Micro-control test device for wagon brake cylinder

The invention discloses a micro-control test device for a wagon brake cylinder. The micro-control test device for the wagon brake cylinder comprises a main air cylinder, a brake cylinder stroke control mechanism and a control system, wherein the main air cylinder is correspondingly communicated with main air and the wagon brake cylinder respectively through a proportional value and an electromagnetic valve group; the brake cylinder stroke control mechanism and the wagon brake cylinder are arranged correspondingly; the control system is connected with the brake cylinder stroke control mechanism, the proportional value and the electromagnetic valve group respectively through control cables. According to the micro-control test device for the wagon brake cylinder, the wagon brake cylinder can finish test detection on various performance stipulated by a test method, such as braking, pressure maintaining and relieving under different pressures, different inflating/exhausting speeds and different strokes; in the test process, corresponding pressure parameters are acquired by a pressure sensor and are fed back to a computer through a digital-to-analogue conversion module so as to judge whether various performance of the wagon brake cylinder conforms to the design requirements and related standards of the technical specification of the attachment 'Railway Wagon Spinning Brake Cylinder Technical Condition' of the [Chinese Railway Corporation (2013) 45#] file of the Chinese Railway Corporation.