EP0591088B1 - Bogies for railway vehicles with variable gap between wheels - Google Patents
Bogies for railway vehicles with variable gap between wheels Download PDFInfo
- Publication number
- EP0591088B1 EP0591088B1 EP93500060A EP93500060A EP0591088B1 EP 0591088 B1 EP0591088 B1 EP 0591088B1 EP 93500060 A EP93500060 A EP 93500060A EP 93500060 A EP93500060 A EP 93500060A EP 0591088 B1 EP0591088 B1 EP 0591088B1
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- EP
- European Patent Office
- Prior art keywords
- bogie
- wheels
- sliding
- center frame
- railway vehicles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F3/00—Types of bogies
- B61F3/16—Types of bogies with a separate axle for each wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F7/00—Rail vehicles equipped for use on tracks of different width
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H9/00—Brakes characterised by or modified for their application to special railway systems or purposes
Definitions
- the present invention relates to bogies for railway vehicles with variable gap between wheels as per the preamble of claim 1, the evident object of which is to allow a variable gap between the bogie wheels, the bogie being equiped with independent wheels, and each rolling assembly being composed of a wheel fixed to an independent axle provided with bearings located at both ends, there being the possibility of displacing each complete rolling assembly, the arrangement of the bearing boxes changing only and exclusively in relation to the bogie.
- This invention applies to the industry engaged in the construction of railway vehicles, and its general application being also to the railway industry.
- One of the present solutions is to replace the whole bogies, for which it is totally necessary to raise the coach bodies, - disassembling previously the elements forming the brakes, as well as the electric mass braids, etc., these operations representing a substantial amount of lost time and which are considered as extremely laborious.
- the main difficulty impeding to obtain an appropiate mechanism of this type is, mainly, the fastening of the wheel to the axle body so that it can give the same guarantees of safety, toughness, etc., etc., as the wheels fitted under pressure to an axle according to the typical procedure.
- each rolling assembly is formed by a wheel fixed to an independent axle fitted with bearings at both ends thereof, relying on the possibility of displacing each complete rolling assembly, the arrangement of the bearing boxes changing only functionally with regard the bogie.
- the bogies for railway vehicles with variable gap between wheels will allow a quick change of the gap between wheels when passing through a fixed installation carrying out the necessary operations for running via two networks having a different gauge.
- the invention has the following advantages incorporated in - this new type of bogies.
- the bogie which is the object of this invention is essentially composed of a center frame, to which four oscillating arms are united by means of corresponding joints , at one of which ends bearing boxes for each of the rolling assemblies are housed.
- Said rolling assemblies can move transversely, the wheels - being located in each of two positions corresponding to both - gauges.
- each arm rests on the relative helical spring, the lower end of which rests on the center frame bottom.
- the bogie is equipped with another secondary suspension.
- this type of bogie would be equipped with a guiding system, or the system could be adapted to an articulated bogie.
- Each bogie is fitted with four rolling assemblies, each of which is composed of a semiaxle, wheel, brake discs, all them common each other, and the bearing boxes mounted at the ends of the semiaxle.
- the bearing boxes have, at their upper side, a cylindrical surface on which the relative end of the oscillating arm of the bogie is resting, in the normal running position.
- a resilient sheet can be interposed between the bearing box and the housing cradle, and said sheet must be securely fastened to one of these surfaces.
- the vertical position bewteen bearing boxes and oscillating arm is, in this way, defined.
- Said surface being cylindrical, in a longitudinal sense, the axis of the bearing box is automatically centered on its theorical position.
- the vertical flat faces one at front and one at rear, are fitted on the relative vertical flat faces of inserts.
- each of said lugs wherein this contact is effected, are separated each other a distance which is similar to the half difference of gauges decreased of the latch thickness.
- the latches which are common with a bridge, are adjusted in longitudinal sense by their outer transverse faces between the two vertical faces of the oscillating arm case, their correct position being held because the latches are adjusted between the vertical longitudinal faces of the inserts which are common in the oscillating arm case.
- the spring mechanism is complemented by an additional safety retaining device.
- the bridge of the latching device is so designed that a "T" shaped part belonging to the fixed installation can be introduced into the lower part of said bridge.
- This "T” shaped part forces it to be vertically displaced, causing the latches to descend, overcoming the force opposed by springs, retainers and frictions.
- Said bridge is designed in such a way that its inside adapts itself to the inclined planes existing on the dislatching guides of the fixed installation, so that they act on the central zone of the bridge.
- the bridge has vertical transverse faces on which the faces of the bearing boxes are adjusted in a longitudinal sense.
- a part presents a transverse guide which has an upper face inclined constituting the sliding surface of the bearing box during the transverse displacement of the rolling assembly.
- the lower faces of the lugs have this same inclination and in normal running they are separated from the upper faces of the guides and parallel thereto.
- the bogie for railway vehicles with variable gap between wheels which is the object of this invention, configurates starting from a center frame 1, to which four oscillating arms are united by means of relative joints 2, at one of which ends the bearing boxes for each of the rolling assemblies 3 are housed.
- These rolling assemblies 3 can transversely move, the wheels being placed in each of two position corresponding to both gauges.
- each of the arms is resting on the relative helical spring 4, the lower end of which is resting on the center frame bottom 1.
