Daily maintenance of lightweight portable steel bar bending and straightening machine is a key link to ensure stable performance and extend service life of the equipment. Its maintenance work needs to be carried out meticulously from multiple dimensions, covering cleaning, lubrication, component inspection, electrical system maintenance and other aspects. The correct maintenance process can not only ensure the efficient operation of the equipment, but also reduce the failure rate and improve construction safety.
Cleaning of lightweight portable steel bar bending and straightening machine is a basic step in daily maintenance. After each use, the steel bar debris, dust and oil stains remaining on the surface and inside of the machine body should be removed in time. If these debris accumulate for a long time, they may get stuck in the transmission parts or electrical interfaces, causing the equipment to run stuck or even short-circuit. When cleaning, use a dry brush or compressed air to clean the debris in the gap. For stubborn oil stains, wipe with a small amount of neutral detergent to avoid using corrosive solvents to damage the equipment housing or rubber parts. Pay special attention to the grooves of the bending and straightening molds. These locations are prone to residual iron filings and need to be carefully cleaned to ensure accurate positioning of the steel bars during the next operation.
Lubrication of the transmission system is one of the core points of maintenance. Lightweight portable equipment mostly uses gears, chains or worm gears for transmission. These parts will wear due to friction during high-frequency operations. Regular lubrication can reduce losses and reduce operating noise. During maintenance, according to the requirements of the equipment manual, apply an appropriate amount of lubricating oil or grease to the transmission gears, chains and other parts. For example, chain transmission needs to drip special chain oil every 2-3 operations to ensure that the chain rotates flexibly; the lubricating oil in the gearbox needs to be replaced regularly, usually every 200 hours of work or half a year. When replacing, the metal debris at the bottom of the box needs to be cleaned to avoid impurities from aggravating gear wear. During the lubrication process, care should be taken to avoid grease contamination of electrical components or operating handles to avoid affecting the controllability of the equipment.
Inspection and tightening of key components are important measures to prevent failures. The core components of the equipment, such as the bending shaft, straightening wheel, and clamp, may become loose or worn after long-term use. It is necessary to regularly check whether the bolts and nuts at the connection parts are firm. For example, if the fixing bolts of the bending shaft are loose, it may cause deviation of the bending angle or aggravate the vibration of the equipment; if the bearings of the straightening wheel are severely worn, it will affect the straightening accuracy of the steel bars and even cause abnormal noise. During the inspection, each component needs to be shaken one by one to observe whether there is obvious gap or abnormal displacement. For loose bolts, special tools should be used to tighten them according to the specified torque. Parts that are worn beyond the standard need to be replaced in time to avoid small problems from turning into systemic failures.
The maintenance of the electrical system is directly related to the safety and stability of the equipment. Portable devices are mostly powered by lithium batteries or external power supplies. The integrity of the power cord, plug and battery interface needs to be checked regularly. Check whether the power cord is damaged or aged, and whether the plug connection is loose to avoid equipment shutdown or short circuit due to poor contact. For lithium batteries, overcharging or discharging should be avoided. Clean the dust on the battery contacts before each charging. Disconnect the power supply in time after charging to prevent the battery from overheating. In addition, the control switches and sensors of the equipment also need to be tested regularly to ensure that the start-stop button, emergency stop device and limit switch function normally to prevent safety accidents caused by failure of electrical components.
The maintenance of the hydraulic system (if any) requires special attention to the oil state. Some light equipment uses hydraulic transmission to achieve bending and straightening actions. The cleanliness and oil level of the hydraulic oil directly affect the system performance. The oil level of the hydraulic oil tank should be checked every week to ensure that the oil is within the standard scale range. If it is insufficient, the same type of hydraulic oil should be added; the hydraulic oil should be replaced every 500 working hours or one year, and the oil tank and oil filter should be cleaned at the same time to prevent impurities in the oil from clogging the hydraulic valve or wearing the hydraulic cylinder seal. When replacing the oil, pay attention to the cleanliness of the environment to prevent dust from entering the system. After filling the oil, the equipment should be started and run dry for a few minutes to exhaust the air in the pipeline to ensure the smooth operation of the hydraulic system.
The storage environment and posture of the lightweight portable steel bar bending and straightening machine also have an important impact on the maintenance effect. When not in use for a long time, the equipment should be wiped clean and placed in a dry and ventilated warehouse to avoid humid environment causing rust on metal parts or moisture on electrical components. When storing, ensure that the equipment is placed horizontally to avoid long-term compression and deformation of the bending shaft or straightening wheel. For detachable parts, such as bending molds, straightening modules, etc., they can be stored separately and anti-rusted. Before using them again, check whether their installation interfaces are intact. In addition, the equipment should be kept away from heat sources and corrosive substances to prevent aging of the shell or corrosion of components.
Establishing maintenance record files is an effective means to achieve standardized maintenance. After each maintenance, it is necessary to record the maintenance time, maintenance content, replaced parts and oil models in detail. Through long-term records, the performance changes of the equipment can be tracked and potential problems can be discovered in time. For example, if a part is frequently loose or worn, it can be analyzed whether it is caused by improper operation or equipment design defects, so as to adjust the maintenance frequency or contact the manufacturer for improvement. Maintenance records can also be used as a reference for equipment maintenance to ensure that all maintenance work is carried out as planned and to avoid missing key maintenance steps due to negligence.
In short, the daily maintenance of lightweight portable steel bar bending and straightening machine must follow the principle of "cleaning in place, lubrication in time, careful inspection, and maintenance specifications", and ensure that the equipment is always in good operating condition through a systematic maintenance process. Operators need to be familiar with the equipment structure and maintenance points, integrate daily maintenance into work habits, and combine regular professional maintenance to maximize the effectiveness of the equipment and provide reliable guarantees for construction safety and efficiency.
