CN200995690Y - Forced guide mechanism of hinged equipment for independent wheel - Google Patents

Abstract

An independent-wheel hinged vehicle forced-steering mechanism is characterized in that: the mechanism comprises a guide arm (3) hinged with a frame (8), a front-body connecting rod (1) respectively hinged with a front body (9) and the guide arm (3) on both ends, a front-wheel set connecting rod (2) respectively hinged with a front wheel set (6) and the guide arm (3) on both ends, a rear-body connecting rod (5) respectively hinged with a rear body (10) and the guide arm (3) on both ends and a rear-wheel set connecting rod (4) respectively hinged with a rear-wheel set (7) and the guide arm (3); the central part of the guide arm (3) is in a hinged structure with the frame (8), the front-body connecting rod (1) and one end of the front-wheel set connecting rod (2) are hinged on one side of the center of the guide arm, and the rear-body connecting rod (5) and one end of the rear-wheel set connecting rod (4) are hinged on the other side of the center of the guide arm; suppose the midpoint of the guide arm (3) is O, the hinged point between the front-body connecting rod (1) and the guide arm (3) is B, and the hinged point between the rear-body connecting rod (1) and the guide arm (3) is A, thereby the guide gain coefficient of the guide arm (3) Eta=OB/OA=OC/OD=b/1, in the formula, b is half of the axle base between the front-wheel set (6) and the rear-wheel set (7) of a directional bracket (12) on the hinged position of two bodies and 1 is half of the defined spacing of the vehicle.

Description

A kind of independent wheel is to the articulator forced guiding mechanism

Technical field

The utility model belongs to train bogie truck guiding mechanism, the forced guiding mechanism that particularly a kind of independent wheel uses two-axle bogie.

Background technology

" independent wheel for " is with respect to " conventional monolithic wheel to ".The right left and right wheels of conventional monolithic wheel is fitted in axletree two ends by interference fit, and during train operation, axletree is along with wheel rotates together, and left and right wheels rotates synchronously.The right left and right wheels of independent wheel is assemblied in axletree two ends by antifriction-bearing box, and during train operation, axletree does not rotate, and left and right wheels can freely rotate around axletree is nonsynchronous.Front vehicle body and aftercarriage are hinged by hinged hitch, are referred to as " articulator ".

The right great advantage of independent wheel is can reduce the height of floor from rail top of floor light rail vehicle by a relatively large margin and improve Stability of high-speed train, but because independent wheel is to lacking the function of guiding certainly of vertical creep power, so its wheel-rail wear is very serious, wheel track power is bigger, the hidden danger of derailing is also bigger, and the guiding problem is the global problem of the independent wheel of puzzlement to development.In order to capture this difficult problem, brainstrust proposed many solutions both at home and abroad.Initial solution is the particular design wheel tread normally: the contact angular difference that strengthens left and right wheels, so just can strengthen the right gravity recuperability of independent wheel, wheel just can be under the effect of gravity recuperability after to the offset track line of centers and revert to track centre, but this measure can not make independent wheel to be tending towards radial position automatically on curve track.So a lot of researchists have expected guiding mechanism, guiding mechanism comprises self guide mechanism and forced guiding mechanism.Because independent wheel can not be used so depend on the self guide mechanism of vertical creep power there not being vertical creep power, can only consider to adopt forced guiding mechanism.Existing forced guiding mechanism is made of connecting rod and a car body connecting rod connecting rod, trailing wheel guide arm, front-wheel, because it has only a car body connecting rod, therefore, this kind forced guiding mechanism can only be connected with a car body, itself and framework, independent wheel are installed in a underneath its body to the forced steering bogie of forming, its guiding principle is: forced guiding mechanism utilizes the corner between car body and the framework to come adjusting knurl to the corner with respect to framework, thereby the front and back wheel that makes bogie truck is to being tending towards the radial position of curve.This theoretical prerequisite is that the transversal surface at car body spacing center and the transversal surface at wheel-base bogie center all must be on the omnibearing line of curve track, because bogie truck is under the moment loading of existing forced guiding mechanism, the transversal surface at its wheelbase center is wanted deflection curve track omnibearing line certain angle usually, thereby the front and back wheel of forced steering bogie be to just can not or being tending towards the radial position of curve track simultaneously, and there is birth defect in guidance capability that this explanation has forced steering bogie now.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of later-model forced guiding mechanism is provided, and this kind forced guiding mechanism can solve independent wheel up hill and dale to the guiding difficult problem of two-axle bogie on curve track.

