CN106644425B - Comprehensive measuring device for longitudinal, transverse and vertical three-way resistance of steel rail fastener - Google Patents
Comprehensive measuring device for longitudinal, transverse and vertical three-way resistance of steel rail fastener Download PDFInfo
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- CN106644425B CN106644425B CN201610978673.3A CN201610978673A CN106644425B CN 106644425 B CN106644425 B CN 106644425B CN 201610978673 A CN201610978673 A CN 201610978673A CN 106644425 B CN106644425 B CN 106644425B
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- fastener
- steel rail
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 89
- 239000010959 steel Substances 0.000 title claims abstract description 89
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 4
- 241000282537 Mandrillus sphinx Species 0.000 claims 2
- 238000005457 optimization Methods 0.000 description 5
- 241001669679 Eleotris Species 0.000 description 2
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to the technical field of engineering measurement, in particular to a comprehensive measuring device for longitudinal, transverse and vertical resistance of a steel rail fastener. The device comprises a force application assembly for applying vertical and horizontal forces to a steel rail of a track and a displacement measurement assembly for measuring the displacement of the steel rail in the corresponding direction; compared with the prior art, the invention has the advantages that: the invention provides a comprehensive measuring device for the longitudinal, transverse and vertical resistances of a steel rail fastener, which is simple in structure and convenient to operate, and fills the blank that no comprehensive device for measuring the longitudinal, transverse and vertical resistances of the steel rail fastener exists in China at present.
Description
Technical Field
The invention relates to the technical field of engineering measurement, in particular to a comprehensive measuring device for longitudinal, transverse and vertical resistance of a steel rail fastener.
Background
The rail fastener is a connecting part for preventing the rail from vertically and horizontally moving relative to the sleeper, and the resistance of the fastener is an important index for evaluating the performance of the rail fastener. Along with the continuous speed increase of the high-speed railway, the technical performance requirement on the resistance of the steel rail fastener is also continuously improved, the resistance of the steel rail fastener is accurately measured, and the requirements on determining the performance of the steel rail fastener, determining the geometric shape and position of a track, developing normal maintenance and repair and ensuring the driving safety are met.
However, at present, no device capable of conveniently and accurately measuring the longitudinal, transverse and vertical resistances of the steel rail fastener exists in China.
Disclosure of Invention
The invention aims to provide a comprehensive measuring device for the longitudinal, transverse and vertical resistance of a steel rail fastener.
The purpose of the invention is realized by the following ways: a rail fastener longitudinal, transverse and vertical resistance comprehensive measuring device comprises a force application assembly for applying longitudinal, transverse and vertical forces to a rail of a track and a displacement measuring assembly for measuring displacement of the rail in a corresponding direction;
the force application assembly comprises a transverse fastener resistance measurement assembly, a longitudinal fastener resistance measurement assembly and a fastener vertical resistance measurement assembly which are arranged on the base;
the assembly for measuring the resistance of the transverse fastener is characterized in that a sleeve with a built-in telescopic driving piece and a force measuring sensor for detecting the transverse horizontal force borne by the ejector rod is arranged on the base, and an ejector sleeve is connected between the sleeve and a supporting member for clamping the steel rail; two ends of the telescopic driving piece are respectively provided with an ejector rod driven by the telescopic driving piece, the two ejector rods extend out of two ends of the sleeve, one ejector rod is sleeved in the ejector cylinder, the other ejector rod abuts against the ejector block, and the ejector block is positioned on one side of the vertical plate at the end part of the fixed base;
the assembly for measuring the vertical resistance of the fastener is characterized in that a steel rail is transversely arranged on a base through the fastener, a supporting plate is embedded above the steel rail, a top plate stretching across the steel rail is arranged below the supporting plate, and a telescopic driving piece and a force measuring sensor for detecting the vertical force applied to the steel rail are arranged between the supporting plate and the top plate;
the assembly for measuring the resistance of the longitudinal fastener is characterized in that a steel rail is longitudinally arranged on a base through a fastener, an extended threaded steel bar is fixed at the end part of the steel rail, the threaded steel bar penetrates through a vertical plate through a square hole in the vertical plate, a nut is arranged at the other end of the vertical plate, a telescopic driving piece and a force measuring sensor for detecting the longitudinal force applied to the threaded steel bar are arranged between the vertical plate and the nut.
