CN200946071Y

CN200946071Y - Collision preventing system between two tyre hoisters on narrow adjacent course

Info

Publication number: CN200946071Y
Application number: CN 200620042896
Authority: CN
Inventors: 施卫国
Original assignee: Shanghai Zhenhua Port Machinery Co Ltd
Current assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Priority date: 2006-06-14
Filing date: 2006-06-14
Publication date: 2007-09-12
Anticipated expiration: 2016-06-14

Abstract

A collision preventing system between two tyre hoisters on narrow adjacent course is a safety device to prevent two tyre hoisters on narrow adjacent course from collision, comprising a laser scanner arranged at one end of the big beam of the tyre hoisters. The laser scanner monitors and measures the space between the two tyre hoisters on narrow adjacent course; when the space is larger than, or equal to the alarming space, or equal to the emergency-stop space, an ''normal'' signal, or an ''alarming'' signal, or an ''emergency stop'' signal can be respectively output, the signal can be input into a programmable logic controller through communication lines and DC 24V module; the programmable logic controller can send running signals, ''normal running'' or ''decelerating running'', '' emergency stop'' to the transducer used to control the motors of the tyre hoisters to give the tyre hoisters corresponding normal deceleration or emergency-top running operation. With the system, the serious consequence of collision caused by too narrow space between the two tyre hoisters can not be caused to reduce the unsafe accidents of devices and human bodies and enhance productivity.

Description

Collision avoidance system on the narrow adjacent runway between two tyre cranes

Technical field

The utility model relates in the harbour machinery technology of anticollision between the tyre crane, refers in particular on a kind of narrow adjacent runway the collision avoidance system between two tyre cranes.

Background technology

Along with container wharf towards automation, the fast development of maximization direction, each harbour wishes to issue and put on display a kind of higher operating speed that has not increasing pier storage yard construction cost prerequisite, the container handling crane of higher heap layer is to excavate the Occupation coefficient in stockyard to greatest extent.Therefore, many tyre cranes port that coexists, operation simultaneously is to improve one of effective measures of stockyard Occupation coefficient now.In addition,, the stockyard of various special terminals occurred, even only 2.45 meters of the runway spacings that two adjacent tires hang occurred, and the height of the tyre crane that uses is also improving along with the needs of container handling now.

When moving in opposite directions with about 120 meters/minute for two adjacent tyre cranes, its safety must consider fully, and the anticollision measure on the especially above-mentioned narrow adjacent runway of mentioning between two tyre cranes seems even more important.

The utility model content

The purpose of this utility model is in order to address the above problem, and a kind of collision avoidance system between two tyre cranes installed and use on all a kind of easily narrow adjacent runway is provided.

The purpose of this utility model is achieved in that

Collision avoidance system on a kind of narrow adjacent runway between two tyre cranes, described tyre crane is provided with an electric room, and described collision avoidance system comprises:

One end of the nearly runway of crossbeam of described tyre crane is equipped with a laser scanner, the spacing of two tyre cranes on the described adjacent runway of this laser scanner control survey, and export the signal of this spacing;

The mouth of described laser scanner is connected with an end of a connection;

The other end of described connection is connected with a direct current 24V module in placing described electric room, and described direct current 24V module is an interface;

The mouth of described direct current 24V load module is connected with Programmable Logic Controller in being arranged at described electric room, makes described Programmable Logic Controller send operating instruction according to the signal of described laser scanner output;

The mouth of described Programmable Logic Controller connects with several frequency converters of controlling different motor running velocitys in being arranged at described electric room, the mouth of several frequency converters is connected with the cargo motor of several tyre cranes respectively, and the cargo motor of described several tyre cranes carries out corresponding operation according to the operating instruction that described Programmable Logic Controller sends.

Effect of the present utility model:

Collision avoidance system on the narrow adjacent runway of the present utility model between two tyre cranes can be judged the movement tendency between two tyre cranes in service automatically, make the decision that moves on or halt, and can not cause producing the serious consequence of collision because of the hypotelorism between two tyre cranes, can reduce the unsafe accident of equipment and life and enhance productivity.

For further specifying above-mentioned purpose of the present utility model, constructional feature and effect, the utility model is described in detail below with reference to accompanying drawing.

Description of drawings

Fig. 1 is the scheme drawing of tyre crane on narrow adjacent runway that collision avoidance system of the present utility model is installed.

Fig. 2 is the electric functional block diagram of collision avoidance system of the present utility model.

Fig. 3 is the scheme drawing that 180 degree laser scanners of the present utility model are provided with alarm region.

The specific embodiment

Below, the embodiment to the collision avoidance system between two tyre cranes on the narrow adjacent runway of the present utility model is elaborated in conjunction with the accompanying drawings.

Fig. 1 is the scheme drawing of tyre crane on narrow adjacent runway that collision avoidance system of the present utility model is installed; Fig. 2 is the electric functional block diagram of collision avoidance system of the present utility model; Fig. 3 is the scheme drawing that 180 degree laser scanners of the present utility model are provided with alarm region; Fig. 4 is the interconnecting wiring diagram of 180 degree laser scanners.

As shown in Figure 1.When two

tyre cranes

20,30 go in the same direction, for preventing mutual collision, end (being an end of nearly tyre crane 30) at the nearly runway of the crossbeam 21 of tyre crane 20 is equipped with a laser scanner 31, the spacing of two

tyre cranes

20,30 is exported " normally ", " warning ", " tightly stopping " signal respectively according to different spacings on the described adjacent runway of these laser scanner 31 control surveies.

Equally, an end of the crossbeam of tyre crane 30 (or tyre crane among Fig. 3 40) is also installed laser scanner 31, at this embodiment for tyre crane 20.

Each tyre crane 20 (or 30,40) all has an electric room 22.