- each of these assemblies constitutes the suspension of the corresponding rolling assembly, it being specifically understood that, apart from this primary suspension, the bogie will be equipped with another secondary suspension.
- this type of bogie will be equipped with a guiding system, or by means of a system which could be adapted to an articulated bogie.
- Each bogie is fitted with four rolling assemblies as that shown in Figure 3, each of which is composed of a semiaxle 6, a wheel 7, brake discs 8, which are common each other, and the bearing - boxes 9 which are mounted at the semiaxle ends.
- the bearing boxes 9, which can be seen in Figure 3, have, at their upper part, a cylindrical surface 10 on which there is resting, in the normal running position, the relative oscillating arm end of the bogie, such as it is shown at the sectioal view of Figure 4.
- a resilient sheet can be interposed between the bearing box and the housing cradle, this sheet must be firmly adhered to one of these surfaces.
- Said surface being cylindrical, in a longitudinal sense, the axis of the bearing box is automatically centered in its theorical position.
- the vertical flat faces 11, one at front and one at rear, are fitted on the relative vertical flat faces of inserts 12 and 13.
- Lugs 14 located on the front and rear vertical faces of each bearing boxes, and which are common to it, constitute the transverse fastening elements of the bearing boxes.
- each of said lugs 12 wherein this contact is made, are separated each other a distance which is similar to the half difference of gauges decreased of the latch thickness 14.
- the latches 16, which are common with a bridge 17, are adjusted in longitudinal sense by their outer transverse faces between the two vertical faces of the oscillating arm case, their correct position being held because the latches are adjusted between the vertical longitudinal faces of the inserts 12 and 13, which are common with the oscillating arm case.
- the latches only can be displaced in vertical sense, their displacement being impeded in any other direction by means of rigid stops.
- the spring mechanism 18 is complemented with an additional safety retaining device 19.
- the bridge 17 of the latching device is so designed that a "T"-shaped part belonging to the fixed installation can be introduced into the lower part of said bridge,
- the "T” shaped part forces it to be vertically displaced, causing the latches to - descend, overcoming the force opposed by the springs, retainers and frictions.
- Said bridge is designed in such a way that its inside adapts itself to the inclined planes existing on the dislatching guides of the fixed installation, so that they act on the central zone of the bridge.
- the inserts 12 and 13 which are mounted in common on the vertical faces of the oscillating arm case, in addition to act as a transverse stop for the latches, have vertical transverse faces on which the faces 11 of the bearing boxes are adjusted in longitudinal sense.
- the part 13 has, moreover, a transverse guide 20, having its upper face inclined, which constitutes the sliding surface of - the relative bearing box during the transverse displacement of the rolling assembly.
- the lower faces 21 of the lugs 14 have this same inclination and in normal running they are separated from the upper faces of guides 20 and parallel to it.
- the change of gap between wheels is to be always made with the aid of a fixed installation located in the changing station.
- This change is made consecutively in each of the bogies when these pass at a reduced speed, which can attain up to a maximum of 20 km/h, through said fixed installation.
- Figure 13 shows schematically the several elemnts forming part of the installation, which are as follows:
- the end of the rails of the larger gauge is referenced 23, - while the end of the rails of the smaller gauge is referenced 24.
- the sliding and centering guide rails are referenced 25; the unlocking and locking of latches are referenced 26, and the guides for moving the rolling assemblies, with regard to the resilient parts, are referenced 27, and the stiff parts, 28.
- the runner 30.B leans on its support 30.A - through a spherical articulated joint.
- the supporting runners are made of a plastic material and are lubricated with water, so obtaining a very low friction coefficient when they slide on the sliding rail.
- the lubrication with water has a considerable advantage over other lubricants, since it does not cause, in any case, adherences or contamination.
- the section of the upper part of these guides adopts a "T" configuration, which allows the latch bridges to enter it, and owing to the configuration of its vertical profile 31, the latches descend and are held unlocked in the central part of guides, where its profile is fully horizontal.
- the friction parts of the latch bridges 32 are made also of a plastic material, the lubrication is effected also with water in order to obtain the above-mentioned advantages.
- the resilient portion of the guides for displacing the rolling assemblies corresponding to this gauge 27 contact the inner face of wheels.
- the rolling assemblies descend lightly and do not support the upper part 10 of the bearing boxes on the seats of the oscillating arm cases, and then the inclined faces 21 of the mentioned lugs 14 lean on the inclined face of guide 20.
- the wheels lose contact with the resilient part of the moving guides on the side through which it has been entered, and, next, they contact the stiff part of the moving guides on the opposite side, that is to say, where the lesser gauge is located.
- the pressure exerted by the resilient part of the moving guides makes easy to lock the latches.
- the rolling assemblies are locked in a position corresponding to the track having the smaller gauge.
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Abstract
Description
- The present invention relates to bogies for railway vehicles with variable gap between wheels as per the preamble of
claim 1, the evident object of which is to allow a variable gap between the bogie wheels, the bogie being equiped with independent wheels, and each rolling assembly being composed of a wheel fixed to an independent axle provided with bearings located at both ends, there being the possibility of displacing each complete rolling assembly, the arrangement of the bearing boxes changing only and exclusively in relation to the bogie. - This invention applies to the industry engaged in the construction of railway vehicles, and its general application being also to the railway industry.
