CN105329251B

CN105329251B - A kind of radial steering

Info

Publication number: CN105329251B
Application number: CN201510919297.6A
Authority: CN
Inventors: 王长科; 肖守讷; 阳光武; 朱涛; 杨冰
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2015-12-10
Filing date: 2015-12-10
Publication date: 2017-09-08
Anticipated expiration: 2035-12-10
Also published as: CN105329251A

Abstract

A kind of radial steering applied to rail vehicle field.Axle box 300 is made up of main truss 100, secondary framework 200 and wheel；Secondary framework has two " Contraband " shape end-rack, and two end-rack are hinged by a free bearing 211 in the medium position of end-rack needle beam, and the shoulder bridging of two end-rack sets anti-hunting damper holder 201, and two ends of each end-rack are nested with wheel on axle box by axle box seating 204；Main truss 100 is in " H " shape structure, and its two curb girders are fallen within four axle box seatings of secondary framework, and constitutes hinge connection with two axle box seatings in diagonal relationship, and main truss center has short chain 120 210 to be coupled with revoking on pair framework.The main truss of the present invention has vertical constraint with secondary framework, but does not limit the slight oscillatory of subframe structure.When vehicle is by curve, bogie can tend to radial position, vehicle is passed through curve, and when vehicle carries out straight line, bogie can rapidly return back to straight running condition again, it is ensured that vehicle smoothness.

Description

A kind of radial steering

Technical field

It is a kind of rail vehicle radial steering the present invention relates to rail vehicle field.

Prospect technology

The contradiction solved between bogie curving performance and lateral stability is always that rail vehicle field is ground for a long time The content studied carefully, conventional bogie can not meet the requirement of the two simultaneously.The appearance of radial steering then efficiently solves this Contradiction, it both can guarantee that the requirement of bogie curving performance, can improve lateral stability again.The current field has occurred And radial steering is applied, it mainly has two types：Before and after being made using wheel to Creep Forces and the guiding mechanism effect of itself Wheel pair tends to radially simultaneously, referred to as self steering bogie；During using curve negotiating, the relative rotation between car body and bogie is led To be referred to as forced steering bogie.These bogies carry out the transmission of power with bar linkage structure mostly, and connecting rod is more, and structure is more multiple Miscellaneous and easy failure, this can cause great threat to traffic safety.

The content of the invention

It is complicated in order to overcome the connecting rod of existing radial steering many, the not deficiency of easy care, the purpose of the present invention is A kind of self steering radial truck is provided, the bogie structure is simple, apply the material and parts of novelty, using the teaching of the invention it is possible to provide be steady Fixed performance, and easily care and maintenance.

The technical solution adopted for the present invention to solve the technical problems is：

A kind of radial steering, is made up of main truss 100, secondary framework 200 and wheel to axle box 300；Secondary framework has two Two end-rack are hinged by " Contraband " shape end-rack a, free bearing 211 in the medium position of end-rack needle beam, and the shoulder bridging of two end-rack is set Anti-hunting damper holder 201 is put, two ends of each end-rack are nested with wheel on axle box by axle box seating 204；Main truss 100 is in " H " shape structure, its two curb girders are fallen within four axle box seatings of secondary framework, and with constituting hinge in two axle box seatings of diagonal relationship Connection, main truss center has short chain 120 210 to be coupled with revoking on pair framework.

So, bogie uses major and minor frame construction, and main truss is mainly used in carrying, and the major function of secondary framework is real Existing radially-directed.Two frameworks are coupled by cutting with scissors, and both is relatively rotated, and there are two rigidity between the two Friction plate and two elastic-friction pieces are to provide abrasion when major and minor framework is relatively rotated.Secondary framework be hinged by two end-rack and Into both sides are installed and accompany rubber spring between a pair of anti-hunting damper holders, and two end-rack, and rubber spring has certain precompressed Power.End-rack afterbody has axle box mounting seat, and wheel set axle box device is installed to facilitate.

The present invention operation principle and process be：When bogie linear running, whole bogie can be by high-frequency Impact shock, these dithers by secondary framework hydraulic buffer when, hydraulic buffer will not be acted, made between end-rack Keep fixing, so as to ensure stability of the bogie on straight line；, can be by longitudinal Creep Forces when bogie is run on curve Effect, and the power by continuous action in wheel to upper, this acts the hydraulic buffer made on secondary framework, makes occur phase between end-rack To rotating, so that two-wheeled passes through curve to radially position；After curve, in opposing longitudinal Creep Forces and rubber Under the double action of the reaction force of glue spring, the overall secondary framework of bogie can be made to be promptly restored to straight running condition again.

