CN213445852U

CN213445852U - Bridge type hoisting machinery hoisting operation positioning anti-collision protection system

Info

Publication number: CN213445852U
Application number: CN202021731223.2U
Authority: CN
Inventors: 吕刚峰
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-06-15
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a bridge crane machinery hoist and mount operation location anticollision protection system, this system is through setting up chip reading device and location chip, confirm the position at cart place, confirm the position at dolly place through setting up laser detection device and reflecting plate, judge whether the dolly moves forbidden region through setting up signal processing control module, in time park when moving the regional border of forbidden of dolly to avoid the obstacle blind area, avoid the incident emergence of hanging thing striking barrier, lifting means operation safety level. Meanwhile, the regional classification can be carried out, the regional multi-level control of the running track of the trolley can be realized, and the running safety problem of the hoisting machinery in a complex working site can be effectively solved.

Description

Bridge type hoisting machinery hoisting operation positioning anti-collision protection system

Technical Field

The utility model relates to a safety coefficient, concretely relates to bridge type hoisting machinery hoist and mount operation location anticollision protection system.

Background

Hoisting machinery is widely applied to various fields, particularly in the industries of metallurgy, manufacturing and the like, is an indispensable important tool and is directly related to production efficiency and safety. At present, according to the safety protection design standard of bridge type hoisting machinery, limit position limiters are installed at the operation limit positions of a cart or a trolley on all rail hoisting machinery, and each limiter consists of a limit switch, a safety ruler or an infrared detection switch and a reflecting plate. Namely, the hoisting operation working area can be carried out in the square areas contained in the limit stroke of the crane and the limit stroke of the trolley of the hoisting machinery, and the operation track is not limited. However, the field environment is often complex, and in the process of normally using the bridge crane, various obstacles exist, so that the crane has a dead zone in the limit operation area, and a crane hook or a crane object cannot pass over the obstacles and must be bypassed. If not managed, the safety accident that the hanging object collides the barrier is very easy to happen.

The infrared flaw detection line of the bar factory comprises a shot blasting machine, an infrared combined flaw detection chamber and a packaging machine, and because the equipment is high in height and because the factory building is generally low due to limited space, the height of a rail surface of a hoisting machine is generally about 8 meters. The hoisting equipment running in the region cannot pass through the high altitude in the hoisting operation running process, and the hoisting machinery must enter the region between the equipment to operate according to the hoisting operation requirement of the production process.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome prior art's defect, the utility model provides a bridge type hoisting machinery hoist and mount operation location anticollision protection system, this system can guarantee to hoist and mount the operation in-process of operation and avoid the obstacle blind area, avoids hanging thing striking barrier.

The technical scheme is as follows: the utility model relates to a bridge crane hoisting operation positioning anti-collision protection system, which comprises a chip reading device, a first positioning chip, a laser detection device, a reflecting plate and a signal processing control module; the chip reading device is arranged on the end beam of the cart, judges the running position of the cart by reading the positioning chip and transmits a position signal to the signal processing control module; the first positioning chips are arranged on a running track of the cart, and the edge position and the area length of a forbidden area of the cart in the running direction of the cart are limited between the two first positioning chips; the laser detection device is arranged on the end beam of the cart, the reflecting plate is arranged on the trolley, and the laser detection device is matched with the reflecting plate to detect the running position of the trolley and transmit a position signal to the signal processing control module; the signal processing control module is internally preset with the area width of a trolley forbidden zone and the relative position of the zone edge and a cart end beam in the trolley running direction, and when the trolley is judged to run to the edge of the trolley forbidden zone, the signal processing control module sends a parking signal to a control system of the hoisting machinery.

The device also comprises an alarm module, wherein the alarm module is arranged in a control room of the hoisting machinery and is connected with the signal processing control module.

Furthermore, the alarm device also comprises second positioning chips arranged on the cart running track, and the edge position and the area length of the alarm area capable of running of the cart in the cart running direction are limited between the two second positioning chips.

The signal processing control module is also internally preset with the area width of the operable alarm area and the relative position of the area edge and the end beam of the cart in the running direction of the cart; when the trolley is judged to run to the alarm area, the signal processing control module sends an alarm to the alarm module to trigger alarm. Therefore, the operation personnel is reminded to pay attention to the operation safety, and the partition multi-stage control of the running track of the trolley is realized.

Furthermore, the trolley positioning device further comprises third positioning chips arranged on the cart running track, and the edge position and the area length of a controllable running area of the trolley in the cart running direction are limited between the two third positioning chips.

The signal processing control module is also internally preset with the area width of the controllable operation area and the relative position of the area edge and the end beam of the cart in the running direction of the cart. Therefore, the running track of the trolley can be further partitioned, and multi-stage control is realized.

Has the advantages that: compared with the prior art, the system determines the position of a cart by arranging the chip reading device and the positioning chip, determines the position of a trolley by arranging the laser detection device and the reflecting plate, judges whether the trolley runs to a forbidden area or not by arranging the signal processing control module, and stops in time when the trolley runs to the edge of the forbidden area of the trolley, so that an obstacle blind area is avoided, the safety accident that a hanging object collides with the obstacle is avoided, and the running safety level of equipment is improved. Meanwhile, the regional classification can be carried out, the regional multi-level control of the running track of the trolley can be realized, and the running safety problem of the hoisting machinery in a complex working site can be effectively solved.

Drawings

FIG. 1 is a schematic diagram of an original layout of an infrared inspection shop in an embodiment before improvement;

fig. 2 is a schematic diagram of an improved layout structure in the embodiment.

