US3918215A - Carriage for grinding undulations in railway track rails - Google Patents

Carriage for grinding undulations in railway track rails Download PDF

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Publication number
US3918215A
US3918215A US386456A US38645673A US3918215A US 3918215 A US3918215 A US 3918215A US 386456 A US386456 A US 386456A US 38645673 A US38645673 A US 38645673A US 3918215 A US3918215 A US 3918215A
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Prior art keywords
grinding
carriage
assembly
rail
units
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Expired - Lifetime
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US386456A
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English (en)
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Fredy Scheuchzer
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    • 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

Definitions

  • a railway carriage with rail grinding apparatus for grinding undulating track rails which comprises the combination of a support linked to the carriage main body so as to be displaced together with the main body along the track, and for each set of rails to be ground, a rigid assembly of at least three grinding units, each unit comprising a grinding wheel fixed on a shaft, a motor for rotation of the shaft and a shaft bearing, means for relieving loads positioned between said support and the rigid assembly on which they act, complementary links between said assembly and said support designed with a view to enable the assembly to execute slight movements which are imparted to it by the passage of the grinding wheels over the bumps in the undulations of the rail, and means dimensioned so as to prevent the penetration by any grinding wheel into a trough of the undulation over which the grinding wheel is crossing.
  • the present invention relates to railway carriages with rail grinding apparatus for grinding crests of undulations in track rails. i l
  • Rail grinding trains for railway tracks comprising vehicles equipped with grinding units each made up of motorized rotary grinding wheels which are inclinable with respect to the track, their effective bearing weight on the rail being individually counterbalanced and 'controllable by a hydraulicjack, while each unit is carried by a rigid structure in which the unit can pivot, have been known for many years and are described, in particular, in US. Pat. No. 2,197,729 of 1938. V
  • the grindingwheels of the present invention attempt to trim the contour by effectively abrading the crests of the waves without penetrating into their troughs.
  • the carriage cooperating with the rail grinding apparatus may be incorporated in a grinding train such as, for'example, the one described in Swiss patent applications Nos. 004247/70 and 6244/70 by the same author.
  • This grinding carriage located above each set of rails and provided with motorized grinding wheels and means for relieving loads of said grinding wheels on the rails, is characterised in that it comprises a support linked to the carriage main body so as to be displaced together with the main body along the track, at least one rail grinding apparatus for each set of rails to be ground comprising a rigid assembly of at least three grinding units, each comprising a grinding wheel fixed on a shaft, a motor for rotation of the shaft, and a shaft bearing, weight relieving means operatively connected to said apparatus for relieving loads being positioned between said support and the rigid assembly, complementary links mounted on said carriage between said assembly and said support to enable the assembly to execute slight movements which are imparted to it by the passage of the grinding wheels over the crests in the undulations of the rail, and dimensional means, defined herebelow, so as to prevent the penetration by any grinding wheel into a trough of the undulation over which the grinding wheel is crossing.
  • the support may be constituted by either a part of the carriage directly, or by a chariot rolling on the track and itself linked to the carriage in order to take part in its displacement along the track while still being able to experience slight transverse displacements relative to this carriage.
  • the weight relieving elements are, for example, jacks; These may be pneumatic or hydraulic. Contrary to present known equipment , a jack does not belong to one grinding unit but to an assembly consisting of a number of units. i
  • the rigidity of the assembly which comprises at least three grinding.wheels, that the latter pass over a trough in turn without penetrating into it.
  • FIG. 1 illustrates a-longitudinal partial view of. the carriage with rail grinding apparatus constituted by 'four grinding units;
  • FIG. 2 is a plan view of the apparatus of FIG. l.
  • the apparatus comprises four grinding wheels 2, 3, 4 and 5, on spindles 2', 3', 4'and S, in bearings. at 6, 7, 8 and 9.
  • the bearing 6 has been shown in section so that rolling bearings 10 and 10' thereof are visible.
  • the grinding wheels 2, 3, 4 and 5 are illustrated in contact with a rail 1.
  • a grinding unit is constituted by a grinding wheel, its spindle together with its bearing, and its motor.
  • the casings of these bearings have lugs, more particularly at ll, l1, l2, l2, and 13, 13, which facilitate the rigid assembly thereof by means of the side-plates 18.
  • the end casings are connected by lugs and sideplates, to the brackets 15 and 15 which rest, via the articulations l6 and 16', on the ends of the pistons 0f the jacks l7 and 17' which jacks are supported on the frame of the wagon, this frame being the support of the assembly whereas the casings, lugs and side-plates form the rigid structure.
  • cores in broken lines can be seen inside the lugs; these cores make it possible for two grinding units to move away from one another and, therefore, for the length L between the axes of the end grinding wheels to be increased.
  • each grinding unit may have its own particular inclination (in a transverse plane); the side-plates 18 in fact make it possible, with the aid of elongated holes for their bolts, to impart the desired inclination to each unit.
  • the units are raised. This may be brought about by connecting the jacks to a high-pressure pipe-system, but this elevation can also be carried out by mechanical means, for example tensioned springs which can be abruptly released by a manually controlled or remote-controlled triggering operation.
  • The, preferably spherical, articulated connections (such as 16 and 16 in the example) between the frames and the assembly via jacks, are noteworthy in that they transmit vibrations from the vehicle to the assembly only via the fluid in the jacks, which fact damps the said vibrations.
  • Supplementary articulated connections may limit, facilitate or prohibit certain movements, or else guide them.
  • One, less advantageous, form of manufacture would comprise articulated connections provided with elastic or sliding elements.
  • the jacks have the function of unballasting the weight of the assembly; pneumatic jacks are more flexible than hydraulic jacks, but there is nothing to prevent the connection of a hydraulic jack, generally of the oil type, to a compressed-air reservoir, thus combining the respective properties of the two types of fluid.
  • a carriage for grinding undulations in railway track rails said carriage being provided with a plurality of motorized rotary grinding wheels and means for relieving the loads of said grinding wheels on the rails, comprising a support linked to the carriage main body so as to be displaced together with the main body along the railway track; a rail grinding apparatus comprising a rigid assembly of at least three grinding units, each comprising a grinding wheel fixed on a shaft, a motor for rotation of the shaft, and a shaft bearing; a weight relieving means comprising a plurality of jacks operatively connected to said apparatus for relieving loads being positioned between said support and the rigid assembly; and complementary links mounted on said support between said assembly and said support and operatively connected to said jacks to enable the assembly to execute slight movements which are imparted to it by the passage of the grinding wheels over the crests of the undulations of the rail, the distance between the peripheries of the grinding wheels and the distance between the edges of the extreme grinding wheels are such as to prevent the penetration by any grinding wheel of a t

