After the rapid development of the wind energy market in recent years, the wind energy resources in the plain area with good construction conditions have almost been developed. At present, wind turbine heavy haul transport carriers are being transported to the mountainous area and sea with difficult construction conditions. However, the mountain roads are narrow and the turning radius is small.

In order to effectively avoid the collision between the wind blade and the mountain, the wind blade must be transported in an inclined state. Therefore, Rui trailer's blade lifter for wind turbine appears in the market, and will greatly help for a transport company for such area to use.

BLADE LIFTER SPECIFICATIONS

Dimention: 10420*3400*3865mm

Lifting angle: 0-36 degree

Lifting mode: duel cylinder lifting

Rotate mode: 4 motor drive

Rotate of blade: 2 motor drive

Control: manual+wireless control

Counter weight size: 1600*1400mm

Shifting distance: 0-4000mm

Shifting mode: duel cylinder push

Weighing mode: 4 point weight

Capacity: 510 ton*m

Dead weight: 47,000kgs

HOW DOES BLADE LIFTER TRANSPORT WORK?

Generally, in order to make the wind blade avoid obstacles more effectively, it is also necessary to make the blade rotate horizontally 360 °, so a slewing bearing is set between the blade lifter and the slewing platform. However, when the blade lifter lifts the blade, the center of gravity of the blade rises upward and moves to one side of the blade lifter. If the blade lifter wind turbine of the distance from the vertical line passing through the center of gravity of the wind blade to a certain point and the weight of the wind blade is the blade gravity distance, the gravity distance of the wind blade relative to the slewing bearing changes during the lifting process of the wind blade.

In other words, the balance condition of the blade lifter is different under the horizontal and lifting state of the wind blade. This brings a problem, that is, if it is designed that the upper part above the slewing bearing is balanced when the wind blade is lifted by a certain angle, such as 30 ° (the center of gravity of the upper part is on the axis of the slewing bearing), the blade can rotate 360 ° when the blade is lifted by 30 ° or near, but if the blade is placed horizontally, one side of the blade is too heavy. When 360 ° rotation, the blade lifter can easily turn over to one side of the wind blade. If the upper part is designed to be balanced when the wind blade is placed horizontally, it can rotate 360 ° when the wind blade is placed horizontally. However, if the wind blade is lifted at a certain angle, such as 30 °, one side of the counterweight is too heavy. When turning 360 °, the blade lift is easy to overturn to one side of the counterweight.

However, it is inevitable that the center of gravity will rise when lifting the wind blade. Therefore, how to make the center of gravity of the upper part only rise while the gravity distance relative to the slewing bearing remains basically unchanged or changes as little as possible is the problem that the blade lifter needs to solve.

The simplest blade lifter is to hinge a swing frame on the rotary platform, set a pitch slewing bearing between the swing frame and the transition plate, fix the wind blade on the transition plate, and push the swing frame to swing around the hinge fulcrum through the lifting oil cylinder, which can lift the wind blade upward at a certain angle.