Conveyer belt test device and method for loading and unloading samples on annular conveyer belt

Abstract

The invention relates to a conveyer belt test device, which comprises a base, a driving roller, a driven roller, a conveyer belt arranged on the driving roller and the driven roller, and a test system arranged below the conveyer belt. A telescopic rack is arranged on the base. The telescopic rack is composed of a fixed part and a movable part. The fixed part is fixedly provided with the driving roller. The movable part is provided with the driven roller. The movable part is capable of sliding left and right relative to the fixed part. A detachable supporting device is arranged on at least one side below the fixed part and the movable part of the telescopic rack. A jack is arranged below the driving roller and the driven roller and on the base. A cushion block arranged between the fixed part of the telescopic rack and the base is used for supporting the fixed part of the telescopic rack and the base. A hydraulic jack is arranged below the rollers. In this way, an annular sample can be placed on the test device and can also be unloaded from the test device. The disassembly and assembly number of parts is reduced, and the accuracy of the entire test device is ensured.

Description

technical field [0001] The invention relates to a conveyor belt test device and a sample loading and unloading method. Background technique [0002] With the continuous development of industries such as ports, mines and coal mines, the amount of conveyor belts has gradually increased, and the performance and quality of conveyor belts have attracted widespread attention. National standards, international standards and many advanced national standards have stipulated various performances of conveyor belts and formulated corresponding test methods, including dynamic test methods for finished conveyor belts. [0003] The dynamic test of the finished conveyor belt must use a ring sample. Because the dynamic test requires the conveyor belt sample to be tensioned with a relatively large force, especially the tension force of the steel wire rope conveyor belt test is tens of tons or even hundreds of tons, so The driving drum and the tensioning drum can only adopt the structure su...

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Problems solved by technology

[0004] according to the method It is necessary to dismantle a large number of parts on the test device, it is time-consuming to load and unload the samples, and a whole set of hydraulic system is needed to pull and restore the frame, which makes the structure of the device more complicated, and the repeated movement of the frame will reduce the accuracy of the whole device. It is difficult to promote the application; according to the method Two sets of movable support rod devices are required, which increases the manufacturing cost of the equipment and is cumbersome to operate; according to The 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 sample The strength and flatness of the 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), resulting in the sample being in the "Deviation" during the test, in severe cases, the test cannot be carried out

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