CN103940673A - Longitudinal tensile and compression testing machine for steel rail of railway track - Google Patents
Longitudinal tensile and compression testing machine for steel rail of railway track Download PDFInfo
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- CN103940673A CN103940673A CN201410130594.8A CN201410130594A CN103940673A CN 103940673 A CN103940673 A CN 103940673A CN 201410130594 A CN201410130594 A CN 201410130594A CN 103940673 A CN103940673 A CN 103940673A
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Abstract
The invention relates to a longitudinal tensile and compression testing machine for a steel rail of a railway track and belongs to mechanical performance testing devices for a metal material or parts. The longitudinal tensile and compression testing machine mainly comprises two sets of railway steel rail longitudinal tensile and compression testing machine main engines as well as corresponding clamps, hydraulic power packs, servo control valves, test force, piston displacement, steel rail deformation sensors, loaded frameworks (or basis counter-force) and industrial control computer measurement and control software systems. By utilizing the testing machine, a double-strand or single-strand railway track steel rail matter test piece with a certain length can be subjected to all-around high-pressure forced clamping simultaneously through a steel rail head clamp jaw, a rail bottom clamp jaw, a left steel rail web clamp jaw and a right steel rail web clamp jaw in four directions, the steel rail is longitudinally tensioned and compressed by a main oil cylinder piston rod at one end of the main engine controlled by a computer through the clamps, acquisition and processing of test data and test curve are carried out, stress and deformation conditions of the railway steel rail under the condition of thermal expansion and cold shrinkage are simulated, and the jaws can also be changed according to different railway steel rail specifications and models.
Description
Technical field
The present invention relates to testing machine field, formed the specifically longitudinal tensile and compression testing machine of a kind of railroad track rail by the longitudinal tensile and compression testing machine main frame of two cover railway tracks and corresponding fixture, hydraulic power unit, pilot valve, test force, piston displacement, deformation of rail sensor, loading frame (or counter-force basis), industrial control computer machine TT&C software system etc.
Background technology
Railroad track is made up of two parallel rail conventionally, and rail is arranged on sleeper by rail fastener system, is road-metal or fragment-free track slab under sleeper.Railroad track is bearing diverse vertical, laterally, longitudinal static load and dynamic loading, load passes to roadbed from railway track by sleeper and railway roadbed again, in order to ensure the basic life-span of railroad track, the mechanical property of test railroad track, need to carry out laboratory simulation detection to railroad track, analysis and research are under various load-up conditions, the stress and strain that railway track produces, thereby determine its load-bearing capacity and stability, do not have at present a kind of equipment to carry out longitudinal mechanical property test to railroad track parallel steel rails material object, small-sized material test equipment is owing to cannot rail test specimen in kind being tested, adopt the method for testing that intercepts standard metal material sample from rail, cause experimental data can not accurately reflect railroad track mechanics property of rail comprehensively, therefore need a kind of large-scale railroad track rail test machine, and this kind equipment not in the market.
Summary of the invention
For above-mentioned deficiency, the invention provides the longitudinal tensile and compression testing machine of a kind of railroad track rail.
