Water-cooled motor shell detection device

Abstract

The invention discloses a detection device for a water-cooled motor shell, which includes a detection box for holding a detection liquid; an opening and closing structure is arranged on the branch pipe and is opened when the branch pipe penetrates into the first blocking member The branch pipe is used to pass gas into the motor casing. The invention avoids the water splash caused by the sloshing of the pipeline, so that it is convenient to observe the air bubbles generated in the air water. It is easy to operate, does not need additional manual insertion, and can effectively use the gravity of the motor shell, thereby saving labor; It improves the accuracy of the judgment of each motor shell, reduces the error rate of detection, thereby reducing the scrap rate of the motor and improving the production efficiency of the motor.

Description

technical field [0001] The invention belongs to the technical field of motor manufacturing, and in particular relates to a detection device for a water-cooled motor shell. Background technique [0002] Water-cooled motors have been widely available in the market. By setting a cavity on the motor casing, and then through water circulation, the heat generated inside the motor is heat-exchanged. The cooling effect is good, and it can effectively protect the motor. The overall stability during the working process improves the service life of the motor; because the motor is powered internally, the water-cooled motor cannot leak water during the production process. Therefore, in the process of producing the motor, it is necessary to perform leak detection on the motor shell to ensure the use of the motor security. [0003] The existing motor leak detection method is to block the openings at both ends of the motor, and then pass air through one end of the phase to achieve effectiv...

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Problems solved by technology

[0003] The existing motor leak detection method is to block the openings at both ends of the motor, and then pass air through one end of the phase to achieve effective leak detection. In this process, the motor is placed in water alone for leak detection. In the process of leak detection, it is usually to block the openings of the motor first, then insert the air supply pipe into the motor, and then put it in the water to observe whether there are bubbles. However, the detection method has the following defects: 1. The air guide pipe is easy to Shaking in the water causes splashes in the water, which affects the judgment of whether there are bubbles in the water; 2. The insertion of the air guide pipe requires additional manual operations, resulting in increased manual workload, and if the air guide pipe is directly connected to the seal If the plugging parts that block the motor casing are fixedly connected, when the air guide pipe or the plugging parts are damaged, they need to be completely replaced, and the cost is high; 3. The air guide pipe is inserted into the motor housing before entering the water. Air supply will cause the internal air pressure to rise quickly, causing the internal air pressure to reach a critical value before the water splash stops when the motor casing is placed in water, causing the sealing parts to burst

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