CN108982251A - Rail clip system lateral stiffness measurement method and measuring device - Google Patents
Rail clip system lateral stiffness measurement method and measuring device Download PDFInfo
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- CN108982251A CN108982251A CN201811047819.8A CN201811047819A CN108982251A CN 108982251 A CN108982251 A CN 108982251A CN 201811047819 A CN201811047819 A CN 201811047819A CN 108982251 A CN108982251 A CN 108982251A
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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
Abstract
The present invention provides a kind of rail clip system lateral stiffness measurement method and measuring devices, it is related to the technical field of track detecting, rail clip system lateral stiffness measurement method provided by the invention makes that the first force-applying piece acts on one end far from the second force-applying piece of iron chair, the second force-applying piece acts on the rail bottom of track far from one end of the first force-applying piece the following steps are included: rail assembly is placed between the first force-applying piece and the second force-applying piece being oppositely arranged；Make the first force-applying piece and the second force-applying piece jointly by railway clamping；Observe resilient sleeper-bearing shear deformation under the compression deformation and rail of gauge block.Solves the technical problem of the lateral stiffness measurement result inaccuracy of fastener system in the prior art.
Description
Technical field
The present invention relates to track fields, more particularly, to a kind of rail clip system lateral stiffness measurement method
And measuring device.
Background technique
Fastener system is one of important spare part in track structure as rail fastener.The lateral stiffness of fastener system
By the compressive deformation of gauge block with resilient sleeper-bearing under rail is shear-deformable is provided, play an important role to rail lateral stability.
However, domestic, at present there is no clearly specification contacting piece system lateral stiffness measuring technologies to be provided.
The structure of rail assembly is usually as shown in Figure 1, track, the rail bottom of middle orbit is arranged in the upper side of iron chair 310
It is folded with resilient sleeper-bearing 320 between 220 and iron chair 310, fastener 340 is additionally provided on iron chair 310, fastener 340 is distributed in rail
The two sides at bottom 220, fastener 340 are buckled in the edge of rail bottom 220, and gauge block 330 is equipped between fastener 340 and rail bottom 220.
In the prior art, the lateral stiffness for measuring fastener system generallys use method as shown in Figure 1:
It exerts a force along the direction for being parallel to rail bottom 220 to rail head 210 using push rod 100 is equal, then observes gauge block 330 and press
Compression deformation and resilient sleeper-bearing 320 are shear-deformable；In the above experimentation, due to being to rail head 210 along the side for being parallel to rail bottom 220
To force, rail head 210 simultaneously can squeeze resilient sleeper-bearing with the axis rotation in the middle part of the bottom side of rail bottom 220,220 run-off the straight of rail bottom
320, and resilient sleeper-bearing 320 is deformed after being squeezed and leads to not directly observe resilient sleeper-bearing 320 merely by shearing force
When shear deformation, therefore, the lateral stiffness result for the fastener system that the above measurement method measures is inaccurate.
The information disclosed in the background technology section is intended only to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Summary of the invention
The purpose of the present invention is to provide a kind of rail clip system lateral stiffness measurement methods, to alleviate in the prior art
The technical problem of the lateral stiffness measurement result inaccuracy of fastener system.
In a first aspect, rail clip system lateral stiffness measurement method provided by the invention the following steps are included:
Rail assembly is placed between the first force-applying piece and the second force-applying piece being oppositely arranged, acts on the first force-applying piece
One end far from the second force-applying piece of iron chair, the second force-applying piece act on the rail bottom of track far from one end of the first force-applying piece；
Make the first force-applying piece and the second force-applying piece jointly by railway clamping；
Observe resilient sleeper-bearing shear deformation under the compression deformation and rail of gauge block.
With reference to first aspect, the present invention provides the first possible embodiments of first aspect, in which:
It is described that the first force-applying piece is made to act on the one end of iron chair far from the second force-applying piece, specifically:
Clamping piece is arranged towards the end of the second force-applying piece in first force-applying piece, and clamping piece is made to clamp the edge of iron chair.
