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Conveyor belt dynamic joint durability strength testing machine

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Specialized testing machine

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Durability strength testing machine for conveyor belt dynamic joints SDJN-02

Working principle:
MeetsMT/T318.1 'Technical Conditions for Mechanical Joints of Conveyor Belts Used in Coal Mines' standard.

This testing platform uses a high-power imported frequency conversion speed controller paired with a three-phase frequency conversion speed motor to achieve precise stepless speed regulation of the sample's rotation speed through a large speed ratio reduction system. The tension system adopts a dual high-power AC servo system for synchronous loading design.

This synchronous loading system has two functions:

1. Can synchronously load tension up to 200KN with high precision;

2. When the sample belt deviates, the system can provide constant tension correction operation.

Under the control of the central electric control system, the synchronous loading mechanism is activated to apply tension to the sample belt. When the loading reaches half of the rated tension, the system controls the start of:1. Counting system. 2. Frequency conversion speed regulation system starts slowly. 3. Start correction system. After accelerating to the rated speed, the system controls the tension loading system, gradually loading to the rated tension.

During operation, the system monitors tension changes in real-time and maintains the sample tension constant within ±1% of the rated tension through constant tension control; at the same time, when the sample belt deviation is detected, it can start the constant tension correction operation at any time. When the system detects a sharp drop in tension, the tension loading reaches the limit, or the one-way continuous correction times out, the system will emergency brake and store the current status and data.Technical parameters:
Model

Sample ring belt circumference	SDJN-02
5200mm~15000mm	Sample width
300mm	Line speed adjustment range
Maximum tensile force of the sample	1m/s-6m/s
20-250KN (can be set arbitrarily)	Tension loading distance
≥1750mm	Tension display accuracy
≤±0.5%	Tension value error
≤±1%	Revolution counting error
≤±0.1%	Continuous operation time
≥400 hours	Number of rollers
φ250×4 pieces, φ455×4 pieces, φ610×4 pieces, φ800×4 pieces, φ1000×4 pieces	Roller speed range
0.2r/s~1.5r/s	Maximum power consumption
12KW (three-phase four-wire system) 380V AC	Dimensions
Length (L): 6.5m; Width (W): 800mm; Height (H): 3.5m	Weight
Approximately	9KG9KG