As a further optimization of the scheme:
the telescopic driving part comprises a hydraulic jack and a hydraulic manual pump for driving the hydraulic jack, and in the transverse fastener resistance measuring component, one end of the hydraulic jack abuts against the inner wall of the sleeve, and the other end of the hydraulic jack abuts against the ejector rod through a force measuring sensor; in the fastener longitudinal resistance measuring assembly, one end of the hydraulic jack is abutted against the other jacking block, and the other end of the hydraulic jack is abutted against the vertical plate through a force measuring sensor; in the vertical resistance component of the measuring fastener, one end of the hydraulic jack is propped against the supporting plate, and the other end of the hydraulic jack is propped against the top plate through the force measuring sensor.
As a further optimization of the scheme, the displacement measuring assembly is a dial indicator, and the dial indicator comprises a measuring probe, a measuring rod and a reading display screen.
As a further optimization of the scheme, the sleeve comprises an installation cylinder and a contact hole connected to the device in the installation cylinder, the force measuring sensor and the hydraulic jack are arranged in the installation cylinder, and an opening used for assembling and disassembling the force measuring sensor and the hydraulic jack is formed in the side wall of the installation cylinder.
As a further optimization of the scheme, the fastener is characterized in that a base plate is arranged below the steel rail, a square base plate is arranged below the base plate, and the fastener is fixed on the base through bolts.
As a further optimization of the solution, the load cell is equipped with a reading gauge.
Compared with the prior art, the invention has the advantages that: the invention provides a comprehensive measuring device for the longitudinal, transverse and vertical resistances of a steel rail fastener, which is simple in structure and convenient to operate, and fills the blank that no comprehensive device for measuring the longitudinal, transverse and vertical resistances of the steel rail fastener exists in China at present.
Drawings
The invention is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a second schematic perspective view of the present invention;
FIG. 3 is a schematic structural view showing a state of use of the transverse fastener resistance measuring assembly of the present invention;
FIG. 4 is a structural view of the vertical resistance component of the fastener in use according to the present invention;
FIG. 5 is a schematic view of the structure of the longitudinal fastener resistance measuring assembly of the present invention in use (90 degree turn);
FIG. 6 is a perspective view of the sleeve of the present invention;
FIG. 7 is a schematic perspective view of a load cell according to the present invention;
FIG. 8 is a schematic perspective view of a hydraulic jack according to the present invention;
FIG. 9 is a schematic perspective view of a dial indicator according to the present invention;
in the figure:
1. a base; 2. a sleeve; 3. a top rod; 4. a steel rail; 5. a support member; 6. a top block; 7. twisted steel bars; 8. a nut; 9. a support plate; 10. a top plate; 11. a vertical plate; 01. a force sensor; 02. a hydraulic jack; 03. a hydraulic manual pump; 04. a dial indicator; 05. a support; 06. a fastener; 07. triangular steel; 011. a first bottom surface; 012. a sensing surface; 013. a reading instrument; 021. a working surface; 022. a second bottom surface; 041. a measurement probe; 042. a measuring rod; 043. a reading display screen; 111. a circular hole; 112. a square hole; 121. a long bolt; 21. mounting the cylinder; 211. an opening; 31. a top cylinder; 061. a fastener backing plate; 062. a bolt; 063. square base plate
Detailed Description
As shown in fig. 1 to 9, the sleeper fastener comprehensive longitudinal, transverse and vertical resistance measuring device of the present invention includes a force application component for applying longitudinal, transverse and vertical forces to a rail of a track and a displacement measurement component for measuring displacement of the rail in a corresponding direction;
the force application assembly comprises a transverse fastener resistance measurement assembly, a longitudinal fastener resistance measurement assembly and a fastener vertical resistance measurement assembly which are arranged on the base 1;