As shown in Figure 2, above-mentioned laser scanner 31 is connected with a direct current 24V module (hereinafter to be referred as DC 24V load module) 41 in placing electric room 22 by connection 51, and DC 24V load module 41 is to use as interface.The mouth of DC 24V load module 41 is connected with Programmable Logic Controller (hereinafter to be referred as PLC) 61 in being arranged at electric room 22, the mouth of PLC 61 is connected with several frequency converters 71,72,73,74 in being arranged at electric room 22, and the mouth of several frequency converters 71,72,73,74 is connected with the cargo motor 1,2,3,4 (81M1,82M2,83M3,84M4) of several tyre cranes 20 respectively.Promptly, the distance signal of two

tyre cranes

20,30 is input among the PLC 61 by connection 51 and interface DC 24V load module 41 on the described adjacent runway of laser scanner 31 control surveies, by PLC 61 according to " normally " or " warning " of laser scanner 31 output, " tightly stopping " signal sends " normal operation " or " running slowly ", " tight stoppage in transit is gone " respectively to the frequency converter 71,72,73,74 of control tyre crane 20 running velocitys instruction.

Describe on the narrow adjacent runway of the present utility model the working process of the collision avoidance system between two tyre cranes below in detail.

As shown in Figure 3, (or one stop another operation process when tyre crane 20 and two tyre cranes 30,40 go in the same direction on narrow adjacent runway, be summary, below all be called: two tyre cranes that go in the same direction), be installed on laser scanner 31 distance between control survey tyre crane 20 and two tyre cranes 30,40 at any time of nearly runway one end of the crossbeam 21 of tyre crane 20.

If the spacing of above-mentioned two tyre cranes 20 that go in the same direction and 30 (or 40) is greater than warning spacing d1 the time, laser scanner 31 sends " normally " signal, and tyre crane 20 is in " normally moving " state; When if above-mentioned spacing arrives warning spacing d1, promptly enter warning zone 61 shown in Figure 3, laser scanner 31 sends " warning " signal, should " warning " signal be sent to the interior DC 24V load module 41 in electric room 22 by connection 51, deliver to PLC 61 by DC 24V load module 41 again, this PLC 61 sends the instruction that makes frequency converter 71,72,73,74 " running slowly ", make speed slowed down by the cargo motor 1,2,3,4 of the tyre crane 20 of frequency converter 71,72,73,74 controls, tyre crane 20 is in " running slowly " state.Warning spacing d1 is made as 1.7 meters in the present embodiment.

If the spacing of two tyre cranes 20 of going in the same direction after the above-mentioned deceleration and 30 (or 40) is also reducing, arrive when tightly stopping spacing d2, promptly enter the zone 62 of tightly stopping shown in Figure 3, laser scanner 31 sends " tightly stopping " signal, should " tightly stopping " signal be sent to DC 24V load module 41 in the electric room 22 by connection 51, deliver to PLC 61 by DC 24V load module 41 again, this PLC 61 sends and makes frequency converter 71,72,73, the instruction of 74 " the tight row of stopping transport ", make speed be subjected to frequency converter 71,72,73, the cargo motor 1 of the tyre crane 20 of 74 controls, 2,3,4 is out of service, to avoid the generation of life and industrial accident.Tightly stop spacing d2 in the present embodiment and be made as 1.2 meters.

As shown in Figure 2, the output signal of PLC 61 also places the annunciator 91 in the driver's cab 90 to be connected with one, when described PLC 61 sent the instruction of " running slowly " or " the tight row of stopping transport ", above-mentioned annunciator 91 sent the sound and light alarm signal, keeps a close eye on the operation trend of tyre crane 20 to warn tyre crane 20 drivers.The technology of above-mentioned combined aural and visual alarm 91 is prior aries, omits at this and describes.

Laser scanner 31 uses the laser scanner of 180 degree of SICK among the embodiment of the present utility model, and the model of employing is LMS221-30206.

The model that DC 24V load module 41 adopts in the present embodiment is IC200MDL640.

Connection 51 uses five core connections in the present embodiment, and the model of employing is 4PX1.25sq.

PLC 61 adopts day signal processor of intrinsic safety river company in the present embodiment.

When native system begins laser scanner 31 is installed, need there be the computer of the special software that scanner is installed to be used to set the working data (this technology is not described in detail at this because of not being the feature that the utility model is protected) of scanner 31.

The laser scanner 31 of 180 degree that the utility model uses, finding range is 80 meters, can send data by per 1.25 degree in 180 degree scannings.

After using system of the present utility model, go in the same direction (or one stop, another operation through) as two tyre cranes, as keeping level each other, do not enter two zones that laser scanner is set, they just can pass through at full speed.As long as wherein one has the trend that will knock, laser scanner will be warned the driver, and as can't in time correcting, thereby system will tightly stop the car to car impact of taking refuge automatically.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.

Claims

1, the collision avoidance system between two tyre cranes on a kind of narrow adjacent runway, described tyre crane is provided with an electric room, it is characterized in that described collision avoidance system comprises:

The mouth of described laser scanner is connected with an end of a connection;

2, the collision avoidance system between two tyre cranes on the narrow adjacent runway as claimed in claim 1 is characterized in that:

Described laser scanner uses the laser scanner of 180 degree of SICK.

3, the collision avoidance system between two tyre cranes on the narrow adjacent runway as claimed in claim 1 is characterized in that:

Described connection uses five core connections.

4, the collision avoidance system between two tyre cranes on the narrow adjacent runway as claimed in claim 1 is characterized in that:

The output of described Programmable Logic Controller also places the annunciator in the driver's cab to be connected with one, and when described Programmable Logic Controller sent alarm command, above-mentioned annunciator sent the sound and light alarm signal.