With reference to first aspect, the present invention provides second of possible embodiments of first aspect, in which:
Second force-applying piece acts on the rail bottom of track, specifically:
Second force-applying piece includes two and is oppositely arranged force platform, and iron chair is placed in two far from the end of the first force-applying piece and applies
Between power platform, the rail bottom of two ends on track length direction is connected to respectively on two force platforms.
The possible embodiment of second with reference to first aspect, the third the present invention provides first aspect are possible
Embodiment, in which:
Guide groove is equipped between two force platforms, iron chair is snug fit at guide groove far from the end of the first force-applying piece
In, and the slot bottom of iron chair and guide groove is kept at a distance.
With reference to first aspect, the present invention provides the 4th kind of possible embodiments of first aspect, in which:
It is described to make the first force-applying piece and railway clamping is included: by the second force-applying piece jointly
First force-applying piece exerts a force to iron chair to the direction close to the second force-applying piece, and/or, the second force-applying piece is to close to the
The direction of one force-applying piece exerts a force to the rail bottom of track.
The 4th kind of possible embodiment with reference to first aspect, the 5th kind the present invention provides first aspect are possible
Embodiment, in which:
First force-applying piece exerts a force to iron chair to the direction close to the second force-applying piece, specifically:
The first force-applying piece is driven to exert a force to the direction close to the second force-applying piece to iron chair using linear drives part；
Second force-applying piece exerts a force to rail bottom of the direction close to the first force-applying piece to track, specifically:
The second force-applying piece is driven to exert a force to rail bottom of the direction close to the first force-applying piece to track using linear drives part.
Compared with prior art, rail clip system lateral stiffness measurement method provided by the invention has the advantage that
Rail clip system lateral stiffness measurement method provided by the invention, makes the first force-applying piece act on iron chair separate
One end of second force-applying piece, the second force-applying piece act on the rail bottom of track far from one end of the first force-applying piece, due to rail bottom distance
The distance of iron chair is equivalent to the thickness of resilient sleeper-bearing, when the second force-applying piece exerts a force to rail bottom, thrust suffered by rail bottom
The arm of force is almost nil, and track is less likely to occur to topple, therefore, shear-deformable of the resilient sleeper-bearing finally obtained by iron chair and
Influence of the rail bottom to resilient sleeper-bearing shearing force, compared with the method for pushing away rail head in the prior art, rail clip provided by the invention
System lateral stiffness measurement method is more accurate.
Another object of the present invention is to provide one kind for implementing above-mentioned rail clip system lateral stiffness measurement method
Measuring device, to solve the technical problem of the lateral stiffness measurement result inaccuracy of fastener system in the prior art.
Second aspect, measuring device provided by the invention include: the first force-applying piece, the second force-applying piece and actuator, described
First force-applying piece and second force-applying piece are oppositely arranged；
The actuator is for driving first force-applying piece close or far from second force-applying piece；
First force-applying piece with iron chair far from one end of second force-applying piece for abutting；
Second force-applying piece includes at least two force platforms, and the force platform is used to resist the rail bottom of the end of track.
In conjunction with second aspect, the present invention provides the first possible embodiments of second aspect, in which:
First force-applying piece is equipped with clamping piece towards second force-applying piece end, and the clamping piece includes two opposite
The clamping plate of setting, two clamping plates are used to clamp the edge of the iron chair.
In conjunction with the first possible embodiment of second aspect, second the present invention provides second aspect may
Embodiment, in which:
The clamping plate is detachably connected with first force-applying piece.
In conjunction with second aspect, the present invention provides the third possible embodiments of second aspect, in which:
Guidance set is equipped between two force platforms, the guidance set includes two guide plates being oppositely arranged,
Guide groove is formed between two guide plates；
The iron chair is snug fit in the guide groove.