the assembly for measuring the resistance of the transverse fastener is characterized in that a sleeve 2 with a built-in telescopic driving piece and a force measuring sensor 01 for detecting the transverse horizontal force borne by a top rod 3 is arranged on a base 1, and a top cylinder 31 is connected between the sleeve 2 and a supporting member 5 for clamping a steel rail 4; two ends of the telescopic driving piece are respectively provided with a top rod 3 driven by the telescopic driving piece, the two top rods 3 extend out of two ends of the sleeve 2, one top rod 3 is sleeved in the top cylinder 31, the other top rod 3 is abutted against the top block 6, and the top block 6 is positioned on one side of the vertical plate 11 at the end part of the fixed base 1; before the work starts, the base 1 is fixed on the ground by using the bolt 121 through the circular hole 111, the working surface 021 of the hydraulic jack 02 is tightly attached to the first bottom surface 011 of the load cell 01, the second bottom surface 022 of the hydraulic jack 02 is tightly attached to the inner wall surface of the sleeve 2, and the sensing surface 012 of the load cell 01 is tightly attached to the end of the top rod 3 of the supporting member 5. The dial indicator 04 is mounted on the web surface of the rail 4 in the transverse direction, and the bracket 05 on which the dial indicator 04 is mounted is sucked on the triangular steel 07. The load cell 01 is a load cell equipped with a reading instrument, the reading instrument is matched with the load cell 01 for use, when the hydraulic jack 02 works to apply a transverse horizontal force to the ejector rod 3, the transverse horizontal force can be directly read out from the reading instrument of the load cell 01, and the reading is convenient and accurate. The driving force of the hydraulic jack 02 can be controlled by operating the hydraulic manual pump 03 and combining with a reading instrument of the force measuring sensor 01, so that the transverse horizontal force applied to the steel rail is controlled, and the transverse horizontal force borne by the steel rail is equal to the transverse horizontal force applied to the jacking rod 3 by the hydraulic jack 02. When the transverse horizontal force gradually increased from zero is applied to the steel rail at the beginning of working, and when the transverse horizontal force with different magnitude borne by the steel rail is measured, the transverse displacement of the steel rail can be measured by the dial indicator 04 and displayed on the reading display screen 043 of the dial indicator 04. When the change of the reading number on the reading instrument is suddenly large when the hydraulic manual pump 03 is operated, the transverse force and the displacement in a period of time are recorded, and the transverse resistance of the steel rail fastener can be obtained through drawing a displacement-force curve chart and analyzing, namely the transverse resistance is a special corresponding value of the transverse force applied to the steel rail.
The vertical resistance component of the fastener is characterized in that a steel rail 4 is transversely installed on a base 1 through a fastener 06, a supporting plate 9 is embedded above the steel rail 4, a top plate 10 stretching across the steel rail 4 is placed below the supporting plate 9, and a telescopic driving piece and a force measuring sensor 01 for detecting the vertical force borne by the steel rail 4 are installed between the supporting plate 9 and the top plate 10; when the device is used, the base 1 is installed and fixed, the hydraulic jack 02 is installed between the supporting plate 9 and the top plate 10, the force measuring sensor 01 is installed between the hydraulic jack 02 and the top plate 10, the dial indicator 04 is installed on the surface of the rail head 4 of the steel rail in the vertical direction, and the support 05 provided with the dial indicator 04 is sucked on the triangular steel 07. The load cell is the load cell that has the reading appearance, and the reading appearance uses with the load cell is supporting, when hydraulic jack 02 worked and applyed vertical force to roof 10, can directly read out the size of this vertical force on the reading appearance of load cell, and its reading is convenient, and the precision is high. The driving force of the hydraulic jack 02 can be controlled by operating the hydraulic manual pump 03 and combining with a reading instrument of the force measuring sensor 01, so that the vertical force applied to the steel rail is controlled, and the vertical force borne by the steel rail is equal to the vertical force applied to the jacking block 6 by the hydraulic jack 02. When the vertical force gradually increasing from zero is applied to the steel rail during working, and the vertical displacement of the steel rail is measured when the vertical force with different magnitude borne by the steel rail is measured, and the vertical displacement of the steel rail can be measured through the dial indicator 04 and displayed on the reading display screen 043 of the dial indicator 04. When the reading on the reading instrument tends to be stable when the hydraulic manual pump 03 is operated, the force on the display and the displacement displayed on the dial indicator are recorded, the longitudinal force and the displacement within a period of time are recorded when the applied force to the steel rail is suddenly not changed obviously along with the continuous increase of the displacement, the relation curve of the force and the displacement is drawn, then the vertical resistance of the steel rail fastener can be obtained through analysis, and the vertical resistance is the special corresponding value of the vertical force applied to the steel rail.
