WO2011059395A1 - Method and machine for treatment of railway joints - Google Patents

Method and machine for treatment of railway joints Download PDF

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Publication number
WO2011059395A1
WO2011059395A1 PCT/SE2010/051252 SE2010051252W WO2011059395A1 WO 2011059395 A1 WO2011059395 A1 WO 2011059395A1 SE 2010051252 W SE2010051252 W SE 2010051252W WO 2011059395 A1 WO2011059395 A1 WO 2011059395A1
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WO
WIPO (PCT)
Prior art keywords
rail
treatment tool
treatment
machine
joint
Prior art date
Application number
PCT/SE2010/051252
Other languages
French (fr)
Inventor
Göran Palmers
Original Assignee
Industrispår I Ystad Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Industrispår I Ystad Ab filed Critical Industrispår I Ystad Ab
Publication of WO2011059395A1 publication Critical patent/WO2011059395A1/en

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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
    • 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
    • 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
    • E01B31/13—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by milling
    • 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

  • the present invention concerns a method and a machine for treatment of joints, primarily welding joints in railway rails.
  • the splicing of rails is usually carried out by welding the ends of two rails together, and on welding a bead is formed. This bead must be removed so that the wheels of trains are not damaged and in order to make train journeys smoother.
  • the object of the present invention is to provide a method and a machine for treatment of railway rail joints by means of which the manual work is eliminated to a large extent and, with this aim in mind, the method is characterized in that the treatment is performed as a numerically controlled process and in that the machine weighs so little that it can be easily handled by a man.
  • the machine for carrying out the method is characterized in that it comprises a grinding beam with means that is in contact with the rail and that defines a reference plane, which grinding beam supports a height-adjustable treatment tool, which grinding beam is rotatable around a shaft that extends substantially in the rail's longitudinal direction over at least the upper part of the rail, and in that the treatment tool's movement along the rail takes place either by the treatment tool moving along the grinding beam or by the grinding beam's fasteners moving along the rail, the treatment tool's raising and lowering and rotation around the rail and the treatment motion along the rail are accomplished by electrically-powered shafts under the influence of a numerical process.
  • the method of treatment of railway rail joints in which a machine that supports a treatment tool is used, comprises the following steps:
  • step i) that the same procedure as in step d) to step h) is repeated from the opposite direction, so as to obtain the location as well as the height and width of the joint, j) that the grinding is started by the machine or the treatment tool being moved back and forth over the joint, at the same time as the treatment tool is rotated around a shaft that extends in the longitudinal direction of the rail over at least the upper part of the rail so that all parts that are to be treated are reached by the treatment tool.
  • the method comprises the step that the treatment tool, when the treatment approaches the dimensions determined regarding the joint's height according to step i) is brought to move in a new way according to step d) to determine the treatment tool's wear relative to the reference plane which wear has taken place during the carried out treatment since the previous measurement, and a new reference value is calculated with regard to this wear, after which final treatment is carried out in accordance with step j).
  • the present invention also concerns a machine for implementing the method according to any of the preceding embodiments of the invention.
  • the machine includes a frame that is moveable along a railway rail, which frame supports a treatment tool holding beam with means that is in contact with the rail and that defines a reference plane, and that supports a height-adjustable treatment tool, which beam is rotatable about a shaft that extends substantially in the longitudinal direction of the rail, over at least the upper part of the rail, and that the frame's movement along the rail, the treatment tool's raising and lowering and rotation around the rail, and the treatment motion are accomplished by electrically-powered shafts under the influence of a numerical process.
  • the frame includes means to non- rotatably lock the frame relative to the rail.
  • the treatment tool is either a grinding tool or a cutting tool.
  • Fig 1 shows in perspective and at angle from above, a short side of a machine according to the invention positioned on a section of railway rail.
  • Figure 2 is a perspective view shown at an angle from above and from the opposite short side of the machine shown in Figure 1.
  • Figure 3 is a perspective view shown at an angle from the short side shown in Figure 1 , whereby parts of the machine have been omitted to promote understanding, and a treatment tool-supporting part of the machine is angled around the longitudinal direction of the rail.
  • Figure 4 is a perspective view corresponding to Fig 1 but with a part of the machine omitted in order to promote understanding, and
  • Figure 5 is an end view of the machine according to the invention positioned on a rail and with the treatment tool-supporting part of the same positioned at an angle as in Figure 3.
  • the machine is shown in Figure 1 in perspective placed on a section of a rail 1 , and it includes a carriage that is formed by an outer frame 2, and two rail fasteners 3, which grip the rail at two positions at a distance from each other in the longitudinal direction of the rail.
  • Each fastener consists of a support roller 7 at the top of the rail and two V- shaped wheels 5 which grip around the corner between the side and the underside of the running surface on the rail.
  • One support roller 7 is driven while the other is a measuring roller.
  • the outer frame 2 is provided with a driving motor or a traction motor 6, via which the driven support roller 7 can drive the carriage back and forth on the rail.
