The multi axle trailer is the kind of equipment you will need to transport unusually heavy cargo. It gives you the ability to handle complex situations involving not only heavy cargo but also heavy weight loads.Multi axle trailer shipping is the obvious way to go when you need to send a very large and very heavy shipment.
Multi-axles trailers are of two general types: The Low bed trailer and the modular trailer. In this post, we will mainly introduce multi-axles low bed trailer.
Trailer axles that are used for carrying the ground wheels are normally carried on springs or bogies that engage appropriate bearing members on the vehicle chassis and including a rocker to make it possible for the weight supported by the axles to be accurately distributed in reference to the frame of the trailer.
TITAN Multi-Axles Modular Trailer for Heavy Haul Transport
Mechanical steering axles
When gooseneck steering, the system will control the rods and support arm to steer the tires. This is the type to go for on economic grounds and again to enjoy a long service life.
It comes with low maintenance costs and most importantly, it is highly available.
Hydraulic steering axles
This type offers a larger steering angle of up to 65°. Most importantly, it has a higher capacity compared to other options out there.
Steering Operations
The multi-axles trailer has many axles even up to 10 axles. So, the Multi-Axles Modular Trailer’s axles need to be steered by either self-steering or automatic steering. Steering without wheels causes serious wearing.
In order to minimize the tear and wear on the tyres and the trailer chassis stress, it is advisable to let the Modular Trailer wheels to accurately follow the towing vehicle wheels regardless of whether it is on a tractor or a lorry.
For this to be achieved, it is normally important that successive wheel pairs take up slightly varying angles and positions under the trailer chassis.
Conventional steering systems for trailers make use of the bogie system for steering through means where both the wheels of a pair get turned concurrently through the changing axle angle where the axle links up the wheels together.
The trailer can get signal when gooseneck or drawbar steering, the axles will be controlled by PPU automatically, you can also use the remote control to steer all axles.
Heavy Haul Transport trailer with steering axles
Generally, the Multi-Axles Modular Trailer are usually composed of tractors and semi trailers. Obviously, tractors, trailers and their coordination conditions constitute the main factors that affect the reliability of transportation vehicles.
Reasonable vehicle equipment mainly includes the selection of tractors and trailers, and the selection of the number of trailer splicing axles: different types of trailers have different load-bearing performances, and trailers with different axle numbers have different rated loads, so the type of trailer The determination of the number of axles depends on the weight and shape of the cargo; the selection of the tractor is determined according to the selected trailer and its load capacity. In engineering practice, from the perspective of transportation safety, it is necessary to scientifically analyze and check the reliability of the vehicle to check whether the automobile train is always in a reliable state during the transportation of large parts to ensure transportation safety.
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Considerations of Multi-Axles Modular Trailer
1. The tractor has sufficient power
The maximum driving force of the tractor wheels determined by the engine torque and transmission ratio should be greater than the driving resistance of the vehicle group;
2. The drive wheels of the tractor have sufficient adhesion.
The main determinant of adhesion is the axle load quality of the tractor, which is applied in the form of counterweight in engineering. In order to meet the basic conditions for the driving of a car, the tractor should have enough weight so that the driving wheels of the tractor do not slip on the road when driving.
The selection of the tractor is considered from these two aspects. First, the maximum driving force of the wheel determined by the engine of the tractor is calculated, and then the driving resistance of the vehicle group is calculated, and compared with the maximum driving force of the wheel, if the driving resistance is greater than the maximum driving force of the wheel, The tractor's capacity is insufficient, you must replace the tractor or increase the number of tractors; if the driving resistance is less than the maximum driving force of the wheel, then check whether the driving wheel has sufficient adhesion according to the given road conditions. If the adhesion is not enough, the calculation must be Increase the counterweight, and finally check whether the tonnage of the counterweight is within the carrying capacity of the tractor. If the tonnage of the counterweight exceeds the carrying capacity of the tractor, you must still replace the tractor or increase the number of tractors. If the tonnage of the counterweight is in towing Within the carrying capacity of the car, a selection report is made.
3. Trailer model and trailer structure
The structure of the Multi-Axles Modular Trailer is very complicated, and its longitudinal direction is very long. The main longitudinal beam is designed on the trailer to bear the load of the cargo and the supporting force of the tire, forming a beam member in material mechanics. If the cargo is too heavy-weight, the huge bending stress may easily cause the main beam of the trailer to deform too much or exceed the stress limit, and the main beam of the trailer may yield or even break; and the bending moment of each splicing part of the trailer body exceeds the allowable At the moment of bending, the joint of the trailer longitudinal beam will become a hidden danger.
Therefore, in the pre-selection of the Multi-Axles Modular Trailer model and the pre-loading of the cargo, in order to ensure the safety of the trailer and the cargo, it is very important to check the force deformation and bending moment of the trailer. Only the trailers that have passed all the checks can ensure safe use.
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