The assembly for measuring the resistance of the longitudinal fastener is characterized in that a steel rail 4 is longitudinally arranged on a base 1 through a fastener 06, an extended threaded steel bar 7 is fixed at the end part of the steel rail 4, the threaded steel bar 7 penetrates through a vertical plate 11 through a square hole 121 in the vertical plate 11, a nut 8 is arranged at the other end, located on the vertical plate 11, of the threaded steel bar 7, and a telescopic driving piece and a force measuring sensor 01 for detecting the longitudinal force applied to the threaded steel bar 7 are arranged between the vertical plate 11 and the nut 8. Before work begins, the base 1 is fixed on the field through the round hole 111 by using the bolt 121, the working surface 021 of the hydraulic jack 02 is tightly attached to the first bottom surface 011 of the load cell 01, the second bottom surface 022 of the hydraulic jack 02 is tightly attached to the top block 6, and the sensing surface 012 of the load cell 01 is tightly attached to the vertical plate 11. The dial indicator 04 is installed on the rail head section of the steel rail 4 in the longitudinal direction, and a bracket 05 for installing the dial indicator 04 is sucked on the triangular steel 07. The load cell 01 is a load cell equipped with a reading instrument, the reading instrument is matched with the load cell 01 for use, when the hydraulic jack 02 works to apply a longitudinal horizontal force to the top block 6, the size of the longitudinal horizontal force can be directly read on the reading instrument of the load cell 01, and the reading is convenient and accurate. The driving force of the hydraulic jack 02 can be controlled by operating the hydraulic manual pump 03 and combining with a reading instrument of the force measuring sensor 01, so that the longitudinal horizontal force applied to the steel rail is controlled, and the longitudinal horizontal force borne by the steel rail is equal to the transverse horizontal force applied to the jacking block 6 by the hydraulic jack 02. When the vertical displacement measuring instrument works, longitudinal horizontal force which is gradually increased from zero is applied to the steel rail, and when the longitudinal horizontal force with different magnitude borne by the steel rail is measured, the longitudinal displacement of the steel rail can be measured through the dial indicator 04 and displayed on the reading display screen 043 of the dial indicator 04. When the reading number on the reading instrument is not changed when the hydraulic manual pump 03 is operated, the constraint action of the fastener on the steel rail tends to zero, the longitudinal force and displacement in a period of time are recorded, and then the longitudinal resistance of the steel rail fastener can be obtained through drawing analysis, namely the special corresponding value of applying the longitudinal force on the steel rail.
The telescopic driving member comprises a hydraulic jack 02 and a hydraulic manual pump 03 for driving the hydraulic jack 02, and for measuring the resistance component of the transverse fastener: one end of the hydraulic jack 02 abuts against the inner wall of the sleeve 2, and the other end of the hydraulic jack abuts against the ejector rod 3 through the force transducer 01; for the measuring fastener longitudinal resistance assembly: one end of the hydraulic jack 02 abuts against the top block 6, the other end of the hydraulic jack abuts against the vertical plate 11 through a force transducer 01, and the hydraulic jack is screwed tightly through a nut; for a measuring fastener vertical resistance assembly: one end of the hydraulic jack 02 abuts against the supporting plate 9, and the other end of the hydraulic jack abuts against the top plate 10 through the force measuring sensor 01.
The displacement measurement assembly is a dial indicator 04, and the dial indicator 04 comprises a measurement probe 041, a measurement rod 042 and a reading display screen 043.
The sleeve 2 comprises an installation cylinder 21 and a contact hole connected to the inside of the installation cylinder 21, the load cell 01 and the hydraulic jack 02 are installed in the installation cylinder 21, and an opening 211 for assembling and disassembling the load cell 01 and the hydraulic jack 02 is formed in the side wall of the installation cylinder 21.
The fastener 06 is provided with a base plate 061 below the steel rail 4, a square base plate 063 below the base plate 061, the fastener is fixed on the base 1 by a bolt 062, and the square base plate 063 plays a role in balancing the steel rail; the longitudinal and transverse steering of the rail on the foundation 1 can be realized by the fastener system.
The load cell 01 is equipped with a reader 013.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be made by those skilled in the art without inventive work within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides a rail fastener is indulged horizontal vertical three-dimensional resistance and is synthesized measuring device which characterized in that: the device comprises a force application assembly for applying vertical and horizontal forces to a steel rail of a track and a displacement measurement assembly for measuring the displacement of the steel rail in the corresponding direction; the force application assembly comprises a transverse fastener resistance measurement assembly, a longitudinal fastener resistance measurement assembly and a fastener vertical resistance measurement assembly which are arranged on the base (1);