  • a treatment tool holding beam 8 whose angle is adjustable with respect to the outer frame, is arranged inside the outer frame 2.
  • the treatment tool holding beam 8 supports two reference rollers located in the vicinity of the front and rear ends of the reference rollers 4, which rest against the rail's surface and form a common rotating mechanical reference plane that is always in contact with the rail.
  • a substantially half-circular protecting plate 9 is arranged at the end of the machine shown closest in Figure 1.
  • a vertically arranged driving motor 10 for a treatment tool 11 that can for example be a grinding tool or a cutting tool with which the un-evenness of the rail joint can be removed, can also be seen.
  • Figure 2 shows the machine according to the invention in perspective from the opposite side compared to Figure 1 and it can here be seen that a cog track is located along the circular contour of the protecting plate 9.
  • a fixed rotatable shaft 13 around which two rocker arms are pivotably arranged is arranged in the outer frame 2.
  • the rotatable shaft 13 lies parallel to the rail 1 and just above the wear surface on the rail.
  • the rocker arms and thereby the entire treatment tool holding beam 8 can be rotated around the rotatable shaft 13 by means of a drive unit, which includes a driving motor 14.
  • the treatment tool holding beam's 8 main parts are a treatment tool 11 , such as a grinding cap, a grinding belt or a cutting tool and a driving motor 10 and reference rollers 4.
  • the driving motor 10 is preferably an electric motor.
  • the reference rollers 4 are fixedly mounted in the treatment tool holding beam 8 and form a plane that is in contact with the surface of the rail.
  • the beam's two reference rollers 4 are pressed against the rail 1 with a force exerted by springs, so that the mechanical reference plane is in contact with the wear surface on the rail 1.
  • the treatment tool's 11 distance to the surface of the rail is the same as to the reference plane and can be adjusted with high precision and is independent of the treatment tool holding beam's angle to the rotatable shaft.
  • the treatment tool's driving motor 10 - and thus the treatment tool 11 - is raised and lowered by means of an actuator 15 arranged in the treatment tool holding beam 8.
  • Figure 3 shows a side view from an angle from the side of the machine according to the invention where the front protecting plate has been omitted. This shows how the cog track 12 interacts with a drive wheel 16 that is preferably driven by an electric driving motor 14. It is apparent from this figure how the entire treatment tool holding beam 8 has been rotated through 80 ° around the rotatable shaft 13 in a clockwise direction so that the treatment tool will, in this position, be able to treat the surface of the rail 1 which lies between the underside of its wear surface and its side surface.
  • the treatment tool holding beam 8 can of course also be rotated between ⁇ 0 and approximately ⁇ 90 °, so that the corresponding opposing surface of the rail can be treated. Since the treatment tool holding beam 8 during its rotation constantly describes an arc corresponding to the rail's profile around the shaft 13 the treatment tool 11 will constantly be located at the same distance from the mechanical reference plane formed by the two reference rollers 4 (see Figure 2). The treatment tool 11 can be moved to and from the treatment surface by means of the actuator 15, as will be explained further below.
  • the machine is connected to a computer 18 that in a numerical process monitors and controls the various motors 6, 10 and 14 and the actuator 15. This computer 18 is shown schematically in Figure 1 located outside the outer frame 2 and is provided with conductors that are connected to the motors and actuators.
  • Figure 4 is a perspective view essentially corresponding to Fig 1 but with the protecting plate omitted and with the treatment tool holding beam 8 in its neutral position, i.e. in the position in which the treatment tool 11 is in position for treating the rail's wear surface. It also shows how the V-shaped wheels 5 of the rail fasteners 3 are rotatably arranged on angled arms 7 that are pivotably mounted in the outer frame 2 to allow for simple fastening of the rail fasteners to the rail 1.
  • the location of those angled arms 17 relative to the rail 1 can be adjustable with screws or the like.
  • Figure 5 shows an end view of the machine according to the invention mounted on a rail 1 with a reference roller 4 in contact with the rail's wear surface, and two V-shaped wheels 5 engaging the rail's side surface and underside of the rail's wear surface.
  • the machine is placed on the rail, above the joint, so that the joint is located at the side of treatment tool.
  • the rail fasteners 3 are activated and the support rollers 7 and V-shaped wheels 5 are clamped on the rail 1 so that the machine is anchored to the rail.
  • the machine is supplied with information about which side of the treatment tool 1 the joint is located.
  • the machine receives a start signal from an operator.
  • the machine begins to slowly rotate the treatment tool 11 using a motor at low power and lowers it to the rail. When the treatment tool 11 comes into contact with the rail the motor 10 detects this. This position is then the reference position for the treatment tool's position relative to the reference plane formed by the reference rollers 4.
  • the treatment tool 11 then moves up a few mm from the reference plane.
  • the traction motor 6 drives the outer frame and thus the treatment tool holding beam 8 and treatment tool 11 along the longitudinal direction of the rail until the treatment tool meets the joint. This is detected by the treatment tool's 11 driving motor 10. The treatment tool 11 is then raised in a stepwise manner until it loses contact with the joint.
  • the machine then repeats the scaling of the joint from the other direction. This will provide information on the location, height and width of the joint.
  • the treatment begins by the carriage moving back and forth over the joint while the treatment tool holding beam 8 is turned sideways so that all parts of the rail that are to be treated are reached by the treatment tool 1.
  • the new reference value is used for final treatment with the desired accuracy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

