BOBRN WAGON DOOR OPERATING MECHANISM | HOPPER WAGONS скачать в хорошем качестве

BOBRN WAGON DOOR OPERATING MECHANISM | HOPPER WAGONS

WATCH BOBRN WAGON DOOR OPERATING MECHANISM | HOPPER WAGONS WhatsApp Channel link https://whatsapp.com/channel/0029VaBl... My Facebook link   / avutapallisrinivas   👇BOXN UNDERGEAR ANIMATION    • BOXN Wagon Parts Explained and BOXNHL BMBS...   👇EK DV ANIMATION    • KE type Distributor valve Functions in Ind...   👇BMBS & APM ANIMATION    • Automatic Pressure Modification Device and...   👇WAGON AIRBRAKE SYSTEM ANIMATION    • Wagon Airbrake System in Indian Railways w...   Indian Railways is a pioneer in freight forwarding. However, at the freight unloading companies, there is a huge risk of damage to their equipment, for example, tripling system, manual unloading, payloader unloading & etc. In this context, a committee chaired by Sri Kumaramangalam initiated mitigation measures. Derived from it ... BOBR. BOGIE OPEN BOTTOM RAPID DISCHARGE WAGON. These Wagons are also known as Rapid Discharge Coal Hopper Wagons. The type used by Railways is BOBRN type having 8 underside doors and the one used by Thermal Power Stations has 12 underside doors. These Wagons can carry 60 tonnes graded coal and can ply in merry-go-round system. 1) The piston rod of the DOM must be fully retracted when the doors are closed, then the secondary lock will sit completely. 2) The main purpose of the secondary lock is to prevent the doors from opening when the primary lock fails, and also to prevent the secondary lock from weighing up to 50 tons even when the formation is moving. 3) The secondary lock served as a backup mechanism, similar to the CBC Anti creep mechanism. This specification covers the technical requirements for rehabilitation of BOBRN wagons. The works involved fabrication of new side walls, end walls, hopper arrangement, hopper door assembly, damaged underframe, modification of air brake equipment and piping & door operating mechanism members. To ensure good quality of welding, it is essential to install the wagon on manipulator for undertaking this work so that down hand welding can be performed to the maximum extent. The top and bottom Centre pivots will also require replacement and top pivot fixing with lock bolts. The bogie, draft gear and couplers including uncoupling gear and brake gear of the existing wagons will be retained. In case any of these components are missing or damaged, they will have to be replaced. Only BOBRN Wagons Preferably in age group of 15-21 years shall be taken up for rehabilitation unless condition of a particular wagon so dictates. Rehabilitation of wagon to be taken up only if center sill of wagon found to be good condition. Parameters/ Structural Members of BOBRN that need to be checked/ inspected, condition recorded & the required repairs identified Parts Of Wagon Incoming Conditions are End Body End Body Buldging End slope plate Hopper end stiffening plate End stiffening plate Ladder Side Body Side Body Buldging - Both Side Body Side Stanchion Body Side top Coping Side slope plate Side sill End ridge cover Stiffener CBC CBC with Yoke Pin Knuckle with Pin & APD Back Stop Wear Plate (Striker casting) Yoke Pin Support Plate Yoke Support Plate Uncoupling Rod Arrangement Under Frame Central Brake Rigging including Centre Pivot Top Center Sill Sole Bar - Pillar to Pillar Sole Bar/Head Stock Patch L/E Change - over arrangement Main Transom/ Bolsters Hand Brake Wheel Hand Brake Gear with Gear Box Head Stock Head Stock & Sole Bar – Joint HOPPER DOOR Door pin Door bush for hinge Door flap Door bush for lug & hinge Door flap stiffener HOPPER ARRANGEMENT Side sill hopper frame & plate Centre sill hopper frame & plate Longitudinal ridge Connecting plate Holding plate Extension plate DON'Ts & DO's 1) Now let’s look at the do’s and don’ts. 2) Door lugs must be replaced if they are corroded. And good quality welding should be done. 3) Door pins should fit outside, and washer & split pins should fit. 4) Good quality reviting should be done for bearings near & far end. 5) Do not weld to the operating lever and square shaft as shown in this picture. If the square shaft does not come out, replace the new square shaft, then weld only the circular APD. 6) BOBRN doors should not be patched as BOXN WAGON is patched as shown in this picture, this will prevent the DOM piston rod from fully retracting. so, Door patches are not allowed in BOBR wagons. 7) The eye bolt lock washer should hold the eye bolt pocket as shown in the picture. 8) The turn buckle locking bolt must fit in the slot. 9) The adjustable lever should be tagged with the tag wire as shown in this picture. 10) Links should not be lined with gaps, and should not be heated and bent. 11) Door hinges should not have any welding joints, such hinges should be replaced with new ones. 12) Safety items should have good quality welding, Do not weld safety items badly.