CN207108275U - A kind of large-sized gantry crane automatic stopping resets system - Google Patents

A kind of large-sized gantry crane automatic stopping resets system Download PDF

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Publication number
CN207108275U
CN207108275U CN201721018747.5U CN201721018747U CN207108275U CN 207108275 U CN207108275 U CN 207108275U CN 201721018747 U CN201721018747 U CN 201721018747U CN 207108275 U CN207108275 U CN 207108275U
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cart
limiter
main frames
plc main
crane
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CN201721018747.5U
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Chinese (zh)
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熊冠楚
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China Shipbuilding NDRI Engineering Co Ltd
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China Shipbuilding NDRI Engineering Co Ltd
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Abstract

The utility model discloses a kind of large-sized gantry crane automatic stopping to reset system, be characterized in that the system connects cart, dolly and the sensor of lifting mechanism and executing agency by PLC main frames and formed, the large and small garage walk mechanism sensor by large and small car photoelectric encoder, park limiter and car locking limiter forms;The lifting mechanism sensor is made up of raising photoelectric encoder and upper slow down spacing device.The utility model has simple in construction compared with prior art, it is easy to operate, park efficiency high, ensure that the safety of crane is parked and car locking, several mechanical position limitations need to only be increased on former control system hardware foundation, it is other then to utilize the original control system hardware of crane, in strong wind hazard weather, accident can be reduced, important leverage is provided for large-sized gantry crane security.