The present invention concerns a method and a machine for the treatment of joints in railway rails (1 ) whereby the treatment is performed as a numerically controlled process with a machine that includes a frame (2) that is moveable along a railway rail (1), whereby the frame supports a treatment tool holding beam (8) with means (4) that is in contact with the rail and that defines a reference plane, whereby the beam supports a height-adjustable treatment tool (11 ) and the beam is rotatable about a shaft (13) extending substantially in the longitudinal direction of the rail over at least the upper part of the rail, and the frame's (2) movement along the rail (1), the treatment tool's (11 ) raising and lowering and rotation around the rail and the treatment motion is accomplished by electrically-powered shafts under the influence of a numerical process.

Description

METHOD AND MACHINE FOR TREATMENT OF RAILWAY RAIL JOINTS
Field of the invention
The present invention concerns a method and a machine for treatment of joints, primarily welding joints in railway rails.
Background of the invention
The splicing of rails is usually carried out by welding the ends of two rails together, and on welding a bead is formed. This bead must be removed so that the wheels of trains are not damaged and in order to make train journeys smoother.
This is performed with various grinding machines. The previously known methods and devices are designed for manual handling and the work is tough.
Object of the invention and the most important features
The object of the present invention is to provide a method and a machine for treatment of railway rail joints by means of which the manual work is eliminated to a large extent and, with this aim in mind, the method is characterized in that the treatment is performed as a numerically controlled process and in that the machine weighs so little that it can be easily handled by a man.
The machine for carrying out the method is characterized in that it comprises a grinding beam with means that is in contact with the rail and that defines a reference plane, which grinding beam supports a height-adjustable treatment tool, which grinding beam is rotatable around a shaft that extends substantially in the rail's longitudinal direction over at least the upper part of the rail, and in that the treatment tool's movement along the rail takes place either by the treatment tool moving along the grinding beam or by the grinding beam's fasteners moving along the rail, the treatment tool's raising and lowering and rotation around the rail and the treatment motion along the rail are accomplished by electrically-powered shafts under the influence of a numerical process. According to an embodiment of the invention the method of treatment of railway rail joints, in which a machine that supports a treatment tool is used, comprises the following steps:
a) that the machine is placed on the rail over the joint that is to be treated,
b) that the machine is non-rotatably locked to the rail,
c) that (if the machine includes a moveable frame) the machine comprises a control member, which is informed about which side of the treatment tool the joint is located before the machine is started;
d) that the treatment tool of the numerical control is brought to rotate slowly at a low power and is lowered down to the rail, until the treatment tool contacts the rail, which is detected by the variation in at least one of the rotational speed and torque of the treatment tool's motor,
e) that this position is then used as a reference for the treatment tool's location in relation to a reference plane,
f) that the treatment tool is raised from the reference plane,
g) that the machine or treatment tool is moved in the rail's longitudinal direction until the treatment meets the joint, which is detected by a change of torque and/or rotational speed of the treatment's tool motor, i.e. the whole machine is moved or at least a part of the machine is moved, for example, only the treatment tool is moved,
h) that the treatment tool is then raised in a stepwise manner until its motor detects that the treatment tool has lost contact with the joint,
i) that the same procedure as in step d) to step h) is repeated from the opposite direction, so as to obtain the location as well as the height and width of the joint, j) that the grinding is started by the machine or the treatment tool being moved back and forth over the joint, at the same time as the treatment tool is rotated around a shaft that extends in the longitudinal direction of the rail over at least the upper part of the rail so that all parts that are to be treated are reached by the treatment tool.
According to another embodiment of the invention, the method comprises the step that the treatment tool, when the treatment approaches the dimensions determined regarding the joint's height according to step i) is brought to move in a new way according to step d) to determine the treatment tool's wear relative to the reference plane which wear has taken place during the carried out treatment since the previous measurement, and a new reference value is calculated with regard to this wear, after which final treatment is carried out in accordance with step j).
The present invention also concerns a machine for implementing the method according to any of the preceding embodiments of the invention. The machine includes a frame that is moveable along a railway rail, which frame supports a treatment tool holding beam with means that is in contact with the rail and that defines a reference plane, and that supports a height-adjustable treatment tool, which beam is rotatable about a shaft that extends substantially in the longitudinal direction of the rail, over at least the upper part of the rail, and that the frame's movement along the rail, the treatment tool's raising and lowering and rotation around the rail, and the treatment motion are accomplished by electrically-powered shafts under the influence of a numerical process.
According to another embodiment of the invention the frame includes means to non- rotatably lock the frame relative to the rail.
According to a further embodiment of the invention the treatment tool is either a grinding tool or a cutting tool.
Brief description of the drawings
The invention will hereinafter be described in more detail with reference to a non- limiting embodiment, as illustrated in the accompanying figures.
Fig 1 shows in perspective and at angle from above, a short side of a machine according to the invention positioned on a section of railway rail.
Figure 2 is a perspective view shown at an angle from above and from the opposite short side of the machine shown in Figure 1.
Figure 3 is a perspective view shown at an angle from the short side shown in Figure 1 , whereby parts of the machine have been omitted to promote understanding, and a treatment tool-supporting part of the machine is angled around the longitudinal direction of the rail. Figure 4 is a perspective view corresponding to Fig 1 but with a part of the machine omitted in order to promote understanding, and
Figure 5 is an end view of the machine according to the invention positioned on a rail and with the treatment tool-supporting part of the same positioned at an angle as in Figure 3.
Detailed description of preferred embodiments
The machine is shown in Figure 1 in perspective placed on a section of a rail 1 , and it includes a carriage that is formed by an outer frame 2, and two rail fasteners 3, which grip the rail at two positions at a distance from each other in the longitudinal direction of the rail. Each fastener consists of a support roller 7 at the top of the rail and two V- shaped wheels 5 which grip around the corner between the side and the underside of the running surface on the rail. One support roller 7 is driven while the other is a measuring roller.
The outer frame 2 is provided with a driving motor or a traction motor 6, via which the driven support roller 7 can drive the carriage back and forth on the rail. A treatment tool holding beam 8 whose angle is adjustable with respect to the outer frame, is arranged inside the outer frame 2. The treatment tool holding beam 8 supports two reference rollers located in the vicinity of the front and rear ends of the reference rollers 4, which rest against the rail's surface and form a common rotating mechanical reference plane that is always in contact with the rail.
A substantially half-circular protecting plate 9 is arranged at the end of the machine shown closest in Figure 1. In this view a vertically arranged driving motor 10 for a treatment tool 11 , that can for example be a grinding tool or a cutting tool with which the un-evenness of the rail joint can be removed, can also be seen.
Figure 2 shows the machine according to the invention in perspective from the opposite side compared to Figure 1 and it can here be seen that a cog track is located along the circular contour of the protecting plate 9. A fixed rotatable shaft 13 around which two rocker arms are pivotably arranged is arranged in the outer frame 2. The rotatable shaft 13 lies parallel to the rail 1 and just above the wear surface on the rail. The rocker arms and thereby the entire treatment tool holding beam 8 can be rotated around the rotatable shaft 13 by means of a drive unit, which includes a driving motor 14.
The treatment tool holding beam's 8 main parts are a treatment tool 11 , such as a grinding cap, a grinding belt or a cutting tool and a driving motor 10 and reference rollers 4. The driving motor 10 is preferably an electric motor.
The reference rollers 4 are fixedly mounted in the treatment tool holding beam 8 and form a plane that is in contact with the surface of the rail. The beam's two reference rollers 4 are pressed against the rail 1 with a force exerted by springs, so that the mechanical reference plane is in contact with the wear surface on the rail 1. The treatment tool's 11 distance to the surface of the rail is the same as to the reference plane and can be adjusted with high precision and is independent of the treatment tool holding beam's angle to the rotatable shaft.
The treatment tool's driving motor 10 - and thus the treatment tool 11 - is raised and lowered by means of an actuator 15 arranged in the treatment tool holding beam 8.
