CN2123468U

CN2123468U - Safety bearing device of railway heavy load high speed train

Info

Publication number: CN2123468U
Application number: CN 92205518
Authority: CN
Inventors: 马崇年
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-04-01
Filing date: 1992-04-01
Publication date: 1992-12-02

Abstract

Disclosed is a safety bearing device of railway heavy load high speed train. The safety bearing composed of an outer ring 2, a middle ring 3 and an inner ring 5 and an axial direction load-bearing positioning device are arranged on both ends of the axle of the train. A transverse impact component force is generated through the interaction between a wheel tread and rails when the train runs, and the component force is transmitted to a thrust bearing 9 and then to an axle head stop arm 12 through wheels 14 and an axle 15 to make a train body 16 swing transversely. The utility model overcomes the abuse that the bearing stop edge wears out severely when the transverse component force is transmitted to a bearing 13 through the axle 15 and then to an axle box through the bearing, and finally the transverse force is transmitted to the train body. The safety bearing device of railway heavy load high speed train is rational in design and simple in structure, and the safety bearing device is safe, reliable and is convenient to assemble.

Description

Safety bearing device of railway heavy load high speed train

The utility model relates to the safety bearing device that a kind of railway high speed train is used.

The countries in the world railway transportation is all developing towards high speed, heavy duty and long and big train direction, the China railways passenger vehicle uses the single-row centripetal cylindrical roller bearing more, this bearing is in operation because of bearing fault causes hot box, and breaking axis happens occasionally, the serious threat traffic safety.In order to address this problem, the inventor provides the Heavy-Haul Railway high speed train safety bearing of a kind of patent No. for " 88213040.4 ", but does not wherein have axial load registration device, makes that bearing edge guard is easy to wear, the life-span short.

The purpose of this utility model is by the improvement to the original design scheme, and provides a kind of device with axial load location to be used in combination with Heavy-Haul Railway high speed train safety bearing, to guarantee traffic safety and prolongation bearing service life.

The utility model is by safety bearing 13 that comprises outer ring 2, centre circle 3, inner ring 5,

roller

6 and 7 retainers and axial bearing: comprise pressing plate 8, thrust baring 9, thrust baring pressing plate 10, load ball 11, and spindle nose blocking arm 12 form.Improve the back safety bearing and be characterised in that the outer ring 2 of safety bearing 13 and inner ring 5 are single side type, increase the back-up ring 1 of an outer ring 2 and the back-up ring 4 of inner ring 5 respectively in its no rib one side, back-up ring 1 is by the fastening location of car body journal box lid, back-up ring 4 pressing plate positioning and fixing, this structure is convenient to assembling, can control

roller

6,7 square rollings again.The cross sectional shape of centre circle 3 is " worker " type.This structure can make and be in the centre circle 3 that free state rotates in the running, and when suffering that axial force impacts, load is even, makes

roller

6,7 forward rotation.Safety bearing 13 is installed on wheel 14 outer shaft, the spill pressing plate 8 in a tape spool hole is installed in the outside of safety bearing 13, in the outside of pressing plate 8 thrust baring 9 is installed again, outer surface at thrust baring 9 has a ring-type chase concentric with bearing, the recessed pressing plate 10 of assembling lateral surface center dribbling shape in this chase, place a load ball 11 spherical in recessed, the outside of load ball 11 is in the inner circular elongated slot of spindle nose blocking arm 12, and the upper end of spindle nose blocking arm 12 is connected with car body 16.(can be fixed on the car bogie side frame).

Below in conjunction with accompanying drawing architectural feature of the present utility model is further specified.

Fig. 1 is the structural representation of safety bearing 13.This structure is a known structure.Just outer ring 2 changes split type single block border type into by original two ribs " recessed " type, increases a back-up ring 1 in its no rib side.Inner ring 5 is the single block border type, also increases a back-up ring 4 in its no rib side.Centre circle 3 changes " worker " font into by original " J " font.

Fig. 2 is that Heavy-Haul Railway high speed train safety bearing device is installed in the structural representation on the car body 16.

Fig. 3 is Fig. 2 A portion enlarged drawing.

Be the datum except safety bearing 13 and thrust baring 9 wherein, other each parts all adopt metallic material, make with reference to figure 2 and feature thereof.This device is installed in the two ends of axletree.When train is in operation when swinging, its axial force results from wheel tread and the interactional shock component of rail, this component conducts through wheel 14 axletrees 15 gives thrust baring 9, make car body 16 teeter thereupon through spindle nose blocking arm 12 again, having overcome original conicity force conducts to bearing through axletree and transverse force is conveyed to car body 16 through axle box again by bearing, the drawback of severe wear bearing edge guard, thus the service life of safety bearing 13 prolonged, guarantee the vehicle safety operation.

The utility model is reasonable in design, and is safe and reliable, simple in structure, easy to assembly, is particularly suitable for heavily loaded high speed train and uses.

Claims

One comprises the Heavy-Haul Railway high speed train safety bearing device of safety bearing and axial load registration device, safety bearing is by the outer ring, centre circle, inner ring, roller and retainer are formed, axially the load registration device is by pressing plate, thrust baring, the thrust baring pressing plate, load ball and spindle nose blocking arm are formed, the outer ring and the inner ring that it is characterized in that safety bearing are the single block border types, increase a back-up ring in its no rib one side, the centre circle cross sectional shape is " worker " font, safety bearing is installed on the lateral wheel axle, " recessed " shape pressing plate in a tape spool hole is installed in the outside of safety bearing, in the outside of pressing plate a thrust baring is installed again, outer surface at thrust baring has a ring-type chase concentric with bearing, the recessed pressing plate of assembling outer surface center dribbling shape in this chase, the outer rim of this pressing plate is in the ring-type chase of thrust baring, in this pressing plate ball impression, place a load ball, the outside of load ball is in the circular elongated slot of spindle nose blocking arm inboard, and the upper end of spindle nose blocking arm is connected with car body.