Compared with prior art, the beneficial effects of the invention are as follows：First, present invention employs major and minor frame construction, both are each Its duty is taken charge of, radial direction ability of the bogie on curve has both been can guarantee that, and do not influence the overall load-carrying properties of bogie.2nd, this hair The novel material of bright application and parts instead of the bar linkage structure of conventional radial bogie, ensure that radial steering curve is logical On the premise of crossing performance, the complexity of bogie structure is greatly reduced.

Brief description of the drawings

The present invention is further described with reference to the accompanying drawings and examples.

Fig. 1 is agent structure schematic perspective view of the present invention.

Fig. 2 is main truss structural upright schematic diagram of the present invention.

Fig. 3 is the secondary frame construction schematic perspective view of the present invention.

Fig. 4 is present invention wheel set axle box device structural upright schematic diagram.

Fig. 5 is present invention connection Suspension hook structure schematic perspective view.

100. main truss in figure, 200. secondary frameworks, 300. wheels are to axle box, and 101. curb girders, 102. crossbeams, 103. main truss are hung Seat, 201. anti-hunting damper holders, 202. attachment pegs, 203. small curb girders, 204. axle box seatings, 205. rigid friction plates, 206. small horizontal strokes Beam, 207. elastic-friction pieces, 208. hinges, 209. rubber springs, 210. secondary frameworks are revoked, 211. free bearings.

Embodiment

Fig. 1 is agent structure of the invention, mainly big by Fig. 2 main truss, the secondary frameworks of Fig. 3 and Fig. 4 wheels set axle box device three Part is constituted, and Fig. 2 main truss couples suspension hook through Fig. 5 with the secondary frameworks of Fig. 3 and coupled.

In the embodiment depicted in figure 2, two curb girders 101 and two crossbeams 102 together constitute the main part of main truss, In the middle of two crossbeams of main truss, a main truss flap seat 103 is installed, and there is a hanger on main truss flap seat 103.

In the embodiment shown in fig. 3, two small curb girder 203, a needle beam 206 and two axle box seatings 204 constitute one Contraband font end-rack, and have on two axle box seatings 204, one of axle box seating and to be rubbed in the presence of a rigidity in the end connection of small curb girder There is a hinge 208 and an elastic-friction piece 207 in pad 205, another axle box seating centre position.Two end-rack structure phases Together, it is hinged by free bearing 211, and two anti-hunting damper holders 201 is installed in end-rack both sides, is carried out with coupling hinge 202 Connection, before two end-rack, is provided with two rubber springs 209, and there is certain pre-pressing force.

In the embodiment shown in fig. 4, two wheels 302 are arranged on axletree 303, and two axle box devices 301 are respectively mounted At the two ends of axletree 303, composition wheel set axle box device.

Main truss shown in Fig. 2 is fallen within four axle box seatings 204 of secondary framework, the hinge of the axle box seating of secondary framework diagonal position 208 coordinate with the hinge hole of main truss lower end so that secondary framework can be rotated relative to main truss, the centre of main truss and pair framework Position is coupled with the connection suspension hook shown in Fig. 5, and there is provided the vertical constraint of secondary framework.Wheel set axle box device shown in Fig. 4 then passes through Axle box 301 is coupled with the assembling of axle box seating 204 with secondary framework, realizes the transmission of power.

Claims

1. a kind of radial steering, it is characterised in that be made up of main truss (100), secondary framework (200) and wheel to axle box (300)； Secondary framework has two " Contraband " shape end-rack, and two end-rack are hinged by a free bearing (211) in the medium position of end-rack needle beam, two The shoulder bridging of end-rack sets anti-hunting damper holder (201), and two ends of each end-rack are nested with wheel pair by axle box seating (204) On axle box；Main truss (100) is in " H " shape structure, and its two curb girders are fallen within four axle box seatings of secondary framework (200), and with Two axle box seatings of diagonal relationship constitute hinge connection；Main truss center has short chain (120) to be coupled with revoke (210) on secondary framework.

2. radial steering according to claim 1, it is characterised in that the shoulder of secondary two end-rack of framework is provided with Rubber spring (209).

3. radial steering according to claim 1, it is characterised in that be provided with friction on the secondary framework axle box seating Elastic-friction piece (207) is set on piece, the axle box seating being hinged with main truss, does not constitute and sets rigidity to rub on the axle box seating being hinged Pad (205).