Concrete Laser Levelling Machine

Equipment inspection
Mechanical parts: Check whether the overall structure of the fuselage is deformed or cracked, and whether the bolts and nuts of each connection part are tightened to prevent the parts from being loose during operation. Check the flatness and wear of the scraper. If the scraper is deformed or seriously worn, it will affect the leveling effect and need to be replaced or repaired in time. At the same time, check whether the components of the vibration system are normal, including whether the connection of the vibration rod is firm and whether there is damage, to ensure that the vibration function can play normally.
Laser system: Ensure that the battery power of the laser transmitter is sufficient, or the connected power supply is stable, to ensure that it can continue to emit laser signals stably. Check whether the laser receiver can receive the signal normally, clean the sensitive window of the receiver, and avoid dust, stains and other obstructions affecting the signal reception. Also check whether there are obstacles between the laser transmitter and the receiver to ensure that the signal transmission path is smooth.
Hydraulic system: Check whether the oil level of the hydraulic oil is within the normal range. If the oil level is too low, the hydraulic system may not work properly. If the oil level is too high, the system pressure may be too large. Check the quality of hydraulic oil, if the oil is found to be deteriorated, emulsified or have impurities, it should be replaced in time. At the same time, check whether there is leakage in the hydraulic pipeline. If there is leakage, repair or replace the pipeline in time to prevent hydraulic oil leakage from affecting the operation of the equipment.
Electrical system: Check whether the power cables and control lines of the equipment are damaged, aging, short circuit and other problems. If there is a problem, replace or repair the lines in time to prevent electrical faults and even safety accidents. Test whether the control buttons and switches are sensitive and effective, and whether the instrument display is normal to ensure that the operator can accurately control the operation of the equipment.
Site preparation
Clean the site: remove debris, construction waste, stones, etc., in the construction site to avoid these objects affecting the driving and leveling operation of the laser leveling machine, while preventing them from damaging the parts of the equipment.
Ground treatment: Preliminary leveling of potholes and bumps on the ground. For soft ground areas, compaction or reinforcement is required to prevent the laser leveling machine from sagging during operation, affecting the leveling accuracy and equipment safety.
Measurement payout: According to the construction drawings and design requirements, the measuring instrument is used to release the construction boundary line and control point in the site to provide a benchmark for the operation of the laser levelling machine to ensure that the levelling ground meets the design size and position requirements.
Materials and personnel preparation
Concrete preparation: Ensure that the concrete used for construction is ready and meets the construction requirements, including the strength level and slump of the concrete. Communicate the supply time and speed with the concrete supplier in advance to ensure the continuous supply of concrete and avoid the equipment shutdown due to the timely supply of concrete.
Staffing: Arrange professional operators, operators should be familiar with the operation process and safety precautions of the laser levelling machine, with a certain troubleshooting ability. At the same time, it is equipped with auxiliary personnel, such as workers responsible for concrete distribution, personnel to assist in measurement and inspection, etc., to ensure that the construction process is smooth.

Industrial building
Factory floor: Industrial plants usually need a large area of flat ground to place production equipment, cargo transportation and other operations. The laser leveling machine can quickly and efficiently complete the leveling work of the large area of the factory floor, ensure the flatness and levelness of the ground, provide a good foundation for the installation and operation of the production equipment, and also help the smooth running of the cargo transport vehicle and improve production efficiency.
Warehouse floor: For logistics warehouses, the flatness of the ground directly affects the stacking and handling of goods. The laser levelling machine can ensure the level of the warehouse floor, facilitate the use of forklifts and other handling equipment for loading, unloading and storage of goods, reduce the damage of goods and handling difficulties caused by uneven ground, and improve the space utilization rate of the warehouse and the efficiency of logistics operation.
Commercial building
Shopping centers: The ground of shopping centers needs to have good smoothness and aesthetics to provide a comfortable shopping environment. The laser leveling machine can accurately control the flatness of the ground, make the laying of the floor tile or floor more smooth and beautiful, reduce the walking inconvenience and safety hazards caused by the uneven ground, and also help to improve the overall quality and commercial value of the building.
