EP0298049B1 - Ridging device for earthing up the ballast of a railway by vibro-compression - Google Patents
Ridging device for earthing up the ballast of a railway by vibro-compression Download PDFInfo
- Publication number
- EP0298049B1 EP0298049B1 EP88830272A EP88830272A EP0298049B1 EP 0298049 B1 EP0298049 B1 EP 0298049B1 EP 88830272 A EP88830272 A EP 88830272A EP 88830272 A EP88830272 A EP 88830272A EP 0298049 B1 EP0298049 B1 EP 0298049B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oleodynamic
- motor
- rail
- hammers
- ridging device
- 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.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
- E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
- E01B27/13—Packing sleepers, with or without concurrent work on the track
- E01B27/16—Sleeper-tamping machines
Definitions
- From US-A-3022744 is also known to provide a ridging device which may be quickly mounted upon or removed from the rails of a railway track as an assembled unit.
- This device may be connected to the judgeated arm of a so called railway loader, i.e. a small motor crane mounted on a railway car and provided at the same time with tyres.
- the known devices are supported on four wheels rotatable on both rails of a railway track and require specific members or mechanisms for keeping the device in position on the rails.
- these known arrangements do not permit either an easy and rapid adjustment of the distance between the ridging implements relative to the rails, nor any oscillations of the same around a rail, because their position is limited by lateral guides, as are the wheels.
- the ridging device according to the invention has a small size and a relatively low weight because it is not provided with wheels or other mechanisms for keeping the device in position on a rail. Furthermore, it has an improved efficiency, because it can oscillate a certain amount around the rail and can be readily operated on the ballast at the different distances from the rail.
- Platform 3 has a further elongated slot 28 suitably provided for a belt.
- an oleodynamic motor 29 (Fig. 3) is provided, on the shaft of which a pulley 30 (schematically shown in Fig. 1) is mounted.
- a belt 31 surrounded by a protection member 32 is provided between pulley 30 and pulley 16 integral with flywheel carrier shaft 15.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Optical Integrated Circuits (AREA)
- Optical Couplings Of Light Guides (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
- This invention relates to a ridging device for earthing up the ballast of a railway by vibro-compression, such a device being of the type comprising implement assemblies called hammers connected in opposed couples.
- As known, earthing up is the treatment of the ballast, which is restricted to the bearing area of the track near the rails, in order to provide an even ground. This treatment is performed so as to restore the consistency of the rail supports, thus re-establishing an uniform support as far as the vertical rigidity is concerned both by filling the gaps under the sinking supports and by crushing the excessively rigid stones.
The earthing up is carried out at present by a car moving on the track and comprising the ridging devices, as is disclosed, for instance, in DE-B-1077687. The hammers of such devices are dipped into the ballast so as to bestride the sleepers up to a depth of 20 cm under the lower plane of the same and are vibrated at a frequency of some tens of cycles per second, thus causing the crushed stones to be rearranged. The hammers are then drawn near each other by a horizontal motion of translation so as to provide the earthing up of the supports by a combined action of compression and vibration. The vibration of the hammers is driven by the motor car, while the dip is driven by a pneumatic system; the approaching of the hammers is generally provided by the rotation of a worm screw or by a similar kinematic motion provided by an oleodynamic drive. The ridging devices of the above mentioned type are at present installed on very powerful machines. Such machines are able to provide high efficiency to comply with the modern techniques of maintenance, thus tending to associate in the same assembly several operative steps, i.e. besides earthing up also the systematic correction of the level and the alignement of the rails. - From US-A-3022744 is also known to provide a ridging device which may be quickly mounted upon or removed from the rails of a railway track as an assembled unit. This device may be connected to the articolated arm of a so called railway loader, i.e. a small motor crane mounted on a railway car and provided at the same time with tyres. The known devices are supported on four wheels rotatable on both rails of a railway track and require specific members or mechanisms for keeping the device in position on the rails. Furthermore, these known arrangements do not permit either an easy and rapid adjustment of the distance between the ridging implements relative to the rails, nor any oscillations of the same around a rail, because their position is limited by lateral guides, as are the wheels. The main object of the invention is to provide a ridging device adapted to be mounted at the adjustable jib of a motor crane, which can be used individually on a single rail or in pairs on both rails of a railway track and is simple in construction, easy to mount and efficient in operation.
This object is achieved by the ridging device, as defined, in general, in the appendedclaim 1 and, in specific embodiments, in the dependent claims. - The advantages of the invention are self evident. The ridging device according to the invention acts as a common implement such as a bucket or boring machine or the like, which is operatively connected to a loader. From the above it results that the loader can be used to perform other functions when the earthing up has not to be carried out. The use of the ridging device according to the invention does not involve the use of a specific earthing up machine. This is particularly useful when short lengths of ballast have to be earthed up, for example where points are provided. Furthermore, the ridging device of the invention is convenient when the user is the owner or responsible for the maintenance of a short railway, for example within a factory or a yard or a big store; in this case, in fact, purchasing a ridging machine of great productivity would provide a considerable locking up of capital in comparison with a very restricted employment. Even if it is a light device and its cost is lower than an equivalent device mounted on a specific ridging machine and although the modalities of use are varying, the effectiveness of the earthing up is essentially the same and the efficiency given in meters per hour of railway track subjected to treatment is near that of specific ridging machines.
The ridging device according to the invention has a small size and a relatively low weight because it is not provided with wheels or other mechanisms for keeping the device in position on a rail. Furthermore, it has an improved efficiency, because it can oscillate a certain amount around the rail and can be readily operated on the ballast at the different distances from the rail. - These and other features and advantages of the invention will be more readily apparent from the following detailled description of a preferred non-limitative embodiment with reference to the annexed drawing, wherein:
- Fig. 1 is a side elevation, partially schematic view of the ridging device according to the invention, the cover being axially sectioned for the sake of clearness;
- Fig. 2 is an elevation front view of the ridging device with the partially removed cover;
- Fig. 3 is a top plan view of the ridging device, the cover being partially removed;
- Fig. 4 is a longitudinal section along the line A-A of Fig. 2;
- Fig. 5 is a cross section along the line B-B of Fig. 1;
- Fig. 6 is a schematic perspective view showing the ridging device of the invention carried in use by the adjustable jib of a loader;
- Fig. 7 is a schematic elevation view showing another application of the ridging device of this invention.
- With reference to the drawing, and in particular to Figs. 1 to 5, it is generally designated by 1 and implement carrier frame, by 2, 2a the vibro-compression implement assemblies, by 3 a platform connecting the ridging device to the loader, by 4 a member supported by the rail and by 5 a cover.
Implement carrier frame 1 is more clearly shown in Figs. 1, 4 and 5. It can be formed by a metal casting having a rectangular form with twoside frames cross members - At both opposed ends of
cross members hammer carrier arms compression implement assemblies hinge pins assemblies Hammer carrier arms 7a, 7b ofassembly 2 mounted one facing the other abouthinge pins upper ends respective forks 12a, 12b ofcasing 10 and of piston rod 11 of anoleodynamic cylinder 9.Implement assembly 2a ofhydraulic cylinder 9a has the same arrangement. - Hammers 14a, 14b having enlarged ends in the form of trapezoidal shovels are tightened by bolts at the free ends in the form of
coupling sleeves hammer carrier arm 7a, 7b at the opposite sides ofpins hinge pins Hammer carrier arms 7a, 7b ofimplement assembly 2 are connected besides tooleodynamic drive cylinder 9 also to each other in a known manner by a force distributing rod 14c acting when the hammers are moved to be opened and closed. The hammers are shown in Figs. 1 and 4 with full lines in opened position and with dashed lines in closed position. -
Oleodynamic cylinders implement assemblies pulley 16 is mounted freely rotating aboutside frames carrier frame 1 in a central position parallel tocross members flywheels end flywheels flywheel 17a. The rotation of shaft 15 operated by a pulley and a belt drive described later on confers through the flywheels with eccentric body the vibration to the implement carrier frame and then to the respective implements. -
Implement carrier frame 1 is connected toplatform 3 by cylindrical vibration damping members ofrubber - Each vibration damper can be formed, as known, of a pair of
elastic bodies screwed rods outer rods 21a and 21c being provided with head. - The elastic bodies are delimited by
metallic discs 22a, 22b, 22c, 22d and by anouter locking U-member 23. A bracket (24a and 24b in Fig.1) connected, for example by welding, to the outstanding end of the side frames is diametrally mounted in each support between the elastic bodies about the centralscrewed rod 21b. -
Platform 3 is formed of a metallic plate of suitable thickness and of rectangular form withtrapezoidal slots longitudinal rib plate 3, while a hollow prismaticengaging member 26 is centrally outstanding.Prismatic member 26 has an inner square cross section and is devoid of upper base; it has coaxial throughholes platform 3. -
Platform 3 has a furtherelongated slot 28 suitably provided for a belt. Next to this slot an oleodynamic motor 29 (Fig. 3) is provided, on the shaft of which a pulley 30 (schematically shown in Fig. 1) is mounted. Abelt 31 surrounded by aprotection member 32 is provided betweenpulley 30 andpulley 16 integral with flywheel carrier shaft 15. - Both
cylinders oleodynamic motor 29 are supplied through hoses by the oleodynamic power source of the loader and by a distributor not shown, which are located on the loader 44 (Fig. 6). The hoses extend from the distributor to the users, i.e. cylinders and motor, located in the device through avalve assembly 33 connected at the periphery ofplatform 3. In Fig. 4 these further connection are not shown. In theschematic valve assembly 33 the upper fittings relate to the cylinders, while the lower ones relate to the oleodynamic motor.Platform 3 is perpendicularly elongated downwards both at the front and the back sides (Figs. 2, 4) withplate portions counterplates 35a, 35b andbolts 36. Supportingmember 4 has a reversed U cross section which is lined with agasket 38 if that is the case. The inner cavity of the U-section is adapted to receive the head of a rail together with other connecting parts between rails. - Furthermore the distance between the
bottom 37a and theends member 4 has at the upper side in an essentially central position twospacers platform 3 and having a lower height than the distance between supporting member and platform 3 (Figs. 1, 5), the function of which is that of limiting the elastic deflection of supportingmember 4. -
Cover 5, preferably of metal sheet, is provided on the connecting plate.Cover 5 has asquare opening 40 corresponding to the cavity ofprismatic member 26 and next to the latter alongitudinal slot 41 for alatch 42 which can be operated from the outside of the cover by alever 43 integral with said latch. - In operation, as shown in Fig. 6, the ridging device of the invention is operatively connected to the adjustable jib of the
loader 44. The bored head of the latter is introduced with male-female coupling into the hollow and boredprismatic member 26, whilelatch 42 is introduced through the coaxial holes and suitably locked. - The oleodynamic connection with the hoses are established.
