EP3055181A1 - A device for a wheel axle and a track bounded vehicle with such a wheel axle - Google Patents
A device for a wheel axle and a track bounded vehicle with such a wheel axleInfo
- Publication number
- EP3055181A1 EP3055181A1 EP14852806.0A EP14852806A EP3055181A1 EP 3055181 A1 EP3055181 A1 EP 3055181A1 EP 14852806 A EP14852806 A EP 14852806A EP 3055181 A1 EP3055181 A1 EP 3055181A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel axle
- suspension means
- suspension
- wheel
- axle
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 claims abstract description 78
- 230000033001 locomotion Effects 0.000 claims abstract description 31
- 238000009432 framing Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 description 11
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
-
- 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
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
Definitions
- the present invention refers to an axle suspension and a wheel axle preferably for track bounded tools or vehicles, which axle suspension allows the tool to have track contact also at uncorrected track areas and even when the tool has a heavy side displaced load tending to tilting of the tool.
- the technique known per se in this area includes a tool to be driven on a track section where the tool is connected to a wheel axle having track contact and up to a certain limit is able to follow a track section with unfavourable geometry, i.e. the two parallel going rails are not adjusted to each other in the horizontal level.
- the wheel axle is suspended at the framing thereof and is pivotally arranged with respect to the framing around a longitudinal centre axis, whereby hydraulic cylinders are used to lock the angle position of the wheel axle when in work and which support the rest of the vehicle onto this wheel axle though the wheel axle of the tool vehicle itself is not able to maintain a track/ground contact.
- the purpose with the present invention is to obtain an axle device allowing a vertical mobility of the wheels such that the contact with the rail always is maintained.
- the purpose is to obtain such a device which means that the mobility does not act on the tool in a negative way with respect to reduced stability at the working.
- the purpose is also to obtain such a device without additional hydraulic or electrical support functions in the system.
- the invention refers to a device for a wheel axle, which device includes a stiff wheel axle, where a rotatable wheel is carried at each one of the two ends thereof.
- the wheel axle is connected to and is kept within an area by a suspension means directly or indirectly fixed to the framing of a tool or vehicle in such a manner that the wheel axle at one end at least is movable in a vertical direction with respect to the suspension means.
- the suspension means is designed to surround at least a part of the wheel axle allowing either as such or in combination with further means a restricted free translatory motion of the wheel axle a defined distance with respect to the suspension means.
- translatory one aims at that all the points at the wheel axle move the same distance by a motion of the wheel axle. This translatory motion may be combined with an angle motion of the wheel axle as well.
- With “free” motion one aims at a motion being independent of further parts of the construction.
- the suspension as such or with further means define a restricted motion area of the wheel axle.
- the suspension means includes a power beam above and partly surrounding the wheel axle and having end openings, inside said power beam the wheel axle is movable without load between two end positions in a vertical way. In such a way one or the other end of the wheel axle can be moved a defined distance under load. That the wheel axle can move without load means that there is some space where the wheel axle can move with respect to the suspension means if one imagines that all forces counteracting such a movement are eliminated. For instance, such a movement can be the fact if the whole wheel axle system was lifted such that the wheels "floated" in the air and displacement forces were allowed to act on the wheel axle in this situation.
- That the wheel axle can be moved a defined distance under load means that this movement can be the fact at the same time as forces are transferred from the suspension means to a base on which the wheels are running through the wheel axle.
- This movement under load is an angle motion of the wheel axle with respect to the suspension means having the centre of rotation situated at the one or other position of the force transmission between the suspension means and the wheel axle.
- the wheel axle has a free motion within the suspension means and with respect to the power beam if no loads exist.
- the advantages with such a "free movable" wheel axle are that the wheel axle is not connected with another suspension component at all. Furthermore such a wheel axle will be quite self-regulated for different types of load cases.
- said distance is restricted on one hand by the suspension means and on the other hand by claps connected to the suspension means.
- the suspension means restricts the movement of the wheel axle in the upward as well as in the forward and backward direction.
- the suspension means and the clap determine the boundaries for the maximum movement of the wheel axle.
- the device power transferring spacing means are arranged between the wheel axle and the suspension means. Such spacing means can be assembled on suspensions or on the wheel axle and are adapted to transfer forces as a result of the mass of the tool. In one embodiment of the device power transferring spacing means are arranged at the top side of the wheel axle within the power beam close to the two ends thereof.