Forced guiding mechanism described in the utility model by with framework pivotally attached guide arm, two ends respectively with front vehicle body and guide arm pivotally attached front vehicle body connecting rod, two ends respectively with front-wheel to guide arm pivotally attached front-wheel to connecting rod, two ends respectively with aftercarriage and guide arm pivotally attached aftercarriage connecting rod, two ends respectively with trailing wheel to connecting rod being formed with guide arm pivotally attached trailing wheel; The mid point position of guide arm is provided with and framework pivotally attached structure, and front vehicle body connecting rod and front-wheel are hinged on a side of guide arm mid point to an end of connecting rod, and aftercarriage connecting rod and trailing wheel are hinged on the opposite side of guide arm mid point to an end of connecting rod; If the mid point of guide arm is O, the hinge-point of front vehicle body connecting rod and guide arm is D, and front-wheel is C to the hinge-point of connecting rod and guide arm, and trailing wheel is B to the hinge-point of connecting rod and guide arm, the hinge-point of aftercarriage connecting rod and guide arm is A, then the guiding gain factor of guide arm $\mathrm{\η}=\frac{\mathrm{OB}}{\mathrm{OA}}=\frac{\mathrm{OC}}{\mathrm{OD}}=\frac{b}{l},$ In the formula, b is the right wheelbase of front-wheel pair and the trailing wheel of two car body hinge point bogie trucks half, and l is a rail vehicle name spacing half.Described front vehicle body connecting rod, front-wheel are determined according to following formula the articulated position of connecting rod and guide arm connecting rod, aftercarriage connecting rod and trailing wheel.Use forced guiding mechanism described in the utility model, require in the train each vehicle name spacing 2l to equate.

Bad for articulator forced guiding mechanism when the curvilinear guide is not drawn, guarantee traffic safety, described guide arm length $\mathrm{AD}>\frac{2l\·d}{R},$ In the formula, 2l is a rail vehicle name spacing, d be two guide arms and framework hinge-point O1, O2 line O1O2 partly, R is the minimal curve radius of train operation track.Under the condition that satisfies the structure space requirement, guide arm length A D should approach as far as possible

The front vehicle body connecting rod of forced guiding mechanism described in the utility model is connected with the front vehicle body of articulator, and the aftercarriage connecting rod is connected with the aftercarriage of articulator, so be referred to as the articulator forced guiding mechanism.Two cover forced guiding mechanisms described in the utility model and frameworks, two independent wheels to and some suspension linkage members form and compel that guiding is independent takes turns bogie truck radially, this kind bogie truck must be installed in the hinged place of articulator, and the line of the center of this kind bogie truck and front and back car body hinge-point (being hinged hitch center) must the vertical track horizontal surface.Two covers forced guiding mechanism described in the utility model both can be parallel to orbit plane to be installed, and can install perpendicular to orbit plane again, and mounting means is as follows:

Guide arm symmetry in the two cover forced guiding mechanisms is hinged on the truck frame of car body and car body hinged place, the line O1O2 of hinge-point O1, the O2 of two guide arms and framework is positioned on the transversal surface of wheel-base bogie center, and O1 point and O2 point are about bogie pivot center profile symmetry; In the two cover forced guiding mechanisms with guide arm pivotally attached front vehicle body connecting rod, front-wheel to connecting rod, aftercarriage connecting rod and trailing wheel to the other end of connecting rod respectively with front vehicle body, front-wheel to, aftercarriage, trailing wheel to hinged, the hinge-point G1 of the hinge-point H1 of two front vehicle body connecting rods and front vehicle body and H2, two aftercarriage connecting rods and aftercarriage and G2, two front-wheels to the right hinge-point F1 of connecting rod and front-wheel and F2, two trailing wheels to the right hinge-point E1 of connecting rod and trailing wheel and E2 about bogie pivot center profile symmetry.

Two cover forced guiding mechanisms described in the utility model and frameworks, two independent wheels to and the independent wheel of urgent guiding formed of some suspension linkage members to the guiding principle of bogie truck radially (cover of two among Fig. 4 forced guiding mechanism described in the utility model is to be parallel to orbit plane to install) as shown in Figure 4: when train passes through curve track, the forward and backward car body connecting rod in the one cover forced guiding mechanism and the hinge-point H1 in the forward and backward car body outside and the distance between the G1 can be extended, thereby pulling outside guide arm A1D1 is to anticlockwise motion; Before in the another set of forced guiding mechanism, the aftercarriage connecting rod with before, distance between the hinge-point H2 of aftercarriage inboard and the G2 can shorten, thereby drive inboard guide arm A2D2 also to anticlockwise motion, so just make the hinge-point line O1O2 in the interior outside of two guide arms and framework be in all the time on the angular bisector of front and back car body angle, because the nominal spacing of front and back car body equates, angular bisector just is equivalent to the omnibearing line of this point of curve track, and the hinge-point line O1O2 in the outside just in time is positioned on the transversal surface of wheel-base bogie center in two guide arms and the framework, that is to say that car body forces wheel-base bogie center transversal surface to be in the radial position of curve track by forced guiding mechanism before and after the pivotally attached.In case wheel-base bogie center transversal surface is in the radial position of curve track, just can be by the guide arm in the forced guiding mechanism being provided with front and rear wheel that rational guiding gain factor makes bogie truck to being tending towards the radial position of curve track simultaneously, thus independent wheel solved up hill and dale to the guiding difficult problem of two-axle bogie on curve track.

