CN108982251B - Track fastener system transverse rigidity measuring device and track fastener system transverse rigidity measuring method - Google Patents
Track fastener system transverse rigidity measuring device and track fastener system transverse rigidity measuring method Download PDFInfo
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- CN108982251B CN108982251B CN201811047819.8A CN201811047819A CN108982251B CN 108982251 B CN108982251 B CN 108982251B CN 201811047819 A CN201811047819 A CN 201811047819A CN 108982251 B CN108982251 B CN 108982251B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
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Abstract
The invention provides a track fastener system transverse rigidity measuring device and a track fastener system transverse rigidity measuring method, and relates to the technical field of track detection, wherein the track fastener system transverse rigidity measuring method provided by the invention comprises the following steps: placing the track assembly between a first force application member and a second force application member which are oppositely arranged, so that the first force application member acts on one end, away from the second force application member, of the iron base plate, and the second force application member acts on one end, away from the first force application member, of the rail bottom of the track; the first force application member and the second force application member clamp the rail together; and observing the compression deformation of the gauge stop block and the shearing deformation of the elastic base plate under the rail. The technical problem of inaccurate transverse rigidity measurement result of the fastener system in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of rail detection, in particular to a device and a method for measuring the transverse rigidity of a rail fastener system.
Background
The fastener system is one of important parts in the track structure as a rail fastener. The transverse rigidity of the fastener system is provided by the compression deformation of the gauge stop blocks and the shear deformation of the elastic base plates under the rails, and the fastener system plays an important role in the transverse stability of the steel rails. However, there is currently no clear specification in China to provide for the fastener system lateral stiffness testing technique.
The structure of the rail assembly is generally as shown in fig. 1, the upper side of the iron base plate 310 is provided with a rail, wherein an elastic base plate 320 is clamped between the rail bottom 220 of the rail and the iron base plate 310, a fastener 340 is further arranged on the iron base plate 310, the fastener 340 is distributed on two sides of the rail bottom 220, the fastener 340 is fastened at the edge of the rail bottom 220, and a gauge stop 330 is arranged between the fastener 340 and the rail bottom 220.
In the prior art, the lateral stiffness of a fastener system is typically measured by the method shown in fig. 1:
applying force to the rail head 210 in a direction parallel to the rail bottom 220 by using the push rod 100 and the like, and then observing the compression deformation of the gauge stopper 330 and the shearing deformation of the elastic backing plate 320; in the above experiment process, since the rail head 210 is applied with force in the direction parallel to the rail base 220, the rail head 210 rotates along the axis of the middle of the bottom side surface of the rail base 220, the rail base 220 inclines and presses the elastic pad 320, and the elastic pad 320 deforms after being pressed, so that the shear deformation of the elastic pad 320 when being simply subjected to the shear force cannot be directly observed, and therefore, the transverse rigidity result of the fastener system measured by the above measuring method is not accurate.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a track fastener system transverse rigidity measuring device and a track fastener system transverse rigidity measuring method, so as to solve the technical problem that in the prior art, the transverse rigidity measuring result of a fastener system is inaccurate.
In a first aspect, the invention provides a method for measuring the transverse stiffness of a rail fastener system, comprising the following steps:
placing the track assembly between a first force application member and a second force application member which are oppositely arranged, so that the first force application member acts on one end, away from the second force application member, of the iron base plate, and the second force application member acts on one end, away from the first force application member, of the rail bottom of the track;
the first force application member and the second force application member clamp the rail together;
and observing the compression deformation of the gauge stop block and the shearing deformation of the elastic base plate under the rail.
With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein:
make first application of force piece act on the iron backing plate and keep away from the one end of second application of force piece, specifically do:
the end part of the first force application part facing the second force application part is provided with a clamping part, so that the clamping part clamps the edge of the iron base plate.
With reference to the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein:
the second force application part acts on the rail bottom of the rail, and specifically comprises the following steps:
the second force application part comprises two force application platforms which are oppositely arranged, the end part of the iron base plate, which is far away from the first force application part, is arranged between the two force application platforms, and the rail bottoms of the two end parts in the length direction of the rail are respectively abutted on the two force application platforms.
With reference to the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein:
a guide groove is formed between the two force application platforms, the end part, far away from the first force application part, of the iron base plate is in sliding fit with the guide groove, and the distance between the iron base plate and the groove bottom of the guide groove is kept.
