, contactless for hoisting K11 and decline contactor K12 is reversible, interlocking, also comprise testing circuit, testing circuit comprises time relay K01 and monitoring contactor K13, the input of the coil K13 of described monitoring contactor K13 respectively with the normally opened contact K11 of contactless for hoisting K11 and decline contactor K12, K12 connects, the output of the coil K13 of monitoring contactor K13 is connected with the output of the coil KO of total contactor KO, described time relay K01 is connected on major loop by the normally-closed contact K13 and three phase mains monitoring contactor K13, the one normally-closed contact K01 of time relay K01 is connected between the coil KO of control switch and total contactor KO.
Three main contact inputs of total contactor KO directly connect three phase mains, control on/off, and during electric block work, three main contacts of total contactor KO are in closure state.The 36VDC output of 380VAC control transformer T connects start button S10 successively, always stops the coil K0 of button S20, the normally-closed contact K01 of time relay K01, the auxiliary contact K0 of total contactor K0 and total contactor K0, contactless for hoisting K11 and decline contactor K12 interlocks, and then controls its work respectively by play button S11, S12.
Utility model works process: after energising, when Q0 power supply protector closes, press start button S10, total contactor K0 coil is energized immediately and closes and self-locking, control loop main road is energized, if at this moment when play button S11 (or S12) does not press, rise, falling contactor K11 and K12 is that normal operating conditions does not stick together phenomenon, so the coil K11 (or K12) of contactor K11 (or K12) just can not obtain and electricly make control loop main road power turn-on, cucurbit is in orderly shutdown state, contactor K13 and time relay K01 is now also because normal off position is all located in the non-conducting of control coil power supply in monitoring, if control loop main road is energized, do not press at play button S11 (or S12), rise, falling contactor K11 and K12 is arbitrary phenomenon that sticks together, at this moment because of normally-closed contact K11 (or K12) adhesion, that major loop is obtained is electric, electric block is also in play button S11 (or S12) and does not press and the improper starting state of danger be certainly energized, and at this moment monitor contactor K13 because of play button S11 (or S12) and do not press, the actuating coil of monitoring contactor K13 not electric, K13 is now failure to actuate, K13 normally-closed contact is still closure state, this makes the coil KO1 of time relay K01 be energized, the normally-closed contact K01 action of time relay K01, make control loop main road total contactor K0 coil K0 power-off, thus control loop main road power supply is disconnected, make cucurbit auto-breaking when improper startup, thus the safety of the equipment of guarantee or personnel.
Claims (1)
1. a Motor Driven Elevating Calabash contactor adhesion protective device, comprise major loop and control loop, described control loop comprises total contactor, contactless for hoisting and decline contactor, contactless for hoisting and decline contactor reversible, interlocking, it is characterized in that: also comprise testing circuit, testing circuit comprises the time relay and monitoring contactor, the input of the coil of described monitoring contactor is connected with the normally opened contact of contactless for hoisting and decline contactor respectively, the output of the coil of monitoring contactor is connected with the output of the coil of total contactor, the described time relay is connected on major loop by the normally-closed contact and three phase mains monitoring contactor, one normally-closed contact of the time relay is connected between the coil of control switch and total contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278458.3U CN204696660U (en) | 2015-04-30 | 2015-04-30 | A kind of Motor Driven Elevating Calabash contactor adhesion protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278458.3U CN204696660U (en) | 2015-04-30 | 2015-04-30 | A kind of Motor Driven Elevating Calabash contactor adhesion protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204696660U true CN204696660U (en) | 2015-10-07 |
Family
ID=54236913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520278458.3U Expired - Fee Related CN204696660U (en) | 2015-04-30 | 2015-04-30 | A kind of Motor Driven Elevating Calabash contactor adhesion protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204696660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111880399A (en) * | 2020-06-30 | 2020-11-03 | 海益（厦门）建材工业有限公司 | Lifting circuit and lifting device capable of achieving anti-clamping |
-
2015
- 2015-04-30 CN CN201520278458.3U patent/CN204696660U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111880399A (en) * | 2020-06-30 | 2020-11-03 | 海益（厦门）建材工业有限公司 | Lifting circuit and lifting device capable of achieving anti-clamping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Electric block lift contactor adhesion protection device Effective date of registration: 20170123 Granted publication date: 20151007 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: Sichuan Chuan Qi weight-lifting equipment Co., Ltd Registration number: 2017510000008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20180430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |