Proper operation of excavator excavation
1, smooth operation methodDuring the operation, the stability of the machine can not only improve work efficiency, prolong the life of the machine, but also can ensure the safety of operation (put the machine in a flat on the ground); the drive sprocket at the rear side of the front side than in good stability, and can prevent the final drive from the impact of external force on the ground track; the wheelbase is always greater than the track, so toward the good working stability, to avoid the lateral operation; to keep close to the mining machine, in order to improve the stability and mining excavator; if points away from the machine, due to move the focus of work is not stable; lateral excavation is than mining stability, if the mining point away from the center of the machine body, the machine will be more stable, so mining point and center of body should maintain a proper distance, so that a balanced and efficient operation.
4, the correct crushing operation, first of all, the hammer should be placed vertically on the object to be broken. At the beginning of the crushing operation, lift up the front part of the car about 5cm. When broken, the crushing head should always be pressed on the broken object. The crusher should stop the crushing operation immediately after the broken material has been broken. When crushing, the vibration will change the direction of the hammerhead gradually, so the bucket should be adjusted at any time, so that the hammer head is perpendicular to the surface of the broken object. When the hammer hit into the broken material, should change the broken position; in a place not broken continued for more than a minute, otherwise not only can damage the hammer, and the oil temperature will be abnormally high; for hard objects, should be gradually broken edge. It is strictly prohibited to crush the side edge of the rotor, and press the hydraulic hammer and use the hydraulic hammer as a chisel when the hammerhead is inserted.Concept: excavator, also called excavating machinery, is a kind of earthmoving machine that uses bucket to excavate material that is higher than or lower than the machine surface and is loaded into transportation vehicle or unloaded to the stacker. Excavators are mainly made of soil, coal, sediment, and soil and rocks that have been pre - loosened. From the development of engineering machinery in recent years, the development of excavator is relatively fast, excavator has become one of the most important construction machinery in engineering construction. The three most important parameters of excavator are operation weight (quality), engine power and bucket bucket capacity.
3, excavator operation walking right, should try to stop working device and close to the center of body, in order to maintain stability; the final drive on the back to protect the final drive. Avoid passing stumps, rocks and other obstacles as much as possible to prevent tracks from twistingIf the obstacle must pass, make sure that the center of the track is on the barrier. A mound, always working device supports the chassis, in order to prevent the body shaking even overturning. Avoid idling on the steep slope for a long time, otherwise the lubrication will be bad because of the change of the oil level angle. The long distance running of the machine will cause the inside of the heavy wheel and the final drive to produce high temperature for a long time. The viscosity of the engine oil will decrease and the lubrication will not work properly. Therefore, it is necessary to stop the engine frequently to cool down and prolong the life of the lower part of the engine. It is forbidden to carry out excavation operation by driving force of walking, otherwise excessive load will lead to early wear or damage of the components such as final drive, track and so on. When driving uphill, the wheel should be driven behind to increase the adhesion of the landing track. When you walk downhill, you should drive the wheel in front, so that the upper track is tight enough to prevent the car from slipping forward under the weight of the car when it is stopped. When walking on slopes should be placed in front of the working device to ensure the safety of parking, put the bucket gently into the ground, and the crawler put down block. When walking on steep slopes, slow down and turn left when you turn leftTrack, turn right track when you turn right. This pro can reduce the risk of turning on the slope.
2, noteworthy operationsThe hydraulic cylinder is arranged inside the buffer device, can gradually release pressure near the end of stroke; if subjected to impact loading at the end of stroke, the piston will directly touch the cylinder head or cylinder bottom, easy to cause the accident, so to the end of travel should as far as possibleRemaining space. Of bulldozer operation will cause the bucket and the work device is not a normal stress caused by rotary motion, distortion or even pin weld cracking, broken, should try to avoid such operations. Digging with the weight of the body will cause the abnormal state of the slewing bearing, and will produce strong vibration and impact on the chassis. Therefore, the hydraulic cylinder or hydraulic line will be damaged greatly. When loading heavy materials such as rocks, they should be unloaded near the bottom of the truck, or first loaded with earth, and then loaded with rock, so as not to unload at higher levels to reduce impact damage to the truck. When the caterpillar gets stuck deeper in the mud, a board is placed under the bucket, and the crawler is supported at the bottom of the bucket. Then the board is lowered under the caterpillar track and the machine is driven out.