Figure 3 shows a side view from an angle from the side of the machine according to the invention where the front protecting plate has been omitted. This shows how the cog track 12 interacts with a drive wheel 16 that is preferably driven by an electric driving motor 14. It is apparent from this figure how the entire treatment tool holding beam 8 has been rotated through 80 ° around the rotatable shaft 13 in a clockwise direction so that the treatment tool will, in this position, be able to treat the surface of the rail 1 which lies between the underside of its wear surface and its side surface.
The treatment tool holding beam 8 can of course also be rotated between ±0 and approximately ± 90 °, so that the corresponding opposing surface of the rail can be treated. Since the treatment tool holding beam 8 during its rotation constantly describes an arc corresponding to the rail's profile around the shaft 13 the treatment tool 11 will constantly be located at the same distance from the mechanical reference plane formed by the two reference rollers 4 (see Figure 2). The treatment tool 11 can be moved to and from the treatment surface by means of the actuator 15, as will be explained further below. The machine is connected to a computer 18 that in a numerical process monitors and controls the various motors 6, 10 and 14 and the actuator 15. This computer 18 is shown schematically in Figure 1 located outside the outer frame 2 and is provided with conductors that are connected to the motors and actuators.
Figure 4 is a perspective view essentially corresponding to Fig 1 but with the protecting plate omitted and with the treatment tool holding beam 8 in its neutral position, i.e. in the position in which the treatment tool 11 is in position for treating the rail's wear surface. It also shows how the V-shaped wheels 5 of the rail fasteners 3 are rotatably arranged on angled arms 7 that are pivotably mounted in the outer frame 2 to allow for simple fastening of the rail fasteners to the rail 1. The location of those angled arms 17 relative to the rail 1 can be adjustable with screws or the like. When the machine is placed on the rail the wheels 5 are bent outwards, so that the wheels 5 and the rollers can easily straddle the rail. When the rollers 7 rest against the top side of the rail the V- shaped wheels 5 are driven towards the rail by means of screws or the like so that the wheels 5 lock onto the rail. The treatment tool holding beam's reference rollers 4 are pressed against the rail using resilient means (not shown).
Figure 5 shows an end view of the machine according to the invention mounted on a rail 1 with a reference roller 4 in contact with the rail's wear surface, and two V-shaped wheels 5 engaging the rail's side surface and underside of the rail's wear surface.
The operation of the machine is as follows.
1. The machine is placed on the rail, above the joint, so that the joint is located at the side of treatment tool.
2. The rail fasteners 3 are activated and the support rollers 7 and V-shaped wheels 5 are clamped on the rail 1 so that the machine is anchored to the rail.
3. The machine is supplied with information about which side of the treatment tool 1 the joint is located.
4. The machine receives a start signal from an operator.
5. The machine begins to slowly rotate the treatment tool 11 using a motor at low power and lowers it to the rail. When the treatment tool 11 comes into contact with the rail the motor 10 detects this. This position is then the reference position for the treatment tool's position relative to the reference plane formed by the reference rollers 4.
6. The treatment tool 11 then moves up a few mm from the reference plane.
7. The traction motor 6 drives the outer frame and thus the treatment tool holding beam 8 and treatment tool 11 along the longitudinal direction of the rail until the treatment tool meets the joint. This is detected by the treatment tool's 11 driving motor 10. The treatment tool 11 is then raised in a stepwise manner until it loses contact with the joint.
8. The machine then repeats the scaling of the joint from the other direction. This will provide information on the location, height and width of the joint.
9. The treatment begins by the carriage moving back and forth over the joint while the treatment tool holding beam 8 is turned sideways so that all parts of the rail that are to be treated are reached by the treatment tool 1.
10. When the treatment tool 11 has come so far down during the treatment that it is starting to approach the measured value for the reference plane, a new reference measurement is made to ascertain how much the treatment tool has been worn during the treatment.
11. The new reference value is used for final treatment with the desired accuracy.
12. The treatment is complete and the machine can be removed from the rail.
The invention is not limited to the embodiments illustrated in the accompanying drawings and described in connection therewith but modifications and variations are possible within the scope of the following claims.

