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.