The present invention is achieved by the following technical solutions: the longitudinal tensile and compression testing machine of a kind of railroad track rail is by rail, front crank, front adjusting screw(rod), front nut, front shoe, pillar, angle sheave, web of the rail clamping cylinder, back nut, after-poppet, rear crank, rear adjusting screw(rod), rear bearing sheet, master cylinder, clamp nut, oil cylinder seat, rail head clamping cylinder, mobile clamping seats, power sensor, the web of the rail clamps bearing, flange of rail jaw seat, flange of rail clamping claw, rail head clamping claw, rail head clamping claw seat, front bearing, main frame fixation clip, base plate, web of the rail clamping claw front stall, web of the rail front clamp jaw, clamping claw after the web of the rail, web of the rail clamping claw back seat, flange of rail jaw pressing plate, rail head jaw pressing plate, rail head clamping piston bar, web of the rail clamping cylinder seat composition, it is characterized in that: front crank is connected with front adjusting screw(rod) one end, front nut is on front conciliation screw rod, front bearing is connected with the front adjusting screw(rod) other end, front bearing is connected with front shoe, front shoe is connected with base plate, front bearing and front shoe are fixed briquetting by main frame and are linked together, between front bearing and oil cylinder seat, there are four pillars, angle sheave is fixed on mobile clamping seats, angle sheave by moving forward and backward the location and the guiding that realize mobile clamping seats on pillar, web of the rail clamping cylinder is fixed on mobile clamping seats and with web of the rail clamping claw back seat and is connected by web of the rail clamping cylinder seat in mobile clamping seats one side, clamping claw after the web of the rail is installed in web of the rail clamping claw back seat, opposite side web of the rail front clamp jaw at mobile clamping seats is arranged in web of the rail clamping claw front stall, web of the rail clamping claw front stall clamps bearing with the web of the rail and is connected, the web of the rail clamps bearing and is fixed on mobile clamping seats, rear crank is connected with rear adjusting screw(rod) one end, back nut is on rear adjusting screw(rod), oil cylinder seat is connected with rear adjusting screw(rod), after-poppet supports rear bearing sheet, after-poppet is fixed on to be installed on basis, clamp nut is fixed pillar and oil cylinder seat, main oil is fixed on oil cylinder seat and by piston rod and is connected with power sensor, power sensor is connected with rail by mobile clamping seats, rail head clamping cylinder is bolted on mobile clamping seats and by rail head clamping piston bar and is connected with rail head clamping claw seat, rail head clamping claw is arranged in rail head clamping claw seat, rail head jaw pressing plate is fixed on rail head clamping claw on rail head clamping claw seat, flange of rail jaw seat is fixed in the groove of mobile clamping seats bottom, flange of rail clamping claw is arranged in flange of rail jaw seat, flange of rail jaw pressing plate is fixed on flange of rail clamping claw in flange of rail jaw seat.
When the longitudinal tensile and compression testing machine of described a kind of railroad track rail is installed, the rail tensile and compression testing machine main frame in left side is fixed on testing laboratory's counter force wall (or steel reaction frame) by front shoe, the rail tensile and compression testing machine on right side fixes to clamp seat and is also fixed on counter force wall (or steel reaction frame) above by front shoe, and the seat that fixes to clamp on right side does not have power sensor.
The described longitudinal tensile and compression testing machine of a kind of railroad track rail is in the time carrying out rail tension and compression test, web of the rail clamping cylinder and rail head clamping cylinder by web of the rail front clamp jaw, the web of the rail after two-way pressure clamping and the pressure of respectively rail being carried out to level and vertical direction of clamping claw and flange of rail clamping claw, rail head clamping claw unclamp, the work of rail head clamping cylinder makes rail head clamping claw and flange of rail clamping claw that rail is clamped up and down and be unclamped, and after the work of web of the rail clamping cylinder makes web of the rail front clamp jaw and the web of the rail, clamping claw carries out web of the rail clamping and unclamps rail.
After described flange of rail clamping claw, rail head clamping claw, web of the rail front clamp jaw, the web of the rail, clamping claw can be changed according to different railway track specifications and models.
This testing machine can be forced to clamp by rail head of rail clamping claw, flange of rail clamping claw, the omnibearing high pressure of left and right steel rail web clamping claw four direction to the bifilar of certain length or sub-thread railroad track rail test specimen in kind simultaneously, the main oil cylinder piston bar of computer control main frame one end carries out longitudinal stretching, compression by fixture to rail, and carry out the acquisition process of test figure, trial curve, the stressed and deformation of simulation railway track in the situations such as rising-heat contracting-cold.
The usefulness of this invention is: can force to clamp by rail head of rail clamping claw, flange of rail clamping claw, the omnibearing high pressure of left and right steel rail web clamping claw four direction to the bifilar of certain length or sub-thread railroad track rail test specimen in kind simultaneously, the main oil cylinder piston bar of computer control main frame one end carries out longitudinal stretching, compression by fixture to rail, and carry out the acquisition process of test figure, trial curve, the stressed and deformation of simulation railway track in the situations such as rising-heat contracting-cold.
Brief description of the drawings
Fig. 1 is the structural drawing of the longitudinal tensile and compression testing machine of a kind of railroad track rail; Fig. 2 is the front view of the longitudinal tensile and compression testing machine of a kind of railroad track rail; Fig. 3 is the rail clamping device cut-away view of the longitudinal tensile and compression testing machine of a kind of railroad track rail; Fig. 4 is the left side testing machine main frame installation diagram of the longitudinal tensile and compression testing machine of a kind of railroad track rail; Fig. 5 is that the right side of the longitudinal tensile and compression testing machine of a kind of railroad track rail fixes to clamp an installation diagram.
