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Draft Gear

Draft Gear consultation

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Draft Gear

It is used to alleviate the longitudinal impact and vibration caused by the change of the traction force of the train during the running of the train or the collision of the vehicles during the starting, braking and shunting operations. The draft gear has the function of dissipating shock and vibration between the vehicles, thereby mitigating the damage to the structure of the vehicle carbody and the loading of the cargo. The working principle of the draft gear is to relax the impact force by means of the compression elastic element, and absorb the impact energy by friction and damping during the deformation of the elastic element.

Types
According to the structural characteristics and working principle of the draft gear, could be divided into: friction draft gear, rubber draft gear and hydraulic draft gear.
Standard：AAR M-901 TB/T 1961
Performance Parameter of Cement-Spring Draft Gear Value
Rating Capacity(KJ)                                                       80
Rating Impact Speed（km/h）　　 10
Rating Resistance Force（kN）　 2450
Rating Travel Distance（mm）　　 83
Absorption Rate（%）　 ≥90
Free Length（mm）　　 577
Length when assembled on a vehicle（mm） 568
Operating Environment                                                 -50℃-50℃
   
Performance Parameter of Cement-Spring Draft Gear Value
Rating Capacity(KJ)                                                       80
Rating Impact Speed（km/h）　　 10
Rating Resistance Force（kN）　 2450
Rating Travel Distance（mm）　　 83
Absorption Rate（%）　 ≥60
Free Length（mm）　　 318
Length when assembled on a vehicle（mm） 229
Operating Environment                                                 -35℃-50℃











 

Performance Parameter of Cement-Spring Draft Gear  
Rating Capacity(KJ)                                                       20
Rating Impact Speed（km/h）　　 7
Rating Resistance Force（kN）　 2000
Rating Travel Distance（mm）　　 68
Absorption Rate（%）　 ≥80
Free Length（mm）　　 568
Length when assembled on a vehicle（mm） 550
Operating Environment                                                 -30℃-50℃











 

Performance Parameter of Cement-Spring Draft Gear  
Rating Capacity(KJ)                                                       40
Impact（t）　　 120t
Rating Resistance Force（kN）　 2000
Rating Travel Distance（mm）　　 50
Absorption Rate（%）　 ≥60
Free Length（mm）　　 345
Length when assembled on a vehicle（mm） 333
Operating Environment                                                 -30℃-50℃
Type Capacity Travel Reaction Force Buffer Type Rating Capacity/Office Capacity
UIC ≥40KJ 110±10mm ≤800KN Steel Friction&rubber ≥80%
 

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