CN212863888U - Bridge crane cart alignment lighting control device - Google Patents
Bridge crane cart alignment lighting control device Download PDFInfo
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- CN212863888U CN212863888U CN202021187493.1U CN202021187493U CN212863888U CN 212863888 U CN212863888 U CN 212863888U CN 202021187493 U CN202021187493 U CN 202021187493U CN 212863888 U CN212863888 U CN 212863888U
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- limit switch
- trolley
- plc system
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Abstract
The utility model discloses a bridge crane cart alignment lighting control device, including the external electric signal cable, electric room PLC system and the light that connect gradually the circuit breaker, two-position key switch, dolly limit switch, cart limit switch, PLC system that form the return circuit, circuit breaker is closed, two-position key switch open the illumination, when the dolly reaches the assigned position, dolly limit switch normally open the contact closure, the cart reachs the assigned position simultaneously, cart limit switch normally open the contact closure, two closure signals transmit to electric room PLC system through the external electric signal cable of PLC system respectively, electric room PLC system control the illumination is opened to the light; or the two-position key switch turns off the illumination, and the illuminating lamp turns off the illumination. The utility model discloses effectively solved the defect that needs operating personnel manual to open or close the light, can realize the automatic purpose of opening or closing of cart counterpoint illumination.
Description
Technical Field
The utility model belongs to the technical field of bridge crane cart illumination, a bridge crane cart illumination control device that counterpoints is related to.
Background
The bridge crane is a hoisting device which is arranged above factories, warehouses and stockyards to hoist materials. The bridge crane can fully utilize the space below the bridge frame to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.
The bridge crane adds the steel scrap in the converter smelting process in the metallurgical steel plant, add the molten iron and go into converter and handling the in-process such as conticaster on the molten steel jar, the accurate counterpoint of hoist must all be guaranteed to the primary condition, 1, before bridge crane adds the steel scrap and the handling molten iron goes into the converter, the steel scrap and the molten iron of handling must accurate counterpoint the good converter fire door of converter, if the counterpoint inaccurate probably leads to the steel scrap and the molten iron to add the converter outside, cause the wasting of resources, increase manufacturing cost, still probably induce the personal and equipment incident. 2. When a bridge crane is used for hoisting a continuous casting machine on a molten steel tank, the hoisted molten steel tank must be accurately aligned with a ladle turret of the continuous casting machine, if the alignment is not accurate, deviation exists, the production is influenced, and serious equipment safety accidents can be caused. Therefore, the overhead crane must align the hoisted objects and the working points to one hundred percent accurately during the operations.
Experienced bridge crane operating personnel all can select bridge crane cart end beam and factory building crossbeam, stand as the reference object, carry out accurate counterpoint. The technology in use at present is that an illuminating lamp for operators to observe and confirm is arranged on an end beam of a cart, which is one of methods for effectively solving the problem that the operators confirm the position of the cart through illumination observation at night. The prior art of the method has the defects that the illuminating lamp for the observation and confirmation of the operator must be manually turned on or off by the operator, however, in busy operation, the operator needs to complete the safety operation of up to 6 control switches and continuously and frequently turn on or off the illuminating lamp, and the workload of the operator is increased invisibly. In the process of frequently turning on or off the illumination lamp, other switches may be operated by mistake to induce a safety accident.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a bridge crane cart alignment lighting control device which effectively solves the defect that an operator needs to manually open or close a lighting lamp and can realize the automatic opening or closing of cart alignment lighting.
The purpose of the utility model is realized by adopting the following technical scheme:
a crane alignment lighting control device of a bridge crane comprises a circuit breaker, a two-position key switch, a trolley limit switch, a crane limit switch, an external electric signal cable of a PLC system, an electric room PLC system and a lighting lamp which are sequentially connected to form a loop, wherein when the trolley reaches a specified position, a normally open contact of the trolley limit switch is closed, and meanwhile, when the trolley reaches the specified position, the normally open contact of the trolley limit switch is closed, two closing signals are respectively transmitted to the electric room PLC system through the external electric signal cable of the PLC system, and the electric room PLC system controls the lighting lamp to open the lighting lamp;
or the two-position key switch turns off the illumination, and the illuminating lamp turns off the illumination.
