CN110885009B - Anticollision bridge crane - Google Patents
Anticollision bridge crane Download PDFInfo
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- CN110885009B CN110885009B CN201911293610.4A CN201911293610A CN110885009B CN 110885009 B CN110885009 B CN 110885009B CN 201911293610 A CN201911293610 A CN 201911293610A CN 110885009 B CN110885009 B CN 110885009B
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- friction wheel
- safety
- collision
- light emitting
- crane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/04—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention relates to an anti-collision bridge crane, wherein one side of a main beam is provided with a pair of safety rails, sliding strips of two adjacent cranes slide in one safety rail respectively, the length of each sliding strip is set to be the length of a safety distance, so that when a first friction wheel and a second friction wheel of the same friction wheel unit rotate simultaneously, the distance between the two adjacent cranes is smaller than the safety distance, and at the moment, whether the rotation directions of the adjacent cranes are the same or not is judged according to the relative rotation speed between the first friction wheel and the second friction wheel, so that the collision possibility is judged, and the corresponding speed reduction operation is carried out to avoid collision.
Description
Technical Field
The invention relates to the field of cranes, in particular to an anti-collision bridge crane.
Background
The bridge crane is an important tool and equipment for realizing mechanization and automation of the production process in modern industrial production and hoisting transportation. Therefore, the bridge crane is widely applied to indoor and outdoor industrial and mining enterprises, steel chemical industry, railway transportation, ports and docks, logistics turnover and other departments and places. The safety work of the bridge crane is more and more concerned by people in recent years, and the current anti-collision systems are roughly divided into two categories. One method is to realize collision prevention by mutual cooperation and cooperation between a crane driver and an observer, and the method greatly increases the labor cost and has lower efficiency. The other type is to use intelligent equipment to perform automatic detection and anti-collision operation, and the anti-collision method generally adopts the method that the crane is stopped to realize anti-collision, so that the production and transportation efficiency is reduced.
Through the discovery of the literature search of the prior art, the utility model patent (application number 201721887700.2) disclosed by li shao dong discloses a collision prevention system for a ship factory crane group, is connected with a processing module through setting up a control module, and the processing module is connected with the limit circuit of crane, and the processing module is connected with wireless transmission module, has solved the problem that the position can change because the real-time position of other cranes can not be confirmed when the cross operation, bumps easily. The published utility model patent (application number 201821133225.4) discloses an anti-collision alarm system for tower crane construction, which is provided with a laser ranging sensor, wherein the light beam of the laser ranging sensor is perpendicular to a gantry crane; a height sensor is installed on a lifting hook steel wire winding drum of the gantry crane, a gantry crane alarm box is arranged in an operation chamber of the gantry crane, an azimuth sensor is installed at the rotation position of the tower crane rotation mechanism, a tower crane alarm box is arranged in the operation chamber of the tower crane rotation mechanism, and the gantry crane alarm box and the tower crane alarm box perform data transmission through a wireless communication module to realize anti-collision.
The device for realizing the anti-collision by controlling and judging the speed and the direction of the crane and utilizing the electromagnet is not available in the prior art by combining the searched literature data.
Disclosure of Invention
The invention aims to provide an anti-collision bridge crane for performing anti-collision control by combining the speed and the direction of a main beam, which is realized by the following technical scheme:
an anti-collision bridge crane comprises a pair of parallel slide rails, a main beam arranged on the slide rails in a sliding manner, two safety rails, a plurality of friction wheel units and a slide bar, wherein the two safety rails are arranged on one side of the slide rails in parallel; the first friction wheel and the second friction wheel of the same friction wheel unit are opposite in side; the sliding strip is slidably arranged in a safety track, the middle part of the sliding strip is fixedly connected to one end of the main beam, and when the main beam slides along the sliding rail, the sliding strip slides in the safety track and drives the first friction wheel or the second friction wheel to rotate when passing through the side of the first friction wheel or the second friction wheel; a light emitting tube is arranged on the side surface of the first friction wheel, and a light collecting tube opposite to the light emitting tube is arranged on the side surface of the second friction wheel.
The anti-collision bridge crane is further designed in that two groups of corresponding light emitting tubes and light receiving tubes are arranged on the side surfaces of the first friction wheel and the second friction wheel and are positioned on the circumferences of the first friction wheel and the second friction wheel with different radiuses, and the corresponding arc angle between the two light emitting tubes positioned on the different radiuses in the first friction wheel is smaller than 180 degrees.
The anti-collision bridge crane is further designed in that the first friction wheel is provided with an annular light blocking sheet between the two light emitting tubes, and similarly, the second friction wheel is also provided with an annular light blocking sheet between the two light collecting tubes.
