Design and manufacture of concrete laser leveling machines

In the field of concrete construction, concrete laser leveling machine (concrete laser leveling machine or concrete laser leveler) has become a key equipment to improve construction efficiency and quality. With the vigorous development of the construction industry, the demand for high-precision, large-area concrete construction continues to grow, and the application of concrete laser leveling machine is becoming more and more extensive. According to a market research report, the global concrete laser leveling machine market size is expected to reach US$1.76 billion in 2025, with an annual growth rate of approximately 11.4%. During long-term high-intensity use, how to extend the service life of the concrete laser leveling machine has become the focus of many users. This is not only related to the return on equipment investment, but also affects the smooth progress and cost control of construction projects.   After each operation with a concrete laser leveling machine, timely cleaning is essential. Since the equipment will be exposed to a large amount of concrete, mud and other impurities during operation, if it is not cleaned in time, these substances will adhere to the surface of the equipment and key components, accelerating component wear. For example, the body shell, leveling blade, vibrating device and other parts can be washed with a high-pressure water gun (but it should be noted that it is strictly forbidden to directly aim the water gun at the mesh part of the body to prevent water from entering the body and causing a short circuit) to remove the concrete residue and dust on the surface. For some stubborn stains that are difficult to wash off, use a soft cloth dipped in a neutral detergent dilution to wipe. Do not use strong alkali or strong acid cleaning agents to avoid corrosion of the paint and electroplating layer on the surface of the equipment, affecting the appearance and reducing the protective performance. Regularly check the connection and tightening of each component. During the operation of the equipment, the connecting bolts may become loose or even broken due to factors such as vibration and impact. For example, the connecting bolts of the frame, walking mechanism, laser transmitting and receiving device of the laser leveling machine should be carefully checked before and after each operation. If they are loose, tighten them in time. If the bolts are broken, they need to be replaced immediately. At the same time, check whether there is leakage in all parts of the equipment, including engine oil, coolant, hydraulic oil of the hydraulic system, etc. Once leakage is found, the cause should be promptly investigated and repaired to avoid problems such as poor lubrication and overheating of components due to oil leakage, which will affect the service life of the equipment. The timely replacement of wearing parts is the key to ensuring the continuous and stable operation of the equipment. For example, the leveling scraper, vibrator, tires (or rubber tracks) of the leveling machine will wear faster during frequent use. Generally speaking, the wearing parts should be checked after each use. If the wear exceeds the prescribed limit, they should be replaced immediately. Even if the wearing parts do not seem to be damaged during normal use, it is recommended to replace them every six months to ensure that the overall performance of the equipment is not affected. For example, a severely worn leveling scraper cannot effectively scrape the concrete, which will cause the ground flatness to decrease, and will also increase the workload of other parts of the equipment, accelerating the overall loss of the equipment.   In a high temperature environment, the concrete laser leveling machine faces many challenges. The engine is prone to overheating, resulting in power reduction and increased wear of parts. Therefore, when constructing in high temperatures in summer, first ensure that the engine cooling system is working properly. Before daily operation, check the coolant level and add it in time if it is insufficient; regularly clean the dust and debris on the surface of the radiator to ensure that the heat dissipation duct is unobstructed. When the engine temperature is too high, you should choose a cool area to stop and cool down. Do not rush to add cooling water. You need to let the engine idle for a while and add it after the temperature drops slightly to prevent the engine cylinder from cracking due to excessive temperature difference. At the same time, high temperature will also affect the performance of the hydraulic system. Check the hydraulic oil temperature frequently. If the oil temperature is too high, stop the machine for a rest to avoid long-term operation of the equipment at high temperatures. For example, in some southern regions during summer construction, if you do not pay attention to the heat dissipation of the equipment, it may cause the hydraulic system seals to age faster and leak oil, which will seriously affect the normal use of the equipment. High humidity environment can easily cause the metal parts of the concrete laser leveling machine to rust and corrode, especially when constructing in coastal areas or rainy seasons. To cope with high humidity environments, the equipment should be parked in a dry place and avoid being placed in the open air. If it is unavoidable to operate in a humid environment, anti-rust oil can be applied to the surface of the equipment, especially to parts that are prone to rust, such as the frame and chassis. At the same time, the electrical circuit should be checked regularly to prevent short circuit failures caused