the assembly for measuring the resistance of the transverse fastener is characterized in that a sleeve (2) which is internally provided with a telescopic driving piece and a force measuring sensor (01) for detecting the transverse horizontal force borne by a top rod (3) is arranged on a base (1), and a top cylinder (31) is connected between the sleeve (2) and a supporting member (5) for clamping a steel rail (4); two ends of the telescopic driving piece are respectively provided with a mandril (3) driven by the telescopic driving piece, the two mandrils (3) extend out of two ends of the sleeve (2), one mandrill (3) is sleeved in the jacking cylinder (31), the other mandrill (3) is abutted against the jacking block (6), and the jacking block (6) is positioned on one side of the vertical plate (11) at the end part of the base (1);
the fastener vertical resistance measuring component is characterized in that a steel rail (4) is transversely installed on a base (1) through a fastener (06), a supporting plate (9) is embedded above the steel rail (4), a top plate (10) stretching across the steel rail (4) is placed below the supporting plate (9), and a telescopic driving piece and a force measuring sensor (01) used for detecting the vertical force borne by the steel rail (4) are installed between the supporting plate (9) and the top plate (10);
the assembly for measuring the resistance of the longitudinal fastener is characterized in that a steel rail (4) is longitudinally arranged on a base (1) through a fastener (06), an extended threaded steel bar (7) is fixed at the end part of the steel rail (4), the threaded steel bar (7) penetrates through a vertical plate (11) through a square hole (121) in the vertical plate (11), the threaded steel bar (7) is positioned at the other end of the vertical plate (11) and is provided with a nut (8), and a telescopic driving piece and a force measuring sensor (01) for detecting the longitudinal force borne by the threaded steel bar (7) are arranged between the vertical plate (11) and the nut (8); the telescopic driving piece comprises a hydraulic jack (02) and a hydraulic manual pump (03) for driving the hydraulic jack (02), in the fastener transverse resistance measuring assembly, one end of the hydraulic jack (02) abuts against the inner wall of the sleeve (2), and the other end of the hydraulic jack abuts against the ejector rod (3) through a force measuring sensor (01); in the fastener longitudinal resistance measuring assembly, one end of the hydraulic jack (02) is abutted against the top block (6), and the other end of the hydraulic jack is abutted against the vertical plate (11) through a force measuring sensor (01); in the vertical resistance component of the measuring fastener, one end of the hydraulic jack (02) is propped against the support plate (9), and the other end of the hydraulic jack is propped against the top plate (10) through a force measuring sensor (01); the force measuring sensor (01) is provided with a reading instrument (013); a base plate (061) is arranged below the steel rail (4), a square base plate (063) is arranged below the base plate (061), the fastener (06), the base plate (061) and the square base plate (063) form a fastener system, and the fastener system is fixed on the base (1) through bolts (062); the longitudinal and transverse steering of the steel rail on the base (1) can be realized through the fastener system.
2. The comprehensive measuring device for the longitudinal, transverse and vertical resistances of the steel rail fastener according to claim 1 is characterized in that: the displacement measurement assembly is a dial indicator (04), and the dial indicator (04) comprises a measurement probe (041), a measurement rod (042) and a reading display screen (043).
3. The comprehensive measuring device for the longitudinal, transverse and vertical resistances of the steel rail fastener according to claim 1 is characterized in that: the sleeve (2) comprises an installation cylinder (21) and a contact hole connected to the device in the installation cylinder (21), the load cell (01) and the hydraulic jack (02) are installed in the installation cylinder (21), and an opening (211) used for assembling and disassembling the load cell (01) and the hydraulic jack (02) is formed in the side wall of the installation cylinder (21).
4. The comprehensive measuring device for the longitudinal, transverse and vertical resistances of the steel rail fastener according to claim 1 is characterized in that: the load cell (01) is provided with a reader (013).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610978673.3A CN106644425B (en) | 2016-10-27 | 2016-10-27 | Comprehensive measuring device for longitudinal, transverse and vertical three-way resistance of steel rail fastener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610978673.3A CN106644425B (en) | 2016-10-27 | 2016-10-27 | Comprehensive measuring device for longitudinal, transverse and vertical three-way resistance of steel rail fastener |
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| Publication Number | Publication Date |
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| CN106644425A CN106644425A (en) | 2017-05-10 |
| CN106644425B true CN106644425B (en) | 2019-12-20 |
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| CN201610978673.3A Expired - Fee Related CN106644425B (en) | 2016-10-27 | 2016-10-27 | Comprehensive measuring device for longitudinal, transverse and vertical three-way resistance of steel rail fastener |
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| CN107121275B (en) * | 2017-06-13 | 2018-03-30 | 石家庄铁道大学 | Rail fastening integration test experimental facilities |
| CN108458863B (en) * | 2018-03-22 | 2023-12-22 | 中南大学 | Rail longitudinal reciprocating loading simulation experiment device |
| CN108982251B (en) * | 2018-09-07 | 2020-06-30 | 西南交通大学 | Track fastener system transverse rigidity measuring device and track fastener system transverse rigidity measuring method |
| CN109269789B (en) * | 2018-10-30 | 2020-08-04 | 中南大学 | Fastener and sleeper integrated experimental loading device |
| CN109468900B (en) * | 2019-01-02 | 2023-10-24 | 中南大学 | Rail joint, interval iron and limiter longitudinal resistance comprehensive measurement device |
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| CN106644425A (en) | 2017-05-10 |
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