The film introduces the design of the axle box assembly, the requirements for the operation of the units and repair. It shows the restoration of axle box assembly parts and the requirements for the quality of the products.
A freight train is traveling by rail.
Axle boxes with roller bearings.
A cartoon explaining the structure and operating principle of the axle box unit.
The structure of the axle box unit.
A cartoon explaining the supply of lubricant to the bearing.
The structure of the axle box bearing.
A cartoon explaining the transfer of the load by the bearing to the axle journal.
Axle box liners facilitate the removal of the bearing, allowing the axle box housing and the side frame of the bogie to rotate relative to the bearing and the axle journal.
A sealing rubber washer, reinforced with a steel core, protects the axle box from contamination and axle oil leakage.
A cartoon explaining the importance of lubrication between the axle and the bearing.
Inspection and detection of axle box unit malfunctions by inspectors at wagon maintenance points.
The inspection begins with an inspection of the cover.
Types of malfunctions.
The inspector writes a message on the wagon for the repairmen.
Identification of overheated axle boxes.
Signs of overheating.
If overheating is detected, the bearing condition and the axle journal surface are checked.
If a scuff on the axle journal or a bearing malfunction is detected, the car is uncoupled to replace the wheelset.
If there is no scuff, the bearing must be inspected with a recess from the axle box.
Self-propelled repair unit.
Main bearing malfunctions.
Bearing replacement.
Main polster malfunctions.
Polster replacement.
Buxa, Bearing, Axle neck, Axle box repair
Cartoon explaining normal oil supply to the axle.
Method of detecting faulty bearings by friction traces and increased wear of bogie and wheel pair parts.
Cartoon explaining the effect of axle oils on the interaction of the bearing and the rotating axle journal.
Axle oils are studied in the laboratory.
Storage of oils of different grades.
Axle oils are purified from water and mechanical impurities before use.
Cartoon explaining the purification of axle oils.
The settled oil is pumped into impregnation tanks and tanks of the park oil pipeline, from where it is transferred to the distribution network.
Checking new polster brushes and tamping rollers with a template.
Drying them in a drying cabinet.
After drying, the brushes are fixed on the frames.
Polsters and rollers are impregnated in axle oil.
Cartoon telling about the revision and filling of axle boxes with seasonal oils.
A special team of inspectors that carries out this operation.
Shows the process of checking the axle box and changing the oil.
A stencil is applied about the refill.
Regeneration of axle oils.
Used oil is pumped through the oil pipeline into the settling tank.
The oil is heated and settled for 6 hours.
After draining the impurities, the oil is pumped through a filter and a sample is taken for analysis.
Regenerated oil is allowed to be used only in summer.
During the regeneration of polsters, the brushes are separated from the frames.
They are washed in heated oil, squeezed out in a centrifuge.
They are cleaned from mechanical impurities on a vibration stand.
Faulty brushes are repaired.
Polster frames are checked and repaired.
Regenerated polsters and rollers are impregnated in oil.
During scheduled car repairs, before washing the bogie, polsters and rollers are removed from the axle boxes, the axle oil is removed.
The axle boxes are removed from the wheel pair and fed to the repair table.
The sealing washer is removed.
The axle box body is sent for washing.
The axle boxes are inspected and faulty covers are replaced.
Bearings, Axle oil, Polsters, Tamping rollers
The bearings are delivered to a special department, where they are washed and loaded into cassette units for removing babbitt.
A pneumatic mechanism feeds the bearings into the inductor for heating.
The bearing housing is heated until the babbitt in the grooves melts.
The babbitt crust separates from the housing under its own weight.
Cleaning the bearing.
Inspection of the cooled bearing.
If necessary, the reinforcement is strengthened on a press by pressing in a steel ball.
The alignment of the housing and reinforcement is checked.
The distance from the shoulders to the rear stop is measured.
The bearings are installed in special molds.
The grooves are sealed with refractory putty.
The molds with bearings are fed into the furnace and heated to a temperature of 200-250 degrees.
Natrocalcium babbitt is used to pour the antifriction layer.
When pouring, the babbitt should flow in a continuous stream.
A sample is cast from each babbitt melt for hardness testing.
Determining the hardness of babbitt using samples.
Boring of the babbitt layer.
The diameter of the babbitt layer is stamped on the front end of the bearing, a stamp with the date of filling and the repair point number is put on the side surface.
Bearings intended for storage are kept in axle oil.
Repaired bearings are transported in special containers to wagon maintenance points and to the repair and assembly departments of the bogie shop.
Axle box units are assembled in the shops.
Special templates are used to fit the bearing to the axle journal.
The bearing and liner are installed in the repaired axle box housing.
Alternation of frames from the film.
A freight train is traveling along the railway.
Bearings, Babbitt, Axle box units