News
Ladder truck design details
Aug. 30, 2024
A ladder truck is a fire truck that can transport personnel, rescue materials, rescue trapped people, and spray fire extinguishing agents to high altitudes. So what are the design details of the ladder truck? Let's take a look.
It puts forward very high requirements for the wear and strength requirements of the parts. Therefore, for the ladder truck, a fuel-efficient engine and a sturdy ladder arm structure are crucial. It must be fast, high-speed, highly reliable and fuel-efficient. This kind of very contradictory problem is concentrated together, which puts very high requirements on the whole vehicle. Therefore, there are only two or three manufacturers of ladder trucks in the world. The ladder truck does not have this requirement. The lower the index, the lower the technical standard, so there are many manufacturers that can. Lao Tzu said: "The upper virtue is not virtuous, so it has virtue; the lower virtue does not lose virtue, so it has no virtue. Laws and decrees are promulgated, and there are many thieves."
The structural design of the ladder truck and the ladder transporter is basically the same, but the size and the pressure resistance level of the hydraulic system are matched accordingly. To make an inappropriate analogy, the ladder truck is like a fighter, and the ladder transporter is a transport plane. Fighter jets are far inferior to transport aircraft in terms of weight and body strength, but they are superior to transport aircraft in speed and flexibility. The design of ladder trucks is based on this concept. This is also the reason why moving operations do not require high-intensity use, and do not require too high requirements in other aspects such as hydraulics. However, this is not the case with ladder trucks. With ladder trucks, you have to repeatedly perform all kinds of dirty, hard and tiring work like a camel, so its use is a high-frequency and long-term use, so you have to have particularly high requirements on the ladder arm strength, materials and engine speed of the ladder truck.
With the development of the economy, there are more and more high-rise buildings in cities, and the application of ladder movers is becoming more and more extensive. When operating, you should have excellent physical and psychological qualities, as well as equipment and skills to operate equipment proficiently. You may not know much about the parking operation of the ladder mover. Let me explain it to you in detail.
After the ladder mover arrives at the destination, the driver should first choose the parking position, and then apply the parking brake. The parking position of the vehicle should try not to affect normal traffic.
To ensure the safety of personnel and vehicles, there are no obstacles above when parking, and the place where the ladder frame is not hindered from lifting or rotating is parked.
The parking ground should be solid and flat, and the wheels and legs should avoid underground septic tanks, cable trenches (wells) and other unsolid areas. The front of the car should face the direction that is convenient for rapid evacuation of the fire. When placed on a slope, the front of the car must face the downhill direction, and the wheel block should be placed to prevent the car from slipping. The working target should be located at the rear or side of the vehicle.
Parking brake: put the transmission operating lever in the neutral position, tighten the handbrake, keep the engine idling, and check that the air source pressure gauge in the cab displays a value above 0.6MPa to ensure that the fire truck brakes and pneumatic valves can work normally.