GCU-Electronic dynamic rail-weighbridge

Release Time：2020-03-26 丨 Edit：丨 Click：198

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PRODUCT OVERVIEW

The GCU series of Electronic dynamic rail-weighbridge produced by Dalian Jinma Weighing Instrument is a kind of measuring equipment for dynamic weighing of heavy-duty trains. It can dynamically and continuously carry out dynamic weighing of the heavy-duty trains without stopping or removing hooks;It is an ideal equipment for dynamic weighing of trains in railway transportation departments such as metallurgical mines, petrochemicals, stations, terminals, coal, and power industries.

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IMPLEMENTATION STANDARDS

● GB/T 11885-2015 "Automatic rail-weighbridges"
● GB / T14249.1-1993 "Safety requirements for electronic weighing instruments"
● GB/T 23111-2008 "Non-automatic weighing instrument"
● GB/T 2887-2011 "General specification for computer field"
● JJG 234-2012 "Automatic Rail-weighbridges"

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PRODUCT DESCRIPTION

PARAMETERS AND PERFORMANCE

PARAMETERS AND PERFORMANCE

● Weighing range: 18t to 100t.
● Weighing method: Two-way automatic bogie dynamic weighing.
● Weighing speed : 3 ~ 15km / H.
● Maximum vehicle speed: 40km / H.
● Weighing accuracy: It is better than the required in the the national standard JJG234-2012"Automatic Rail-weighbridges" verification regulation tolerance provisions requirements.
● Print display items: date, model, car number, unit name, arrival, gross weight, tare weight, net weight, profit and loss, etc. ( can also be adjusted according to user needs )
● Transducer: Four high-precision resistance strain gauge load cells . The rated load of each transducer is determined according to the size of the weighing range.
● Effective length of weighing rail: 38 00mm (special requirements can be specially designed).
● Inner gauge: 1435 mm (special requirements can be specially designed).
● Power consumption: The power consumption of this machine is not more than 500W.
● Automatic car number identification system: It can automatically read relevant information such as car number and tare weight of railway wagons.
● Operation mode: unattended, local duty operation during measurement, and provides functions such as network data query with upper computer.
WORKING CONDITIONS

WORKING CONDITIONS

● The weighed vehicle shall meet the requirements of railway operation, a four-axle freight train with a weight saving less than the nominal weight and an internal gauge of the standard series gauge.
● The two sections of the weighing platform should each have a straight track segment of not less than 80 meters , including a 25- meter monolithic concrete track bed.
● The train is required to pass the weighing platform smoothly during weighing , and it is not allowed to accelerate or brake suddenly during the weighing process.
● The weighing control room is required to be sealed and dustproof. The room temperature should be controlled within 10 ℃ ~ 30 ℃ , and the relative humidity should be less than 95% . The location and conditions of the weighing house should meet the relevant requirements specified in the national standard "Electronic dynamic rail-weighbridge".
● The weighing control room should be equipped with an AC power supply , a two-phase three-wire power supply with a voltage of 220V , the voltage error is less than ± 10%, the frequency is 50Hz , the error is less than ± 2% , and the waveform distortion rate is less than 5% . The ground resistance is less than 4 ohms.
● There should be an independent and good grounding device near the mechanical weighing platform, and the grounding resistance should be less than 4 ohms in the driest season.
● For the device to work , around the equipment should avoid interfering with strong electromagnetic fields , avoid corrosion corrosive substances on the device.
● It is strictly forbidden to engage in electric welding operations near the equipment, nor is it allowed to use steel rails and equipment for conductive lines.
TECHNICAL DESCRIPTION

TECHNICAL DESCRIPTION

Electronic dynamic rail-weighbridge is an automatic measuring equipment for dynamically weighing on-the-fly load trains. It consists of a mechanical weighing platform , a high-precision resistance strain gauge load cell, a data acquisition channel, and a microcomputer control system. Auxiliary parts such as the foundation track bed specially designed and constructed are also matched with it.

When a certain speed train (. 3 ~ 18km / H) steady speed by weighing table, the table put a transducer in the weighing signal into the train weight is millivolt voltage signal proportional thereto , the transducer output voltage signal , the amplified channel data acquisition, filtering, analog / post-digital conversion processing, into the computer via an interface , a computer data signal by taking the arithmetic processing data , calculate the weight of each section and the speed of the vehicle , a monitor and printer and , In the order of weighing , displayed and printed in the form of Chinese characters.

Mechanical weighing table

The mechanical weighing platform is composed of load-bearing beams , translators , vertical and horizontal limit devices, etc. The load-bearing beam is the main component of the scale body . It directly bears the weight of the weighed object . Sufficient rigidity and strength are essential conditions . The translator is a key component to ensure that the vehicle enters the weighing platform smoothly . It can minimize the vibration generated when the vehicle enters the weighing platform. The setting of longitudinal and lateral limit devices can make the load-bearing beam in the most stable state.
Transducer

The transducer is a resistance strain gauge high-precision load cell, which is a key component of the entire system. The transducer of Electronic dynamic rail-weighbridge should have a wide working temperature range, be sealed against moisture, have a strong overload capacity, and be stable and reliable for a long time. The transducers used in the dynamic electronic rail-weighbridges produced by our factory generally use high-quality, high-stability load cells.
Data acquisition channel

The 16-bit high-speed, high-precision weighing data acquisition channel produced by our factory integrates bridge power supply, signal amplifier circuit, filter circuit, photoelectric isolation circuit, data pre-processing, A / D conversion, and communication interface. High-speed data acquisition for various dynamic weighing instruments. It uses digital processing technology to achieve digital low-pass interference filtering and digital anti-interference pre-processing, which greatly improves the anti-interference and reliability of the whole machine. In addition, it uses a DC / DC power supply scheme, which further enhances the overall safety and anti-interference ability.
Vehicle number recognition system

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PRODUCT WARRANTY

Our company implements the lifelong responsibility for the products sold by the test qualified products, from the date of certification within one year free warranty, artificial damage free repair by our factory, man-made damage and warranty for one year after Charges will be charged. According to the needs of users, our factory can train operators and equipment maintenance personnel for users all year round , and can also transform existing weighing equipment for users . Welcome customers to visit us.

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