- It is well known the present problem posed by the different gauges existing in some railway networks affecting the transport of passengers and goods, this circumstance giving rise to carry out several studies and solutions in order to obviate the many drawbacks derived at present from the passenger and goods transport.
- Nevertheless, no fully satisfactory solutions to this problem have been obtained up to date, specially concerning the adaptation of coaches or wagons equipped with bogies of conventional type.
- One of the present solutions is to replace the whole bogies, for which it is totally necessary to raise the coach bodies, - disassembling previously the elements forming the brakes, as well as the electric mass braids, etc., these operations representing a substantial amount of lost time and which are considered as extremely laborious.
- Also, it is known, at present, the realization of a series of devices to obtain an axle capable of carrying out a gap of variable wheels by a displacement on the axle body, but this potential solution does not represent a real practical solution owing to its great complexity and high cost, both in relation to acquisition and maintenance.
- The main difficulty impeding to obtain an appropiate mechanism of this type is, mainly, the fastening of the wheel to the axle body so that it can give the same guarantees of safety, toughness, etc., etc., as the wheels fitted under pressure to an axle according to the typical procedure.
- Besides, if it is necessary that the change is to be made - automatically in a short period of time and that sufficiently extensive distances can be travelled under perfect running conditions without the need for the mechanism to be overhauled in the maintenance workshop, it is very difficult to obtain a gear answering to all these requirements in a practical field.
- It is known the existence of a Patent of Invention applied for in Spain under number 332.453 (= FR-A-1.558.329), which was filed at the right moment in the name of the firm PATENTES TALGO, S.A., this firm being also the applicant for the present Patent. In said Patent the idea of using monoaxle bogies with variable gap between wheels is envisaged.
- Also, a truck for a railway car having rocker arms connected to a cross-beam is disclosed in US-A-3.948.188.
- Nevertheless, in the general context of the invention, a series of requirements at present considered as strictly essential in order to obtain a good running of the railway unit are not anticipated .
- The bogies for railway vehicles with variable gap between - wheels as proposed by the invention constitutes, per se, a clear solution to the current problem on this matter, since in the invention it has been provided that each rolling assembly is formed by a wheel fixed to an independent axle fitted with bearings at both ends thereof, relying on the possibility of displacing each complete rolling assembly, the arrangement of the bearing boxes changing only functionally with regard the bogie.
- In this way, the same features shown in a rolling assembly - envisaged for a change of gauge are practically obtained as - those existing in a conventional rolling assembly for a sole gauge.
- In a more definite way, the bogies for railway vehicles with variable gap between wheels will allow a quick change of the gap between wheels when passing through a fixed installation carrying out the necessary operations for running via two networks having a different gauge.
- The invention has the following advantages incorporated in - this new type of bogies.
- The rolling assemblies are the same type as the tested ones for long years in commercial service in the rolling gears used by the firm PATENTES TALGO, which is also the applicant for this Patent, composed of two wheels which are daily running on the European network and the two gauges of the Spanish network.
- The passing from one to another gauge would be effected at a gauge change installation similar to the existing ones at present to carry out the gauge change of the above-mentioned TALGO rolling assemblies.
- Both the steering and the brake conditioning is common for both gauges, not requiring any additional operation for being adapted to one or other gauge.
- The aforesaid advantages are achieved by means of the features constituting the characterizing part of
claim 1. Further embodiments are described independent claims 2 to 4. - In general, the bogie which is the object of this invention is essentially composed of a center frame, to which four oscillating arms are united by means of corresponding joints , at one of which ends bearing boxes for each of the rolling assemblies are housed.
- Said rolling assemblies can move transversely, the wheels - being located in each of two positions corresponding to both - gauges.
- The opposite part of each arms rests on the relative helical spring, the lower end of which rests on the center frame bottom.
- At the end of this part, there is also mounted the relative vertical shock absorber.
- Each of these assemblies, that is to say, oscillating arm - with joint, helical spring and shock absorber, constitutes the suspension of the relative rolling assembly
- Apart from this primary suspension, the bogie is equipped with another secondary suspension.
- In order to improve its coincidence in curves and to eliminate the dynamic effects inherent in being fitted with independent wheels, this type of bogie would be equipped with a guiding system, or the system could be adapted to an articulated bogie.
- Each bogie is fitted with four rolling assemblies, each of which is composed of a semiaxle, wheel, brake discs, all them common each other, and the bearing boxes mounted at the ends of the semiaxle.
- The bearing boxes have, at their upper side, a cylindrical surface on which the relative end of the oscillating arm of the bogie is resting, in the normal running position.
- In order to distribute in a more even way the loads on the supporting surface, a resilient sheet can be interposed between the bearing box and the housing cradle, and said sheet must be securely fastened to one of these surfaces.
- The vertical position bewteen bearing boxes and oscillating arm is, in this way, defined.
- It must be born in mind, in order to obtain a good understanding of the invention, that longitudinal axles, efforts and displacements are designated those parallel to the track, and transverse ones to those perpendicular to the track, as per a horizontal plan.
- Said surface being cylindrical, in a longitudinal sense, the axis of the bearing box is automatically centered on its theorical position.
- The vertical flat faces, one at front and one at rear, are fitted on the relative vertical flat faces of inserts.