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US386456A 1972-08-31 1973-08-07 Carriage for grinding undulations in railway track rails Expired - Lifetime US3918215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1283272A CH575509A5 (enrdf_load_html_response) 1972-08-31 1972-08-31

Publications (1)

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US3918215A true US3918215A (en) 1975-11-11

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ID=4386782

Family Applications (1)

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US386456A Expired - Lifetime US3918215A (en) 1972-08-31 1973-08-07 Carriage for grinding undulations in railway track rails

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US (1) US3918215A (enrdf_load_html_response)
AT (1) AT325652B (enrdf_load_html_response)
BE (1) BE802723A (enrdf_load_html_response)
CA (1) CA999744A (enrdf_load_html_response)
CH (1) CH575509A5 (enrdf_load_html_response)
DE (1) DE2340615C2 (enrdf_load_html_response)
ES (1) ES417635A1 (enrdf_load_html_response)
FR (1) FR2198027B1 (enrdf_load_html_response)
GB (1) GB1405978A (enrdf_load_html_response)
IT (1) IT1003111B (enrdf_load_html_response)
NL (1) NL7308840A (enrdf_load_html_response)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020599A (en) * 1975-05-21 1977-05-03 Speno International S.A. Abrading arrangement for a railway track
US4115857A (en) * 1976-02-18 1978-09-19 Speno International S.A. Process and apparatus for on-track truing of the heads of rails of a railway
US4205494A (en) * 1979-01-18 1980-06-03 Speno Rail Services, Inc. Rail grinding apparatus
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4779384A (en) * 1986-02-13 1988-10-25 Harsco Corporation Rail grinder
USRE32979E (en) * 1984-02-01 1989-07-11 Speno International S.A. Device for the in situ reprofiling of the head of at least one rail of a railroad track
CN115613406A (zh) * 2022-10-24 2023-01-17 中铁物总智能科技有限公司 一种高效率轨道磨削砂轮组及其设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder
US3738066A (en) * 1970-08-14 1973-06-12 R Panetti Device for grinding long undulation waves of railway rails

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR815821A (fr) * 1936-03-31 1937-07-23 Chauffe-eau électrique à accumulation
US2197729A (en) * 1938-01-20 1940-04-16 Pennsylvania Railroad Co Track rail grinding apparatus
FR1167795A (fr) * 1955-11-15 1958-11-28 Speno International Appareil à meuler les rails de chemin de fer
US3606705A (en) * 1969-07-30 1971-09-21 Speno International Rail grinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder
US3738066A (en) * 1970-08-14 1973-06-12 R Panetti Device for grinding long undulation waves of railway rails

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020599A (en) * 1975-05-21 1977-05-03 Speno International S.A. Abrading arrangement for a railway track
US4115857A (en) * 1976-02-18 1978-09-19 Speno International S.A. Process and apparatus for on-track truing of the heads of rails of a railway
US4205494A (en) * 1979-01-18 1980-06-03 Speno Rail Services, Inc. Rail grinding apparatus
FR2446891A1 (fr) * 1979-01-18 1980-08-14 Speno Rail Serv Appareil de meulage de rails
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
USRE32979E (en) * 1984-02-01 1989-07-11 Speno International S.A. Device for the in situ reprofiling of the head of at least one rail of a railroad track
US4779384A (en) * 1986-02-13 1988-10-25 Harsco Corporation Rail grinder
CN115613406A (zh) * 2022-10-24 2023-01-17 中铁物总智能科技有限公司 一种高效率轨道磨削砂轮组及其设备

Also Published As

Publication number Publication date
IT1003111B (it) 1976-06-10
ATA701973A (de) 1975-01-15
DE2340615A1 (de) 1974-03-07
DE2340615C2 (de) 1983-04-28
FR2198027A1 (enrdf_load_html_response) 1974-03-29
NL7308840A (enrdf_load_html_response) 1974-03-04
CA999744A (en) 1976-11-16
BE802723A (fr) 1973-11-16
CH575509A5 (enrdf_load_html_response) 1976-05-14
FR2198027B1 (enrdf_load_html_response) 1977-05-13
ES417635A1 (es) 1976-02-16
AT325652B (de) 1975-11-10
GB1405978A (en) 1975-09-10

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