What is the working efficiency of concrete laser leveling machine?

There are two ways to control ground-based ground cracking: Control the location of the crack by installing a shrink seam (the crack width cannot be controlled) Control the crack width by installing a reinforcement device (the crack position cannot be controlled) (Vanse YZ30-4E Laser leveling  On Working Site)   Control the location of the crack by installing a shrink seam: Control the cracking position of the concrete slab; the width of the shrink joint or the crack in the joint is largely controlled by the joint spacing and concrete shrinkage. As the seam spacing and concrete shrinkage increase, the seam width also increases. Similar to the crack, if the seam width is close to about 0.9 mm, the efficiency of locking and transferring the aggregate between the aggregates and avoiding vertical displacement between the seams is greatly reduced. In view of this, many designers use load-conducting designs such as force-transmitting rods, force-transmitting sheets, or continuity-enhancing devices at the shrink seam position to ensure good load transfer and limit vertical displacement between seams. Care must be taken when using the above-mentioned one crack control method on the same floor. If a large number of reinforcing devices pass through the expansion joint, the seam will become too hard to crack and open as designed. When the shrink seam is unable to be activated (ie, cracked and opened) due to the action of the reinforcing device, cracking at a non-seamed portion or a random position is generally generated.

    Wear: Regularly check the surface wear of the drive belt. If the belt surface has obvious cracks, peeling, or is worn to less than two-thirds of its original thickness, it is necessary to consider replacing it. For example, a new drive belt is 10 mm thick. When it is worn to less than 6-7 mm, its strength and transmission efficiency will drop significantly, and it is easy to slip. Observe whether there is wear or tear on the edges of both sides of the belt. Edge wear may be caused by misalignment of the pulley or excessive belt tension. Once the edge is damaged, the belt may be out of the groove during operation, resulting in interruption of power transmission. Elasticity and tension changes: Press the belt by hand to check its elasticity. If the belt loses its elasticity and becomes stiff, it may be because the belt is aging or has been under high load for a long time. In this case, the belt cannot effectively buffer and transmit power during transmission, which may easily lead to unstable power transmission. It is also important to check the tension of the belt. Appropriate tension can ensure good contact and power transmission between the belt and the pulley. If the belt is too loose, there will be obvious slippage. By observing the rotation of the pulley and the movement of the belt, it can be found that when the pulley rotates, the belt may slip on the pulley instead of rotating synchronously. If the belt is too tight, it will increase the wear of the belt and pulley, and will bring additional loads to components such as the motor and bearings. A belt tension meter can be used to accurately measure the belt tension. When the tension exceeds the specified range, the belt needs to be adjusted or replaced. Abnormal noise and vibration: When there is a problem with the drive belt, abnormal noise such as "chirp" or "snap" will be generated during the operation of the trowel. This noise is usually caused by abnormal friction between the belt and the pulley, which may be caused by belt wear, looseness, or impurities such as oil stains. At the same time, it will be accompanied by vibration, which can be felt by touching the body of the trowel or the bracket near the drive component. If the abnormal noise and vibration persist and are related to the belt after excluding other component failures, then the belt needs to be replaced.     Wear and elongation: Check the wear of the chain links. If the rollers, sleeves and pins of the chain links are worn out, the pitch of the chain will increase, causing the chain to elongate. Generally speaking, when the chain elongates by more than 3% 5% of the original length, the accuracy and stability of power transmission will be affected. For example, a chain with an original length of 1 meter is prone to tooth skipping when it is elongated by more than 30 50 mm. Observe the side wear of the chain. If the side of the chain is severely worn during the meshing process with the sprocket, it will cause poor meshing between the chain and the sprocket, increasing the risk of the chain coming off the chain. This can be judged by observing whether there are shiny wear marks on the side of the chain. These shiny areas indicate that the friction between the chain and the sprocket at this part is abnormal. Sprocket wear: The sprocket of the transmission chain also needs to be checked. If the tooth profile of the sprocket is worn, the top of the tooth becomes sharp or the tooth groove becomes wide, it will affect the meshing effect of the chain and the sprocket. When the tooth wear exceeds a certain limit (such as tooth thickness wear exceeding 10% 15%), it is necessary to replace the chain and sprocket at the same time, because the old chain and the worn sprocket cannot guarantee good power transmission and will accelerate the wear of the new chain. Lubrication and operating status: Good lubrication is the key to the normal operation of the chain. If the chain becomes dry and stuck during operation, it may be due to insufficient lubrication or lubricant failure. At this time, check the chain's lubrication system and add or replace the appropriate lubricant. If the chain still does not run smoothly under normal lubrication, such as jamming, tooth skipping or abnormal noise (such as "clicking"), it may be that the chain or sprocket is severely worn and needs to be considered for replacement.

Compared with manual work, laser leveling machines are more efficient and effective, so more and more people are choosing laser leveling machines. So do you know why the price difference between laser leveling machines is so big? The editor will give you a brief introduction, let's take a look. The main reason why the prices of laser leveling machines vary in the market is the difference in quality and brand. Many products look very similar, but when you actually use them, you will find that these products actually seem to be somewhat different. Learn to conduct a comprehensive analysis of the quality of the products, so that you can better Make sure you end up buying a good product. Of course, you still have to make comparisons when faced with different prices. Features of an excellent laser leveler: 1. The leveling principle of the laser leveling machine is achieved by using precision laser technology, closed-loop control technology and a highly precise hydraulic system, under the automatic control of a computer. This is its most prominent feature that distinguishes it from other floor construction processes. . 2. The leveling principle of the laser leveling machine is to rely on the hydraulically driven leveling head to cooperate with the laser system and computer control system to complete the leveling work while automatically leveling. The leveling head is equipped with an integrated scraper, vibrator and leveling plate, which integrates all leveling, leveling, vibration and compaction work into one and completes it at one time. The computer control system automatically adjusts the height 10 times per second in real time, and the balanced designed vibrator has a vibration frequency of 3,000 times per minute. 3. The laser transmitter used to control the ground elevation is arranged independently. In this way, the floor elevation is not controlled by the template and does not produce cumulative errors. 4. The laser leveling machine can also automatically control the longitudinal and transverse slopes, which is also completed by the laser system, computer system, hydraulic system and mechanical system. For complex-shaped floors with high requirements such as drainage, a three-dimensional special-shaped ground treatment system can also be selected.