- Between the outer casing of the bearing box and the pail - thereof, there is interposed a resilient bushing so the bearings will have a small degree of freedom to absorbe any small axial alignment error, this freedom being necessary in order that the transverse efforts caused in the running will be transmitted to the oscillating arm of the bogie through both bearing boxes of each semiaxle.
- Lugs located on the front and rear vertical faces of each - bearing boxes, and which are common with it, constitute the - transverse fastening elements of the bearing boxes.
- Adjusting these elements between the stop of the oscillating arm case and some latches, every transverse displacement of the bearing boxes is impeded.
- The two vertical longitudinal faces of each of said lugs, wherein this contact is effected, are separated each other a distance which is similar to the half difference of gauges decreased of the latch thickness.
- The latches, which are common with a bridge, are adjusted in longitudinal sense by their outer transverse faces between the two vertical faces of the oscillating arm case, their correct position being held because the latches are adjusted between the vertical longitudinal faces of the inserts which are common in the oscillating arm case.
- in this manner, the latches only could be moved in vertical sense, their displacement being avoided in any other direction by means of stiff stops.
- Vertically, they are fixed in their running position by means of springs, the pretension of which higher than the latching - device weight plus the dynamic force which may be produced, impedes these to descend.
- Depending upon circumstances, the spring mechanism is complemented by an additional safety retaining device.
- The bridge of the latching device is so designed that a "T" shaped part belonging to the fixed installation can be introduced into the lower part of said bridge. This "T" shaped part forces it to be vertically displaced, causing the latches to descend, overcoming the force opposed by springs, retainers and frictions.
- Said bridge is designed in such a way that its inside adapts itself to the inclined planes existing on the dislatching guides of the fixed installation, so that they act on the central zone of the bridge.
- By means of the inserts which are mounted in common on the - vertical faces of the oscillating arm case, besides to act as a transverse stop for the latches, the bridge has vertical transverse faces on which the faces of the bearing boxes are adjusted in a longitudinal sense.
- A part presents a transverse guide which has an upper face inclined constituting the sliding surface of the bearing box during the transverse displacement of the rolling assembly.
- The lower faces of the lugs have this same inclination and in normal running they are separated from the upper faces of the guides and parallel thereto.
- When the bogie has been suspended, the bearing boxes descend until the lower faces of lugs rest on the guides, the transverse displacement being effected through this contact.
- The inclination of the sliding faces of the guides impedes any particle which could hinder the side displacement of the wheel when changing the gauge settle on them during the running.
- By means of slides made of syntherized metallic material having a low coefficient of sliding friction and high compression resistance, located on the inclined planes of the lugs, the sliding of the rolling assemblies when transferring these to be positiones on each of both gauges is facilitated.
- Through the vertical transverse face of the lugs, the steering of brakes accompanying the wheel in its displacement would be fastened.
- To complement the description being made here and in order to help to a better understanding of the features of this invention, the accompanying drawings, which are a part of this specification, show, in an illustrative and non limitative way, the following:
- Figure 1 shows a side elevational view of the bogie for railway vehicles with variable gap between wheels which is the object of the invention.
- Figure 2 shows a plan view of the object illustrated in Figure 1.
- Figure 3 shows a perspective view of one of four rolling - assemblies incorporated in the bogie which is the object of the invention
- Figure 4 shows a side elevational view of the cylindrical surface on which the relative end of the oscillating arm of the bogie is resting in a normal running position.
- Figure 5 shows a plan view of the object illustrated in Figure 4.
- Figure 6 shows a sectional detail along A-B of the object illustrated in Figures 4 and 5.
- Figure 7 shows a perspective view of the vertical flat faces, one in front and one in rear, which are adjusted on the relative vertical flat faces of the inserts.
- Figure 8 shows a sectional view of the object illustrated in Figure 7, corresponding to positioning and blocking elements of the bearing box in the oscillating arm case of suspension.
- Figure 9 shows a detail of the object illustrated in Figures 7 and 8, along the line C-D.
- Figure 10 shows a front elevational view duly sectioned from the rolling assembly and the housing cases of bearings.
- Figure 11 shows a perspective view of the locking latch assembly.
- Figure 12 shows a sectional view of the object illustrated in Figure 11.
- Figure 13 shows a plan view of the fixed installation for - changing the gauges.
- Figure 14 shows, finally, a sectional view of the centering and sliding runners resting on the sliding rail.
- From these figures, it can be seen how the bogie for railway vehicles with variable gap between wheels, which is the object of this invention, configurates starting from a
center frame 1, to which four oscillating arms are united by means ofrelative joints 2, at one of which ends the bearing boxes for each of the rollingassemblies 3 are housed. - These rolling
assemblies 3 can transversely move, the wheels being placed in each of two position corresponding to both gauges. - The opposite side of each of the arms is resting on the relative
helical spring 4, the lower end of which is resting on thecenter frame bottom 1. - At the end of the zone as mentioned in the above paragraph, there is mounted the relative
vertical shock absorber 5. - Each of these assemblies, that is to say, oscillating arm - with joint, helical spring and shock absorber, constitutes the suspension of the corresponding rolling assembly, it being specifically understood that, apart from this primary suspension, the bogie will be equipped with another secondary suspension.
- Although not shown the invention in the general figures of the bogie, in order to improve its coincidence in curves and to obviate the dynamic effects inherent in being fitted with independent wheels, this type of bogie will be equipped with a guiding system, or by means of a system which could be adapted to an articulated bogie.