The anti-collision bridge crane is further designed in such a way that the length of the sliding strip is greater than the distance between two adjacent friction wheel units.
The anti-collision bridge crane is further designed in that electromagnets are arranged at two opposite sliding sides of the end part of the main beam.
The invention has the beneficial effects that:
set up a pair of safe track on girder one side, the sliding strip of two adjacent cranes slides respectively in one of them safe track, length with the sliding strip sets up to safe distance's length, thereby when the first friction pulley of same friction pulley unit and second friction pulley rotate simultaneously, distance between two adjacent cranes is less than safe distance, combine the relative speed between first friction pulley and the second friction pulley this moment to judge whether the rotation direction of adjacent crane is the same, thereby judge the collision possibility, thereby carry out corresponding speed reduction operation in order to avoid the collision.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic structural view of the safety rail and the friction wheel unit.
Fig. 3 is a side view of the friction wheel disposed on the safety rail.
FIG. 4 is a schematic side view of a friction wheel.
Detailed Description
The invention is further illustrated by the following figures and examples in conjunction with the description:
the anti-collision bridge crane comprises a pair of parallel slide rails 1, a main beam 2 arranged on the slide rails in a sliding manner, two safety rails 3, a plurality of friction wheel units 4 and a slide bar 5, wherein the two safety rails are arranged on one side of the slide rails in parallel, each friction wheel unit comprises a first friction wheel 41 and a second friction wheel 42, the first friction wheel is arranged on one side of one safety rail, and the second friction wheel is arranged on one side of the other safety rail; the first friction wheel and the second friction wheel of the same friction wheel unit are opposite in side; the sliding strip is slidably arranged in a safety track, the middle part of the sliding strip is fixedly connected to one end of the main beam, and when the main beam slides along the sliding rail, the sliding strip slides in the safety track and drives the first friction wheel or the second friction wheel to rotate when passing through the side of the first friction wheel or the second friction wheel; a light emitting tube 43 is arranged on the side surface of the first friction wheel, and a light receiving tube 44 opposite to the light emitting tube is arranged on the side surface of the second friction wheel.
Since the diameters of the first friction wheel and the second friction wheel are fixed, when the crane moves and the sliding strip drives the corresponding friction wheel to rotate, the absolute rotating speed of the first friction wheel or the second friction wheel is in a linear correlation relationship with the speed of the crane; in the moving process of the crane, friction wheels at different positions on the safety track can rotate, when the crane stops, the corresponding friction wheels stop rotating, and other adjacent friction wheels do not rotate on two sides of the corresponding friction wheels any more, at the moment, the position of the friction wheel is recorded to form a stop record, and the position corresponds to the position where the crane stops. And determining the moving direction of the corresponding crane according to the extending directions of the first friction wheel or the second friction wheel in the same safety track, which rotate and stop in sequence.
The light emitted by the luminotron of the first friction wheel is received by the corresponding light receiving tube of the second friction wheel to generate a pulse signal, and the relative rotating speed between the first friction wheel and the second friction wheel is calculated; the moving speed of the crane girder corresponding to the first friction wheel is converted into the rotating speed of the first friction wheel, if the rotating speed is equal to the relative rotating speed, it can be judged that no other crane exists or one stopped crane exists in the safe distance range of the crane corresponding to the first friction wheel, at this time, the friction wheel stop records of all friction wheel units in the safe distance of the crane are read, it is judged whether other cranes exist in the safe distance, if no other cranes exist, the crane normally operates, and if other cranes exist, the crane decelerates and stops.
The moving speed of the crane girder corresponding to the first friction wheel is converted into the rotating speed of the first friction wheel, if the rotating speed is greater than the relative rotating speed, another crane moving in the same direction as the crane exists, the crane in front and the crane behind are determined according to the determined moving direction, and collision can be avoided when the front crane is accelerated and the rear crane is decelerated.
The moving speed of the crane girder corresponding to the first friction wheel is converted into the rotating speed of the first friction wheel, if the rotating speed is less than the relative rotating speed, another crane opposite to the crane in the same direction exists in the safe distance, and the two cranes are respectively decelerated to avoid collision.
Further, in order to facilitate direct judgment of the relative rotation direction between the first friction wheel and the second friction wheel, two groups of corresponding light emitting tubes and light receiving tubes are arranged on the side faces of the first friction wheel and the second friction wheel and are located on the circumferences of the first friction wheel and the second friction wheel with different radiuses, and the corresponding arc angle between the two light emitting tubes located on the different radiuses in the first friction wheel is smaller than 180 degrees. At the moment, the relative rotation direction is determined by combining the sequence of the signals received by the two light collecting tubes, so that the relative movement direction of the two cranes can be determined without comparing the absolute rotation speed and the relative rotation speed of the friction wheel.
