Points for attention in the work of wheel excavator
* : * : admin * : 2021-06-19 13:08:55 * : 3
The attention of wheel excavator in work
Brief explanation on the aspects of wheel excavator in work
1. In the process of digging, the wheel excavator should achieve "four prohibitions", that is: ① when the bucket does not leave the working face, it is forbidden to rotate according to the manual of the wheel excavator. ② No sharp turning is allowed. ③ It is forbidden to use the side of the bucket to scrape the earth pile. ④ It is forbidden to use the bucket to carry out side impact on the working face.
2. According to the rotation range of the boom of the wheel excavator, it should be controlled at 45 °-- sixty °， According to the weight of the wheel excavator, the tilt angle is controlled at 30 °-- forty-five ° between.
3. According to the wheel excavator, when going uphill, the crawler driving wheel should be at the back, when going downhill, the crawler driving wheel should be at the front, and the boom should be at the back. The boom is parallel to the track. The slewing mechanism should be in the braking state, and the bucket should not be more than 1 meter above the ground. Up and down the slope should not exceed 20 °， When going downhill, it should be low speed, and it is forbidden to change speed.
4. It is forbidden to arrange wheeled excavators in the upper and lower mining sections at the same time; When the working face rotates at the same time, the flat ground shall be selected and the obstacles in the passage shall be removed. If the working face moves on the soft ground, square wood shall be laid under the walking device.
5. It is forbidden to work under high-altitude erections such as electric wires. According to the wheel excavator, it is not allowed to work under the shutdown, and it is not allowed to stay in the space for a long time with a full bucket.
6. When the wheel excavator needs to stop on the slope, the bucket must be lowered to the ground, all control levers should be placed in the middle position, and the brake should be stopped, and wedges should be padded at the rear of the track or tire.
1) According to the technical condition of wheel excavator, it has a great influence on its productivity, especially the power performance of engine. In addition, when the bucket teeth are worn, the cutting resistance of the bucket will increase by 60% - 90%. According to the fire protection of the wheel excavator, the blunt bucket teeth should be replaced.
2) In the construction organization, the traveling route of the dump truck should be drawn up in advance, and the unnecessary ramps should be removed. According to the requirements of the wheel excavator, there must be an empty return road to avoid mutual interference when the dump truck goes in and out. Each running track shall be kept in good condition to facilitate the operation of dump truck.
3) Correct construction organization design. The number and bearing capacity of the dump trucks matched with the wheel excavator shall meet the requirements of the production capacity of the wheel excavator, and the capacity of the dump truck shall be an integral multiple of the bucket capacity of the wheel excavator. At the same time, double loading method should be adopted as far as possible, so that one truck can be loaded according to the wheel excavator, and then the next truck can be loaded. Because the two dump trucks are respectively parked on the arc line that can be reached according to the bucket unloading of the wheel excavator, so that the bucket can be loaded forward and the truck can be loaded, and the other truck can be loaded in reverse, so as to improve the loading efficiency.
4) According to the wheel excavator driver should have skilled operation technology, and try to use compound operation, in order to shorten the operation cycle time of wheel excavator.