Compared with prior art, measuring device provided by the invention has the advantage that
Rail assembly is placed between the first force-applying piece and the second force-applying piece, wherein iron chair along the first force-applying piece and
The width direction in the gap between the second force-applying piece extends, and the both ends of track extend on the outside of iron chair；It is driven by actuator
It is mobile to the direction of close second force-applying piece to make the first force-applying piece, and then keeps the first force-applying piece remote with iron chair for first force-applying piece
One end from the second force-applying piece abuts, (i.e. second exerts a force with force platform respectively at the both ends of side of the rail bottom far from the first force-applying piece
Part) it abuts, actuator is manipulated to continue to make the first force-applying piece to apply pressure to iron chair, and rail bottom squeezes force platform, and exert a force platform pair
Rail bottom generates reaction force, on the one hand, and rail bottom generates shearing force to resilient sleeper-bearing, thus, resilient sleeper-bearing generation is shear-deformable, separately
On the one hand, rail bottom squeezes gauge block to the direction close to the first force-applying piece, and gauge block generates compressive deformation, by observing bullet
The compressive deformation of the shear-deformable and gauge block of property backing plate can extrapolate the lateral stiffness of rail clip system；Using above-mentioned
The lateral stiffness of measuring device test tracks fastener system, the both ends that force platform acts on rail bottom can hold rail bottom, and keep
The both ends force balance of track, simultaneously as rail bottom is only spaced a resilient sleeper-bearing between iron chair, the platform that exerts a force is to rail bottom
The point of application to iron chair apart from very little, therefore tilting moment suffered by iron chair is almost nil, and rail bottom is not easy to overstock elastic cushion
Plate, so the shear-deformable of resilient sleeper-bearing is not influenced by rail bottom extruding, eventually by the shear-deformable and gauge of resilient sleeper-bearing
The compressive deformation of block can obtain accurate rail clip system lateral stiffness.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of rail assembly；
Fig. 2 is the flow chart of rail clip system lateral stiffness measurement method provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of fastener system lateral stiffness measuring device provided in an embodiment of the present invention；
Fig. 4 is that first force-applying piece is matched with clamping piece in fastener system lateral stiffness measuring device provided in an embodiment of the present invention
The structural schematic diagram of conjunction；
Fig. 5 be fastener system lateral stiffness measuring device provided in an embodiment of the present invention in pedestal, the first force-applying piece and
The structural schematic diagram of guidance set cooperation.
Icon: 100- push rod；210- rail head；220- rail bottom；310- iron chair；320- resilient sleeper-bearing；330- gauge block；
340- fastener；The first force-applying piece of 411-；412- actuator；413- first clamping member；The second clamping piece of 414-；421- pedestal；
422- force platform；423- third clamping piece；The 4th clamping piece of 424-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
Please refer to Fig. 2:
Rail clip system lateral stiffness measurement method provided in an embodiment of the present invention the following steps are included:
Rail assembly is placed between the first force-applying piece 411 being oppositely arranged and the second force-applying piece, makes the first force-applying piece 411
Act on the one end far from the second force-applying piece of iron chair 310, the second force-applying piece acts on the rail bottom 220 of track far from the first force
One end of part 411；
Make the first force-applying piece 411 and the second force-applying piece jointly by railway clamping；
Observe 320 shear deformation of compression deformation and resilient sleeper-bearing of gauge block 330.
Further, the first force-applying piece 411 is made to act on the one end of iron chair 310 far from the second force-applying piece, specifically:
Clamping piece is arranged towards the end of the second force-applying piece in first force-applying piece 411, and clamping piece is made to clamp the side of iron chair 310
Edge；
As shown in figure 3, clamping piece includes first clamping member 413 and the second clamping piece 414, first clamping member 413 and second
Clamping piece 414 is oppositely arranged, and when pressing using the first force-applying piece 411 to iron chair 310, passes through first clamping member 413 and second
Clamping piece 414 clamps iron chair 310, prevents iron chair 310 and the first force-applying piece 411 from sliding dislocation occurs, it is ensured that Neng Gouwen
Surely the test job of fastener system lateral stiffness is carried out.