The utlity model has following beneficial effect:

1, describe as can be seen from above-mentioned guiding principle, forced guiding mechanism described in the utility model provides a kind of technical scheme of different designs for solving independent wheel to the guiding problem of two-axle bogie on curve track.

2, use forced guiding mechanism described in the utility model, can force independent wheel to the front and rear wheel of bogie truck to being tending towards the radial position of curve track simultaneously, thereby thoroughly solved the right guiding difficult problem of independent wheel.In a single day the right guiding difficult problem of independent wheel has solved, and travel safety will improve greatly, and wheel-rail wear and wheel-rail noise also can reduce significantly.

3, simple in structure, be easy to make, install and maintenance.

Description of drawings

Fig. 1 is a kind of structural representation of independent wheel described in the utility model to the articulator forced guiding mechanism;

Fig. 2 is the scheme of installation of independent wheel described in the utility model to the articulator forced guiding mechanism;

To be two cover forced guiding mechanisms described in the utility model and frameworks, two-wheeled take turns bogie truck scheme of installation ON TRAINS radially the urgent guiding independence of forming Fig. 3;

Fig. 4 is two cover forced guiding mechanisms described in the utility model and frameworks, two-wheeled to the independent wheel of urgent guiding the formed guiding principle figure when radially bogie truck passes through curve track, and among the figure, O is the center of circle of curve track.

Among the figure, 1-front vehicle body connecting rod, 2-front-wheel are taken turns bogie truck bogie truck 13-train rear end tradition radially the independent wheel of the urgent guiding of bogie truck 12-train hinged place, 8-framework, 9-front vehicle body, 10-aftercarriage, 11-train front end tradition wheel, 7-trailing wheel connecting rod, 5-aftercarriage connecting rod, 6-front-wheel connecting rod, 3-guide arm, 4-trailing wheel.

The specific embodiment

Independent wheel in the present embodiment is made up of connecting rod 4 connecting rod 2, aftercarriage connecting rod 5 and trailing wheel guide arm 3, front vehicle body connecting rod 1, front-wheel to the structure of articulator forced guiding mechanism as shown in Figure 1.If the mid point of guide arm 3 is O, the hinge-point D of front vehicle body connecting rod 1 and guide arm 3, front-wheel are positioned at the side of guide arm mid point O to the connecting rod 2 and the hinge-point C of guide arm 3, and trailing wheel is positioned at the opposite side of guide arm mid point to the hinge-point B of connecting rod 4 and guide arm 3, aftercarriage connecting rod 5 and the hinge-point A of guide arm 3.Guide arm length $\mathrm{AD}>\frac{2l\·d}{R},$ Front vehicle body connecting rod 1, front-wheel are pressed the guiding gain factor of guide arm to the connecting rod 4 and the hinge-point of guide arm 3 to connecting rod 2, aftercarriage connecting rod 5 and trailing wheel $\mathrm{\η}=\frac{\mathrm{OB}}{\mathrm{OA}}=\frac{\mathrm{OC}}{\mathrm{OD}}=\frac{b}{l}$ Determine (in described two formulas, the definition of l, b, d, R is as described in the summary of the invention part).The articulated structure with framework 8 that guide arm 3 mid point positions are provided with is a pin-and-hole, and front vehicle body connecting rod 1, front-wheel are that sphere is hinged to connecting rod 2, aftercarriage connecting rod 5 and trailing wheel to the articulated manner of connecting rod 4 and guide arm 3.

Two cover described forced guiding mechanisms and frameworks, two-wheeled to and some suspension linkage members form and compel that guiding is independent takes turns bogie truck 12 radially, this kind compeled the independent wheel of guiding to bogie truck mounting means ON TRAINS radially as shown in Figure 3, among the figure, 2b is the front-wheel pair wheelbase right with trailing wheel of two car body hinge point bogie trucks, and 2l is a rail vehicle name spacing.