Claims

1. Method for treatment of joints in railway rails, in which a machine that supports a treatment tool (11) is used,
characterized in that,
a) the machine is placed on the rail (1) over the joint that is to be treated,
b) the machine is non-rotatably locked to the rail,
c) the treatment tool (11) is brought to rotate slowly at a low power by means of numerical control and is lowered down to the rail (1) until the treatment tool makes contact with the rail, which is detected by variation in at least one of the rotational speed and torque of the treatment tool's motor (10) ,
d) this position is then used as reference for the treatment tool's location in relation to a reference plane,
e) the treatment tool is raised from the reference plane,
f) the machine or at least part of the machine, such as the treatment tool (11), is moved along the longitudinal direction of the rail until the treatment tool (11) meets the joint, which is detected by change of torque and/or rotational speed of the treatment tool's motor (10),
g) the treatment tool (11) is then raised in a stepwise manner until the motor (10) detects that the treatment tool has lost contact with the joint,
h) the same procedure as in step c) to step g) is repeated from the opposite direction, so that the location, height and width of the joint are obtained,
i) grinding is started by the machine or part of the machine being moved back and forth over the joint while the treatment tool (11) is rotated around a shaft (13) that extends in the longitudinal direction of the rail over at least the upper part of the rail, so that all of the parts that are to be treated are reached by the treatment tool (11).
2. Method according to claim 1 ,
characterized in that,
the treatment tool (11), when the treatment approaches the dimensions that are determined regarding the joint's height according to step h), is brought to move in a new way according to step c) to determine the treatment tool wear relative to the reference plane during the treatment carried out since the previous measurement, and a new reference value is calculated with regard to such wear, whereafter final treatment is carried out according to step i).
3. Machine for implementation of the method according to any of the preceding claims, characterized in that,
it includes a frame (2) that is moveable along a railway rail (1);
which frame is arranged to support a treatment tool holding beam (8) with means (4) that is in contact with the rail and that defines a reference plane, and that supports a height-adjustable treatment tool (11), whereby the beam is rotatable about a shaft (13) that extends substantially in the longitudinal direction of the rail over at least the upper part of the rail, and
the treatment tool's (11) raising and lowering and rotation around the rail and the treatment motion along the rail is accomplished by electrically-powered shafts under the influence of a numerical process.
4. Machine according to claim 3,
characterized in that,
the frame (2) includes means (3, 5, 7) for non-rotatably locking the frame in relation to rail (1).
5. Machine according to claim 3 or 4;
characterized in that,
the treatment tool (11) is either a grinding tool or a cutting tool.
PCT/SE2010/051252 2009-11-13 2010-11-15 Method and machine for treatment of railway joints WO2011059395A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0950855-7 2009-11-13
SE0950855A SE534317C2 (en) 2009-11-13 2009-11-13 Method and machine for machining joints in railways

