Conveyor belt energy saving and pressure roller rolling resistance test device and method

Abstract

The invention relates to an impression roller rolling resistance testing device, including a support rack arranged on a to-be-tested conveyer belt, and an impression roller mounted on the support rack. The impression roller comprises a stationary impression roller shaft and an impression roller shell which can freely roll through the impression roller shaft. At least one of two sides of the impression roller shaft is provided with a static torque transducer. The impression roller rolling resistance testing device adopts a carrying roller rolling resistance testing method different from the prior art; the impression roller shaft is stationary, and two ends of the impression roller shaft are supported by two static torque transducers; and torque generated by rotation of the impression roller shell under the experiment driving of a conveyer belt is measured, and the measured torque value is divided by the radius of the impression roller to obtain a peripheral force, namely the rolling resistance of the impression roller.

Description

technical field [0001] The invention relates to a test device for measuring the sag resistance of a conveyor belt, in particular to a test device capable of measuring the rolling resistance of a pressure roller. Background technique [0002] With the continuous development of long-distance transportation, the running resistance of the conveyor belt has attracted widespread attention. The research shows that when the conveyor belt passes through the idler roller, the energy loss caused by the depression of the contact part between the lower cover rubber and the idler roller accounts for about 60% of the energy loss of the entire conveying system due to the pressure of the material when the conveyor belt passes through the idler roller. Therefore, the coal, mining, conveyor belt industries, as well as many colleges and scientific research institutions have been studying the indentation resistance of conveyor belts as an important topic. In order to reduce the conveying resist...

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Problems solved by technology

[0021] ①The existing test device for measuring the indentation resistance of the conveyor belt does not exclude the rolling resistance of the pressure roller itself, and the measured horizontal force is actually the resultant force of the two forces, the circumferential force and the indentation resistance generated by the rolling resistance itself , the measurement error is large

[0022] ②Most of the existing methods for measuring the resistance of conveyor belt idlers cannot completely simulate the load conditions of the actual operation of the idler and the required test device has a complex structure, which cannot be applied to the test device for testing endless conveyor belt samples

[0023] ③The existing method for installing the endless belt sample needs to dismantle a large number of parts on the test device. Repeated movement of the frame will also reduce the accuracy of the entire device, making it difficult to popularize and apply

[0024] ④The method of vulcanizing the joint of the sample on the test device, the conveyor belt, especially the steel wire rope conveyor belt, has a strict joint process, which requires high technical personnel. Since it is not operated in a professional production plant, the technology and equipment cannot be guaranteed. The strength and flatness of the sample joint will be greatly affected, making the sample run unstable during the test, and sometimes the length of the connected sample may even appear inconsistent on the left and right sides (in the shape of a bell mouth), causing the sample "Deviation" during the test, in severe cases, the test cannot be carried out

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