Hose wear resistance testing machine

Abstract

The invention discloses a hose wear resistance testing machine which comprises a machine seat, a movable arm, a motor, abrasive paper and a hose positioning roller. One end of the movable arm is hinged on the machine seat through a hinging shaft while the other end of the same is a free end, the abrasive paper is fixed on the movable arm, a spiral groove is formed in the surface of the hose positioning roller, a tested hose is put in the spiral groove, the movable arm presses the abrasive paper onto the tested hose which is filled with gas, the motor drives the hose positioning roller to rotate through a transmission mechanism, the tested hose rotates along with the hose positioning roller, and the abrasive paper abrades the tested hose. The hose wear resistance testing machine further comprises a high-pressure gas nozzle and a weight, the high-pressure gas nozzle is used for blowing away dust generated by friction between the abrasive paper and the tested hose, and the weight is used for adjusting pressure applied on the tested hose by the movable arm. The hose wear resistance testing machine is closer to actual using scene of the hose, the defect that testing data are not accurate enough is overcome, experiment period is shortened, testing accuracy is improved, and diverse testing modes are realized.

Description

technical field [0001] The invention relates to a wear-resistant test machine, in particular to a hose wear-resistant test machine. Background technique [0002] Existing hose abrasion testing machine, such as the publication number published by the State Intellectual Property Office on December 25, 2013 is 203365263U, the patent name is the patent of hose abrasion testing machine, the technical content of this patent includes: a The workbench of the test stand, the lower part of the workbench is connected to a lifting mechanism; an eccentric disc with a sliding link, the end of the sliding link is connected to the friction head; the input end of the eccentric disc is connected to the reducer output end; a linear guide column is set between the sliding connecting rod and the friction head; the reducer is driven by a variable frequency motor. The above-mentioned hose abrasion tester does not have a dust blowing mechanism, and the dust generated during the friction between th...

AI Technical Summary

Problems solved by technology

The above-mentioned hose abrasion tester does not have a dust blowing mechanism, and the dust generated during the friction between the hose and the sandpaper cannot be cleaned, which directly affects the accuracy of the test data; the earlier abrasion resistance tester fixed the hose and passed it through the sandpaper. The reciprocating motion on the surface of the hose is used for testing. The test method is single and cannot be tested under simulated actual use conditions. The test data is not accurate enough; the earlier motor speed cannot be adjusted, the test efficiency is low, and it takes a lot of time to test a set of samples. longer time

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