- Each bogie is fitted with four rolling assemblies as that shown in Figure 3, each of which is composed of a
semiaxle 6, awheel 7,brake discs 8, which are common each other, and the bearing -boxes 9 which are mounted at the semiaxle ends. - The bearing
boxes 9, which can be seen in Figure 3, have, at their upper part, acylindrical surface 10 on which there is resting, in the normal running position, the relative oscillating arm end of the bogie, such as it is shown at the sectioal view of Figure 4. - In order to distribute in a more even way the loads on the supporting surfaces, a resilient sheet can be interposed between the bearing box and the housing cradle, this sheet must be firmly adhered to one of these surfaces.
- The vertical position between bearing box and oscillating arm is, in this manner, fully defined.
- It must be born in mind that, for a good understanding of this description, longitudinal axles, efforts and displacements are - those are parallel to the track, and transverse ones are those elements being perpendicular to same, as per a horizontal plan.
- Said surface being cylindrical, in a longitudinal sense, the axis of the bearing box is automatically centered in its theorical position.
- The vertical flat faces 11, one at front and one at rear, are fitted on the relative vertical flat faces of
inserts - Between the outer casing of the bearing box and the pail thereof, there is interposed a resilient bushing so that the bearings will have a small degree of freedom to absorbe any small axial - alignment error, this freedom being necessary in order that the transverse efforts caused in the running will be transmitted to the oscillating arm of the bogie through both bearing boxes of each semiaxle.
-
Lugs 14 located on the front and rear vertical faces of each bearing boxes, and which are common to it, constitute the transverse fastening elements of the bearing boxes. - Adjusted between the
stop 15 or 15' of the oscillating arm case and thelatches 16, they impede every transverse displacement of the bearing boxes. - The two vertical longitudinal faces of each of said lugs 12, wherein this contact is made, are separated each other a distance which is similar to the half difference of gauges decreased of the
latch thickness 14. - The
latches 16, which are common with abridge 17, are adjusted in longitudinal sense by their outer transverse faces between the two vertical faces of the oscillating arm case, their correct position being held because the latches are adjusted between the vertical longitudinal faces of theinserts - In this way, the latches only can be displaced in vertical sense, their displacement being impeded in any other direction by means of rigid stops.
- Vertically, they are fixed in their running position by means of
springs 18, the pretension of which, higher than the latching device plus the dynamic forces which could be produced, impedes these to descend. - Eventually, the
spring mechanism 18 is complemented with an additionalsafety retaining device 19. - The
bridge 17 of the latching device is so designed that a "T"-shaped part belonging to the fixed installation can be introduced into the lower part of said bridge, The "T" shaped part forces it to be vertically displaced, causing the latches to - descend, overcoming the force opposed by the springs, retainers and frictions. - Said bridge is designed in such a way that its inside adapts itself to the inclined planes existing on the dislatching guides of the fixed installation, so that they act on the central zone of the bridge.
- A design of this type is shown in perspective and in sectional view in Figures 11 and 12.
- The
inserts faces 11 of the bearing boxes are adjusted in longitudinal sense. - The
part 13 has, moreover, atransverse guide 20, having its upper face inclined, which constitutes the sliding surface of - the relative bearing box during the transverse displacement of the rolling assembly. - The lower faces 21 of the
lugs 14 have this same inclination and in normal running they are separated from the upper faces ofguides 20 and parallel to it. - When the bogie has been suspended, the bearing boxes descend until the lower faces 21 of the
lugs 14 rest on theguides 20, the transverse displacement being effected through this contact. - The inclination of the sliding faces of
guides 20 impedes any particle which could hinder the lateral displacement of the wheel when changing the gauge settle on them during the running. - By means of slides made of a syntherized metallic material having a low coefficient of sliding friction and high compression resistance, located on the
inclined planes 21 of lugs, the sliding of the rolling assemblies when transferring these to be positioned on each of both gauges is facilitated. - Although not shown, the common fastening of the brake steering accompanying the wheel on its displacement will be carried out on the vertical
transversal face 22 oflugs 14. - In order to complement this description, to carry out the gap change between wheels for adapting them to each of two gauges, a brief description of the several operations to be carried out on the subject matter of the invention is given as follows:
- The change of gap between wheels is to be always made with the aid of a fixed installation located in the changing station.
- This change is made consecutively in each of the bogies when these pass at a reduced speed, which can attain up to a maximum of 20 km/h, through said fixed installation.
- Figure 13 shows schematically the several elemnts forming part of the installation, which are as follows:
- The end of the rails of the larger gauge is referenced 23, - while the end of the rails of the smaller gauge is referenced 24.
- The sliding and centering guide rails are referenced 25; the unlocking and locking of latches are referenced 26, and the guides for moving the rolling assemblies, with regard to the resilient parts, are referenced 27, and the stiff parts, 28.
- Assuming that a bogie accedes the fixed installation through the larger gauge, left hand side on Figure 13, the process for changing the gauge is as follows when the vehicle moves:
- In order to carry out the moving operation of the rolling assemblies, it is necessary that the wheels do not support any load, this being obtained by the support of the bogie on the guiding rails, that is to say, by unloading the wheels.