Commercial square: Areas such as the outdoor floor or indoor atrium of a commercial square usually require large areas of concrete pouring and leveling. The laser leveling machine can quickly complete the leveling work in these areas, provide a smooth foundation for the subsequent ground decoration and landscape layout, and meet the requirements of the commercial square for the ground smoothness and aesthetics.
Transportation infrastructure
Airport runway: The airport runway has very high requirements for the flatness and levelness of the ground, which is directly related to the safety and operation efficiency of the aircraft. The laser leveling machine can complete the leveling work of runway concrete with high precision, ensure that the runway surface is smooth and smooth, in line with aviation standards, reduce the turbulence and vibration of aircraft takeoff and landing, and improve the safety and comfort of flight.
Expressway: In the construction of expressway, laser levelling machine can be used for the concrete levelling of base and surface layer. By accurately controlling the smoothness, it can improve the driving comfort and durability of the road surface, reduce the resistance and wear of the vehicle when driving, extend the service life of the road surface, and also help to improve the drainage performance of the road and reduce the damage of water on the road surface.
Public building
Sports venues: The ground of sports venues, whether used to host sports events or spectator areas, needs to have good smoothness and stability. The laser leveling machine can meet the strict requirements of the stadium on the ground smoothness, provide a good competition environment for the athletes, but also provide a comfortable and safe viewing space for the audience.
Hospital: The ground inside the hospital needs to be smooth and smooth to facilitate the movement of medical equipment and the transfer of patients. The laser leveling machine can ensure the high-quality leveling of the hospital floor, reduce the risk of medical accidents caused by the uneven ground, and also help to maintain the cleanliness and health of the ground, and provide a good working and medical environment for patients and medical staff.

Equipment debugging and maintenance
Laser system calibration: Before use, the laser transmitter and receiver should be strictly calibrated to ensure that the laser beam transmission Angle and receiving accuracy are accurate, and an accurate and stable reference plane is established. During the construction process, if the laser signal is found to be biased or unstable, it should be stopped immediately for inspection and recalibration.
Mechanical parts inspection: Regular inspection of the scraper, vibrating rod and other mechanical parts of the leveling machine to ensure that its installation is firm, no deformation and wear. If the scraper wear exceeds the specified range, it will affect the scraping effect and should be replaced in time; If the vibration rod is eccentric or the vibration frequency is abnormal, it will lead to uneven vibration of the concrete, and then affect the leveling accuracy, and it needs to be repaired or replaced in time.
Overall maintenance of equipment: Do a good job of daily maintenance of equipment, including cleaning, lubrication, fastening, etc. Regular comprehensive inspection and maintenance of the equipment, maintenance of the hydraulic system, transmission system and other key parts to ensure that the equipment components are in good running condition, reduce the leveling accuracy deviation caused by equipment failure.
Operating specification enforcement
Uniform speed: When driving the laser leveling machine, the operator should keep a uniform speed forward, the speed is generally controlled at about 3-5 meters per minute, to avoid emergency stops, sharp shifts or frequent shifts. Too fast speed may lead to insufficient concrete leveling, too slow speed may cause excessive vibration of concrete, will affect the leveling accuracy.
Maintain the correct working route: according to the shape and size of the construction site, plan a reasonable working route, as far as possible to ensure straight driving and continuous operation, reduce the number of turns and reversals. Appropriate overlap should be maintained between adjacent working areas, and the overlap width is generally 10-20 cm to ensure that there is no leveling dead Angle and ensure the flatness of the entire construction surface.
Real-time monitoring: the operator should always pay attention to the display data of the laser receiver and the operating status of the equipment, and adjust the height of the scraper and the frequency of vibration in time according to the actual situation. If the leveling accuracy deviation is found, measures should be taken immediately to adjust, if necessary, stop to check and recalibrate.
Concrete quality control
Slump control: strictly control the slump of concrete, the general slump of pumped concrete should be controlled between 120-180 mm. If the slump is too large, the concrete will be too thin and soft, and it is easy to flow in the leveling process, which affects the leveling accuracy. The slump is too small, the concrete fluidity is poor, it is not easy to be leveled, and may also lead to vibration compaction.
Mixing uniformity: Ensure that the concrete is mixed evenly during the mixing process to avoid segregation. The isolated concrete will cause the performance of each part is inconsistent, and can not form a uniform surface in the leveling process, affecting the leveling accuracy.