With reference to the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein:
the enabling the first force application member and the second force application member to clamp the rail together comprises:
the first force application member applies force to the iron base plate in the direction close to the second force application member, and/or the second force application member applies force to the rail bottom of the rail in the direction close to the first force application member.
With reference to the fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein:
first application of force spare is to the direction that is close to second application of force spare to the application of force of iron backing plate, specifically is:
a linear driving piece is adopted to drive the first force application piece to apply force to the iron base plate in the direction close to the second force application piece;
the second application of force spare is to the rail foot application of force of the direction of being close to first application of force spare to the track, specifically is:
and the linear driving piece is adopted to drive the second force application piece to apply force to the rail bottom of the rail in the direction close to the first force application piece.
Compared with the prior art, the method for measuring the transverse rigidity of the track fastener system has the following advantages:
the invention provides a method for measuring the transverse rigidity of a track fastener system, which is characterized in that a first force application member acts on one end of an iron base plate, which is far away from a second force application member, and a second force application member acts on one end of a track, which is far away from the first force application member, of a rail bottom.
Another objective of the present invention is to provide a track fastener system lateral stiffness measuring device for implementing the track fastener system lateral stiffness measuring method, so as to solve the technical problem of inaccurate lateral stiffness measurement result of the fastener system in the prior art.
In a second aspect, the invention provides a device for measuring the transverse rigidity of a track fastener system, which comprises a first force application member, a second force application member and a driving member, wherein the first force application member and the second force application member are oppositely arranged;
the driving piece is used for driving the first force application piece to be close to or far away from the second force application piece;
the first force application part is used for being abutted with one end, far away from the second force application part, of the iron base plate;
the second force application part comprises at least two force application platforms, and the force application platforms are used for propping against the rail bottoms of the ends of the rails.
In combination with the second aspect, the present invention provides a first possible implementation manner of the second aspect, wherein:
first application of force piece orientation second application of force piece tip is equipped with the holder, the holder includes the splint of two relative settings, two splint are used for the centre gripping the edge of iron tie plate.
In combination with the first possible implementation manner of the second aspect, the present invention provides a second possible implementation manner of the second aspect, wherein:
the clamping plate is detachably connected with the first force application part.
In combination with the second aspect, the present invention provides a third possible embodiment of the second aspect, wherein:
a guide assembly is arranged between the two force application platforms, the guide assembly comprises two guide plates which are oppositely arranged, and a guide groove is formed between the two guide plates;
the iron backing plate is in sliding fit in the guide groove.
Compared with the prior art, the track fastener system transverse rigidity measuring device provided by the invention has the following advantages:
placing the rail assembly between the first force application member and the second force application member, wherein the iron base plate extends along the width direction of a gap between the first force application member and the second force application member, and two ends of the rail extend to the outer side of the iron base plate; the first force application member is driven by the driving member, the first force application member is enabled to move towards the direction close to the second force application member, the first force application member is enabled to be abutted against one end, far away from the second force application member, of the iron base plate, two ends, far away from the side face of the first force application member, of the rail bottom are respectively abutted against the force application table (namely the second force application member), the driving member is operated to enable the first force application member to continuously apply pressure to the iron base plate, the rail bottom presses the force application table, and the force application table generates reaction force to the rail bottom; adopt the transverse rigidity of above-mentioned track fastener system transverse rigidity measuring device test track fastener system, the both ends that the application of force platform acted on the rail end can hold the rail end, and keep orbital both ends balanced atress, simultaneously, only one elastic backing plate in interval between the rail end apart from the iron backing plate, the distance of application of force point to the iron backing plate of application of force platform to the rail end is very little, so the overturning moment that the iron backing plate receives is nearly zero, the rail end is difficult for overstocking the elastic backing plate, so the shear deformation of elastic backing plate is not influenced by the extrusion of rail end, finally can obtain accurate track fastener system transverse rigidity through the shear deformation of elastic backing plate and the compression deformation of gauge dog.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a track assembly;
FIG. 2 is a flow chart of a method for measuring lateral stiffness of a track fastener system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a lateral stiffness measuring device of a fastener system lateral stiffness rail fastener system according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a first force application member and a clamping member in a device for measuring transverse rigidity of a fastener system transverse rigidity track fastener system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of the base, the first force applying member, and the guide assembly of the device for measuring the lateral stiffness of the fastener system according to the embodiment of the present invention.