In figure: 1, rail, 2, front crank, 3, front adjusting screw(rod), 4, front nut, 5, front shoe, 6, pillar, 7, angle sheave, 8, web of the rail clamping cylinder, 9, back nut, 10, after-poppet, 11, rear crank, 12, rear adjusting screw(rod), 13, rear bearing sheet, 14, master cylinder, 15, clamp nut, 16, oil cylinder seat, 17, rail head clamping cylinder, 18, mobile clamping seats, 19, power sensor, 20, the web of the rail clamps bearing, 21, flange of rail jaw seat, 22, flange of rail clamping claw, 23, rail head clamping claw, 24, rail head clamping claw seat, 25, front bearing, 26, main frame fixation clip, 27, base plate, 28, web of the rail clamping claw front stall, 29, web of the rail front clamp jaw, 30, clamping claw after the web of the rail, 31, web of the rail clamping claw back seat, 32, flange of rail jaw pressing plate, 33, rail head jaw pressing plate, 34, rail head clamping piston bar, 35, web of the rail clamping cylinder seat.
Embodiment
The longitudinal tensile and compression testing machine of a kind of railroad track rail is by rail 1, front crank 2, front adjusting screw(rod) 3, front nut 4, front shoe 5, pillar 6, angle sheave 7, web of the rail clamping cylinder 8, back nut 9, after-poppet 10, rear crank 11, rear adjusting screw(rod) 12, rear bearing sheet 13, master cylinder 14, clamp nut 15, oil cylinder seat 16, rail head clamping cylinder 17, mobile clamping seats 18, power sensor 19, the web of the rail clamps bearing 20, flange of rail jaw seat 21, flange of rail clamping claw 22, rail head clamping claw 23, rail head clamping claw seat 24, front bearing 25, main frame fixation clip 26, base plate 27, web of the rail clamping claw front stall 28, web of the rail front clamp jaw 29, clamping claw 30 after the web of the rail, web of the rail clamping claw back seat 31, flange of rail jaw pressing plate 32, rail head jaw pressing plate 33, rail head clamping piston bar 34, web of the rail clamping cylinder seat 35 forms, it is characterized in that: front crank 2 is connected with front adjusting screw(rod) 3 one end, front nut 4 is on front conciliation screw rod 3, front bearing 25 is connected with front adjusting screw(rod) 3 other ends, front bearing 25 is connected with front shoe 5, front shoe 5 is connected with base plate 27, front bearing 25 is fixed briquetting 26 with front shoe 5 by main frame and is linked together, between front bearing 25 and oil cylinder seat 16, there are four pillars 6, angle sheave 7 is fixed on mobile clamping seats 18, angle sheave 7 by moving forward and backward the location and the guiding that realize mobile clamping seats 18 on pillar 6, web of the rail clamping cylinder 8 is fixed on mobile clamping seats 18 and with web of the rail clamping claw back seat 31 and is connected by web of the rail clamping cylinder seat 35 in mobile clamping seats 18 1 sides, clamping claw 30 after the web of the rail is installed in web of the rail clamping claw back seat 31, opposite side web of the rail front clamp jaw 29 at mobile clamping seats 18 is arranged in web of the rail clamping claw front stall 28, web of the rail clamping claw front stall 28 clamps bearing 20 with the web of the rail and is connected, the web of the rail clamps bearing 20 and is fixed on mobile clamping seats 18, rear crank 11 is connected with rear adjusting screw(rod) 12 one end, back nut 9 is on rear adjusting screw(rod) 12, oil cylinder seat 16 is connected with rear adjusting screw(rod) 12, after-poppet 10 supports rear bearing sheet 13, after-poppet 10 is fixed on to be installed on basis, clamp nut 15 is fixing with oil cylinder seat 16 by pillar 6, master cylinder 14 is fixed on oil cylinder seat 16 and be connected with power sensor 19 by piston rod, power sensor 19 is connected with rail 1 by mobile clamping seats 18, rail head clamping cylinder 17 is bolted on mobile clamping seats 18 and by rail head clamping piston bar 34 and is connected with rail head clamping claw seat 24, rail head clamping claw 23 is arranged in rail head clamping claw seat 24, rail head jaw pressing plate 33 is fixed on rail head clamping claw 23 on rail head clamping claw seat 24, flange of rail jaw seat 21 is fixed in the groove of mobile clamping seats 18 bottoms, flange of rail clamping claw 22 is arranged in flange of rail jaw seat 21, flange of rail jaw pressing plate 32 is fixed on flange of rail clamping claw 22 in flange of rail jaw seat 21.