Construction environment management
Site flatness: Pre-smooth the site before construction to ensure that the foundation flatness error of the site is within the allowable range, generally controlled within ±5 cm. For potholes or large slope of the site, should first fill, compaction and other treatment, for the laser leveling machine to create good working conditions.
Ambient temperature and wind speed: Ambient temperature and wind speed have a great influence on the setting time and surface water evaporation of concrete. In high temperature and strong wind weather, the surface water of concrete evaporates quickly, and the surface shrinkage cracks are easy to appear, which affects the leveling accuracy. Therefore, try to avoid construction during high temperature periods (such as temperatures exceeding 35 ° C) and windy weather (wind speed exceeding 5).

Cleaning aspect
Fuselage cleaning: After each use, the concrete, dust and debris on the surface of the fuselage should be removed in time. In particular, the parts that are in direct contact with the concrete, such as the scraper and vibrator, should be carefully cleaned to prevent the concrete from adhering to the above after drying, affecting the next use. You can use a high pressure water gun or a special cleaning tool to clean up, but take care to avoid water entering the electrical system.
Laser system cleaning: Regularly clean the lens of the laser transmitter and receiver to ensure that its surface is free of dust, stains, etc., so as not to affect the accuracy of laser signal transmission and reception. When cleaning, gently wipe with a clean, soft cloth to avoid scratching the lens.
Component inspection aspect
Mechanical component
Scraper inspection: Check the wear of the scraper. When the blade wear exceeds 5mm, repair or replacement should be considered. At the same time, check whether the connection part of the scraper is loose, and tighten the bolts in time if it is loose.
Vibrator inspection: check whether the vibration frequency and amplitude of the vibrator are normal, and whether there is eccentric vibration. If it is found that the vibration of the vibrator is abnormal, the motor, bearing and other parts should be checked in time, and the replacement should be timely if there is damage.
Tire inspection: Check whether the pressure of the tire is normal, and whether the tire surface is damaged, cracked and excessive wear. Insufficient air pressure will affect the driving stability and leveling effect of the equipment, and serious tire wear may lead to safety hazards, requiring timely inflation or replacement of the tire.
Electrical component
Circuit check: Periodically check the electrical circuit of the equipment to see whether there is damage, aging, loose and other conditions. If the line is damaged, it should be bandaged or replaced in time; If the line connector is loose, tighten it again to ensure the safety and reliability of the electrical system.
Sensor inspection: Check all kinds of sensors such as laser receivers and tilt sensors to ensure that they are firmly installed and work properly. If there is a sensor fault or accuracy deviation, it should be calibrated or replaced in time.
Hydraulic component
Tubing inspection: Check whether there is leakage and damage of hydraulic tubing, and whether the tubing joints are well sealed. If oil pipe leakage is found, the seal or oil pipe should be replaced in time to prevent hydraulic oil leakage affecting the normal operation of the equipment.
Hydraulic oil check: check the oil level and oil quality of hydraulic oil regularly. When the oil level is too low, the hydraulic oil should be added in time, when the oil quality is poor or polluted, the hydraulic oil should be replaced in time, generally every 500-1000 hours or about half a year to replace the hydraulic oil.
Lubrication maintenance
Lubrication of key parts: according to the requirements of the equipment instruction manual, regularly lubricate each lubrication point. Such as the rotating shaft of the scraper, the bearing of the vibrating rod, the shaft of the walking wheel and other parts, generally every 20-50 hours of working time needs to be added grease to reduce the friction between the parts and extend the service life.
Chain and gear lubrication: For the chain and gear transmission parts on the equipment, it is necessary to regularly apply special chain oil or gear oil to ensure the smooth transmission and reduce wear and noise.
Storage requirements
Indoor storage: Store the laser leveler in a dry and ventilated indoor warehouse as far as possible to prevent the equipment from being exposed to natural factors such as wind, sun, and rain in the outdoor environment, and prevent electrical components from being damp and metal parts from rusting.
Cover protection: If it is not possible to store it indoors, cover the equipment with canvas or special cover when storing it outdoors to prevent dust and debris from entering the inside of the equipment, and also play a certain role in sun protection and rain prevention.