AU672480B2 - Machine for the grinding of local portions of a railway rail, particularly of the welding of two neighbouring rails or other punctual defects - Google Patents
Machine for the grinding of local portions of a railway rail, particularly of the welding of two neighbouring rails or other punctual defects Download PDFInfo
- Publication number
- AU672480B2 AU672480B2 AU59279/94A AU5927994A AU672480B2 AU 672480 B2 AU672480 B2 AU 672480B2 AU 59279/94 A AU59279/94 A AU 59279/94A AU 5927994 A AU5927994 A AU 5927994A AU 672480 B2 AU672480 B2 AU 672480B2
- Authority
- AU
- Australia
- Prior art keywords
- grinding
- carriage
- vehicle
- machine
- rail
- 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.)
- Ceased
Links
- 238000003466 welding Methods 0.000 title description 7
- 230000007547 defect Effects 0.000 title description 5
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000920340 Pion Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000063 preceeding effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/14—Way of locomotion or support
- E01B2203/148—Way of locomotion or support having wheelsets that can be displaced horizontally or vertically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Description
I'tu'f 1 ~jf floquiaIiton 3 2(2)
AUSTRALIA
Patents Act 1990
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT Application Number: 59279/94 Lodged: 5 APRIL 1994 0 S S
S.
*550 0 S
S
*5 0 S S
S
Invention Title: MACHINE FOR THE GRINDING OF LOCAL PORTIONS OF A RAILWAY RAIL, PARTICULARLY OF THE WELDING OF TWO NEIGHBOURING RAILS OR OTHER PUNCTUAL DEFECTS The following statement is a full description of this invention, including the best method of performing it known to us I* 1 MACHINE FOR THE GRINDING OF LOCAL PORTIONS OF A RAILWAY RAIL. PARTICULARLY OF THE WELDING OF TWO NEIGHBOURING RAILS OR OTHER PUNCTUAL DEFECTS.
It is necessary, besides the periodical maintenance operation made by reprofiling the rail tracks, to proceed with punctual maintenance operations on some portions of limited lengths, generally very short, such as the welding of rail abutments, levelcrossings, or switchings. In fact, during the welding of rail abutments, welding burrs are produced and it is necessary to eliminate them. On the other hand certain points or areas of the rails of the track, welded or not, are deformed by the traffic and have to be specially reprofiled.
One knows from the German utility models GM 7710195 and 7710735, from the French Patent 1.479.320 and from the British Patent 817.825, small grinding machines, so-called manual machines. These small machines are manually dise. paceable along the track or displaceable with a motorized engine and can be stopped, fastened to the rail on either side of the joint to be ground. The back and forth movement of the grinding head, generally manually controlled, parallelly to the axis of the rail permits to eliminate the defect progressively, particulary the welding burrs. A pivoting of the grinding device around an axis parallel to the one of the rail enables to grind the whole surface of the head of this rail.
0 These grinding machines or grinding devices are light.
a not powerful and therefore work slowly. Furthermore, the 2 quality of the work depends greatly on the ability of the operator actuating the machine manually.
One can also use conventional reprofiling machines formed by automotive vehicules associated to groups of grinding units permitting to treat the whole surface of the head of the rail. These machines are generally reserved for the continuous reprofiling of the rail on its whole length. They can however exceptionally be used for the grinding of a joint or of an isolated area of small length of a rail, their power which is generally high permis to noticeably reduce the grinding time of a joint.
These conventional machines for example of the type of the ones described in the patents CH 680.597, CH 680.672 and CH 68 598 however present two major drawbacks for the 0000 grinding of joints or punctual defects of a rail.
.o On one hand, due to their construction these machine.3 o 0o0 are very long, about six to ten meters long depending on the types, and heavy, between 15 and 25 tons. To carry out the operation of the grinding of a joint, the machine has 00 to be displaced entirely from one side to the other of the joint, several times successively. It is therefore necessary to accelerate and brake a very sizeable mass successively at small intervals of time. The machine must also 0000 be displaced a very great distance depending on the area oo 0 to be ground. This causes time loss and a waste of energy.