- the power transferring spacing means are assembled on and around guiding means assembled to a part of the wheel axle at least, said guiding means are equipped with assembling surfaces for assembling of the spacing means.
- these guiding means are designed as rectangular blocks with upper, front and rear cooperation surfaces. These surfaces cooperate with the suspension means and especially in one embodiment they are cooperating with the inside of the power beam.
- said guiding means are equipped with a front length spacing mean and a rear length spacing mean. These length spacing means are an adaption of the position of the wheel axle with respect to the power beam.
- At least one of the length spacing means is equipped with one or more shims, that is thin inserts, for a more exact adjustment of the length position of the wheel axle with respect to the power beam. Shims may also be used to minimize the vertical move possibilities of the wheel axle.
- all the suspension surfaces are plain.
- This embodiment is preferable as the plain surfaces are simple to assemble and are a regulated distribution of the forces transferred.
- the invention does concern a rail going vehicle equipped with a device at least according to that indicated above.
- Fig. 1 shows an exploded view in perspective of a first embodiment of the invention.
- Fig. 2 shows a perspective of the first embodiment of the invention assembled.
- Fig. 3 shows a top view of the embodiment according to Fig. 2.
- Fig. 4 shows a front view of the embodiment according to Fig. 2.
- Fig. 5 shows an axial section view A-A according to Fig. 3.
- Fig. 6 shows a cross section view B-B according to Fig. 4.
- Fig. 7 shows an axial section view of a second embodiment according to the invention at a first load case.
- Fig. 8 shows the section view according to Fig. 7 at a second load case.
- Fig. 9 shows the section view according to Fig. 7 at a third load case.
- Fig. 1 shows an exploded view of a wheel axle system 10 including a device according to an embodiment within the scope of the present invention at a wheel axle, which device includes a fixed wheel axle 1 1 , at which a respective wheel 12, 13 is rotatable carried on the two axle ends.
- the wheel axle 1 1 is connected to a suspension means 14 directly or indirectly fixed to the framing of a tool in such a manner that the wheel axle 1 1 at one end at least is movable in a vertical direction with respect to the suspension means 14.
- the suspension means is designed to surround at least a part of the wheel axle 1 1 as a U-formed power beam 15 equipped with end openings 16. Within the power beam 15 the one end 17 and the other end 18 respectively of the wheel axle can be vertically moved a defined distance.
- the distance is restricted in the vertical direction upwards by power transmitting spacing means 19 at the top side of the wheel axle 1 1.
- the spacing means 19 are assembled to top surfaces 20 of rectangular guiding means 21 in turn assembled around the wheel axle 1 1 .
- the guiding means are equipped with length spacing means 221 , 222 being assembled to the front and rear surfaces of the guiding means for adjusting of the length position of the wheel axle in the suspension means 14.
- To obtain a further fine adjustment of the position one or more shims 223 being added to the length spacing means.
- the distance mentioned is also restricted in the vertical direction downwards by claps 23 connected to the end openings of the power beam 15, said claps being connected to the ends of the power beam by screw joints.
- the guiding means 21 are assembled around the wheel axle 1 1 at the two ends thereof.
- spacing means and length spacing means are assembled at said two ends.
- the two wheels 12, 13 are carried on the wheel axle through respective axle taps 24.
- Fig. 2 shows the wheel axle system 10 as assembled.
- the wheels 12, 13 are assembled on their axle taps 24 and the wheel axle is assembled on the suspension means 14 by the claps 23, connected to the suspension means 14 by screw joints 25.
- the suspension means is equipped with load reinforcements 26 shaped as disk beams being connected to a first assembling device 27 and a second assembling device 28 for the suspension means 14 attachment to a tool vehicle, not shown.
- Fig. 3 shows a top view of the embodiment according to Fig. 2 having the two wheels 12, 13 connected with the axle taps 24 of the wheel axle and the suspension means 14 of the device.
- Fig. 4 shows a front view of the embodiment according to Fig. 2 having the two wheels 12, 13 connected with the axle taps 24 of the wheel axle and the suspension means 14 of the device.
- the figure also shows an adjustment element 41 to stabilize the movements of the wheel axle 1 1 in the suspension means 14.
- Fig. 5 shows an axial section view A-A according to Fig. 3 having the wheels 12, 13 carried by respective axle taps 24 at the ends of the wheel axle 1 1 , in turn situated inside the suspension means 14.