Description

A kind of large-sized gantry crane automatic stopping resets system
Technical field
Crane Automation control technology field is the utility model is related to, it is especially a kind of based on the big of PLC program control Type gantry crane automatic stopping resets system.
Background technology
Large-sized gantry crane(Straddle truck)Main body is portal framed structure, and span is more than between its usual two side leg 50m, mainly it is made up of girder, two side door legs and upper and lower dolly, every dolly includes 1 ~ 2 set of lifting mechanism.One side door leg and master Beam is fixedly mounted, referred to as rigid leg(Firm leg), other side door leg and main beam pivot install, referred to as flexible leg(Soft leg), both sides Door leg bottom is provided with cart walking mechanism, and cart walking mechanism is by rigid leg side travelling mechanism, flexible leg side travelling mechanism group Into it also configures windproof rail clamping device and anchoring device and is used to park in crane off working state.Crane is when parking, and one As operation to large vehicle walking track mid-point position or other specified locations, parking, rail clamping device and anchoring device are opened, in the point Cheated provided with grappling, anchoring device can put down mortise lock by point at this, and crane is parked in anchor station anchor and lived.
Crane complete machine is out of service park when, general operation to large vehicle walking track anchor station is stopped, and opens folder Rail device and anchoring device.Anchor station parking on upper and lower trolley travelling to girder track, each lifting mechanism rise to girder bottom (Upper slow down spacing)Parking spot.Because mobility of people is big, operation driver often changes, and there is of operating experience custom Body difference, the operational control to the stopping a train at a target point of crane produce difference, and so as to cause to park, efficiency is low.Additionally, due to driver not In accordance with operational procedure, not by each reset during parking, equipment is caused to be not on safe shutdown position.Large and small car and raising Mechanism is required to run, by taking general double trolley crane as an example, travelling mechanism up to 7, due to manually-operated limitation and Security, it can not operate and monitor simultaneously Duo Tao mechanisms while run.Due to the deviation of crane both sides walking mechanism, with And the self inertia of crane, the crane parking facility both sides of prior art tend not to just while reach anchor station, Need manually to be adjusted in place repeatedly, operation is quite cumbersome and inconvenient.
Utility model content
A kind of large-sized gantry crane that the purpose of this utility model is in view of the shortcomings of the prior art and designed stops automatically Car resets system, detects encoder using main frame PLC and position, parks that spacing, car locking is spacing, transducer drive unit and wind The modular system of fast instrument, weighing instrument composition, main frame PLC are calculated according to crane current location and parking place data value Judge, control transducer drive unit driving crane automatic running to parking place, automatic stopping simultaneously opens rail clamping device and anchor Determine device, lock crane, realize the automatic parking and car locking of crane, it is ensured that crane safety, efficiency high of parking, without people Work adjusts repeatedly, and to driver without particular/special requirement, and manufacture construction cost is low, easy to maintenance, it is only necessary in former control system hardware On the basis of increase several mechanical position limitations, it is other then to utilize the original control system hardware of crane, especially in strong wind hazard weather, Accident can be reduced, it is simple in construction, it is easy to operate, mitigate driver operation intensity significantly.
What the purpose of this utility model was realized in:A kind of large-sized gantry crane automatic stopping resets system, and it is special Point be the automatic stopping reset system connected by PLC main frames cart walking mechanism sensor, running gear for trolley sensor, Rise mechanism sensor, large vehicle walking executing agency, carriage walking executing agency, raising executing agency composition, the large vehicle walking Mechanism sensor with PLC main frames and the cart photoelectric encoder, the cart that connect by parking limiter and cart car locking limiter forms; The running gear for trolley sensor with PLC main frames and the dolly photoelectric encoder, the dolly that connect by parking limiter and small lock Car limiter forms;The lifting mechanism sensor by with PLC main frames and the raising photoelectric encoder connect and upper slow down spacing device Composition;The large vehicle walking executing agency is made up of the cart variable frequency drive unit and cart movable motor concatenated with PLC main frames; The carriage walking executing agency is made up of the dolly variable frequency drive unit and trolley walking motor concatenated with PLC main frames;It is described Raising executing agency is made up of the raising variable frequency drive unit and raising movable motor concatenated with PLC main frames.
The cart parks limiter and cart car locking limiter is arranged on cart walking mechanism.
The dolly parks limiter and dolly car locking limiter is arranged on running gear for trolley.
The PLC main frames simultaneously connect anemobiagraph and weighing instrument.
The utility model has simple in construction, easy to operate, efficiency high of parking, it is ensured that crane compared with prior art Safety is parked and car locking, it is only necessary to increase several mechanical position limitations on former control system hardware foundation, it is other then former using crane Some control system hardware, in strong wind hazard weather, accident can be reduced, system run all right, engineering cost is low, maintenance side Just, important leverage is provided for large-sized gantry crane security.
Brief description of the drawings
Fig. 1 is the utility model structure diagram;
Fig. 2 is the utility model control flow schematic diagram.
Embodiment
Refering to accompanying drawing 1, cart walking mechanism sensor 2, running gear for trolley that the utility model is connected by PLC main frames 1 Sensor 3, lifting mechanism sensor 4, large vehicle walking executing agency 8, carriage walking executing agency 9,10 groups of raising executing agency Into, the cart walking mechanism sensor 2 by being parked limiter 22 with PLC main frames 1 and the cart photoelectric encoder 21, the cart that connect Formed with cart car locking limiter 23;The running gear for trolley sensor 3 by with PLC main frames 1 and the dolly photoelectric coding that connects Device 31, dolly park limiter 32 and dolly car locking limiter 33 forms;The lifting mechanism sensor 4 by with PLC main frames 1 simultaneously The raising photoelectric encoder 41 and upper slow down spacing device 42 connect forms;The large vehicle walking executing agency 8 with PLC main frames 1 by going here and there The cart variable frequency drive unit 81 and cart movable motor 82 connect forms;The carriage walking executing agency 9 by with PLC main frames 1 The dolly variable frequency drive unit 91 and trolley walking motor 92 of concatenation form;The raising executing agency 10 with PLC main frames 1 by going here and there The raising variable frequency drive unit 11 and raising movable motor 12 connect forms;The cart park limiter 22 and cart car locking it is spacing Device 23 is the mechanical limit switch or non-contact inductive switch being arranged on cart walking mechanism;The dolly is parked limiter 32 and dolly car locking limiter 33 be to be arranged on being opened using mechanical limit switch or non-contact inductive on running gear for trolley Close;The PLC main frames 1 simultaneously connect anemobiagraph 6 and weighing instrument 7.
Refering to accompanying drawing 2, the utility model uses modularized design, in addition to spacing and car locking of parking is spacing, other portions of system Point it is the usual configuration of goliath control system, increases several machinery limits on the hardware foundation of former control system Position, its system software then writes program of parking to PLC main frames 1 according to control flow, and detects encoder according to position, demarcates Position when heavy-duty machine raising and each walking mechanism are parked, realizes the systemic-function that automatic stopping resets, and automatic parking operation is pressed State step progress:
A, start automatic stopping and reset system, it is automatic that weighed instrument 7 confirms that crane then enters for system after empty wagons load Car-parking model;
B, input PLC main frames 1 carry out each mechanism position after automatic stopping pattern receives the air speed data that anemobiagraph 6 gathers Judge;
C, sensor-based system is by the data input PLC main frames 1 of collection, by PLC main frames 1 according to cart photoelectric encoder 21, small Park limiter 22, dolly of car photoelectric encoder 31, raising photoelectric encoder 41, cart is parked limiter 32 and upper slow down spacing The crane hoisting of the collection of device 42 and each walking mechanism current location and parking place data value carry out calculating judgement;
D, the result judged according to calculating becomes to cart variable frequency drive unit 81, dolly variable frequency drive unit 91 and raising Frequency driver element 11 sends the traffic direction and speed command of each mechanism of crane;
E, control each transducer drive unit to drive each mechanism automatic running of crane to parking place, and open cart Walking mechanism rail clamping device and anchoring device, crane is locked, finally realizes each mechanism safe shutdown.
Control program logic of the present utility model is:Cart walking mechanism is parked spacing in cart parking place horizontal direction Both sides about 0.5 ~ 1m location triggereds, when crane, which is run to, parks spacing, illustrate that crane enters parking areas, the speed of travel Be reduced to minimum speed, car locking is spacing to be triggered in parking place, when crane run to car locking it is spacing when, crane walking parking. In parking areas, encoder data and car locking limit signal are detected according to position, PLC main frames 1 are to crane current location and pool Truck position data value carries out calculating judgement, crane is slowed down and anticipation of stopping, so that crane accurately stops into parking Position, in parking areas, the side door leg deviation-rectifying system of crane two is controlled by parking system.Running gear for trolley is parked spacing small Car parking place horizontal direction both sides about 0.3 ~ 0.5m location triggereds, when trolley travelling to when parking spacing, illustrate dolly enter Parking areas, the speed of travel are reduced to minimum speed.Car locking is spacing to be triggered in parking place, when trolley travelling is spacing to car locking, Carriage walking stops.Its control principle is hung similar to cart walking mechanism, each lifting mechanism when entering automatic stopping reset mode Hook automatically ramps up to emergency after slow down spacing.System sets strong wind protected mode, and when entering the pattern, PLC main frames 1 connect By the alarm signal of anemobiagraph 6, when receiving alarm(Wind speed is more than 20m/s)Crane is automatically into park mode, traveling to pool Truck position, it is ensured that crane safety, to ensure crane safety, crane is when there is load load, it is impossible to is answered into automatic stopping Bit pattern.
Simply the utility model is described in further detail above, and is not used to limit this patent, all for the utility model etc. Effect is implemented, and is intended to be limited solely by within the right of the utility model patent.

