CN217417956U

CN217417956U - Anti-collision control system for upper and lower layer cranes

Info

Publication number: CN217417956U
Application number: CN202221575511.2U
Authority: CN
Inventors: 纪帅朋; 单迎歌; 王慧玲; 张天祺; 王宏; 韩洋洋; 郝杰; 李千威; 李和青
Original assignee: Henan Weihua Heavy Machinery Co Ltd
Current assignee: Henan Weihua Heavy Machinery Co Ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-13
Anticipated expiration: 2032-06-23

Abstract

The utility model provides an anticollision control system for upper and lower floor's hoist, the scanning face that sends through two 2D laser scanners, can regard as the anticollision region of upper crane and lower floor's hoist respectively, promptly when upper 2D laser scanner detects lower floor's hoist, or when lower floor's 2D laser scanner detected upper crane, corresponding 2D laser scanner sends early warning signal to the PLC that corresponds, then interact through radio signal by the PLC of two hoists, finally by the PLC of upper crane according to the load condition of upper crane and the height that article were hoisted, control the ascending and descending of upper crane hoisting mechanism and the speed reduction of cart running gear and stop, thereby avoid two hoist possibility of bumping.

Description

Anti-collision control system for upper and lower layer cranes

Technical Field

The utility model belongs to the technical field of the crane safe operation technique and specifically relates to an anticollision control system for upper and lower floor's hoist is related to.

Background

As is known, in order to improve the work efficiency of a workshop, a plurality of enterprises can arrange an upper layer crane and a lower layer crane in the workshop, wherein the two layers of cranes are operated in a cross mode, but when the two cranes are operated, if an object lifted by the upper layer crane is not lifted in place, the two layers of cranes are easy to collide with the lower layer crane, so that serious production accidents are caused, and the life safety and the economy of workers are damaged; the traditional method is that a manual observation method is adopted, when the upper-layer crane and the lower-layer crane are close to each other, workers manually control the operation of the cranes on the ground so as to avoid the possibility of collision of the two cranes, but the manual observation is easy to leak, and if the workers do not react timely, the collision of the cranes can not be prevented;

chinese patent (CN 201420707498.0) discloses an upper-layer and lower-layer travelling crane collision avoidance detection system, which is only provided with a laser range finder on an upper-layer travelling crane, but because the upper-layer and lower-layer travelling cranes can move in work and emit linear laser beams, the laser range finder in the system has poor measurement effect, so that the probability of collision between the two travelling cranes is still high;

therefore, in summary, there is a need in the market for a crane operation control system that can effectively avoid collision between two cranes.

Disclosure of Invention

In order to overcome the not enough among the background art, the utility model discloses an anticollision control system for upper and lower floor's hoist.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an anti-collision control system for an upper-layer crane and a lower-layer crane comprises an upper-layer 2D laser scanner and a lower-layer 2D laser scanner; the upper 2D laser scanner and the lower 2D laser scanner are respectively installed at the bottom of a cart cross beam of the upper crane and the top of the cart cross beam of the lower crane, wherein a laser emission end of the upper 2D laser scanner faces downwards vertically, a laser emission end of the lower 2D laser scanner faces upwards vertically, and scanning surfaces sent by the upper 2D laser scanner and the lower 2D laser scanner are respectively vertical to the cart cross beam of the corresponding crane;

the signal output part of the upper 2D laser scanner is correspondingly connected with the PLC of the upper crane, the signal output part of the lower 2D laser scanner is correspondingly connected with the PLC of the lower crane, and the PLC of the upper crane and the PLC of the lower crane are transmitted through wireless signals.

Preferably, be equipped with upper intermediate relay between the PLC of upper 2D laser scanner and upper crane, wherein upper 2D laser scanner's signal output part corresponds with upper intermediate relay's induction coil and is connected, and upper intermediate relay's normally open contact corresponds with upper crane's PLC signal input terminal and is connected.

Preferably, be equipped with lower floor's intermediate relay between lower floor's 2D laser scanner and the PLC of lower floor's hoist, wherein lower floor's 2D laser scanner's signal output part corresponds with lower floor's intermediate relay's induction coil and is connected, and lower floor's intermediate relay's normally open contact corresponds with the PLC signal input terminal of lower floor's hoist and is connected.