When the longitudinal tensile and compression testing machine of described a kind of railroad track rail is installed, the rail tensile and compression testing machine main frame in left side is fixed on testing laboratory's counter force wall (or steel reaction frame) by front shoe 5, the rail tensile and compression testing machine on right side fixes to clamp seat and is also fixed on counter force wall (or steel reaction frame) above by front shoe 5, and the seat that fixes to clamp on right side does not have power sensor.
The described longitudinal tensile and compression testing machine of a kind of railroad track rail is in the time carrying out rail 1 tension and compression test, web of the rail clamping cylinder 8 and rail head clamping cylinder 17 are by web of the rail front clamp jaw 29, clamping claw 30 and flange of rail clamping claw 22 after the web of the rail, two-way pressure clamping and pressure that rail head clamping claw 23 carries out level and vertical direction to rail 1 are respectively unclamped, 17 work of rail head clamping cylinder make rail head clamping claw 23 and flange of rail clamping claw 22 that rail 1 is clamped up and down and be unclamped, after 8 work of web of the rail clamping cylinder make web of the rail front clamp jaw 29 and the web of the rail, clamping claw 30 carries out web of the rail clamping and unclamps rail 1.
After described flange of rail clamping claw 22, rail head clamping claw 23, web of the rail front clamp jaw 29, the web of the rail, clamping claw 30 can be changed according to different railway track specifications and models.
When this equipment work, need to be by railway track 1, first put fixing to clamp in bearing of right side into, then the rail other end is put into the rail tensile and compression testing machine host mobility clamping seats in left side, then by the clamping cylinder at computer control two ends, by clamping claw, rail is carried out two-way pressure clamping and unclamped, controlling rail head clamping cylinder 17 clamps rail 1 up and down together with rail head clamping claw 23 and flange of rail clamping claw 22, control web of the rail clamping cylinder 8 by web of the rail clamping claw seat 31 and web of the rail front clamp jaw 29, after the web of the rail, clamping claw 30 carries out left and right clamping to rail, after four direction all clamps, computing machine stretches by the master cylinder 14 of the rail tensile and compression testing machine main frame in pilot valve control left side, compression test, then by power sensor 19, piston displacement sensor, deformation of rail sensor is delivered to computing machine by data and carries out acquisition process analysis, and provide test report.
Claims (4)
1. the longitudinal tensile and compression testing machine of railroad track rail, is by rail, front crank, front adjusting screw(rod), front nut, front shoe, pillar, angle sheave, web of the rail clamping cylinder, back nut, after-poppet, rear crank, rear adjusting screw(rod), rear bearing sheet, master cylinder, clamp nut, oil cylinder seat, rail head clamping cylinder, mobile clamping seats, power sensor, the web of the rail clamps bearing, flange of rail jaw seat, flange of rail clamping claw, rail head clamping claw, rail head clamping claw seat, front bearing, main frame fixation clip, base plate, web of the rail clamping claw front stall, web of the rail front clamp jaw, clamping claw after the web of the rail, web of the rail clamping claw back seat, flange of rail jaw pressing plate, rail head jaw pressing plate, rail head clamping piston bar, web of the rail clamping cylinder seat composition, it is characterized in that: front crank is connected with front adjusting screw(rod) one end, front nut is on front conciliation screw rod, front bearing is connected with the front adjusting screw(rod) other end, front bearing is connected with front shoe, front shoe is connected with base plate, front bearing and front shoe are fixed briquetting by main frame and are linked together, between front bearing and oil cylinder seat, there are four pillars, angle sheave is fixed on mobile clamping seats, angle sheave by moving forward and backward the location and the guiding that realize mobile clamping seats on pillar, web of the rail clamping cylinder is fixed on mobile clamping seats and with web of the rail clamping claw back seat and is connected by web of the rail clamping cylinder seat in mobile clamping seats one side, clamping claw after the web of the rail is installed in web of the rail clamping claw back seat, opposite side web of the rail front clamp jaw at mobile clamping seats is arranged in web of the rail clamping claw front stall, web of the rail clamping claw front stall clamps bearing with the web of the rail and is connected, the web of the rail clamps bearing and is fixed on mobile clamping seats, rear crank is connected with rear adjusting screw(rod) one end, back nut is on rear adjusting screw(rod), oil cylinder seat is connected with rear adjusting screw(rod), after-poppet supports rear bearing sheet, after-poppet is fixed on to be installed on basis, clamp nut is fixed pillar and oil cylinder seat, main oil is fixed on oil cylinder seat and by piston rod and is connected with power sensor, power sensor is connected with rail by mobile clamping seats, rail head clamping cylinder is bolted on mobile clamping seats and by rail head clamping piston bar and is connected with rail head clamping claw seat, rail head clamping claw is arranged in rail head clamping claw seat, rail head jaw pressing plate is fixed on rail head clamping claw on rail head clamping claw seat, flange of rail jaw seat is fixed in the groove of mobile clamping seats bottom, flange of rail clamping claw is arranged in flange of rail jaw seat, flange of rail jaw pressing plate is fixed on flange of rail clamping claw in flange of rail jaw seat.