Claims (4)

1. a kind of large-sized gantry crane automatic stopping resets system, it is characterised in that the automatic stopping resets system by PLC master Machine(1)The cart walking mechanism sensor of connection(2), running gear for trolley sensor(3), lifting mechanism sensor(4), cart Walking executing agency(8), carriage walking executing agency(9), raising executing agency(10)Composition, the cart walking mechanism sensing Device(2)By with PLC main frames(1)And the cart photoelectric encoder connect(21), cart parks limiter(22)It is spacing with cart car locking Device(23)Composition;The running gear for trolley sensor(3)By with PLC main frames(1)And the dolly photoelectric encoder connect(31), it is small Car is parked limiter(32)With dolly car locking limiter(33)Composition;The lifting mechanism sensor(4)By with PLC main frames(1) And the raising photoelectric encoder connect(41)With upper slow down spacing device(42)Composition;The large vehicle walking executing agency(8)By with PLC Main frame(1)The cart variable frequency drive unit of concatenation(81)And cart movable motor(82)Composition;The carriage walking executing agency (9)By with PLC main frames(1)The dolly variable frequency drive unit of concatenation(91)And trolley walking motor(92)Composition;The raising is held Row mechanism(10)By with PLC main frames(1)The raising variable frequency drive unit of concatenation(11)With raising movable motor(12)Composition.
2. large-sized gantry crane automatic stopping resets system according to claim 1, it is characterised in that the cart is parked Limiter(22)With cart car locking limiter(23)It is arranged on cart walking mechanism.
3. large-sized gantry crane automatic stopping resets system according to claim 1, it is characterised in that the dolly is parked Limiter(32)With dolly car locking limiter(33)It is arranged on running gear for trolley.
4. large-sized gantry crane automatic stopping resets system according to claim 1, it is characterised in that the PLC main frames (1)And connect anemobiagraph(6)And weighing instrument(7).
CN201721018747.5U 2017-08-15 2017-08-15 A kind of large-sized gantry crane automatic stopping resets system Active CN207108275U (en)

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CN201721018747.5U CN207108275U (en) 2017-08-15 2017-08-15 A kind of large-sized gantry crane automatic stopping resets system

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Application Number Priority Date Filing Date Title
CN201721018747.5U CN207108275U (en) 2017-08-15 2017-08-15 A kind of large-sized gantry crane automatic stopping resets system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107337094A (en) * 2017-08-15 2017-11-10 中船第九设计研究院工程有限公司 A kind of large-sized gantry crane automatic stopping resets system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107337094A (en) * 2017-08-15 2017-11-10 中船第九设计研究院工程有限公司 A kind of large-sized gantry crane automatic stopping resets system

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