- This unloading of wheels is effected in a smooth way, by descending the
rails 23 before they are discontinued, and at the right moment, according to the wheel diameter, the sliding and centering runners fitted in the oscillating arms of the bogie frame,reference - In order to obtain the larger surface of support between the sliding
runners 30 and the slidingrail 25, specially at the - initial contact, the runner 30.B leans on its support 30.A - through a spherical articulated joint. - The supporting runners, as well as the centering runners, are made of a plastic material and are lubricated with water, so obtaining a very low friction coefficient when they slide on the sliding rail.
- The lubrication with water has a considerable advantage over other lubricants, since it does not cause, in any case, adherences or contamination.
- Once the rolling assembly has been unloaded, it is necessary to unblock the rolling assemblies from the double locking of the latch stems, and for it the fixed installation has four unlocking -locking guides referenced 26, which are suitably located in relation to the longitudinal axis of the installation.
- The section of the upper part of these guides adopts a "T" configuration, which allows the latch bridges to enter it, and owing to the configuration of its
vertical profile 31, the latches descend and are held unlocked in the central part of guides, where its profile is fully horizontal. - Since the friction parts of the latch bridges 32 are made also of a plastic material, the lubrication is effected also with water in order to obtain the above-mentioned advantages.
- During the process of unlocking the latches, the resilient portion of the guides for displacing the rolling assemblies corresponding to this
gauge 27 contact the inner face of wheels. - The pressure exerted on them favours the unlocking operation of the latches.
- Before the mentioned unlocking of the latches, once the wheels have been unloaded, the rolling assemblies descend lightly and do not support the
upper part 10 of the bearing boxes on the seats of the oscillating arm cases, and then the inclined faces 21 of the mentioned lugs 14 lean on the inclined face ofguide 20. - Later, as the rolling assemblies of the bogie, which is the object of this invention, advance through the fixed installation, the wheels lose contact with the resilient part of the moving guides on the side through which it has been entered, and, next, they contact the stiff part of the moving guides on the opposite side, that is to say, where the lesser gauge is located.
- During the contact of the wheels with this stiff part, the - latches are unlocked and the wheels are transferred to the lesser gauge.
- Later, the wheels still contact the resilient part of the moving guides and the latch guides press the latches upwards, that is to say, locking the latches.
- The pressure exerted by the resilient part of the moving guides makes easy to lock the latches.
- Once the process for moving the rolling assemblies has been completed, the rolling assemblies are locked in a position corresponding to the track having the smaller gauge.
- Lastly, since the rolling assemblies are still advancing, there is a determinate moment in which the wheels contact the upward rails of the smaller gauge track, and the above-mentioned sliding and centering runners lose their contact with the sliding rails, the bogie is in a position to run over the track of this gauge.
- The reverse process of passing from the track of smaller gauge to the track of larger gauge is carried out in a similar way.
- It is not considered necessary to extend more this description for an expert in the art to understand the scope of the invention and the advantages derived from it.
- The materials, shape, size and arrangement of its components are open to variation, provided that it does not imply any alteration to the essence of the invention.
- The terms under which this specification has been described should be taken in an ample and non limitative sense.
Claims (4)
- Bogie for railway vehicles with variable gap between wheels comprising a center frame (1) and four rolling assemblies (3) movable transversely to place the bogie wheels (7) in each of two positions corresponding to two different track gauges, each rolling assembly (3) consisting of a semiaxle (6), a wheel (7), two brake discs (8) integrally joined to each other and two inner and outer bearing boxes (9) mounted on the semiaxle ends and locked against transversal movement by latches (16), characterized by further comprising four oscillating arms united to the center frame (1) through corresponding joints (2) and provided in one end thereof with two inner and outer housing cradles for receiving the bearing boxes (9) of each rolling assembly (3), while on their area opposite the housing cradles each oscillating arm is supported on a coil spring (4) the lower end of which rests on the bottom of the center frame (1), and on the end of said opposite area of each oscillating arm a vertical shock absorber (5) is mounted, the oscillating arm with its joint (2), the coil spring (4) and the shock absorber (5) forming a primary suspensión for the rolling assembly (3).
- Bogie for railway vehicles with variable gap between wheels according to claim 1, characterized in that the outer housing cradle in each oscillating arm is provided with a sliding and centering runner (29) projecting perpendicularly to the outer face thereof, and that the center frame (1) is provided, near to the outer end of said joint (2), with a further sliding and centering runner (30) also projecting perpendicularly to the outer face of said frame, both runners (29, 30) being adapted to support and guide the bogie on a sliding and centering rail (25) in a fixed gauge changing installation.
- Bogie for railway vehicles with variable gap between wheels according to claim 2, characterized in that the runner (30) is composed of a sliding portion (30B) which is adapted to contact the upper surface of the rail (25) and bears on a support (30A), included in said runner, through a spherical articulated joint, a centering portion (30C) being also provided, which slightly projects from the outer face of said center frame (1) and is adapted to engage the inner face of said rail (25).