0 oo On the other hand, the load on each wheel axle of these machines is very heavy and causes a deformation of the rail at the place where the wheel rolls on the rail (see Die Eisenbahnschiene, Wilhelm Ernst und Soh., Berlin, p. 25), and thus near the area to be ground which renders
L~
a' o 3 the grinding operation more delicate and less precise. The result obtained by means of such big machines for the grinding of joints is thus not efficient with respect to time and energy dispensed.
A supplementary drawback resides in the fact that the operator is submitted to the acceleration forces of the back and forth movement of the machine which when repeated is very unpleasant. It can be noted that this drawback for the personnel, which was also present in the traditional stamping machines of the ballast of the track, has lead to the conception of new ballastcompacting machines.
The grinding machine according to the invention has the aim to enable the grinding of joints or of areas of the rails of small lengths in an economical and rapid man- S ner with precision and exactitude and without inconveniances for the person driving the machine.
The grinding machine according to the present invention tends to obviate from the precited drawbacks of the existing machines, large or small, and distinguishes itself by the characteristics given in claim 1. The present machine for the grinding of localized sections of a railroad track, particularly the welding of rail abutments or other punctual defects comprises an automotive vehicule and at least one grinding carriage, this machine is 3.
characterized by the fact that during the grinding operation of the rail, the automotive vehicule is standing still, immobile with respect to the railroad track whereas 9 the grinding carriage makes back and forth displacements S along this track; the distance between the said carriage a 4 and the vehicule being therefore variable.
The attached drawing shows schematically and by way of example two embodiments of the grinding machine according to the invention as well as at a greater scale, the grinding carriage of these machines.
Figure 1 is front view of a first embodiment of the grinding machine according to the invention in position to be displaced from one worksite to another.
Figure 2 shows the machine represented in figure 1 in working position, i.e. during the grinding of a punctual area of the rail.
Figure 3 shows the machine represented in figures 1 and 2 in position for displacement along the railway track for a short distance.
Figure 4 is a view, at a larger scale, in elevation of :0 a grinding carriage of a machine.
0. Figure 5, in its left side, represents a cross-section along line A-A of Figure 4 and in its right side an elevas ee tion of a grinding carriage.
Figures 6 and 7 show, in front view, a second embodiment of the grinding machine according to the invention, in positions corresponding to the ones shown in figure 1, respectively 3.
With reference to figures 1 to 5 the first embodiment of the grinding machine, particularly for grinding end joints of rails, or other localized defects of a railroad track, is a so called rail and road machine, that means, a machine able to be displaced either along a railroad track or along a road.
5 This grinding machine comprises on the one hand an automotive vehicule and which produces energy, particularly electrical energy, and on the other hand, at least one grinding carriage 2.
The automotive rail and road vehicle 1 comprises a frame 3 mounted on front wheels 4 and rear wheels 5 and driven by a conventional diesel engine. This vehicle 1 comprises a driving cabine 6 in which all the control members of the vehicule are grouped.
This vehicle comprises further bogies 7 retractable by means of hydraulic jacks 8,9 provided with wheels permitting in service position (figure 2) to rest on the rails of a railroad track and to lift the roadwheels The necessary hydraulic energy for activating the hydraulic jacks 8,9 is provided by a hydraulic generating unit 10 fed by a diesel engine 11 mounted onto the chassis 3. This diesel engine 11 also drives an electrical S generator 12 which, as will be seen later on, feeds elec- Stricity to the grinding units of the grinding carriage 2 S by intermediate means of a flexible electric cable 13.
The automative vehicle is further provided with a control cabine 14 controlling the grinding operations regrouping all the controls of the grinding units and of the grinding carriage itself.
The grinding carriage 2, shown in detail in figures 4 and 5 comprises a frame provided with rollers 15 intended to cooperate with the rails 16. The frame carries in a conventional manner the grinding units, which are angular- S ly displaceable around an axis which is parallel to the one of the rail 16 by means of jacks or electrical motors 6 17. Each grinding unit comprises an electrical motor 18 driving a lapidary grinding wheel 19. In the example shown the grinding carriage 2 comprises four grinding units 18,19 mounted in pairs in cradles 20 articulated on the frame. The capacity of metal removing of the grinding units is determined by the resting force of the grinding wheels 19 onto the rail and by their rotation speed.