In one embodiment, the trolley limit switch is arranged on the trolley.
In one embodiment, the cart limit switch is disposed on the cart.
In one embodiment, the trolley limit switch moves along with the trolley, a crank of the trolley limit switch collides with a trolley touch component, and a normally open contact of the trolley limit switch is closed;
the cart limit switch moves along with the cart, a crank of the cart limit switch collides with a cart touch component, and a normally open contact of the cart limit switch is closed;
the two closed signals are transmitted to the PLC system of the electric room through an external electric signal cable of the PLC system.
In one embodiment, the trolley touching member is mounted on the bridge crane girder vertically above the working point to be aligned accurately.
In one embodiment, the cart touch member is mounted on the steel structure of the plant supporting the bridge crane to travel vertically above the working point to be precisely aligned.
In one embodiment, the lighting lamp is an energy-saving lighting lamp.
The beneficial effects of the utility model reside in that: 1. when the lighting state needs to be started, a two-position key switch installed on an operation room control console is turned on to start the lighting state, when the normally open contacts of the trolley and the cart limit switch are closed simultaneously and meet the conditions, the PLC system sends an instruction to supply the alignment lighting lamp to be automatically started, and when the trolley, the cart limit switch and the PLC system are not met, the alignment lighting lamp is not automatically started.
2. When the lighting state is not required to be started, the two-position key switch installed on the control console of the operation room is turned to the lighting state to be closed, and even if the normally open contacts of the limit switches of the trolley and the cart are closed at the same time, the PLC system can not meet the conditions, and the alignment lighting lamp can not be automatically started.
Through implementing the utility model discloses behind the device, effectively solved the defect that needs operating personnel manual to open or close the light, can realize the automatic purpose of opening or closing of cart counterpoint illumination.
Drawings
Fig. 1 is a schematic diagram of a control circuit of the bridge crane cart alignment lighting control device of the present invention;
FIG. 2 is a schematic view of a limit switch and a trolley touching member mounted on the trolley of the present invention;
fig. 3 is a schematic view of the limit switch and cart touch member installed on the cart according to the present invention;
FIG. 4 is a schematic view of a bridge crane;
wherein: 1-a circuit breaker; 2-two-position key switch; 3-a trolley limit switch; 4-cart limit switch; 5-external electrical signal cables of the PLC system; 6-electrical room PLC system; 7-a lighting lamp; 8-a trolley touching member; 9-a girder of the bridge crane; 10-cart touch member; 11-supporting the factory building steel structure of the traveling of the bridge crane; 12-bridge crane cab.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1 to 4, a crane alignment lighting control device for a bridge crane comprises a circuit breaker 1, a two-position key switch 2, a trolley limit switch 3, a crane limit switch 4, an external electrical signal cable 5 of a PLC system, an electrical room PLC system 6 and a lighting lamp 7 which are sequentially connected to form a loop, preferably, the circuit breaker 1 is closed, the two-position key switch 2 is opened for lighting, when the trolley reaches a specified position, a normally open contact of the trolley limit switch 3 is closed, and when the trolley reaches the specified position, the normally open contact of the trolley limit switch 4 is closed, two closed signals are respectively transmitted to the electrical room PLC system 6 through the external electrical signal cable 5 of the PLC system, and the electrical room PLC system 6 controls the lighting lamp 7 to open for lighting; or the two-position key 2 switch turns off the illumination, and the illuminating lamp turns off the illumination.
The novel control device for alignment illumination of the cart can be automatically controlled by an operator by manually closing or opening the device at one time. Firstly, a two-position key switch is installed on an operation room console, the switch only needs to be in two states of 'lighting on' and 'lighting off', and in addition, the two limit signals of the proximity switch limit normally open contacts of the large and small car running mechanisms of the bridge crane which are closed simultaneously are interlocked with a crane lighting control PLC system program to realize automatic control lighting.
