Wind Blade Adaptor

WIND BLADE ADAPTOR

Suitable for mountain hairpin bends and narrow stretch place.

With the popularization and large-scale promotion of wind power generation, SHIYUN, as a leading brand in the field of wind power transportation vehicles, has always kept pace with industry development and continuously upgraded its wind blade adaptor. Currently, our windmill rotor blade adaptor has been fully upgraded to the tenth generation, evolving from the initial 3lines 6 axis lowbed trailer to the current mainstream multi axis hydraulic modular trailer.It is perfectly adaptable to rugged mountain road conditions, efficiently solving the transportation challenges of wind power equipment in mountainous areas, helping customers seize market opportunities, and steadily empowering the construction of the domestic wind power industry.

SHIYUN has been deeply involved in the wind power transportation field for two decades, providing comprehensive support for wind power transportation projects. Through continuous product upgrades and technological innovation, our product performance has achieved a qualitative leap, and our core quality and overall strength remain firmly at TOP 1 in the domestic industry for more than 20 years .

In the future,SHANDONG SHIYUN will continue to focus on innovative research and development, iterate and upgrade special wind power transportation equipment, benchmark international advanced standards, strive to manufacture high-quality wind power transport vehicles, and boost the high-quality and international development of the industry.

How are the wind turbine blades delivered to the mountain top?

Long distance transportation of the wind rotor blade generally adopts extendable trailers ,and for transporting wind turbine blade to the mountain top ,we use wind blade adaptor .Wind turbine blades are transported on highways with escort vehicles traveling ahead and behind for full protection. Given their extreme length, why can’t these blades be manufactured and transported in sections? And how do such ultra-long loads make turns and eventually reach mountaintop wind farms?

As the demand for electricity keeps rising, wind turbine blades have become increasingly longer, evolving from 60 to 70 meters in the early days to nearly 100 meters today. Longer blades mean a larger swept area and higher power generation, yet they also bring enormous difficulties to the transportation of these giant components, especially in complex mountainous terrain.

During transportation, over 90 meters of the wind turbine blade hangs outside. Slight movement or steering can make the blade tail swing 7 to 8 meters. A minor collision will ruin this costly blade worth millions.

Blades cannot be transported in sections. Wind turbines demand high overall blade strength. Segmented structures add extra weight, reduce stability, and may cause blade fracture or disintegration during operation.

To ensure the safe and smooth delivery of the wind turbine blade transport vehicle to the mountain top, the following three necessary conditions must be met:

1st :First, survey the route in advance and remove roadside obstacles.

2nd:Special lifting transport vehicle –wind turbine blade adaptor are adopted. The turntable firmly fixes the blade, and the movable frame enables 360° rotation and 60° pitching adjustment to change the height of the blade root and tip for height-limited roads. The tires can also steer and lift to adjust the driving direction flexibly.

3rd:A team of seven to eight staff work together, including drivers, steering operators, slewing turntable operators, commanders and escorts. The suspended dozens-of-ton blade creates strong backward pull, making climbing difficult and causing unstable center of gravity. A loader is required for auxiliary traction throughout the journey.

It is evident that transporting giant wind turbine blades to mountain wind farms is an extremely tough and complex task.

And choosing a professional manufacturer of wind turbine blade supporting equipment is extremely important. Designed for the mountain transportation of wind turbine blades, this supporting device enables easy blade hoisting. It can tilt at a maximum angle of 60 degrees and pivot and rotate around its own axis. Fixed with a quick-detachable base plate, the equipment ensures stable hoisting of blades and flexibly copes with various obstacles such as trees, buildings, curves and mountainous terrain.

1.Classification

Based on the layout of hydraulic cylinders and the pushing direction of the tooling, SHIYUN wind power transport adaptor is mainly divided into two types: diagonal pulling type and horizontal pushing type.

The diagonal-pull type wind blade adaptor features a lower overall vehicle height and offers superior passing performance on roads and bridges. It is generally matched with hydraulic modular trailers or low-bed semi-trailers.
The horizontal pushing type wind blade adaptor has a relatively higher overall height. However, its upper tooling can be purchased separately and directly installed on the customer’s existing modular vehicle.

diagonal pulling type wind blade adaptor

horizontal pushing type wind blade adaptor

2.Parameters

Main Component
1	Bottom Slewing turntable base	For mountain the adaptor on the trailer
2	Bottom slewing turntable	0-360° endless
3	Front slewing turntable	0-360° endless
4	Flange connection plate	2 diameters for the windmill
5	Fixture	Lifting angle 0-60°
6	Lifting cylinder	Cylinder diameter over than 320mm
7	Slewing mechanism	With Motor inside to drive the flange rotating
8	Slewing chassis assembly	High strength steel
9	Power station	with
10	Operation type	Manual and Wireless remote control

2.1 Bottom slewing turntable base

(SHIYUN can weld it onto the vehicle chassis, or supply only the upper structure for customers to weld mounted in their own trailers)The bottom of the slewing bracket is welded with an integral high-strength steel plate. The thicker steel plate is adopted to greatly improve structural rigidity and ensure excellent load capacity and operational stability.