- the wheel axle 1 1 bears against the inside of the suspension means 14 through the power transferring spacing means 19 at the top side of the wheel axle 1 1 .
- the wheel axle 1 1 and the spacing means 19 will be forced against the inside and the suspension means 14 as shown by the figure.
- the downward directed force F is symmetrically positioned against the suspension means the forces will be distributed onto the wheel axle 1 1 with F/2 through each one of the spacing means 19 according to the vertically directed arrows in the figure.
- the figure shows that in each one of the claps 23 there is a vertical play 51 , 52 allowing the respective end of the wheel axle 1 1 to be displaced in a vertical direction within the suspension means 14 if there is any uneven load of the suspension means 14.
- Fig. 6 shows a cross section view B-B according to Fig. 4 through the guiding means 21 being assembled around the wheel axle 1 1 .
- the wheel 13 is connected to the wheel axle 1 1 as described above.
- the spacing means 19 situated on one side and being plain and horizontally assembled on the guiding means 21 bears against the inside of the top side of the suspension means 14.
- the figure shows also the play between the wheel axle 1 1 and the inside of the clap 23.
- the length spacing means 221 , 222 are assembled in the length direction on the guiding means 21 . These length spacing means are plain and assembled against vertically directed plain sides of the guiding means 21 .
- An adaption of the length spacing means is made to adjust the position of the wheel axle in the length direction in the suspension means 14. Thereby the length spacing means 221 , 222 bear against the vertical inner sides 61 , 62 of the suspension means 14 according to the figure.
- Fig. 7 shows a first load case at a second embodiment of the invention with numeric references corresponding to those used in Fig. 5.
- the figure shows a corresponding axial section view having the wheels 12, 13 carried by respective axle taps 24 at the ends of the wheel axle 1 1 , in turn situated inside the suspension means 14.
- the wheel axle 1 1 bears against the inside of the suspension means 14 through the power transferring spacing means 19 at the top side of the wheel axle 1 1 . If the downwards directed force F is symmetrically positioned against the suspension means the forces will be distributed onto the wheel axle 1 1 with F/2 through each one of the spacing means 19 according to the vertically directed arrows in the figure in the same manner as shown by Fig. 5.
- the figure shows that in each one of the claps 23 there is a vertical play 51 , 52 allowing the respective end of the wheel axle 1 1 to be displaced in a vertical direction within the suspension means 14 if there is any uneven load of the suspension means 14.
- the base 71 being quite plain, is shown with a dash dotted line.
- the base in the figure represents a rail section where the two rails are quite horizontal with respect to each other, i.e. the load case is quite symmetric. Equal large force is transferred to the contact with the respective base for each one of the wheels 12, 13.
- a tool vehicle is equipped with a front wheel axle 1 1 and a rear wheel axle, said two wheel axles are in the load case shown situated at a quite horizontal rail section and all the four wheels are in contact with respective rail and the power is symmetrically transferred in dependence of the position of the centre of gravity of the tool vehicle.
- the left hand wheel 12 in the figure is in contact with the rail a certain part of the mass mi will be accumulated also by this wheel. The result will be that both sides are in contact with the base and the mass will be distributed to the two sides. I such a way one obtains a flexibility to the base though the unfavourable geometry at the same time as power is transferred through all the wheels being in contact with the base.
- Fig. 9 shows a third load case where a tool, e.g. a bucket, is working with a load far away from the position of the centre of gravity of the tool, i.e. at the right hand side in the figure, with a downward directed force, which may correspond to the upward directed force F2 acting on the suspension means 14 left side.
- a tool e.g. a bucket
- a downward directed force which may correspond to the upward directed force F2 acting on the suspension means 14 left side.
- the wheel axle 1 1 is movable within the area defined upwards by the suspension means 14 and downwards by the clap 23. If all the suspension means 14 was raised such that the two wheels 12, 13 missed the rail contact the wheel axle 1 1 would be hanging free in the two sides of the clap 23. In such a hypothetical raised position the wheel axle 1 1 would have a vertically free movement within said area and would be moved upwards in a translatory way until the two sides of the wheel axle are in contact with the suspension means 14. Of course within the scope of such a translatory motion the wheel axle 1 1 can carry out also angle movements within this area as is shown by Figs. 8 and 9.
- the invention also comprises other constructions of suspension means which as a whole defines the restricted area for the movements of the wheel axle.
