The performance parameters of the port crane refer to the parameters that represent the main technical performance indexes of the crane, which is not only the important design basis of the crane, but also related to the safety technical requirements of the crane. As for the performance parameters of port cranes, here are the following:
crane weight G
Self weight refers to the quality of the whole machine under the standard configuration, the unit is t or kg.
Lifting weight Q
Lifting weight refers to the weight of the lifting weight, the unit is kg or t. It can be divided into rated lifting capacity, maximum lifting capacity, total lifting capacity, effective lifting capacity, etc..
1. rated lifting capacity Qn
The rated lifting capacity is the sum of the materials that the crane can lift together with the separable spreader or the accessories (such as grab, electromagnetic sucker, balance beam, etc.).
2. total lifting weight Qz
The total weight of crane can lift the material together with the hanger and can be divided into long-term fixed on the crane sling (including hooks, pulleys, lifting wire rope and other load lifting trolley below) the sum of the quality.
3. effective lifting weight Qp
The effective weight is the net quality of the material that the crane can lift.
Lifting height H
Lifting height refers to the vertical distance between the top surface (or ground) of the crane running track to the limit position of the extraction device, and the unit is m. Usually, when the hook is applied to the center of the hook ring, the bucket and other containers are used to calculate the bottom of the container.
1. drop depth h
When the extraction device can be placed below the ground or the top of the track, its lowering distance is called the falling depth, that is, the vertical distance between the lowest working position of the spreader and the horizontal supporting surface of the crane.
2. lift range D
The lifting range is the sum of the lifting height and the falling depth, that is the vertical distance between the maximum and minimum working position of the spreader.
Span refers to the horizontal distance between the central track of the crane running track, the unit is m. The distance between the central track of the running track of the jib crane on the ground is called the gauge of the crane.
The magnitude of the crane is refers to between the rotary center line and plumb line fetching device horizontal distance, unit is m. The magnitude of a non rotating jib crane refers to the horizontal distance between the center line of the spreader to the rear axle of the arm or other typical axes. When the boom angle is the minimum, or the distance between the trolley position and the slewing center of the crane is the maximum, the amplitude is the maximum amplitude, otherwise the minimum amplitude.
The performance parameters of port crane is conducive to the design requirements require you to more fully understand the crane and the security technology, in the choice of basis can also help determine the performance parameters of the crane, the visible accumulation of knowledge is very necessary.