Further, the second force-applying piece acts on the rail bottom 220 of track, specifically:
Second force-applying piece includes two and is oppositely arranged force platform 422, end of the iron chair 310 far from the first force-applying piece 411
It is placed between two force platforms 422, the rail bottom 220 of two ends on track length direction is connected to two force platforms respectively
On 422；
The both ends of track in rail assembly extend to outside iron chair 310, extend to the end of the track outside iron chair 310
Ridden on force platform 422 by rail bottom 220, when can guarantee that the first force-applying piece 411 presses to iron chair 310, the two of track
End is able to maintain balance；Simultaneously as the both ends of track extend to outside iron chair 310, rail bottom 220 is held using force platform 422
End, iron chair 310 will not touch force platform 422, it is thus possible to avoid force platform 422 because friction etc. reasons to iron pad
Moving down for plate 310 causes to hinder, and influences the measurement result of rail clip system lateral stiffness.
Further, guide groove, end of the iron chair 310 far from the first force-applying piece 411 are equipped between two force platforms 422
It is snug fit in guide groove, and iron chair 310 and the slot bottom of guide groove are kept at a distance；
Specifically, as shown in figure 5, being relatively set with third clamping piece 423 and the 4th clamping piece 424, third on pedestal 421
Guide groove is collectively formed in clamping piece 423 and the 4th clamping piece 424, and in Fig. 3, the lower end of iron chair 310 is snug fit at
In guide groove between three clamping pieces 423 and the 4th clamping piece 424, very to avoid lower end run-off the straight when the compression of iron chair 310
To toppling over, thus, it help to obtain accurate rail clip system lateral stiffness test result；
Iron chair 310 and the slot bottom of guide groove are kept at a distance, and to prevent iron chair 310 from contacting with the bottom of guide groove, are led
Give iron chair 310 reaction force to the bottom of slot, and the reaction force for the second force-applying piece for causing rail bottom 220 to be subject to reduces, most
Accurate rail clip system lateral stiffness can not be obtained eventually.
Further, make the first force-applying piece 411 and railway clamping is included: by the second force-applying piece jointly
First force-applying piece 411 to close to the second force-applying piece direction to iron chair 310 exert a force, and/or, the second force-applying piece to
Close to the direction of the first force-applying piece 411, the rail bottom 220 to track exerts a force；
Specifically, make the first force-applying piece 411 and the second force-applying piece jointly by railway clamping, include the following three types form:
One kind, the second force-applying piece is motionless, and the first force-applying piece 411 exerts a force to iron chair 310 to the direction close to the second force-applying piece；Second
Kind, the first force-applying piece 411 is motionless, and the second force-applying piece exerts a force to rail bottom 220 of the direction close to the first force-applying piece 411 to track；
The third, the first force-applying piece 411 exerts a force to iron chair 310 to the direction close to the second force-applying piece, and simultaneously, the second force-applying piece to
Close to the direction of the first force-applying piece 411, the rail bottom 220 to track exerts a force.
Further, the first force-applying piece 411 exerts a force to iron chair 310 to the direction close to the second force-applying piece, specifically:
The first force-applying piece 411 is driven to exert a force to the direction of the second force-applying piece to iron chair 310 using linear drives part, it is above-mentioned
Linear drives part can be hydraulic cylinder or cylinder etc.；
Second force-applying piece exerts a force to rail bottom 220 of the direction of the first force-applying piece 411 to track, specifically:
The second force-applying piece is driven to exert a force to rail bottom 220 of the direction of the first force-applying piece 411 to track using linear drives part,
Above-mentioned linear drives part can be hydraulic cylinder or cylinder etc..
Compared with prior art, rail clip system lateral stiffness measurement method provided in an embodiment of the present invention has following
Advantage:
Rail clip system lateral stiffness measurement method provided in an embodiment of the present invention acts on the first force-applying piece 411
The rail bottom 220 of track is acted on far from the first force-applying piece in the one end far from the second force-applying piece of iron chair 310, the second force-applying piece
411 one end, the distance due to rail bottom 220 apart from iron chair 310 are equivalent to the thickness of resilient sleeper-bearing 320, when the second force-applying piece
When exerting a force to rail bottom 220, the arm of force of thrust suffered by rail bottom 220 is almost nil, and track is less likely to occur to topple, therefore, most
Shear-deformable of the resilient sleeper-bearing 320 obtained afterwards influences 320 shearing force of resilient sleeper-bearing by iron chair 310 and rail bottom 220,
So compared with the method for pushing away rail head 210 in the prior art, rail clip system lateral stiffness measurement method provided by the invention
It is more accurate.
