A method for detecting the compatibility between the joint of the rubber hose assembly and the rubber hose
A rubber hose assembly and detection method technology, which is applied in the direction of applying repeated force/pulsation force to test the strength of materials, etc., can solve the problems of uncontrollable test results, waste of laboratory resources, and large test time span, so as to save pulse test time , shorten test time, fast and accurate solution effect
Active Publication Date: 2017-11-14
SHANDONG ANENG CONVEYOR BELT & RUBBER
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Problems solved by technology
Among them, the pulse test is a fatigue test. It simulates the working state of the hose assembly to verify the service life of the hose assembly, that is, whether the number of pulses meets the standard requirements. The test time span is large, resulting in a long test cycle. Moreover, the test results are uncontrollable, which seriously wastes laboratory resources and virtually increases production costs.
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[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0029] Such as figure 1 As shown, the combination of the rubber hose 3 and the joint is collectively called the rubber hose assembly, including the core 1 , the sleeve 2 and the rubber hose 3 . The rubber hose 3 of the rubber hose assembly is divided into steel wire braided rubber hose and non-steel wire braided rubber hose. The rubber hose 3 used in the rubber hose assembly with different usage requirements is different, and each has its own testing standards, and this pre-testing method can be used for pre-testing. . The two indicators for judging the connection quality of the rubber hose assembly are the sealing performance of the assembly and the pull-out strength of the assembly. Due to the rubber elasticity of the inner rubber, it can fill the gap between the core 1 and the inner rubber to form a seal when crimping, and the inner teeth of the sl...
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The invention discloses a method for detecting the matching performance of a joint of a rubber hose assembly and a rubber hose. One port of the rubber hose is processed, and a crimping machine is used to connect it with a core of the joint to form a rubber hose assembly. The rubber hose assembly Place it at room temperature for a period of time, then put it in a constant temperature oven to keep warm, take out the rubber hose assembly and observe whether there is a bulge at the connection between the rubber hose and the core, observe again after a period of time, and reselect the rubber hose assembly with a different diameter The rubber hose and the joint are pressed together, and the above steps are repeated until no bulge occurs at the connection between the core of the rubber hose assembly and the rubber hose. Manufacturers provide guidance, play a huge role in customer service and can reduce testing costs.
Description
technical field [0001] The invention relates to a matching detection method for a joint of a rubber hose assembly and a rubber hose. Background technique [0002] Hose assembly is an auxiliary device commonly used in hydraulic systems. It is made of high-pressure steel wire braided or wound rubber hose and steel joints crimped by special equipment, and is used to connect various hydraulic components in the hydraulic system. structured as figure 1 As shown, in actual work, failure forms such as hose blasting, hose trachoma leakage, hose and joint pull-out, internal connection breakage, and initial leakage of hose assembly buckle often occur, causing host and system failures, and even personal injuries. vicious accident. [0003] Existing rubber hose assembly inspection methods mainly include pressure test, burst test and pulse test. Among them, the pulse test is a fatigue test. It simulates the working state of the hose assembly to verify the service life of the hose asse...
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IPC IPC(8): G01N3/36
Inventor 程明张庆贺张永浩戚伟吴恒宇李洪成
Owner SHANDONG ANENG CONVEYOR BELT & RUBBER