Icon: 100-a push rod; 210-a railhead; 220-rail bottom; 310-iron tie plate; 320-an elastic backing plate; 330-gauge block; 340-fasteners; 411-a first force applying member; 412-a drive member; 413-a first clamp; 414-a second clamp; 421-a base; 422-a force application platform; 423-third clamp; 424-fourth clamp.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Please refer to fig. 2:
the method for measuring the transverse rigidity of the track fastener system provided by the embodiment of the invention comprises the following steps:
placing the rail assembly between a first force application member 411 and a second force application member which are oppositely arranged, so that the first force application member 411 acts on one end, away from the second force application member, of the iron base plate 310, and the second force application member acts on one end, away from the first force application member 411, of the rail bottom 220 of the rail;
the first force applying member 411 and the second force applying member clamp the rail together;
the amount of compression deformation of the gage block 330 and the amount of shear deformation of the resilient pad 320 were observed.
Further, the first force application member 411 is made to act on one end of the iron backing plate 310 away from the second force application member, specifically:
the end of the first force application member 411 facing the second force application member is provided with a clamping member, so that the clamping member clamps the edge of the iron base plate 310;
as shown in fig. 3, the clamping member includes a first clamping member 413 and a second clamping member 414, the first clamping member 413 and the second clamping member 414 are arranged oppositely, and when the first force applying member 411 is used for pressing the iron pad plate 310, the iron pad plate 310 is clamped by the first clamping member 413 and the second clamping member 414, so that the iron pad plate 310 and the first force applying member 411 are prevented from sliding and dislocating, and the transverse rigidity testing work of the fastener system can be stably performed.
Further, the second force applying member acts on the rail bottom 220 of the rail, specifically:
the second force application member comprises two force application platforms 422 which are oppositely arranged, the end part of the iron base plate 310 far away from the first force application member 411 is arranged between the two force application platforms 422, and the rail bottoms 220 of the two end parts in the length direction of the rail are respectively abutted on the two force application platforms 422;
the two ends of the rail in the rail assembly extend out of the iron base plate 310, and the ends of the rail extending out of the iron base plate 310 are lapped on the force application table 422 through the rail bottom 220, so that when the first force application member 411 applies pressure to the iron base plate 310, the two ends of the rail can be kept balanced; meanwhile, the two ends of the rail extend out of the iron base plate 310, the end part of the rail bottom 220 is supported by the force application platform 422, and the iron base plate 310 cannot touch the force application platform 422, so that the situation that the force application platform 422 influences the measurement result of the transverse rigidity of the rail fastener system due to the fact that the force application platform 422 moves downwards to cause obstruction to the iron base plate 310 due to friction and the like can be avoided.
Further, a guide groove is formed between the two force applying platforms 422, the end part of the iron base plate 310 far away from the first force applying piece 411 is in sliding fit in the guide groove, and the distance between the iron base plate 310 and the groove bottom of the guide groove is kept;
specifically, as shown in fig. 5, a third clamping member 423 and a fourth clamping member 424 are oppositely arranged on the base 421, the third clamping member 423 and the fourth clamping member 424 together form a guide groove, and in fig. 3, the lower end of the iron base plate 310 is in sliding fit with the guide groove between the third clamping member 423 and the fourth clamping member 424, so as to prevent the lower end of the iron base plate 310 from tilting or even falling when being pressed, thereby being beneficial to obtaining a more accurate transverse rigidity test result of the rail fastener system;
the distance between the iron base plate 310 and the bottom of the guide groove is kept to prevent the iron base plate 310 from contacting with the bottom of the guide groove, and the bottom of the guide groove gives a reaction force to the iron base plate 310, so that the reaction force of the second force application member on the rail bottom 220 is reduced, and finally, the accurate transverse rigidity of the rail fastener system cannot be obtained.
Further, making the first force applying member 411 and the second force applying member to clamp the rail together includes:
the first force application member 411 applies force to the iron base plate 310 in a direction close to the second force application member, and/or the second force application member applies force to the rail bottom 220 of the rail in a direction close to the first force application member 411;
specifically, the first force application member 411 and the second force application member are used to clamp the rail together, and the following three forms are included: first, the second force application member is fixed, and the first force application member 411 applies force to the iron backing plate 310 in a direction close to the second force application member; secondly, the first force applying member 411 is fixed, and the second force applying member applies force to the rail bottom 220 of the rail in the direction close to the first force applying member 411; third, the first force application member 411 applies a force to the iron shim plate 310 in a direction approaching the second force application member, and at the same time, the second force application member applies a force to the rail bottom 220 of the rail in a direction approaching the first force application member 411.