1. When the lighting state needs to be started, the two-position key switch 2 installed on the control console of the operation room is turned on to start the lighting state, when the normally open contacts of the trolley limit switch 3 and the trolley limit switch 10 are closed simultaneously and meet the requirements, the PLC system sends an instruction to supply the alignment lighting lamp to be automatically started, and when the limit switch and the PLC system are not met, the alignment lighting lamp is not automatically started.
2. When the lighting state is not required to be started, the two-position key switch 2 installed on the control console of the operation room is turned to the lighting state, and even if the normally open contacts of the trolley limit switch 3 and the cart limit switch 10 are closed simultaneously, the PLC system can not meet the conditions, and the alignment lighting lamp can not be automatically started.
Through implementing the utility model discloses behind the device, effectively solved the defect that needs operating personnel manual to open or close lighting apparatus, can realize the automatic purpose of opening or closing of cart counterpoint illumination.
In this embodiment, the carriage limit switch 3 is disposed on the carriage. In particular, the trolley limiting switch 3 can move along with the trolley by being arranged on one side below the trolley, and the trolley touch component 8 is arranged on a girder 9 of the bridge crane vertically above a working point to be aligned accurately.
In this embodiment, the trolley limit switch 3 moves along with the trolley, when the trolley runs to the position of the trolley touch component 10, the crank of the trolley limit switch 3 arranged below the end beam of the bridge crane just touches the trolley touch component 8, and the normally open contact of the trolley limit switch 3 is closed.
In this embodiment, the cart limit switch 4 is provided on the cart. Particularly, the device is arranged on one side below an end beam of the bridge crane, and the cart limit switch 4 can move along with the cart through the arrangement.
In the present embodiment, the cart touching member 10 is installed on the factory steel structure 11 that supports the traveling of the bridge crane vertically above the working point to be precisely aligned.
In the embodiment, the cart limit switch 4 moves along with the cart, when the cart runs to the cart touch component 10, the crank of the cart limit switch 4 arranged below the end beam of the bridge crane just touches the cart touch component 10, and the normally open contact of the cart limit switch 4 is closed;
and the closing signals of the normally open contacts of the trolley and the trolley are transmitted to an electrical room PLC system 6 through an external electrical signal cable 5 of the PLC system.
The utility model discloses the theory of operation: the using process is as follows: for example, when a ladle of molten steel is required to be hoisted to a casting machine, firstly the circuit breaker 1 is closed, and simultaneously the two-position key switch 2 arranged on the control console of the operation room is turned to be in an on-illumination state, the cart and the trolley gradually approach to the working point of the casting machine, when the trolley approaches to the vertical working point of the casting machine, the crank of the trolley limit switch 3 arranged on one side below the trolley of the bridge crane just touches the trolley touch component 8 which is arranged on the girder 9 of the bridge crane vertically above the working point to be aligned with the casting machine and collides with the trolley limit switch 3, under the touch action, the crank of the trolley limit switch 3 acts, the normally open contact of the trolley limit switch 3 is closed, meanwhile, when the cart also runs to the vertical working point which is close to the casting machine, the crank of the cart limit switch 4 arranged on one side below the end girder of the bridge crane, the cart touch component 10 on the workshop steel structure 11 supporting the bridge crane to walk is just touched, and under the touch action, the crank of the cart limit switch 4 acts and the normally open contact of the cart limit switch 4 is closed. At the moment, the two signals are directly input into the electrical room PLC system 6 through the external electrical signal cable 5 of the PLC system and are linked with the cart alignment lighting control condition program for control, the lighting lamp 7 is automatically turned on under the condition that all conditions are met, an operator can clearly see the position of the cart in the operating room, and the powerful guarantee is provided for safe production. After the work task is finished, the operator only needs to drive the cart or the trolley away from the area, the whole electric control loop cannot form a loop necessarily due to the fact that the normally open contact of the limit switch is disconnected, the PLC system program does not meet the conditions, and the illuminating lamp 7 can be automatically turned off. Therefore, the aim of automatically turning on or off the alignment illumination of the cart is fulfilled, and the effects of energy conservation and safety are achieved. Of course, under the condition of sufficient light in the daytime, the operator only needs to turn on the two-position key switch 2 installed on the console to a state that the lighting is not required to be turned on.