2. the longitudinal tensile and compression testing machine of a kind of railroad track rail according to claim 1, it is characterized in that: when the longitudinal tensile and compression testing machine of described a kind of railroad track rail is installed, the rail tensile and compression testing machine main frame in left side is fixed on testing laboratory's counter force wall (or steel reaction frame) by front shoe, the rail tensile and compression testing machine on right side fixes to clamp seat and is also fixed on counter force wall (or steel reaction frame) above by front shoe, and the seat that fixes to clamp on right side does not have power sensor.
3. the longitudinal tensile and compression testing machine of a kind of railroad track rail according to claim 1, it is characterized in that: the described longitudinal tensile and compression testing machine of a kind of railroad track rail is in the time carrying out rail tension and compression test, web of the rail clamping cylinder and rail head clamping cylinder are by web of the rail front clamp jaw, clamping claw and flange of rail clamping claw after the web of the rail, two-way pressure clamping and pressure that rail head clamping claw carries out level and vertical direction to rail are respectively unclamped, the work of rail head clamping cylinder makes rail head clamping claw and flange of rail clamping claw that rail is clamped up and down and be unclamped, after the work of web of the rail clamping cylinder makes web of the rail front clamp jaw and the web of the rail, clamping claw carries out web of the rail clamping and unclamps rail.
4. the longitudinal tensile and compression testing machine of a kind of railroad track rail according to claim 1, is characterized in that: after described flange of rail clamping claw, rail head clamping claw, web of the rail front clamp jaw, the web of the rail, clamping claw can be changed according to different railway track specifications and models.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130594.8A CN103940673B (en) | 2014-04-02 | 2014-04-02 | Longitudinal tensile and compression testing machine for steel rail of railway track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130594.8A CN103940673B (en) | 2014-04-02 | 2014-04-02 | Longitudinal tensile and compression testing machine for steel rail of railway track |
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| Publication Number | Publication Date |
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| CN103940673A true CN103940673A (en) | 2014-07-23 |
| CN103940673B CN103940673B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410130594.8A Active CN103940673B (en) | 2014-04-02 | 2014-04-02 | Longitudinal tensile and compression testing machine for steel rail of railway track |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181174A (en) * | 2018-02-05 | 2018-06-19 | 张勇 | A kind of industrial rubber quality test device |
| CN112816327A (en) * | 2021-02-03 | 2021-05-18 | 济南恒瑞金试验机有限公司 | Tensile and compressive testing machine and testing method for structural wood laminated wood |
| CN114526905A (en) * | 2021-12-31 | 2022-05-24 | 浙江翔宇密封件有限公司 | Anti deformability detection device of sealing washer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181174A (en) * | 2018-02-05 | 2018-06-19 | 张勇 | A kind of industrial rubber quality test device |
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| CN114526905A (en) * | 2021-12-31 | 2022-05-24 | 浙江翔宇密封件有限公司 | Anti deformability detection device of sealing washer |
| CN114526905B (en) * | 2021-12-31 | 2024-01-30 | 浙江翔宇密封件有限公司 | Sealing washer anti deformability detection device |
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| CN103940673B (en) | 2017-05-24 |
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