Publications (1)

Publication Number Publication Date
WO2011059395A1 true WO2011059395A1 (en) 2011-05-19

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WO (1) WO2011059395A1 (en)

Cited By (8)

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WO2012146540A1 (en) * 2011-04-26 2012-11-01 Fama S.R.L. Tangential grinding machine
CN104594145A (en) * 2015-01-05 2015-05-06 中国十七冶集团有限公司 Point-touch grinder for track grinding
CN105502171A (en) * 2016-01-08 2016-04-20 中国铁建高新装备股份有限公司 Abrasive disk replacing device and hook special for abrasive disk
CN108330754A (en) * 2018-01-18 2018-07-27 深圳市中科智诚科技有限公司 A kind of simple operation type track grinding apparatus with cleaning function
CN109590247A (en) * 2018-11-30 2019-04-09 合肥巍华钢结构有限公司 A kind of H profile steel surface cleaning apparatus
WO2020057769A1 (en) 2018-09-17 2020-03-26 Goldschmidt Thermit Gmbh Device for re-profiling and deburring rails
CN111254768A (en) * 2019-09-06 2020-06-09 济南豪特创新管理咨询合伙企业(有限合伙) Ultrasonic metal surface treatment method for steel rail welding joint
NL2023916B1 (en) * 2019-09-27 2021-05-27 Volkerwessels Intellectuele Eigendom Bv Local grinding of a rail

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WO2012146540A1 (en) * 2011-04-26 2012-11-01 Fama S.R.L. Tangential grinding machine
CN104594145A (en) * 2015-01-05 2015-05-06 中国十七冶集团有限公司 Point-touch grinder for track grinding
CN104594145B (en) * 2015-01-05 2016-08-24 中国十七冶集团有限公司 Point contact type sander is used in a kind of track polishing
CN105502171A (en) * 2016-01-08 2016-04-20 中国铁建高新装备股份有限公司 Abrasive disk replacing device and hook special for abrasive disk
CN108330754A (en) * 2018-01-18 2018-07-27 深圳市中科智诚科技有限公司 A kind of simple operation type track grinding apparatus with cleaning function
WO2020057769A1 (en) 2018-09-17 2020-03-26 Goldschmidt Thermit Gmbh Device for re-profiling and deburring rails
AU2019343430B2 (en) * 2018-09-17 2022-09-29 Goldschmidt Holding GmbH Device for re-profiling and deburring rails
CN109590247A (en) * 2018-11-30 2019-04-09 合肥巍华钢结构有限公司 A kind of H profile steel surface cleaning apparatus
CN111254768A (en) * 2019-09-06 2020-06-09 济南豪特创新管理咨询合伙企业(有限合伙) Ultrasonic metal surface treatment method for steel rail welding joint
NL2023916B1 (en) * 2019-09-27 2021-05-27 Volkerwessels Intellectuele Eigendom Bv Local grinding of a rail

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SE534317C2 (en) 2011-07-05

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