Contact us

  • Add:NO.2588 Longwu Road,
            Xuhui District, Shanghai
  • Tel:+86-21-34686835 
  • Fax:+86-21-34686835
Home>>news>>The Related Parameters of the Backhoe Used Excavator

The Related Parameters of the Backhoe Used Excavator


The basic modes of operation consist of gully end mining, straight line, curve mining, maintain, super deep trench excavation, groove angle mining slope minging and so on. Operating weight is one of the three important parameters of the used excavator, and the three parameters are engine power, the bucket capacity and operating weight. The operation weight of backhoe used excavator determines the level of the excavator and the upper limit of the excavator digging force. If digging force exceeds the limitation, in the case of backhoe used excavator to skid, and pull forward, it is very dangerous.

For digging force of using this kind of used excavator, it is mainly divided into lower digging force and the bucket digging force. Both the two points of digging force for bucket tooth root, but at different power, forearm digging force from lower oil cylinder. The bucket digging force from the bucket cylinder of the used excavator. The size of the ground pressure determines the used excavator which is suitable for the ground condition of the work. Ground pressure refers to the machine weight on the ground pressure, expressed in the following formula, Ground pressure = weight present all the area of contact with the ground. It is very important to fit the appropriate segments on the used excavator. For crawler excavator, the standard of choosing the crawler should obey this: whenever possible, try to use the most narrow segments. Commonly used crawler type is tooth segment.

For the backhoe used excavator, walking speed and traction is important. Walking time roughly one over ten of the whole of their working time. In general, two speed can satisfy the walking performance of used excavator. The traction is a kind of force which is produced by walking of the excavators, it mainly depends on the walking motors excavator. These two walking performance parameters show that the maneuverability of used excavator walking and walking ability. All of these can reflect in the samples from various manufacturers. Climbing ability of the used excavator refers to the uphill and downhill, or in a solid, flat slope on ability to stop. There are two methods of said, they are Angle and percentage. Improve ability of used excavator refers to a steady improvement in the rated capacity or the smaller branch of a hydraulic lifting capacity rating. A steady improvement in the rated capacity is 75% of the tipping load. Hydraulic lifting capacity rating is 87% of hydraulic hoisting capacity.

Rotary speed refers to the excavator no-load, steady turning can be flat. Maximum speed means that the definition of rotating speed, it is not the point at which the starting and not the point at which the brake rotating speed of used excavator. That is to say, not the turning speed of the acceleration or deceleration. For general excavation, the used excavators in the range of 0 ° to 180 °, rotary motor acceleration and deceleration, when go to 270 ° to 360 °then the speed of rotation will be stable. Therefore, in the actual mining work, the turning speed of the defined above is unrealistic. That means it need actual turning performance of the used excavator is expressed by rotary torque acceleration and deceleration.