- Bogie for railway vehicles with variable gap between wheels according to claim 3, characterized in that the sliding portion (30B) and the centering portion (30C) are made of a plastics material and lubricated with water to reduce their friction coefficient when sliding on the rail (25).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9201934 | 1992-09-30 | ||
ES09201934A ES2078137B1 (en) | 1992-09-30 | 1992-09-30 | BOGIES FOR RAILWAY VEHICLES WITH VARIABLE SEPARATION BETWEEN WHEELS. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0591088A1 EP0591088A1 (en) | 1994-04-06 |
EP0591088B1 true EP0591088B1 (en) | 1997-10-22 |
Family
ID=8278258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93500060A Expired - Lifetime EP0591088B1 (en) | 1992-09-30 | 1993-05-07 | Bogies for railway vehicles with variable gap between wheels |
Country Status (16)
Country | Link |
---|---|
EP (1) | EP0591088B1 (en) |
JP (1) | JP2502911B2 (en) |
CN (1) | CN1052693C (en) |
AT (1) | ATE159473T1 (en) |
DE (1) | DE69314746T2 (en) |
DK (1) | DK0591088T3 (en) |
ES (1) | ES2078137B1 (en) |
FI (1) | FI934295A (en) |
GR (1) | GR3025932T3 (en) |
HU (1) | HU214409B (en) |
LT (1) | LT3157B (en) |
PL (1) | PL172477B1 (en) |
RO (1) | RO114581B1 (en) |
RU (1) | RU2123952C1 (en) |
SK (1) | SK281265B6 (en) |
UA (1) | UA27042C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2822780A1 (en) | 2001-04-02 | 2002-10-04 | Alstom | BOGIE FOR RAILWAY VEHICLES WITH VARIABLE GAP |
RU2689083C2 (en) * | 2014-09-30 | 2019-05-23 | Патентес Тальго, С.Л. | Running gear of railway vehicles |
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ES2061381B1 (en) * | 1992-11-24 | 1997-11-16 | Talleres Jez | MULTI-PURPOSE DEVIATIONS AND LEAKS PROCEDURE. |
ES2084551B1 (en) * | 1993-10-15 | 1997-10-16 | Talgo Patentes | GUIDING SYSTEM APPLICABLE TO A FOUR-WHEEL BOGIE WITH VARIBAL SEPARATION BETWEEN THE SAME. |
JPH10503145A (en) * | 1995-05-24 | 1998-03-24 | クラウス−マッファイ フェアケールステヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Driven traveling device for rail vehicles with gauge change device |
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ES2133224B1 (en) * | 1996-08-14 | 2000-04-16 | Talgo Patentes | "BOGIE TRACTOR WITH BUILT-IN WIDTH CHANGE SYSTEM" |
ES2178522B1 (en) * | 1999-07-20 | 2004-09-01 | Alstom Transporte, S.A. | PERFECTION IN CONVENTIONAL MOTOR BOGIES WITH ADAPTATION TO DIFFERENT WAYS OF THE ROAD (WITH POSSIBLE APPLICATION TO TRAILERS). |
ES2170619B1 (en) | 1999-11-18 | 2003-12-16 | Talgo Patentes | DISSEMINED TRACTION PROVISION APPLIED TO MONOEJE RAILWAY BEARINGS EQUIPPED WITH INDEPENDENT WHEELS. |
AT503257A3 (en) * | 2006-03-14 | 2010-06-15 | Siemens Ag Oesterreich | WHEEL BAG HOUSING FOR A RAIL VEHICLE |
ES2346945B1 (en) * | 2008-04-29 | 2011-12-23 | Patentes Talgo, S.L. | VARIABLE WIDTH BOGIE WITH ROTATING AXLES AND FIXED INSTALLATION FOR VIA WIDTH CHANGE. |
RU2463192C1 (en) * | 2011-04-12 | 2012-10-10 | Федеральное государственное образовательное учреждение высшего профессионального образования Дальневосточный государственный аграрный университет | Track idler of harvester crawler truck |
CN102897147B (en) * | 2012-10-30 | 2015-09-16 | 中铁第四勘察设计院集团有限公司 | Efficient passenger-cargo sharing changes wheel technique |
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RU2577815C2 (en) * | 2014-07-15 | 2016-03-20 | Общество с ограниченной ответственностью "Энергосервис" | Joint axle box with freight car bogie frame |
RU2572442C1 (en) * | 2014-07-15 | 2016-01-10 | ООО "Энергосервис" | Freight car bogie solebar |
ES2607380B1 (en) * | 2015-09-29 | 2018-02-13 | Patentes Talgo, S.L. | Railway Shaft Assembly |
CN105216825B (en) * | 2015-10-24 | 2017-11-17 | 车晋绥 | Track-space-variable wheel |
RU2635814C1 (en) * | 2016-09-22 | 2017-11-16 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Дальневосточный Государственный Аграрный Университет" | Idler wheel with additional flanges of harvesting machine crawler truck |
CN107628055B (en) * | 2017-09-01 | 2023-08-11 | 西南交通大学 | Gauge conversion assembly applied to gauge-variable bogie |
CN107571886B (en) * | 2017-09-01 | 2023-06-27 | 西南交通大学 | Locking assembly applied to variable-track-gauge bogie |