2.2Bottom slewing turntable (360 degree Rotation angle ,3150 outer rotor)

It can adjust its angle flexibly according to the wind direction to reduce wind resistance and maintain stability during transportation.It can maximize vehicle stability, which is critical to transportation safety.Backed by professional design and 20 years of industry experience, SHIYUN ensures the stability and reliability of the 360-degree rotating turntable for wind blade transportation, delivering superior transportation safety performance.

2.3 Front slewing turntable

The front slewing turntable of SHIYUN wind blade adaptor features a double-rail structure. The inner rail is fixed to the fixture, while the outer rail can mount the flange for connecting the blade root. Driven by a hydraulic motor, the inner rail connected to the fixture enables 360-degree rotation, ensuring safe transportation of the blades.

2.4 Flange connection plate(Rotor blade diameter Interchangeable ,double diameters optional ,360 degree variable )

The flange turntable serves as the core connection component for wind turbine blades. Its bolt holes can perfectly match the blade root flange of various wind blades. The flange plate is detachable and replaceable. The rotation and lifting of the flange plate drives the corresponding movement of the blade, making it one of the key load-bearing parts of the wind power transport fixture.

2.5 Fixture(Lifting angle 0-60 degree，3150 outer rotor)

As the core supporting structure for blades on wind power transport equipment, it features a hydraulic lifting function from 0 to 60 degrees. Connected to hydraulic cylinders, it enables flexible adjustment of the blade angle to balance the vehicle’s center of gravity and ensure stable transportation.

2.6 Lifting cylinder(350 model,2pcs)

The hydraulic cylinder is a key component of the wind blade transport fixture. Cooperating with the flange turntable, it realizes the hydraulic lifting of the blade from 0° to 60°.

When driving on mountain roads and complex routes, it adjusts the blade elevation angle to avoid obstacles effectively. It also balances the vehicle’s center of gravity, greatly improving driving stability and trafficability, which is essential for safe wind blade transportation.

2.7 Slewing mechanism drive system (with Motor inside to drive the flange rotating)

The flange turntable (360° slewing bearing) of the wind power transport fixture rotates via a hydraulic drive system + heavy-duty slewing bearing + gear transmission.

Structure: The chassis mounts the inner ring of the slewing bearing, while the turntable (with flange) attaches to the outer ring. High-strength rolling elements (balls/rollers) between the rings support heavy loads and overturning moments.
Drive: It adopts 4 hydraulic motors, with 2 dedicated for blade pitch adjustment, which enhances power output while ensuring balanced and synchronized operation.After speed reduction, drive pinions that mesh with a large gear ring on the turntable’s periphery, rotating the outer ring and flange synchronously.
Control: The hydraulic system delivers stable torque for continuous 360° clockwise/counterclockwise rotation. Hydraulic locks and brakes secure the angle precisely, preventing blade sway.

2.8 Slewing chassis assembly

This is the main structure and basic frame of the blade fixture. Mounted on the lower turntable, the frame can rotate synchronously with it. Hydraulic cylinders are installed at the front to support and lift the blade. The entire structure is made of high-strength steel, featuring thick plates, strong load capacity, and excellent durability.

2.9 Power station

This wind power blade adaptor is equipped with an integrated power pack unit, which consists of a diesel engine, hydraulic pump and oil tank. It provides power for the whole vehicle hydraulic system and drives the hydraulic motors to operate.

2.10 Operation box (Manual and Wireless remote control)

The control system is equipped with two independent valve operation boxes. One is mounted on the main equipment, and the other is dedicated for the hydraulic modular vehicle. It supports both manual on-site operation and wireless remote control, delivering simple, convenient and highly efficient operation.

2.11 Others:

According to the length and weight of wind turbine blades, we adopt different size adaptor, matched with corresponding low-bed semi-trailers or hydraulic modular trailers.

Counterweights can be equipped during operation. To accommodate customers’ transportation of wind turbine blades of varying sizes, two detachable counterweight boxes are installed at the front for flexible adjustment as required.Both low-bed semi-trailers and hydraulic modular trailers are equipped with hydraulically lift goosenecks and hydraulically steering fifth wheels, realizing heavy-duty transportation of wind turbine blades.

3.Transportation conditions requirements

3.1 After the trailer is coupled with the truck, the front end of the trailer shall not be higher than the rear end, which is conducive to traction adhesion when climbing uphill.

3.2 The equipment can operate normally at an ambient temperature of -30℃ to 40℃.

3.3 The flange plate of the carrier is applicable for transporting 7 specifications of wind turbine blades.

3.4 The maximum transport length of the blade is 67 meters.

3.5 Operating Environmental Requirements

Temperature range: -20℃ to 40℃; Wind speed: ≤8 km/h
Uphill slope angle: ≤30°. If the slope angle is larger, please upgrade the engine power of the tractor.

3.6 Rotation speed: 0.05° per minute.

3.7 Recommended traveling speed on complex mountain roads: 20 km/h.

3.8 Hydraulic System

The maximum rated working pressure of the hydraulic system is 20 MPa, and the maximum rated working pressure of the entire system is 31.5 MPa, which is regulated by the overflow valve.
The capacity of the hydraulic oil tank is 200L. Use Caltex #46 anti-wear hydraulic oil with a replacement cycle of 4 months.
The hydraulic cylinder is equipped with manual two-stage protection valves with operating handles. The left and right control switches must be operated synchronously; otherwise, equipment damage will be caused.