Embodiment two
Measuring device provided in an embodiment of the present invention includes: the first force-applying piece 411, the second force-applying piece and actuator 412, and
One force-applying piece 411 and the second force-applying piece are oppositely arranged；
Actuator 412 is for driving the first force-applying piece 411 close or far from the second force-applying piece；
First force-applying piece 411 with iron chair 310 far from one end of the second force-applying piece for abutting；
Second force-applying piece includes at least two force platforms 422, and force platform 422 is used to resist the rail bottom 220 of the end of track.
In the present embodiment, the plate-like structure of the first force-applying piece 411.
Further, the first force-applying piece 411 is equipped with clamping piece towards the second force-applying piece end, and clamping piece includes two opposite
The clamping plate of setting, two clamping plates are used to clamp the edge of iron chair 310.
As shown in figure 3, clamping piece includes first clamping member 413 and the second clamping piece 414, first clamping member 413 and second
The plate-like structure of clamping piece 414, first clamping member 413 and the second clamping piece 414 are oppositely arranged, and utilize the first force-applying piece 411
When pressing to iron chair 310, iron chair 310 is clamped by first clamping member 413 and the second clamping piece 414, prevents iron chair
310 and first force-applying piece 411 occur sliding dislocation, it is ensured that can stablize carry out the test job of fastener system lateral stiffness.
Further, clamping plate is detachably connected with the first force-applying piece 411；
Specifically, first clamping member 413 and the second clamping piece 414 are fixed by bolt and the first force-applying piece 411；When need
When the thickness of the iron chair 310 of rail assembly to be tested changes, 413 He of first clamping member of different-thickness can choose
Second clamping piece 414, for example, can choose relatively thin first clamping member 413 and the second clamping piece when iron chair 310 thickens
414, when iron chair 310 times are thin, it can choose thicker first clamping member 413 and the second clamping piece 414；So that the first clamping
Part 413 and the second clamping piece 414 can be fitted close with iron chair 310.
For the ease of the iron chair 310 of different-thickness can be cooperated between first clamping member 413 and the second clamping piece 414,
It can also be in the following ways:
A plurality of waist type is arranged side by side along the length direction perpendicular to first clamping member 413 in the end face of the first force-applying piece 411
Hole, bolt is slidably connected in waist-shaped hole, and the nut of bolt is located at the side that the first force-applying piece 411 deviates from the second force-applying piece, spiral shell
Bolt runs through first clamping member 413, is cooperated using the free end of nut and bolt, by 413 clamp or release of first clamping member；It needs
When adjusting the gap width between first clamping member 413 and the second clamping piece 414, need to only it looser a bolt, by first clamping member 413
It is adjusted to suitable position along waist-shaped hole, then tightens nut, first clamping member 413 and the first force-applying piece 411 is fixed.
It should be noted that as shown in figure 4, the length of first clamping member 413 is greater than the second clamping piece in the present embodiment
414 length, its object is to: the leftward space of the second clamping piece 414 needs to accommodate fastener 340.
Further, guidance set is equipped between two force platforms 422, guidance set includes two guiding being oppositely arranged
Plate forms guide groove between two guide plates；
Iron chair 310 is snug fit in guide groove.
Specifically, as shown in figure 5, being relatively set with third clamping piece 423 and the 4th clamping piece 424, third on pedestal 421
Guide groove is collectively formed in clamping piece 423 and the 4th clamping piece 424, and in Fig. 3, the lower end of iron chair 310 is snug fit at
In guide groove between three clamping pieces 423 and the 4th clamping piece 424, very to avoid lower end run-off the straight when the compression of iron chair 310
To toppling over, thus, it help to obtain accurate rail clip system lateral stiffness test result.