by moisture. For the battery of the equipment, it is necessary to keep it clean and dry, check the electrolyte level and density regularly, and replenish distilled water in time to ensure good battery performance. For example, if the laser leveling machine used for a long time in a high humidity environment does not pay attention to anti-rust treatment, it may cause problems such as frame rust and strength reduction in a short period of time, affecting the safety and service life of the equipment. Concrete contains alkaline substances. If the protection is not appropriate during long-term contact, it will cause corrosion to the components of the concrete laser leveling machine. For parts that are in direct contact with concrete, such as leveling blades, vibrating devices, etc., they can be made of corrosion-resistant materials or undergo special surface treatment to improve their resistance to alkali corrosion. After each operation, clean the equipment thoroughly to remove residual concrete and prevent alkaline substances from adhering to the surface of the equipment for a long time. In a high-alkaline environment, attention should also be paid to the lubrication system of the equipment, and lubricating oils and greases with good alkali resistance should be selected and replaced regularly to ensure that all moving parts are well lubricated and reduce the occurrence of failures caused by corrosion and wear. For example, in the construction of some industrial plant floors, due to the strong alkalinity of concrete, if effective protective measures are not taken, the key components of the equipment may be severely corroded in a short period of time, shortening the service life of the equipment.   Strictly operate in accordance with the rated working parameters of the concrete laser leveling machine to avoid operating in a condition that exceeds the equipment's bearing capacity. Overload operation will cause excessive pressure on the engine, hydraulic system, transmission components, etc., accelerate the wear of parts, and even cause equipment failure. For example, behaviors such as leveling thickness exceeding the maximum thickness specified by the equipment and forced operation on a site with a large slope will cause damage to the equipment. As an equipment manager, you should ensure that the operator is familiar with the equipment performance and operating procedures, and strictly prohibit illegal operations. Before construction, arrange construction tasks reasonably according to actual working conditions to ensure that the equipment operates stably within the normal load range. During the operation of the equipment, try to ensure smooth operation and avoid violent operations such as sudden acceleration, sudden braking and frequent steering. Sudden acceleration and sudden braking will cause the engine and transmission system to bear greater impact force instantly, which may easily cause damage to parts; frequent steering will aggravate the wear of tires (or tracks) and steering mechanisms. After starting the equipment, the engine should be allowed to idle for a period of time to allow all parts to be fully lubricated before operation. During the leveling operation, keep the equipment moving at a uniform speed to avoid speed fluctuations, which can not only ensure the construction quality but also reduce the wear of the equipment. For example, when driving a concrete laser leveler, smoothly controlling the throttle and steering wheel can effectively extend the service life of key parts of the equipment. The correct start and stop sequence also has an important impact on the service life of the concrete laser leveler. Before starting the equipment, check the environment around the equipment to ensure that there are no obstacles; check whether the liquid levels of fuel, engine oil, coolant, hydraulic oil, etc. are normal, and whether the indications of various instruments are normal. When starting, first turn the key to the power-on position, wait for the instrument self-check to complete, and then start the engine. After the engine is started, let it idle for a few minutes, observe the engine sound, vibration and whether the display of each instrument is normal, and then proceed to the next step after confirming that it is correct. When shutting down, first park the equipment on a flat and solid ground, lower the working device to the lowest position, and then turn off the engine. If the equipment is not used for a long time, the equipment should be sealed and maintained in accordance with the requirements of the equipment manual, such as draining fuel and coolant, lubricating and protecting key parts, etc. For example, the wrong starting method, such as forcibly starting the engine before the equipment completes the self-check, may damage the engine control system and affect the normal use of the equipment.   