Preferably, the upper 2D laser scanner is located at the head end of the upper crane cart beam, and the lower 2D laser scanner is located at the tail end of the lower crane cart beam.

Preferably, the scanning surfaces emitted by the upper 2D laser scanner and the lower 2D laser scanner are fan-shaped, and the emission angle of the scanning surfaces is 80 to 100 °.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses an anticollision control system for upper and lower floor's hoist, the scanning face that sends through two 2D laser scanners, can regard as the anticollision region of upper crane and lower floor's hoist respectively, promptly when upper 2D laser scanner detects lower floor's hoist, perhaps when lower floor's 2D laser scanner detected upper crane, corresponding 2D laser scanner sent early warning signal to corresponding PLC, then the PLC of two hoists through radio signal interact, finally by the PLC of upper crane according to the load condition of upper crane and the height that article were hoisted, control the ascending and descending of upper crane hoisting mechanism and the speed reduction of cart running gear to stop, thereby avoid the possibility that two hoists bump;

because 2D laser scanner is the scanning of specific area to can accurately detect the operating position of hoist, and directly obtain the nearer result of two hoist distances, thereby guarantee that the anticollision between two hoists judges the accuracy, and then effectively avoid two hoists to bump.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the circuit arrangement of the upper intermediate relay;

fig. 3 is a schematic diagram of the circuit arrangement of the lower intermediate relay.

In the figure: 1. an upper 2D laser scanner; 2. a lower 2D laser scanner; 3. a cart cross beam of the upper layer crane; 4. a cart cross beam of the lower layer crane; 5. PLC of the upper layer crane; 6. PLC of the lower layer crane; 7. an upper intermediate relay; 8. and a lower intermediate relay.

Detailed Description

In the following description, the technical solution of the present invention will be described with reference to the accompanying drawings in the embodiment of the present invention, it should be understood that, if there are the indicated positions or positional relationships such as "upper", "lower", "front", "rear", "left", "right", etc., it only corresponds to the drawings of the present invention, and for convenience of description, it is not intended to indicate or imply that the indicated device or element must have a specific position:

a crash control system for upper and lower cranes as described in connection with fig. 1-3, comprising an upper 2D laser scanner 1 and a lower 2D laser scanner 2; the upper 2D laser scanner 1 and the lower 2D laser scanner 2 are respectively installed at the bottom of a cart beam 3 of an upper crane and at the top of a cart beam 4 of a lower crane, and can be respectively used as collision avoidance areas of the upper crane and the lower crane by scanning surfaces emitted by the two 2D laser scanners, when the upper 2D laser scanner 1 detects the lower crane or the lower 2D laser scanner 2 detects the upper crane, which means that the distance between the upper crane and the lower crane is short, the corresponding 2D laser scanner sends an early warning signal to the corresponding PLC, particularly, the upper 2D laser scanner 1 is located at the head end of the cart beam 3 of the upper crane, and the lower 2D laser scanner 2 is located at the tail end of the cart beam 4 of the lower crane, by alternately arranging the two 2D laser scanners, the detection results of the two 2D laser scanners can be ensured to be relatively independent, so that the result that the distance between the two cranes is too close to each other is further ensured to be accurate;

wherein the laser emission end of the upper 2D laser scanner 1 is vertically directed downward, the laser emission end of the lower 2D laser scanner 2 is vertically directed upward, and the scanning surfaces emitted by the upper 2D laser scanner 1 and the lower 2D laser scanner 2 are respectively perpendicular to the cart beam corresponding to the crane, i.e., the scanning area of the upper 2D laser scanner 1 includes the current position of the upper crane and the positions at a certain distance in front of and behind the upper crane, so that the lower crane can be sensed by the 2D laser scanner no matter the lower crane approaches the scanning area from the front or the rear of the upper crane, and in addition, the lower 2D laser scanner 2 is the same; according to the requirement, the scanning surfaces emitted by the upper 2D laser scanner 1 and the lower 2D laser scanner 2 are fan-shaped, and the emission angle of the scanning surfaces is 80-100 degrees, wherein the optimal angle is 90 degrees;