The features of the invention claimed in the claims and/or in the description may be combined, but the combination is not limited to the combination defined in the claims by the reference. The technical solution obtained by combining the technical features in the claims and/or the specification is also the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (7)
1. A crane alignment lighting control device of a bridge crane is characterized by comprising a circuit breaker (1), a two-position key switch (2), a trolley limit switch (3), a crane limit switch (4), an external electric signal cable (5) of a PLC system, an electric room PLC system (6) and a lighting lamp (7) which are sequentially connected to form a loop, the circuit breaker (1) is closed, the two-position key switch (2) is turned on for illumination, when the trolley reaches a designated position, the normally open contact of the trolley limit switch (3) is closed, meanwhile, when the cart reaches a designated position, the normally open contact of the cart limit switch (4) is closed, two closed signals are respectively transmitted to the electrical room PLC system (6) through the external electrical signal cable (5) of the PLC system, the electrical room PLC system (6) controls the lighting lamp (7) to start lighting;
or the two-position key switch (2) turns off the illumination, and the illuminating lamp (7) turns off the illumination.
2. The bridge crane cart alignment lighting control device according to claim 1, wherein the trolley limit switch (3) is arranged on the trolley.
3. A crane truck alignment lighting control device as claimed in claim 2, wherein said truck limit switch (4) is arranged on said truck.
4. The bridge crane cart alignment lighting control device according to claim 3, wherein the trolley limit switch (3) moves along with the trolley, a crank of the trolley limit switch (3) collides with the trolley touch component (8), and a normally open contact of the trolley limit switch (3) is closed;
the cart limit switch (4) moves along with the cart, a crank of the cart limit switch (4) collides with a cart touch component (10), and a normally open contact of the cart limit switch (4) is closed;
the two closure signals are transmitted to an electrical room PLC system (6) by means of an external electrical signal cable (5) of said PLC system.
5. A crane bridge alignment lighting control device as claimed in claim 4, wherein the trolley touching member (8) is installed on the crane bridge (9) vertically above the working point to be aligned accurately.
6. A bridge crane truck alignment lighting control device as claimed in claim 4, characterized in that the truck touch member (10) is installed on the bridge crane walking supporting factory steel structure (11) vertically above the working point to be aligned accurately.
7. The bridge crane cart alignment lighting control device according to claim 1, wherein the lighting lamp (7) is an energy-saving lighting lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021187493.1U CN212863888U (en) | 2020-06-23 | 2020-06-23 | Bridge crane cart alignment lighting control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021187493.1U CN212863888U (en) | 2020-06-23 | 2020-06-23 | Bridge crane cart alignment lighting control device |
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| Publication Number | Publication Date |
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| CN212863888U true CN212863888U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021187493.1U Active CN212863888U (en) | 2020-06-23 | 2020-06-23 | Bridge crane cart alignment lighting control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113709947A (en) * | 2021-09-08 | 2021-11-26 | 上海振华重工(集团)股份有限公司 | Projection lamp control method and system |
-
2020
- 2020-06-23 CN CN202021187493.1U patent/CN212863888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113709947A (en) * | 2021-09-08 | 2021-11-26 | 上海振华重工(集团)股份有限公司 | Projection lamp control method and system |
| CN113709947B (en) * | 2021-09-08 | 2024-03-01 | 上海振华重工(集团)股份有限公司 | Light projector control method and system |
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