1. Observation inquiry method

Before the Concrete Mixing Plant maintenance, Preliminary analysis can be made according to the equipment life and the relevant models, asked the user what kind of repair and inspection have done before, and then make a thorough understanding and observe the phenomenon of failure carefully, make judgment, pay attention to wearing parts, use reliability.

2. Auditory method

When the concrete mixing plant is running, it will issue a regular and noisy sound, if the device fails, it will produce abnormal sound. In the maintenance, you can let the equipment in a different situation to run, and then make a auscultation of equipment failure, for example, for the crankshaft and link mechanism, you can use a long stethoscope to auscultate the abnormal sound; For the force and reaction force on the clearance between the keyway, There is irregular abnormal sound.

3. Touching method

The maintenance personnel can use the sense of touch to feel the equipment failure. For example: the motor overheating; by touching the pump's outlet hose, you can feel the water pressure of the passive, which means the pump is working properly; check the actual belt tightness, and the specific wear and tear of the friction surface; If the seal of the axial parts is not very good , the operation will be obvious vibration, or trembling and other phenomena, which will prove that whether the concrete mixing plant is working properly or not.

4. Olfactory method

If the work of the concrete mixing plant machinery equipment overload, there will be a peculiar smell, so the diagnosis of equipment failure can be carried out by virtue of the sense of smell. For example, if there is a mechanical overload on the running equipment, if the temperature rises, it will produce peculiar smell; if the non-metallic material emits a scorched smell, it indicates that the wire is damaged.

5. Replacement method

The so-called substitution method is to use a qualified assembly or component to replace damaged parts of concrete mixing plant. For the wearing parts and easily-torn parts, should be carried out periodic inspection and replacement.

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