The grinding carriage is surrounded by protections 21 carried by the casing 22 of a filter 23 connected to a blower 24 sucking in the grinding dust driven by the electrical motor The grinding carriage comprises a self propulsion device formed here for example by an electrical motor 21 driving the rollers 15 through a chain linkage 27.
,0*0 *The grinding carriage is further provided with a teleee scopic and foldable arm 28 carrying at its extremity an electrical connector 29 feeding the different electrical motors 18,25,26 with energy when this connector is connected to the end of an electrical cable 13. The end of the arm 28 is used for anchoring a cable 30 supporting the 0.S." electrical cable 13. This cable 30 passes over a pully 31 with a winding system 32 carried by the automotive vehicle *:00 1.
The grinding carriage 2 comprises finally the lifting shafts 33 intended to cooperate with hooks 34 at the end 0:00 of arms 35 pivoting on the chassis of the automotive vehicle under the action of lifting jacks 36. Thus, thanks Ss to this lifting device, the carriage 2 can be carried by 0.0 0 o the automotive vehicle (figure 1) for its displacements S from one worksite to another. In this position, carried by 7 the veh,..e, the telescopic arm 28 of the carriage is shortened and folded and the electrical feeding cable 13 is disconnected. The supporting cable is unhooked from the post 28.
When the railroad automotive vehicle approaches a joint to be gr xnd on a railroad track, the vehicle is aligned onto the track and the bogies 6,7 are ]:wered, cooperating with the rails and lifting the road wheels The carriage 2 is lowered and posed onto the rails.
The post 28 is lifted, connected to the cable 30 and the electrical cable 13 is linked up to the connector 29.
The grinding machine is in working position (figure The heavy automotive vehicle is standing still on the railway track. The light carriage 2, connected only by cables 30 and 13 to vehicle 1, is driven by reciprocal movements from one side to the other of the joint to be ground by the motor 26 and the chain linkage 27. The reduced mass and the short length of the grinding carriage 2 permits short and rapid reciprocal movements. The weight of the carriage being very small, the deformation of the rail where it is in contact with the rollers is thus very slight and therefore improves the grinding precision.
6000 The main characteristic of this grinding machine, which enables to solve the actual problem and realizes the fee: aims and advantages proposed, is that in working position, tile grinding carriage displaces itself independantly along 0 the railway track during its reciprocal displacements, the automotive vehicle remaining immobile and serving ornly to 8 feed the energy to members of the carriage and to insure the controlling from the control cabine 14.
Other advantages ensuing from this configuration, the main ones fo. example being a better location in curves, the length of the grinding carriage being small.
the control of the area to be ground is easy, either from the control cabine 14, or visually by deplacement alongside the grinding carriage.
the operator's comfort is improved, they can either remain in the standing automotive vehicle and remote control the grinding, or step down from the machine and visually control the grinding. In all cases, the operators Sare not submitted to successive multiple accelerations and breaking.
When short distances have to be crossed between two joints to be ground, the grinding carriage 2 can remain on the track and be mecanically coupled by means of a bar 37 S. to the automotive vehicule which thus can pull the carriage along the railway track.
o.
The second embodiment of the grinding machine s own in figures 6 and 7 differentiates itself from the first one already described only due to the fact that the automotive *0o° vehicle is uniquely a railroad vehicle. The road wheels 4,5 are therefore suppressed. Moreover, the controls of e e° the grinding carriage 2 are grouped in the control cabine of the railway vehicle. Finally, in this embodiment, the 9. automotive railroad vehicle only comprises one diesel 064aa engine for moving it as well as for driving the hydraulic 9 9 generating unit and the electric generator feeding the motors of the grinding carriage 2.
In variants, one can imagine the automotive vehicle with several grinding carriages 2, particularly one behind as disclosed and shown in the preceeding descr pion and the other carriage in the front of the vehicle.