Further, third clamping piece 423 and the 4th clamping piece 424 are detachably connected with pedestal 421；
Specifically, as shown in figure 5, third clamping piece 423 and the 4th clamping piece 424 are fixed by bolt and pedestal 421；
When needing the thickness of iron chair 310 of rail assembly to be tested to change, the third clamping piece of different-thickness can choose
423 and the 4th clamping piece 424, for example, can choose relatively thin third clamping piece 423 and the 4th folder when iron chair 310 thickens
Gripping member 424 can choose thicker third clamping piece 423 and the 4th clamping piece 424, so that third when iron chair 310 times thin
Clamping piece 423 and the 4th clamping piece 424 can be fitted close with iron chair 310.
It should be noted that as shown in figure 5, the length scale of third clamping piece 423 is in the 4th clamping piece in the present embodiment
424 length, its object is to: the right side of the space of third clamping piece 423 needs to accommodate fastener 340.
For the ease of the iron chair 310 of different-thickness can be cooperated between third clamping piece 423 and the 4th clamping piece 424,
It can also be in the following ways:
A plurality of waist-shaped hole, waist type is arranged side by side along the length direction perpendicular to first clamping member 413 in the end face of pedestal 421
Bolt is slidably connected in hole, the nut of bolt is located at the side that pedestal 421 deviates from the first force-applying piece 411, bolt-through third
Clamping piece 423 is cooperated using the free end of nut and bolt, by 423 clamp or release of third clamping piece；Need to adjust third folder
It when gap width between gripping member 423 and the 4th clamping piece 424, need to only looser a bolt, third clamping piece 423 and the 4th are clamped
Part 424 is adjusted to suitable position along waist-shaped hole, then tightens nut, and third clamping piece 423 and pedestal 421 is fixed.
Compared with prior art, measuring device provided in an embodiment of the present invention has the advantage that
Rail assembly is placed between the first force-applying piece 411 and the second force-applying piece, wherein iron chair 310 is applied along first
The width direction in the gap between power part 411 and the second force-applying piece extends, and the both ends of track extend to 310 outside of iron chair；It is logical
Part 412 of overdriving drives the first force-applying piece 411, it is mobile to the direction of close second force-applying piece to make the first force-applying piece 411, and then make
First force-applying piece 411 abuts with iron chair 310 far from one end of the second force-applying piece, side of the rail bottom 220 far from the first force-applying piece 411
The both ends in face are abutted with force platform 422 (i.e. the second force-applying piece) respectively, manipulate actuator 412 to continue to make the first force-applying piece 411
Pressure is applied to iron chair 310, rail bottom 220 squeezes force platform 422, and force platform 422 generates reaction force, a side to rail bottom 220
Face, rail bottom 220 generate shearing force to resilient sleeper-bearing 320, thus, resilient sleeper-bearing 320 generates shear-deformable, another aspect, rail bottom
220 squeeze gauge block 330 to the direction close to the first force-applying piece 411, and gauge block 330 generates compressive deformation, passes through observation
The compressive deformation of the shear-deformable and gauge block 330 of resilient sleeper-bearing 320 can extrapolate the lateral stiffness of rail clip system；
Using the lateral stiffness of above-mentioned measuring device test tracks fastener system, the both ends that the platform 422 that exerts a force acts on rail bottom 220 can be held in the palm
Firmly rail bottom 220, and the both ends force balance of track is kept, simultaneously as rail bottom 220 is only spaced one between iron chair 310
A resilient sleeper-bearing 320, the platform 422 that exerts a force to the point of application of rail bottom 220 to iron chair 310 apart from very little, therefore suffered by iron chair 310
Tilting moment it is almost nil, rail bottom 220 be not easy overstock resilient sleeper-bearing 320, so resilient sleeper-bearing 320 is shear-deformable not by rail
The influence that bottom 220 squeezes, can obtain eventually by the compressive deformation of the shear-deformable and gauge block 330 of resilient sleeper-bearing 320
Accurate rail clip system lateral stiffness.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of rail clip system lateral stiffness measurement method, which comprises the following steps:
Rail assembly is placed between the first force-applying piece and the second force-applying piece being oppositely arranged, the first force-applying piece is made to act on iron pad
One end far from the second force-applying piece of plate, the second force-applying piece act on the rail bottom of track far from one end of the first force-applying piece；
Make the first force-applying piece and the second force-applying piece jointly by railway clamping；
Observe resilient sleeper-bearing shear deformation under the compression deformation and rail of gauge block.