Further, the first force application member 411 applies force to the iron backing plate 310 in a direction close to the second force application member, specifically:
driving the first force application member 411 to apply force to the iron base plate 310 in the direction of the second force application member by using a linear driving member, wherein the linear driving member may be a hydraulic cylinder or an air cylinder;
the second force application member applies force to the rail bottom 220 of the rail in the direction of the first force application member 411, specifically:
the second force applying member is driven by a linear driving member, such as a hydraulic cylinder or an air cylinder, to apply a force to the rail bottom 220 of the rail in the direction of the first force applying member 411.
Compared with the prior art, the rail fastener system transverse rigidity measuring method provided by the embodiment of the invention has the following advantages:
in the method for measuring the transverse rigidity of the rail fastener system provided by the embodiment of the invention, when the first force application member 411 is applied to one end, away from the second force application member, of the iron base plate 310, and the second force application member is applied to one end, away from the first force application member 411, of the rail bottom 220 of the rail, the distance from the rail bottom 220 to the iron base plate 310 is equal to the thickness of the elastic base plate 320, when the second force application member applies force to the rail bottom 220, the arm of force of thrust force applied to the rail bottom 220 is almost zero, and the rail is not prone to overturning, so that the finally obtained shear deformation of the elastic base plate 320 is only affected by the shear force of the iron base plate 310 and the rail bottom 220 on the elastic base plate 320, and compared with the method for pushing the rail head 210 in the prior art, the method for measuring the transverse rigidity of the rail.
Example two
The track fastener system transverse rigidity measuring device provided by the embodiment of the invention comprises a first force application member 411, a second force application member and a driving member 412, wherein the first force application member 411 and the second force application member are oppositely arranged;
the driving member 412 is used for driving the first force application member 411 to approach or separate from the second force application member;
the first force application member 411 is used for abutting against one end of the iron base plate 310 away from the second force application member;
the second force applying member comprises at least two force applying platforms 422, the force applying platforms 422 being adapted to abut against the rail foot 220 at the end of the rail.
In this embodiment, the first force applying member 411 has a plate-like structure.
Further, the first force application member 411 is provided with a clamping member towards the end of the second force application member, and the clamping member comprises two oppositely-arranged clamping plates for clamping the edge of the iron base plate 310.
As shown in fig. 3, the clamping member includes a first clamping member 413 and a second clamping member 414, both the first clamping member 413 and the second clamping member 414 are plate-shaped structures, the first clamping member 413 and the second clamping member 414 are oppositely arranged, when the first force applying member 411 is used for applying pressure to the iron pad plate 310, the iron pad plate 310 is clamped by the first clamping member 413 and the second clamping member 414, so that the iron pad plate 310 and the first force applying member 411 are prevented from sliding and dislocating, and the transverse rigidity testing work of the fastener system can be stably performed.
Further, the clamp plate is detachably connected to the first force application member 411;
specifically, the first clamping piece 413 and the second clamping piece 414 are fixed with the first force application piece 411 through bolts; when the thickness of the iron tie plate 310 of the rail assembly to be tested is changed, the first clamping piece 413 and the second clamping piece 414 with different thicknesses can be selected, for example, when the iron tie plate 310 is thickened, the first clamping piece 413 and the second clamping piece 414 which are thinner can be selected, and when the iron tie plate 310 is thinned, the first clamping piece 413 and the second clamping piece 414 which are thicker can be selected; so that the first clamping member 413 and the second clamping member 414 can be tightly fitted to the iron shim plate 310.
In order to facilitate the matching of the iron shim plate 310 with different thicknesses between the first clamping piece 413 and the second clamping piece 414, the following method can be adopted:
a plurality of waist-shaped holes are arranged in parallel on the end face of the first force application member 411 along the length direction perpendicular to the first clamping member 413, bolts are connected in the waist-shaped holes in a sliding mode, nuts of the bolts are located on the side face, away from the second force application member, of the first force application member 411, the bolts penetrate through the first clamping member 413, and the nuts are matched with the free end of the bolts to clamp or loosen the first clamping member 413; when the width of the gap between the first clamping member 413 and the second clamping member 414 needs to be adjusted, the bolt is loosened, the first clamping member 413 is adjusted to a proper position along the waist-shaped hole, the nut is screwed, and the first clamping member 413 and the first force application member 411 are fixed.
