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Oil Semi-trailer

Jun 30, 2019

The oil transportation semi-trailer is mainly used for large-scale oil transportation, and the tonnage is generally around 40~60 cubic meters. Oil semi-trailers usually have two-bridge semi-trailers and three-bridge semi-trailers. The oil tank semi-trailer square tank material is made of Q235A steel plate. The tank body has built-in multi-channel reinforced anti-wave baffle plate. 

The lower end of the baffle has through holes to reduce the impact of the oil in the tank and improve the strength of the tank. . The combined tank mouth is located at the top of the tank body. There is a self-locking small cover on the large cover, and a breathing valve is installed on the upper side of the large cover to ensure uniform atmospheric pressure inside and outside the tank; with an electrostatic grounding wire. 

Install the pump oil system, take the force from the gearbox side through the power take-off, self-priming and self-discharging; with two pumping oil pipes, equipped with quick-connect fittings, suction stroke of 6 meters. Two fire extinguishers and special tools. The oil transport semi-trailer is divided into two parts, a tank body and a skeleton or bracket supporting the tank body. Faults and maintenance methods: 1. Brake is not working, and the brake is slow. Cause: The brake shoe friction plate and the brake drum are too large. The gap between the brake shoes and the friction plate is excessively worn, and the brake shoe is replaced. Replace the air chamber air brake system air leakage to reduce the pressure, check the air leakage part, repair or replace the parts emergency relay valve is not working properly, replace 2. Can not release the brake, the brake is released slowly. Cause: The system pressure is too low, will The pressure of the air brake system is increased to the specified value. The brake return spring is damaged, the replacement spring pipe is blocked, the emergency relay valve or the quick release valve is inspected and cleared. The check and replacement of the brake chamber push rod stroke is incorrect, and the adjustment is made again. Tire swing reason: the wheel nut is loose, tighten the axle bearing sintered and damaged, replace the bearing axle bending, correct and replace the axle bearing clearance too large, correctly tighten the bearing lock nut, replace the bearing grease on time, replace the axle bearing; the tire is excessively eccentric The vertical axis of the axle axis and the center line of the frame exceeds the standard seriously. Adjust the distance between the two ends of the axle and the traction pin as much as possible. 4. Shake Moving too much resistance reasons: poor lubrication, grease supplemental bearing damage, replacement of bearings or eccentric gears badly worn, replacement parts exploded check screw thread damage, replacement of the screw.