2. rail clip system lateral stiffness measurement method according to claim 1, which is characterized in that described to make first to apply
Power part acts on the one end of iron chair far from the second force-applying piece, specifically:
Clamping piece is arranged towards the end of the second force-applying piece in first force-applying piece, and the clamping piece is made to clamp the edge of iron chair.
3. rail clip system lateral stiffness measurement method according to claim 1, which is characterized in that second force
Part acts on the rail bottom of track, specifically:
Second force-applying piece includes two and is oppositely arranged force platform, and iron chair is placed in two force platforms far from the end of the first force-applying piece
Between, the rail bottom of two ends on track length direction is connected to respectively on two force platforms.
4. rail clip system lateral stiffness measurement method according to claim 3, which is characterized in that two force platforms it
Between be equipped with guide groove, iron chair is snug fit in guide groove far from the end of the first force-applying piece, and iron chair and guide groove
Slot bottom is kept at a distance.
5. rail clip system lateral stiffness measurement method according to claim 1, which is characterized in that described to make first to apply
Railway clamping is included: by power part and the second force-applying piece jointly
First force-applying piece exerts a force to iron chair to the direction close to the second force-applying piece, and/or, the second force-applying piece is applied to close to first
The direction of power part exerts a force to the rail bottom of track.
6. rail clip system lateral stiffness measurement method according to claim 5, which is characterized in that first force
Part exerts a force to iron chair to the direction close to the second force-applying piece, specifically:
The first force-applying piece is driven to exert a force to the direction close to the second force-applying piece to iron chair using linear drives part；
Second force-applying piece exerts a force to rail bottom of the direction close to the first force-applying piece to track, specifically:
The second force-applying piece is driven to exert a force to rail bottom of the direction close to the first force-applying piece to track using linear drives part.
7. a kind of measuring device characterized by comprising the first force-applying piece, the second force-applying piece and actuator, first force
Part and second force-applying piece are oppositely arranged；
The actuator is for driving first force-applying piece close or far from second force-applying piece；
First force-applying piece with iron chair far from one end of second force-applying piece for abutting；
Second force-applying piece includes at least two force platforms, and the force platform is used to resist the rail bottom at the both ends of track.
8. measuring device according to claim 7, which is characterized in that first force-applying piece is towards second force-applying piece
End is equipped with clamping piece, and the clamping piece includes two clamping plates being oppositely arranged, and two clamping plates are for clamping the iron pad
The edge of plate.
9. measuring device according to claim 8, which is characterized in that the clamping plate detachably connects with first force-applying piece
It connects.
10. measuring device according to claim 7, which is characterized in that guidance set is equipped between two force platforms,
The guidance set includes two guide plates being oppositely arranged, and forms guide groove between two guide plates；
The iron chair is snug fit in the guide groove.
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| CN201811047819.8A CN108982251B (en) | 2018-09-07 | 2018-09-07 | Track fastener system transverse rigidity measuring device and track fastener system transverse rigidity measuring method |
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| CN201811047819.8A CN108982251B (en) | 2018-09-07 | 2018-09-07 | Track fastener system transverse rigidity measuring device and track fastener system transverse rigidity measuring method |
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| CN111982435A (en) * | 2020-09-21 | 2020-11-24 | 西南交通大学 | Transverse rigidity testing device and testing method thereof |
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| CN108982251B (en) | 2020-06-30 |
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