The independent wheel of two covers is to the concrete mounting means of articulator forced guiding mechanism as shown in Figure 2: two cover forced guiding mechanisms are in the framework left and right sides of car body and car body hinged place symmetric arrangement, and are parallel to the orbit plane installation.Guide arm 3 symmetries in the two cover forced guiding mechanisms are hinged on the framework, and its articulated manner is that pin is hinged; The line O1O2 of hinge-point O1, the O2 of two guide arms and framework is positioned on the bogie truck 12 wheelbase center transversal surfaces, and O1 point and O2 point are about bogie truck 12 central longitudinal section symmetries.In the two cover forced guiding mechanisms with guide arm 3 pivotally attached front vehicle body connecting rods 1, front-wheel to connecting rod 2, aftercarriage connecting rod 5 and trailing wheel to the other end of connecting rod 4 respectively with front vehicle body 9, front-wheel to 6, aftercarriage 10, trailing wheel be hinged to 7 spheres; The hinge-point G1 of the hinge-point H1 of two front vehicle body connecting rods 1 and front vehicle body 9 and H2, two aftercarriage connecting rods 5 and aftercarriage 10 and G2, two front-wheels to connecting rod 2 and front-wheel to 6 hinge-point F1 and F2, two trailing wheels to connecting rod 4 and trailing wheel to 7 hinge-point E1 and E2 about bogie truck 12 central longitudinal section symmetries.

Independent wheel described in the utility model also can be used for the tradition wheel to bogie truck to the articulator forced guiding mechanism, it can make tradition wheel better to the steering capability of bogie truck, is reducing the wheel-rail noise of high speed train, reduces wheel track power, alleviates wheel-rail wear, is improving aspects such as traffic safety boundless application prospect is also arranged.

Claims (5)

1, a kind of independent wheel is characterized in that by with front-wheel (6) and guide arm (3) pivotally attached front-wheel being formed connecting rod (4) (7) and guide arm (3) pivotally attached trailing wheel with trailing wheel respectively with aftercarriage (10) and guide arm (3) pivotally attached aftercarriage connecting rod (5), two ends respectively connecting rod (2), two ends respectively with front vehicle body (9) and guide arm (3) pivotally attached front vehicle body connecting rod (1), two ends respectively with framework (8) pivotally attached guide arm (3), two ends the articulator forced guiding mechanism;

The mid point position of guide arm (3) is provided with and framework (8) pivotally attached structure, front vehicle body connecting rod (1) and front-wheel are hinged on a side of guide arm mid point to an end of connecting rod (2), aftercarriage connecting rod (5) and trailing wheel are hinged on the opposite side of guide arm mid point to an end of connecting rod (4)

If the mid point of guide arm (3) is O, front vehicle body connecting rod (1) is D with the hinge-point of guide arm (3), front-wheel is C to the hinge-point of connecting rod (2) and guide arm (3), trailing wheel is B to the hinge-point of connecting rod (4) and guide arm (3), aftercarriage connecting rod (5) is A with the hinge-point of guide arm (3), then the guiding gain factor of guide arm (3) $\mathrm{\η}=\frac{\mathrm{OB}}{\mathrm{OA}}=\frac{\mathrm{OC}}{\mathrm{OD}}=\frac{b}{l},$

In the following formula, b be the front-wheel of two car body hinge point bogie trucks (12) to (6) and trailing wheel to the wheelbase of (7) half, l is a rail vehicle name spacing half.

2, a kind of independent wheel according to claim 1 is characterized in that guide arm length to the articulator forced guiding mechanism $\mathrm{AD}>\frac{2l\·d}{R},$ In the formula, 2l is a rail vehicle name spacing, d be two guide arms and framework hinge-point O1, O2 line O1O2 partly, R is the minimal curve radius of train operation track.

3, a kind of independent wheel according to claim 1 and 2 is characterized in that to the articulator forced guiding mechanism articulated structure with framework (8) that guide arm (3) mid point position is provided with is a pin-and-hole.

4, a kind of independent wheel according to claim 1 and 2 is to the articulator forced guiding mechanism, it is characterized in that front vehicle body connecting rod (1), front-wheel are that sphere is hinged to connecting rod (2), aftercarriage connecting rod (5) and trailing wheel to the articulated manner of connecting rod (4) and guide arm.

5, a kind of independent wheel according to claim 3 is to the articulator forced guiding mechanism, it is characterized in that front vehicle body connecting rod (1), front-wheel are that sphere is hinged to connecting rod (2), aftercarriage connecting rod (5) and trailing wheel to the articulated manner of connecting rod (4) and guide arm.

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