the signal output end of the upper 2D laser scanner 1 is correspondingly connected with a PLC5 of the upper crane, the signal output end of the lower 2D laser scanner 2 is correspondingly connected with a PLC6 of the lower crane, and the PLC5 of the upper layer crane and the PLC6 of the lower layer crane are transmitted through wireless signals, because the distance between the upper layer crane and the lower layer crane is larger, the use of wired transmission is more troublesome, the cost of electric wires can be saved through wireless signal transmission, and the use is convenient, in addition, after a 2D laser scanner sends out an early warning signal to the corresponding PLC of the crane, the PLCs of the two cranes carry out interaction through wireless signals, and finally the PLC5 of the upper-layer crane controls the ascending and descending of a hoisting mechanism of the upper-layer crane and the deceleration and stop of a cart running mechanism according to the load state of the upper-layer crane and the hoisting height of an article, so that the possibility of collision of the two cranes is avoided; in addition, an upper intermediate relay 7 is arranged between the upper 2D laser scanner 1 and the PLC5 of the upper crane, wherein a signal output end of the upper 2D laser scanner 1 is correspondingly connected with an induction coil of the upper intermediate relay 7, and a normally open contact of the upper intermediate relay 7 is correspondingly connected with a PLC5 signal input terminal of the upper crane; as required, be equipped with lower floor's auxiliary relay 8 between lower floor's 2D laser scanner 2 and lower floor's hoist PLC6, wherein lower floor's 2D laser scanner 2's signal output part corresponds with lower floor's auxiliary relay 8's induction coil and is connected, lower floor's auxiliary relay 8 normally open contact corresponds with lower floor's hoist PLC6 signal input terminal and is connected, through setting up upper auxiliary relay 7 or lower floor's auxiliary relay 8, can turn into simple 0/1 switching signal with 2D laser scanner's early warning signal, can let PLC better must handle.

The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. The utility model provides a crashproof control system for upper and lower floor's hoist which characterized by: comprises an upper 2D laser scanner (1) and a lower 2D laser scanner (2); the upper-layer 2D laser scanner (1) and the lower-layer 2D laser scanner (2) are respectively installed at the bottom of a cart beam (3) of an upper-layer crane and the top of a cart beam (4) of a lower-layer crane, a laser emitting end of the upper-layer 2D laser scanner (1) faces downwards vertically, a laser emitting end of the lower-layer 2D laser scanner (2) faces upwards vertically, and 2D laser scanning surfaces emitted by the upper-layer 2D laser scanner (1) and the lower-layer 2D laser scanner (2) are respectively perpendicular to the cart beam corresponding to the crane;

the signal output part of the upper 2D laser scanner (1) is correspondingly connected with the PLC (5) of the upper crane, the signal output part of the lower 2D laser scanner (2) is correspondingly connected with the PLC (6) of the lower crane, and the PLC (5) of the upper crane and the PLC (6) of the lower crane are transmitted through wireless signals.

2. The crash-proof control system for upper and lower deck cranes as claimed in claim 1, wherein: be equipped with upper intermediate relay (7) between upper 2D laser scanner (1) and upper crane's PLC (5), wherein the signal output part of upper 2D laser scanner (1) corresponds with the induction coil of upper intermediate relay (7) and is connected, and the normally open contact of upper intermediate relay (7) corresponds with PLC (5) signal input terminal of upper crane and is connected.

3. The crash-proof control system for upper and lower deck cranes as claimed in claim 1, wherein: be equipped with lower floor's auxiliary relay (8) between lower floor's 2D laser scanner (2) and lower floor's PLC (6), wherein the signal output part of lower floor's 2D laser scanner (2) corresponds with the induction coil of lower floor's auxiliary relay (8) and is connected, and the normally open contact of lower floor's auxiliary relay (8) corresponds with PLC (6) signal input terminal of lower floor's hoist and is connected.

4. The crash-proof control system for upper and lower deck cranes as set forth in claim 1, wherein: the upper 2D laser scanner (1) is located at the head end of a cart beam (3) of the upper-layer crane, and the lower 2D laser scanner (2) is located at the tail end of a cart beam (4) of the lower-layer crane.

5. The crash-proof control system for upper and lower deck cranes as set forth in claim 1, wherein: the scanning surfaces emitted by the upper 2D laser scanner (1) and the lower 2D laser scanner (2) are fan-shaped, and the emission angle of the scanning surfaces is 80-100 degrees.