0 *o 0 e o* *0 0* e o 8
*C
*C
Claims (4)
1. A machine for the grinding of localised sections of a rail including an automotive vehicle and at least one grinding carriage; said machine adapted such that during the grinding operation of the rail the automo've vehicle is immobile with respect to the railway track whilst the grinding carriage makes reciprocal displacements along the railway track; the distance between the grinding carriage and the vehicle thus being variable; said grinding carriage including at least one grinding unit constituted by a motor driving a lapidary grinding wheel, and a driving device for driving the carriage in said reciprocal displacements along the railway track.
2. The machine according to claim 1 adapted such that whilst in a grinding service position the carriage is connected to the vehicle by an electrical cable feeding the carriage with electrical energy.
3. The machine according to claim 1 or 2, further including a lifting device 0 for the grinding carriage for loading the grinding carriage onto the vehicle. 0
4. The machine according to any one of the preceding claims, wherein the control of the grinding operations is made from the automotive vehicle. DATED this 31st day of July, 1996. SPENO INTERNATIONAL SA WATERMARK PATENT TRADEMARK ATTORNEYS LEVEL 4, AMORY GARDENS 2 CAVILL AVENUE ASHFIELD NSW 2131 AUSTRALIA LJD:RJD:GL DOC008 AU5927994.WPC ABSTRACT OF THE DISCLOSURE The machine comprises an automotive vehicle and at least one grinding carriage During the grinding operation of the rail, the automotive vehicle is standing still, immobile with respect to the railroad track, whereas the grinding carriage displaces itself reciprocally along the track. The distance between the said carraige and the vehicle is thus variable. (Fig. 1) 4 e 0 *0 e S*. **9 e
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002120288A CA2120288A1 (en) | 1994-03-30 | 1994-03-30 | Machine for grinding selected sections of railroad tracks, especially butt-end welds and other point defects |
| EP94105035A EP0675227A1 (en) | 1994-03-30 | 1994-03-30 | Grinding machine for localised sections of railway rail, more specifically for end-to-end weldings or other local defects |
| ZA942311A ZA942311B (en) | 1994-03-30 | 1994-03-31 | Machine for the grinding of local portions of a railway rail particularly of the welding of two neighbouring rails or other punctual defects |
| AU59279/94A AU672480B2 (en) | 1994-04-05 | 1994-04-05 | Machine for the grinding of local portions of a railway rail, particularly of the welding of two neighbouring rails or other punctual defects |
| US08/434,683 US5525098A (en) | 1994-03-30 | 1995-05-04 | Machine for molding localized sections of a railroad rail, particularly for welding ends of rails or other local defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU59279/94A AU672480B2 (en) | 1994-04-05 | 1994-04-05 | Machine for the grinding of local portions of a railway rail, particularly of the welding of two neighbouring rails or other punctual defects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5927994A AU5927994A (en) | 1995-10-19 |
| AU672480B2 true AU672480B2 (en) | 1996-10-03 |
Family
ID=3744454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU59279/94A Ceased AU672480B2 (en) | 1994-03-30 | 1994-04-05 | Machine for the grinding of local portions of a railway rail, particularly of the welding of two neighbouring rails or other punctual defects |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU672480B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005268A (en) * | 2019-12-16 | 2020-04-14 | 苏州大方特种车股份有限公司 | Railroad rail grinding car |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU440882B2 (en) * | 1969-07-30 | Frank Speno Railroad Ballast Cleaning Co. Inc | Rail grinder | |
| EP0283286A2 (en) * | 1987-03-20 | 1988-09-21 | Anderson Group Plc | Apparatus for removing a surface layer from the ground |
-
1994
- 1994-04-05 AU AU59279/94A patent/AU672480B2/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU295046B2 (en) * | 1965-10-14 | 1968-04-04 | Frank Speno Railroad Ballast Cleaning Company Inc | Rail grinder |
| AU440882B2 (en) * | 1969-07-30 | Frank Speno Railroad Ballast Cleaning Co. Inc | Rail grinder | |
| EP0283286A2 (en) * | 1987-03-20 | 1988-09-21 | Anderson Group Plc | Apparatus for removing a surface layer from the ground |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5927994A (en) | 1995-10-19 |
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