How to achieve lightweight trailer? How to maintain trailer axles?

Under normal circumstances, the trailer wants to achieve lightweight, there are the following common ways:

1, the use of lighter weight materials, such as aluminum alloy instead of steel, common like aluminum alloy body, aluminum alloy transmission, aluminum alloy drive shaft, aluminum alloy fuel tank, aluminum alloy rim, etc.;

2, the vehicle appearance and interior parts use new materials, such as long fiber reinforced materials, low density PP materials, low VOC green materials, spray free materials, halogen-free flame retardant materials, etc.;

3, reduce the thickness of the plate, the use of higher standards, greater strength, better toughness of steel;

4, lightweight trailer girder, such as the use of special-shaped punching, reduce the height of the vertical plate and the width of the upper and lower wings;

5, choose a lighter weight trailer axle, the use of light trailer axle or disc brake bridge;

6, with air suspension instead of steel plate suspension, its own weight is lighter, but also in the appropriate time to achieve the rear axle lifting, full energy saving and efficiency;

7, reduce the weight of accessories, such as bumper, protective net, spare tire bridge, toolbox, tarpaulin frame, etc.;

8, starting from the wheel end, such as using a large single instead of twin, the weight loss effect is also very considerable;

9, integrated parts integration, such as integrated car chip, integrated fuel tank urea tank, integrated electric steering gear, ABS integrated valve, etc., by increasing the function of parts to reduce the number of parts, multiple parts to achieve integration integration, make the vehicle structure more compact, to reduce the weight of the body.

In general, the trailer every 50,000 kilometers, you need to do a maintenance on the hub bearings. Then how should be maintained?

1. Clean up the old grease. Remove the hub, clean the bearing, journal and hub cavity, scrape off the old grease, and then wipe it clean with cleaning agent or diesel, and then clean with clean water, dry the hub cavity with a clean rag.

2. Check bearing and seat ring. After the cleaning is completed, check the hub bearing and bearing ring, and replace the bearing in time if cracks, fatigue peeling, roller loose and other phenomena are found.

3, check the bearing clearance. Check the matching between the bearing inner diameter and the journal. The matching clearance should be no more than 0.1mm. The measuring position should be the two positions above and below the vertical ground of the shaft diameter, which is the maximum wear position.

4. Apply grease. Fill the gap between the bearing inner seat ring and the cage roller with new grease, and apply a thin layer of grease to the bearing inner and outer surfaces. A thin layer of grease in the hub cavity and the shaft head cover can play a rust-proof role, but it can not be too much, otherwise it will easily affect heat dissipation or braking. Finally install the wheel hub.