Further, in order to reduce the interference between the two groups of light emitting tubes and the light collecting tubes, the first friction wheel is provided with an annular light blocking sheet 45 between the two light emitting tubes, and similarly, the second friction wheel is also provided with an annular light blocking sheet between the two light collecting tubes.
In order to ensure the matching effect between the sliding strip and the friction wheel unit, the length of the sliding strip is larger than the distance between two adjacent friction wheel units.
The end of the main beam is provided with electromagnets 6 along two opposite sliding sides, and when the distance between the two cranes is too close and collision risks exist, the electromagnets conduct electricity and utilize the action force of homopolar repulsion to avoid collision accidents.
Claims (5)
1. An anti-collision bridge crane comprises a pair of slide rails arranged in parallel and a main beam arranged on the slide rails in a sliding manner, and is characterized by further comprising two safety rails, a plurality of friction wheel units and a slide bar, wherein the two safety rails are arranged on one side of the slide rails in parallel, each friction wheel unit comprises a first friction wheel and a second friction wheel, the first friction wheel is arranged on one side of one safety rail, and the second friction wheel is arranged on one side of the other safety rail; the first friction wheel and the second friction wheel of the same friction wheel unit are opposite in side; the sliding strip is slidably arranged in a safety track, the middle part of the sliding strip is horizontally and fixedly connected to one end of the main beam, and when the main beam slides along the sliding rail, the sliding strip slides in the safety track and drives the first friction wheel or the second friction wheel to rotate when passing through the side of the first friction wheel or the second friction wheel; a light emitting tube is arranged on the side surface of the first friction wheel, and a light collecting tube opposite to the light emitting tube is arranged on the side surface of the second friction wheel.
2. The anti-collision bridge crane according to claim 1, wherein two sets of corresponding light emitting tubes and light receiving tubes are arranged on the side surfaces of the first friction wheel and the second friction wheel, the two sets of light emitting tubes and light receiving tubes are arranged on the circumferences of the first friction wheel and the second friction wheel with different radiuses, and the corresponding arc angle between the two light emitting tubes on the different radiuses in the first friction wheel is smaller than 180 degrees.
3. The anti-collision bridge crane according to claim 2, wherein the first friction wheel is provided with an annular light barrier between the two light emitting tubes, and similarly, the second friction wheel is provided with an annular light barrier between the two light collecting tubes.
4. The collision-proof bridge crane according to claim 1, wherein the length of the slide bar is greater than the distance between two adjacent friction wheel units.
5. The anti-collision bridge crane according to claim 1, wherein the ends of the main beam are provided with electromagnets on opposite sides in the sliding direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293610.4A CN110885009B (en) | 2019-12-16 | 2019-12-16 | Anticollision bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293610.4A CN110885009B (en) | 2019-12-16 | 2019-12-16 | Anticollision bridge crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110885009A CN110885009A (en) | 2020-03-17 |
| CN110885009B true CN110885009B (en) | 2020-11-27 |
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ID=69752064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911293610.4A Active CN110885009B (en) | 2019-12-16 | 2019-12-16 | Anticollision bridge crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN110885009B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3150636B2 (en) * | 1996-12-06 | 2001-03-26 | 三菱重工業株式会社 | Crane lowering collision prevention device |
| DE102005006206B4 (en) * | 2005-02-11 | 2007-08-16 | Gottwald Port Technology Gmbh | Storm protection for cranes |
| JP4817908B2 (en) * | 2006-03-23 | 2011-11-16 | 三井造船株式会社 | Spreader anti-collision device |
| CN203806991U (en) * | 2014-04-25 | 2014-09-03 | 中煤平朔集团有限公司 | Towing-hanging-type cable monorail crane anti-collision limit boosting device |
| CN204607429U (en) * | 2015-05-11 | 2015-09-02 | 张洪波 | Crane in bridge type collision protection structure |
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2019
- 2019-12-16 CN CN201911293610.4A patent/CN110885009B/en active Active
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| CN110885009A (en) | 2020-03-17 |
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Effective date of registration: 20230821 Address after: 226000 No. 9 Siyuan Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Nantong University Technology Transfer Center Co.,Ltd. Address before: 226019 Jiangsu Province, Nantong City Chongchuan District sik Road No. 9 Patentee before: NANTONG University |
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