- the suspension means can be designed as a tube with a cylindrical or rectangular cross section having an inside measure exceeding the outside measure of the wheel axle in such a way to define the restricted movement area for the wheel axle.
- the wheel axle is inserted from one end of the suspension means.
- Other constructions of the suspension means may be such that it is designed in an upper part and a lower part being put together around the wheel axle and thereby define the restricted movement area of the wheel axle.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1351184A SE538487C2 (en) | 2013-10-07 | 2013-10-07 | Device at a wheel axle and rail-mounted vehicle with such wheel axle |
PCT/SE2014/051067 WO2015053682A1 (en) | 2013-10-07 | 2014-09-16 | A device for a wheel axle and a track bounded vehicle with such a wheel axle |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3055181A1 true EP3055181A1 (en) | 2016-08-17 |
EP3055181A4 EP3055181A4 (en) | 2017-06-21 |
EP3055181B1 EP3055181B1 (en) | 2021-08-04 |
Family
ID=52813402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14852806.0A Active EP3055181B1 (en) | 2013-10-07 | 2014-09-16 | A device for a wheel axle and a track bounded vehicle with such a wheel axle |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3055181B1 (en) |
DK (1) | DK3055181T3 (en) |
SE (1) | SE538487C2 (en) |
WO (1) | WO2015053682A1 (en) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1588219A (en) * | 1925-06-20 | 1926-06-08 | Woodman Railway Supply Company | Railroad-car truck |
US2032697A (en) * | 1934-07-09 | 1936-03-03 | Ephraim P Golden | Auto trailer |
US2207848A (en) * | 1934-07-18 | 1940-07-16 | Symington Gould Corp | Railway truck |
US2798735A (en) * | 1955-01-17 | 1957-07-09 | Standard Steel Works Inc | Multi-spring undercarriage for vehicles |
DE1058853B (en) * | 1956-03-05 | 1959-06-04 | Vittorio Pogioli | Elastic suspension of the wheel axle of vehicles |
US3073620A (en) * | 1960-09-01 | 1963-01-15 | Lord Mfg Co | Spring suspension |
US3249067A (en) * | 1962-10-17 | 1966-05-03 | Kalamazoo Mfg Company | Convertible railway-highway vehicle |
DE1870692U (en) * | 1963-02-01 | 1963-04-18 | Vibrastop Gummimetall Verbindu | AXLE SPRING WITH ANTI-ROTATION. |
FR1391385A (en) * | 1963-09-03 | 1965-03-05 | Lord Mfg Co | Adapter for roller bearings, especially for railway cars |
DE2062797C3 (en) * | 1970-12-19 | 1978-10-12 | Thyssen Industrie Ag, 4300 Essen | Suspension for vehicles |
BE809588A (en) * | 1974-01-10 | 1974-05-02 | IMPROVEMENTS TO SUSPENSION DEVICES FOR SPRINGS ON AXLE BOXES FOR RAILWAY WAGONS AND SIMILAR APPLICATIONS. | |
US4438703A (en) * | 1982-02-12 | 1984-03-27 | The Budd Company | Primary suspension system for a railway car |
GB2180807A (en) * | 1985-05-24 | 1987-04-08 | Milan Dane Trbojevic | Railway car axle assembly with stationary axle |
GB2184409A (en) * | 1985-12-20 | 1987-06-24 | Krupp Gmbh | Railway crane |
AU7451191A (en) * | 1990-03-15 | 1991-10-10 | Utdc Inc. | Suspension system |
AT408333B (en) * | 1998-03-20 | 2001-10-25 | Daimler Chrysler Ag | VEHICLE WHEEL |
-
2013
- 2013-10-07 SE SE1351184A patent/SE538487C2/en unknown
-
2014
- 2014-09-16 EP EP14852806.0A patent/EP3055181B1/en active Active
- 2014-09-16 WO PCT/SE2014/051067 patent/WO2015053682A1/en active Application Filing
- 2014-09-16 DK DK14852806.0T patent/DK3055181T3/en active
Also Published As
Publication number | Publication date |
---|---|
SE1351184A1 (en) | 2015-04-08 |
EP3055181A4 (en) | 2017-06-21 |
SE538487C2 (en) | 2016-08-02 |
WO2015053682A1 (en) | 2015-04-16 |
DK3055181T3 (en) | 2021-09-06 |
EP3055181B1 (en) | 2021-08-04 |
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