As shown in fig. 4, in the present embodiment, the length of the first clamping member 413 is greater than that of the second clamping member 414, so as to: the left space of the second clamping member 414 needs to accommodate the fastener 340.
Further, a guide assembly is arranged between the two force application platforms 422, the guide assembly comprises two guide plates which are oppositely arranged, and a guide groove is formed between the two guide plates;
the iron backing plate 310 is slidably fitted in the guide groove.
Specifically, as shown in fig. 5, a third clamping member 423 and a fourth clamping member 424 are oppositely disposed on the base 421, the third clamping member 423 and the fourth clamping member 424 together form a guide groove, and in fig. 3, the lower end of the iron base plate 310 is slidably fitted in the guide groove between the third clamping member 423 and the fourth clamping member 424, so as to prevent the lower end of the iron base plate 310 from tilting or even falling when being pressed, thereby facilitating obtaining a more accurate transverse stiffness test result of the rail fastener system.
Further, a third clamping member 423 and a fourth clamping member 424 are detachably connected with the base 421;
specifically, as shown in fig. 5, the third clamping piece 423 and the fourth clamping piece 424 are fixed to the base 421 by bolts; when the thickness of the iron tie plate 310 of the rail assembly to be tested is changed, the third clamping piece 423 and the fourth clamping piece 424 with different thicknesses can be selected, for example, when the iron tie plate 310 is thickened, the third clamping piece 423 and the fourth clamping piece 424 can be selected to be thinner, and when the iron tie plate 310 is thinned, the third clamping piece 423 and the fourth clamping piece 424 can be selected to be thicker, so that the third clamping piece 423 and the fourth clamping piece 424 can be tightly matched with the iron tie plate 310.
As shown in fig. 5, in the present embodiment, the length of the third clamping member 423 is much smaller than the length of the fourth clamping member 424, and the purpose is to: the right space of the third clamping member 423 needs to accommodate the fastening member 340.
In order to facilitate the matching of the iron shim plate 310 with different thicknesses between the third clamping piece 423 and the fourth clamping piece 424, the following method can be adopted:
a plurality of waist-shaped holes are arranged in parallel on the end face of the base 421 along the length direction perpendicular to the first clamping piece 413, bolts are connected in the waist-shaped holes in a sliding mode, nuts of the bolts are located on the side face, away from the first force application piece 411, of the base 421, the bolts penetrate through the third clamping piece 423, and the nuts are matched with the free ends of the bolts to clamp or loosen the third clamping piece 423; when the width of the gap between the third clamping piece 423 and the fourth clamping piece 424 needs to be adjusted, the bolt is loosened, the third clamping piece 423 and the fourth clamping piece 424 are adjusted to proper positions along the kidney-shaped hole, the nut is screwed, and the third clamping piece 423 and the base 421 are fixed.
Compared with the prior art, the track fastener system transverse rigidity measuring device provided by the embodiment of the invention has the following advantages:
placing the rail assembly between the first force application member 411 and the second force application member, wherein the iron tie plate 310 extends along the width direction of the gap between the first force application member 411 and the second force application member, and the two ends of the rail extend to the outer side of the iron tie plate 310; the first force applying member 411 is driven by the driving member 412, so that the first force applying member 411 moves toward the second force applying member, further, the first force applying member 411 abuts against one end of the iron base plate 310 away from the second force applying member, and both ends of the rail bottom 220 away from the side surface of the first force applying member 411 abut against the force applying table 422 (i.e. the second force applying member), respectively, the driving member 412 is operated to continue to apply pressure to the iron base plate 310 by the first force applying member 411, the rail bottom 220 presses the force applying table 422, the force applying table 422 generates reaction force to the rail bottom 220, on one hand, the rail bottom 220 generates shearing force to the elastic base plate 320, accordingly, the elastic pad 320 is shear-deformed, and on the other hand, the rail foot 220 presses the gauge block 330 in a direction to approach the first force application member 411, the gauge block 330 is compression-deformed, the transverse stiffness of the rail fastener system can be calculated by observing the shear deformation of the elastic backing plate 320 and the compression deformation of the gauge block 330; the transverse rigidity of the track fastener system is tested by adopting the transverse rigidity measuring device of the track fastener system, the force application platform 422 acts on two ends of the track bottom 220 to support the track bottom 220 and keep the two ends of the track balanced in stress, meanwhile, only one elastic base plate 320 is arranged between the track bottom 220 and the iron base plate 310 at an interval, the distance from the point of application of force to the track bottom 220 by the force application platform 422 to the iron base plate 310 is very small, the overturning moment borne by the iron base plate 310 is almost zero, the track bottom 220 is not easy to accumulate and press the elastic base plate 320, the shearing deformation of the elastic base plate 320 is not influenced by the extrusion of the track bottom 220, and finally, the precise transverse rigidity of the track fastener system can be obtained through the shearing deformation of the elastic base plate 320 and the compression deformation of the track.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A device for measuring the transverse rigidity of a track fastener system is characterized by comprising a first force application member, a second force application member and a driving member, wherein the first force application member and the second force application member are oppositely arranged;