The hydraulic system is an important part of the concrete laser leveling machine, and regular maintenance is essential. Hydraulic oil will be contaminated and its performance will deteriorate during use, so the hydraulic oil should be replaced regularly. Under normal circumstances, the hydraulic oil should be replaced every 1,000 working hours or so. The specific replacement cycle can be adjusted appropriately according to the equipment use environment and the oil quality monitoring results. When replacing the hydraulic oil, use a clean container to hold the oil. The hydraulic oil must be filtered through the oil filter before adding it to the hydraulic oil tank to ensure that the oil is clean. At the same time, clean the hydraulic oil radiator regularly to ensure good heat dissipation and prevent the hydraulic system from malfunctioning due to excessive oil temperature. In addition, the replacement cycle of the hydraulic oil filter should also be appropriately shortened, generally 750 hours is appropriate. When replacing a new filter, check carefully. It is strictly forbidden to use a deformed, contaminated or rusted filter. For example, at some construction sites, due to the harsh environment, the hydraulic oil is easily contaminated by dust and impurities. If the filter and hydraulic oil are not replaced in time, it may cause blockage, leakage and other faults in the hydraulic system, seriously affecting the normal operation of the equipment. Regularly check the electrical system of the concrete laser leveling machine to ensure that all electrical components are firmly connected and the circuits are not damaged or aged. Check the performance of the laser transmitting and receiving device to ensure that the laser signal is stable and accurate. Start the engine once every two months, charge the battery, and run all hydraulic actuators, such as rotary hydraulic motors, telescopic cylinders, etc., to prevent battery loss and rust and jamming of hydraulic system components. Do not remove the battery from the machine at will to avoid the loss of internal software program failures in the equipment control. At the same time, pay attention to check the grounding of the electrical system to ensure that the grounding is good to prevent safety accidents caused by leakage. For example, if the electrical line is aging and damaged, it may cause a short circuit, causing a fire, and endangering the safety of equipment and personnel. Perform a comprehensive performance test on the concrete laser leveling machine every once in a while (such as half a year or a year). The test content includes key performance indicators such as leveling accuracy, work efficiency, engine power, and hydraulic system pressure. Through testing, potential problems with the equipment can be discovered in time, and targeted repairs and adjustments can be made. For example, if the leveling accuracy is found to be reduced, it may be due to laser system failure, wear of the leveling blade, or looseness of the mechanical parts of the equipment. It is necessary to check and repair them one by one to ensure that the equipment always maintains a good working condition and extends its service life. Click the below to jump immediately!!!     ARMOUR JOINT CONCRETE LASER LEVELING MACHINE LIGHT TOWER POWER TROWEL SLIPFORM MACHINE STEEL FIBER TOPPING SPREADER TRACKED MINI DUMPER

Super-flat flooring is a roadway area where forklifts are permanently used on the ground. It is usually classified as "super-flat flooring". It uses a high-precision laser leveling machine to pave and level newly poured concrete and combine it with certain floor construction techniques. , a kind of floor that meets certain specific use requirements; super flat floor is the highest specification and highest standard advanced floor in the world. It is designed to improve the flatness and wear resistance of the ground and extend the service life of the ground. . So, what are the advantages of super flat floors compared to ordinary floors? Diyi Construction will introduce it to you from the following three aspects. 1. Different equipment and instruments In order to ensure the flatness of the ground, many factors need to be considered in the design of the super-flat floor process, including the working time of the instruments and equipment and the selection of construction tools. Laser leveling, infrared detection and ultrasonic leveling technologies are generally used in super-flat floor construction, while ordinary floor construction does not require so many equipment and instruments. 2. The flatness of the ground is different. Super-flat floors generally use laser leveling machines to replace traditional manual leveling of concrete. The ground elevation can reach laser-level accuracy. Lasers are used to control the levelness and flatness of the ground, so as to achieve true leveling. super flat floor. The flatness of ordinary concrete floors generally only reaches 5mm/2m, while the flatness of super-flat floors generally refers to the flatness of 3~4mm/2m or higher. It can be seen that the flatness requirements far exceed the general standards of our country's floors. 3. Different construction techniques. Super-flat floors abandon the traditional practice of constructing the concrete base and surface layers separately. They use a special laser leveling machine and polishing technology to process the concrete into a high-density, high-gloss floor. To a large extent, It reduces the problems of cracks and hollows caused by poor combination between the base layer and the surface layer, and also allows the forklift to run more smoothly. Relatively speaking, ordinary floors are relatively poor and can only meet general design requirements. They cannot meet conventional requirements for the maximum bearing capacity of the ground and the smooth operation of forklifts. In addition, ordinary floors are more likely to have cracks, hollows, sand and dust in the future. Because of the special technology of the super flat floor, the surface hardness and flatness of the floor are extremely high, which prolongs its use time. It is widely used in large warehousing centers, logistics centers, comprehensive distribution centers in the retail industry, ultra-narrow lane warehouses, and railway transportation reserves. Centers, cargo terminals, TV program studios, ice rinks, production workshops using precision instruments and equipment, etc. Industrial workshops that require special flatness on the ground, aerospace manufacturing centers, etc.

