Rotary wear experiment device for bushing machining

Abstract

The invention relates to the technical field of machining equipment, and discloses a rotary wear experiment device for bushing machining, which comprises a mounting base and a piezoelectric crystal, wherein a fixed shaft is fixedly connected to the front surface of the mounting base, a first electromagnet is fixedly connected to the interior of the fixed shaft, and traction springs which are uniformly distributed are fixedly connected to the outer side of the fixed shaft. According to the rotary wear experiment device for bushing machining, when the outer side of the bushing is worn, the bushing is stressed between the limiting clamping block and the rotary sleeve shaft to be unbalanced, the traction spring is loosened, and the limiting clamping block is ejected out, so that the mounting insertion shaft is driven to be ejected out, and the piezoelectric crystal is pressed to generate current which is transmitted to the second electromagnet through the current amplifier; the second magnet block is pushed rightwards along the long sliding groove, so that when the dielectric plate moves to the position between the positive plate and the negative plate, the control circuit is cut off,testing is finished, the control circuit is electrically connected with the timer, the wear-resistant time limit can be recorded, the testing precision is high, and data can be conveniently recorded.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a rotating wear test device for bushing processing. Background technique [0002] The bushing is used outside the mechanical parts to achieve the functions of sealing and wear protection. It refers to the ring sleeve that acts as a gasket. In the field of valve application, the bushing is inside the valve cover, and polytetrafluoroethylene is generally used. Or graphite and other corrosion-resistant materials are used for sealing. During the use of the bushing, the inner ring and outer ring will suffer rolling wear or sliding wear due to different installation environments or force directions. When the bushing or bushing wears to Replace to a certain extent, which can save the cost of replacing the shaft or seat. [0003] The bushings are mostly made of soft metal, rubber, nylon and non-metallic polymers, etc. The bushings of different materials have diff...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a rotating wear test device for bushing processing, which has the advantages of simple operation, high degree of automation and high measurement accuracy, and solves the problem of low measurement precision of the existing bushing test equipment. The problem that the detection of bush wear and service time is not accurate enough

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