Loader 44 located with its car on the rail lifts the ridging device and approaches it to the rail so as to bestride the sleeper. The vibration motion given to the implement carrier frame causes the ridging device to be dipped into the stones until bottom 37a of the supporting member comes in touch with the upper surface of the rail. The lower ends 37b, 37b of the supporting member do not come in touch with other parts of the railway superstructure in order not to cause any damage. Under this condition the hammers are driven to perform their function of compressing stones. After the earthing up of the crushed stones under that sleeper,loader 44 is advanced to the next sleeper in order to repeat the working cycle. - In Fig. 7 there is shown an example of using a pair of ridging devices connected by a
cross member 45 allowing the simultaneous ridging operation on both rails under the same sleeper. - In such a case, the engagement of the cross member of both ridging devices to the adjustable jib of the loader is effected at the central position of the schematic connecting
member 46.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88830272T ATE75793T1 (en) | 1987-07-01 | 1988-06-27 | ARRANGEMENT DEVICE FOR TAMPING THE BEDDING OF A TRACK BY VIBRATION COMPACTION. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT3588487U | 1987-07-01 | ||
IT8735884U IT213739Z2 (en) | 1987-07-01 | 1987-07-01 | LIGHT TAPER GROUP FOR SOLID RAILWAY SETTLING |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0298049A1 EP0298049A1 (en) | 1989-01-04 |
EP0298049B1 true EP0298049B1 (en) | 1992-05-06 |
Family
ID=11243583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88830272A Expired - Lifetime EP0298049B1 (en) | 1987-07-01 | 1988-06-27 | Ridging device for earthing up the ballast of a railway by vibro-compression |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0298049B1 (en) |
AT (1) | ATE75793T1 (en) |
DE (1) | DE3870728D1 (en) |
IT (1) | IT213739Z2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2666357B1 (en) * | 1990-08-30 | 1992-11-13 | Geismar Anc Ets L | BALLAST STUFFING UNIT OF A RAILWAY, OF THE FORCED VIBRATION TYPE. |
FR2820764B1 (en) * | 2001-02-14 | 2004-06-18 | Anciens Ets Lucien Geismar Soc | MOUNTING / DESCENT MECHANISM FOR BALLAST DUMP UNIT |
ITVE20120003U1 (en) * | 2012-01-10 | 2013-07-11 | Railmec Srl | PERFECT MILLING UNIT FOR MASSIVE RAILWAY. |
CN108907669A (en) * | 2018-08-15 | 2018-11-30 | 淮南国力液压装备有限公司 | A kind of solid tyre charging crane |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE297721C (en) * | ||||
US2899909A (en) * | 1959-08-18 | Ballast tamping machine | ||
US3022744A (en) * | 1957-01-23 | 1962-02-27 | Jackson Vibrators | Tie tamping or ballasting machine |
DE1077687B (en) * | 1958-05-21 | 1960-03-17 | Bauunternehmung E Heitkamp G M | Two-axis track tamping machine that can be moved on the track |
DE1241474B (en) * | 1964-11-07 | 1967-06-01 | Wacker Hermann | Hand-operated device for tamping under rail sleepers |
-
1987
- 1987-07-01 IT IT8735884U patent/IT213739Z2/en active
-
1988
- 1988-06-27 AT AT88830272T patent/ATE75793T1/en not_active IP Right Cessation
- 1988-06-27 DE DE88830272T patent/DE3870728D1/en not_active Expired - Fee Related
- 1988-06-27 EP EP88830272A patent/EP0298049B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3870728D1 (en) | 1992-06-11 |
IT213739Z2 (en) | 1990-01-22 |
ATE75793T1 (en) | 1992-05-15 |
IT8735884V0 (en) | 1987-07-01 |
EP0298049A1 (en) | 1989-01-04 |
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