the driving piece is used for driving the first force application piece to be close to or far away from the second force application piece;
the first force application part is used for being abutted with one end, far away from the second force application part, of the iron base plate;
the second force application part comprises at least two force application platforms, and the force application platforms are used for propping against rail bottoms at two end parts of the rail;
the first force application part is provided with a clamping part towards the end part of the second force application part, the clamping part comprises two oppositely arranged clamping plates, and the two clamping plates are used for clamping the edge of the iron base plate;
a guide assembly is arranged between the two force application platforms, the guide assembly comprises two guide plates which are oppositely arranged, and a guide groove is formed between the two guide plates;
the iron base plate is in sliding fit with the guide groove, and the iron base plate keeps a distance from the groove bottom of the guide groove.
2. The rail clip system lateral stiffness measuring device of claim 1, wherein the clamp plate is removably coupled to the first force applying member.
3. A rail clip system lateral stiffness measuring method, based on the rail clip system lateral stiffness measuring device of any one of claims 1-2, further comprising the steps of:
placing the track assembly between a first force application member and a second force application member which are oppositely arranged, so that the first force application member acts on one end, away from the second force application member, of the iron base plate, and the second force application member acts on one end, away from the first force application member, of the rail bottom of the track;
the first force application member and the second force application member clamp the rail together;
observing the compression deformation of the gauge stop block and the shearing deformation of the elastic base plate under the rail;
a guide groove is formed between the two force application platforms, the end part, far away from the first force application part, of the iron base plate is in sliding fit with the guide groove, and the distance between the iron base plate and the groove bottom of the guide groove is kept.
4. The method for measuring the lateral rigidity of the rail fastener system according to claim 3, wherein the step of enabling the first force application member to act on one end of the iron tie plate away from the second force application member comprises the following steps:
the end part of the first force application part facing the second force application part is provided with a clamping part, so that the clamping part clamps the edge of the iron base plate.
5. The method for measuring the lateral rigidity of the rail fastener system according to claim 3, wherein the second force application member acts on the rail bottom of the rail, specifically:
the second force application part comprises two force application platforms which are oppositely arranged, the end part of the iron base plate, which is far away from the first force application part, is arranged between the two force application platforms, and the rail bottoms of the two end parts in the length direction of the rail are respectively abutted on the two force application platforms.
6. The method of claim 3, wherein the causing the first force applying member and the second force applying member to clamp the rail together comprises:
the first force application member applies force to the iron base plate in the direction close to the second force application member, and/or the second force application member applies force to the rail bottom of the rail in the direction close to the first force application member.
7. The method for measuring the lateral rigidity of a track fastener system according to claim 6, wherein the first force application member applies force to the iron tie plate in a direction close to the second force application member, specifically:
a linear driving piece is adopted to drive the first force application piece to apply force to the iron base plate in the direction close to the second force application piece;
the second application of force spare is to the rail foot application of force of the direction of being close to first application of force spare to the track, specifically is:
and the linear driving piece is adopted to drive the second force application piece to apply force to the rail bottom of the rail in the direction close to the first force application piece.
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| JP3387817B2 (en) * | 1998-03-27 | 2003-03-17 | 名古屋電気工業株式会社 | Measuring method of insulation resistance of railway rail joints |
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| CN203965144U (en) * | 2014-07-01 | 2014-11-26 | 中南大学 | Rail fastening lateral stiffness measurement mechanism |
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| CN106644425B (en) * | 2016-10-27 | 2019-12-20 | 中南大学 | Comprehensive measuring device for longitudinal, transverse and vertical three-way resistance of steel rail fastener |
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