CN107685742B (en) * | 2017-09-01 | 2023-07-11 | 西南交通大学 | Unlocking piece applied to variable-track-gauge bogie |
CN107600100B9 (en) * | 2017-09-01 | 2023-07-28 | 西南交通大学 | Sliding assembly applied to variable-track-gauge bogie |
CN107521519B (en) * | 2017-09-01 | 2023-07-11 | 西南交通大学 | Variable gauge bogie |
CN107554548B (en) * | 2017-09-01 | 2023-06-27 | 西南交通大学 | Be applied to slider of gauge change bogie |
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CN108128321B (en) * | 2017-12-21 | 2019-11-15 | 大连交通大学 | Hub-type independent wheel bogie |
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CN108394425A (en) * | 2018-05-11 | 2018-08-14 | 吉林大学 | It is a kind of subdivision gauge gauge-changeable bogie wheel to retaining mechanism |
CN108396598B (en) * | 2018-05-11 | 2024-02-27 | 吉林大学 | Ground gauge-changing matching device for gauge-changing bogie |
FR3088043B1 (en) * | 2018-11-06 | 2020-12-04 | Alstom Transp Tech | BOGIE AND RAIL VEHICLE |
RU2706668C1 (en) * | 2018-12-24 | 2019-11-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный университет путей сообщения" (СамГУПС) | Freight car bogie |
CN115230768B (en) * | 2022-08-26 | 2024-02-09 | 中车资阳机车有限公司 | Axle bracket device for straddle type monorail engineering vehicle |
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DE3039369A1 (en) * | 1980-10-18 | 1982-06-03 | Duewag AG, 4150 Krefeld | BOGIE FOR RAIL VEHICLES |
BE1001811A3 (en) * | 1988-06-22 | 1990-03-13 | Ferroviaires & Metall Constr | Joint guidance and device for a rail vehicle lift. |
JPH02105006U (en) * | 1989-02-09 | 1990-08-21 | ||
IT1228887B (en) * | 1989-02-24 | 1991-07-09 | Socimi | MULTI-PURPOSE TROLLEY FOR RAIL VEHICLES |
FR2664222B1 (en) * | 1990-07-05 | 1993-01-15 | Alsthom Gec | BOGIE WITH INDEPENDENT MOTORIZED WHEELS FOR RAIL VEHICLE. |
-
1992
- 1992-09-30 ES ES09201934A patent/ES2078137B1/en not_active Expired - Lifetime
-
1993
- 1993-04-22 JP JP5096189A patent/JP2502911B2/en not_active Expired - Fee Related
- 1993-05-07 AT AT93500060T patent/ATE159473T1/en not_active IP Right Cessation
- 1993-05-07 DK DK93500060.4T patent/DK0591088T3/en active
- 1993-05-07 DE DE69314746T patent/DE69314746T2/en not_active Expired - Fee Related
- 1993-05-07 EP EP93500060A patent/EP0591088B1/en not_active Expired - Lifetime
- 1993-09-29 HU HU9302758A patent/HU214409B/en not_active IP Right Cessation
- 1993-09-29 RU RU93053995A patent/RU2123952C1/en not_active IP Right Cessation
- 1993-09-29 LT LTIP1252A patent/LT3157B/en not_active IP Right Cessation
- 1993-09-29 CN CN93114188A patent/CN1052693C/en not_active Expired - Fee Related
- 1993-09-30 PL PL93300550A patent/PL172477B1/en unknown
- 1993-09-30 RO RO93-01297A patent/RO114581B1/en unknown
- 1993-09-30 FI FI934295A patent/FI934295A/en unknown
- 1993-09-30 UA UA93004621A patent/UA27042C2/en unknown
- 1993-09-30 SK SK1050-93A patent/SK281265B6/en unknown
-
1998
- 1998-01-16 GR GR980400102T patent/GR3025932T3/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2822780A1 (en) | 2001-04-02 | 2002-10-04 | Alstom | BOGIE FOR RAILWAY VEHICLES WITH VARIABLE GAP |
EP1247714A1 (en) | 2001-04-02 | 2002-10-09 | Alstom | Bogie for railway vehicles with variable gauge wheels |
RU2689083C2 (en) * | 2014-09-30 | 2019-05-23 | Патентес Тальго, С.Л. | Running gear of railway vehicles |
Also Published As
Publication number | Publication date |
---|---|
LT3157B (en) | 1995-01-31 |
AU671144B2 (en) | 1996-08-15 |
CN1052693C (en) | 2000-05-24 |
HU9302758D0 (en) | 1994-01-28 |
LTIP1252A (en) | 1994-05-15 |
FI934295A (en) | 1994-03-31 |
PL172477B1 (en) | 1997-09-30 |
JPH06115431A (en) | 1994-04-26 |
HUT71016A (en) | 1995-11-28 |
UA27042C2 (en) | 2000-02-28 |
GR3025932T3 (en) | 1998-04-30 |
ATE159473T1 (en) | 1997-11-15 |
RO114581B1 (en) | 1999-06-30 |
HU214409B (en) | 1998-03-30 |
DE69314746D1 (en) | 1997-11-27 |
AU4750393A (en) | 1994-04-14 |
FI934295A0 (en) | 1993-09-30 |
EP0591088A1 (en) | 1994-04-06 |
ES2078137B1 (en) | 1996-08-16 |
SK105093A3 (en) | 1994-05-11 |
ES2078137A1 (en) | 1995-12-01 |
JP2502911B2 (en) | 1996-05-29 |
SK281265B6 (en) | 2001-01-18 |
CN1091704A (en) | 1994-09-07 |
RU2123952C1 (en) | 1998-12-27 |
DE69314746T2 (en) | 1998-05-20 |
DK0591088T3 (en) | 1998-05-18 |
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