    The key to adjusting laser leveling parameters is to "take concrete properties as the basis and laser benchmark as the core". It is necessary to achieve a balance between flatness and efficiency through three steps: matching material conditions, optimizing mechanical parameters, and adjusting the laser system.   Concrete slumpand Initial setting timeIt is the fault that determines all parameters. Different states require corresponding different settings, otherwise "over-vibration analysis" or "leveling failure" will occur. Specific status Core Impact Key parameter adjustment direction High slump (≥180mm) Strong fluidity, easy to segregate and produce sand 1. Reduce the vibration frequency (3000-4000 times/minute); 2. Slow down the driving speed (3-5m/min); 3. Reduce the scraper/warehouse pressure depth Medium slump (120-180mm) Moderate fluidity, easy to level 1. The vibration frequency is set to 4000-5000 times/minute; 2. Travel speed 5-8m/min; 3. Set the scraper/stack pressure depth to 5-10mm Low collapse (≤120mm) Poor fluidity, easy to honeycomb, uneven surface 1. Increase the vibration frequency (5000-6000 times/minute); 2. Slow down the driving speed to 2-4m/min; 3. Appropriately increase the scraper/warehouse pressure depth (10-15mm) After determining the foundation direction according to the concrete state, it is necessary to make detailed adjustments, vibration, walking, leveling. The three core parameters are the key to determining flatness. Vibration frequency: The core function is to make the concrete dense. If the frequency is too low, it is easy to hollow out, and if it is too high, it is easy to segregate. It is the first choice for conventional projects.4000-5000 times/minute. For thick concrete (≥200mm), the speed can be appropriately increased to 5500 times/minute, and for thin floors (≤100mm), it needs to be reduced to below 3500 times/minute to avoid vibrating dark and shallow layers. Vibration depth：The thickness of concrete pouring needs to be covered 1.2-1.5 times. For example, if the thickness of the poured ground is 150mm, the vibration depth should be set to 180-225mm to ensure that the upper and lower layers of concrete are tightly combined without stratification. Driving speed: Too fast will result in insufficient leveling and vibrating of the concrete, while too slow will affect the construction efficiency. It is recommended to follow the "Slow start, constant speed, slow stopPrinciple, normal speed is controlled at 5-8 m/min, the speed needs to be reduced by 2-3m/min in turning or corner areas to avoid edge abnormalities caused by centrifugal force. Walking path:use"Overlapping Paths", overlapping working width is200-300 mm, to prevent missing areas, especially suitable for large-area floor construction. Scraper/Neck Height：Based on the "reference signal" of the laser receiver, the initial height of the scraper must be higher than the design elevation.5-10mm high(Preset vibration subsidence amount), the warehouse height is slightly lower than the scraper (responsible for secondary finishing and leveling). Adjust：The consistency of the laser receiver determines the response speed of the equipment with high deviation. The large flat ground is set to "Medium sensitivity" (trigger adjustment when the deviation is ±2mm), corner or complex area setting "High sensitivity" (Adjustment is triggered when the deviation is ±1mm) to avoid surface depression caused by excessive adjustment. The premise for all parameter adjustments is that the laser reference is "accurate". If the laser system is offset, even the best mechanical parameters cannot guarantee flatness. Place it on a hard surface away from vibration sources (such as rollers and pump trucks), and use a spirit level to ensure that the transmitter is level (the bubble is in the center). After turning on the transmitter, use a tape measure or laser range finder to check whether the laser elevation within the 360° range of the transmitter is consistent (the workpiece must be ≤1mm). If the deviation is large, it needs to be corrected using the leveling screws at the bottom of the transmitter. Stop at a benchmark point with a known elevation (such as a poured lawn concrete block) and manually adjust the height of the receiver so that the display shows "Benchmark Elevation". Move the device to another reference point and check whether the display elevation is consistent with the actual height. If the deviation is greater than 1mm, open the host architecture panel and adjust the connection parameters between the receiver and the host. The chassis deviation should be ≤1mm.   The adjustment logic for the best leveling effect is "First determine the benchmark (laser layout) → then match the materials (adjust parameters according to collapse) → finally fine control (vibration, movement, flattening and refinement). After adjustment, it is recommended to conduct a trial operation on a small area (2-3㎡) first, check the flatness with a 2-meter ruler (the gap is qualified if it is ≤3mm), and then use the error parameters based on the trial operation results to avoid rework caused by direct large-scale construction. Concrete slump Vibration frequency Travel speed Scraper/stack pressing depth Laser receiver is the same ≤120mm (low slump) 5000-6000 (times/minute) 2-4 (m/min) 10-15 (mm) High deviation (trigger adjustment when deviation is ±1mm) 120-180mm (medium slump) 4000-5000 (times/minute) 5-8 (m/min) 5-10 (mm) Middle deviation (trigger adjustment when deviation is ±2mm) ≥180mm (high slump) 3000-4000 (times/minute) 3-5 (m/min) Appropriately reduce (mm) Middle deviation (trigger adjustment when deviation is ±2mm)   Note: The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.