Detailed Description

The following will explain the present invention in further detail by taking an infrared flaw detection workshop of a certain bar mill as an example.

As shown in FIG. 1, A₁The area is shot blasting equipment area, the highest position is 6.5 meters, B₁The area is the area of a flaw detection equipment room and is 5.5 meters in height. At the same time, A₂The area is a shot blasting machine feeding rack A₃The area is a shot blasting machine blanking area, B₂The area is a flaw detection blanking area. Not adopting the utility model discloses a bridge crane hoist and mount operation location anticollision protection system before, dolly 2 is current unrestricted, gets into A₁Region or B₁The areas are easy to collide, and the two areas form a dead obstacle area for lifting.

As shown in FIG. 2, according to the actual operation limit in the field, A₁Region and B₁The area is determined as a trolley forbidden area, and a first positioning chip 6 is arranged on a running track 11 of the trolley 1 on the side of the area to limit the boundary of the area. A is to be₂Region and B₂The area is determined as an operable alarm area of the trolley 2, an alarm must be given when the trolley 2 operates in the area to remind an operator of paying attention to safe operation, and a second positioning chip 7 is arranged on an operation track 11 of the trolley 1 on the side of the area to limit the boundary of the area. A is to be₃The area is determined as a controllable operation area, the operation in the area is relatively safe, the warning level is correspondingly reduced,the third positioning chip 8 is arranged on the running track 11 of the cart 1 at the side of the area to limit the boundary of the area. Meanwhile, the space except the above-mentioned area is determined as an unlimited operation area, and the trolley 2 can freely and safely operate in the unlimited operation area. In the workshop, the operable alarm area, the trolley forbidden area and the controllable operation area are continuous in the operation direction of the cart 1, so that the continuous boundaries of the three are determined, and the fourth positioning chip 9 is arranged on the operation track 11 of the cart 1 on the side edge to limit the boundary of the unlimited operation area.

A chip reading device 3 and a laser detection device 4 are installed on an end beam of a cart 1 at the end part of a track of a trolley 2, a reflector 5 is arranged on the trolley 2, and an alarm module is installed in a control room. And a signal processing control module is arranged on the bridge crane and is connected with the alarm module and the original control system of the bridge crane. The area width of each area and the relative position between the edge of each area in the running direction of the trolley and the end beam of the trolley 1 when the trolley runs to each area are preset in the signal processing control module. Therefore, the signal processing control module can judge the specific area of the trolley 2 according to the position of the cart 1 transmitted by the chip reading device 3 and the position of the trolley 2 transmitted by the laser detection device 4. Therefore, the judgment result of the area is transmitted to the control system or the alarm module, and the purpose of parking in the forbidden area of the trolley or alarming in the alarm area capable of running is achieved. Therefore, the partitioned multi-stage control of the running track of the trolley is realized, and the running safety problem of the hoisting machinery in a complex working site is solved.

Claims

1. A bridge crane hoisting operation positioning anti-collision protection system is characterized by comprising a chip reading device (3), a first positioning chip (6), a laser detection device (4), a reflecting plate (5) and a signal processing control module;

the chip reading device (3) is arranged on an end beam of the cart (1), judges the running position of the cart (1) by reading the positioning chip, and transmits a position signal to the signal processing control module;

the first positioning chips (6) are arranged on a running track (11) of the cart (1), and the edge position and the area length of a trolley forbidden area in the running direction of the cart (1) are limited between the two first positioning chips (6);

the laser detection device (4) is arranged on an end beam of the cart (1), the reflecting plate (5) is arranged on the trolley (2), and the laser detection device (4) is matched with the reflecting plate (5) to detect the running position of the trolley (2) and transmit a position signal to the signal processing control module;

the signal processing control module is internally preset with the area width of a trolley forbidden zone and the relative position of the zone edge and the end beam of the cart (1) in the running direction of the trolley (2), and when the trolley (2) is judged to run to the edge of the trolley forbidden zone, the signal processing control module sends a parking signal to a control system of the hoisting machinery.

2. The bridge crane hoisting, operation, positioning and collision avoidance system of claim 1, further comprising an alarm module, wherein the alarm module is installed in a control room of the crane, and is connected with the signal processing and control module.

3. The bridge crane hoisting operation positioning anti-collision protection system according to claim 2, further comprising second positioning chips (7) arranged on the operation track (11) of the cart (1), wherein the edge position and the area length of the operable alarm area of the trolley (2) in the cart operation direction are defined between the two second positioning chips (7).

4. The bridge crane hoisting, operation, positioning and collision avoidance system of claim 3, wherein the signal processing and control module is further preset with the area width of the operable alarm area and the relative position of the area edge and the end beam of the cart (1) in the running direction of the cart (2); when the trolley (2) is judged to run to the alarm area, the signal processing control module sends an alarm to the alarm module to trigger alarm.

5. The bridge crane hoisting operation positioning anti-collision protection system according to claim 1, further comprising third positioning chips (8) arranged on the operation track (11) of the cart (1), wherein the edge position and the area length of the controllable operation area of the trolley (2) in the operation direction of the cart (1) are defined between the two third positioning chips (8).

6. The bridge crane hoisting, operation, positioning and collision avoidance system of claim 5, wherein the signal processing and control module is further preset with the area width of the controllable operation area and the relative position of the area edge and the end beam of the cart (1) in the operation direction of the trolley (2).