CN103940673B - 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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- CN103940673B CN103940673B CN201410130594.8A CN201410130594A CN103940673B CN 103940673 B CN103940673 B CN 103940673B CN 201410130594 A CN201410130594 A CN 201410130594A CN 103940673 B CN103940673 B CN 103940673B
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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
It is by two sets of railway track longitudinal direction tensile compression test machine hosts and corresponding fixture, liquid the present invention relates to testing machine field
Press pump station, pilot valve, test force, piston displacement, deformation of rail sensor, loading frame（Or counter-force basis）, industry
Control computer machine TT＆C software system etc. is constituted, specifically a kind of railroad track rail longitudinal direction tensile and compression testing machine.
Background technology
Railroad track is generally made up of two parallel rail, and rail is arranged on sleeper by rail fastener system, rail
It is road-metal or fragment-free track slab under pillow.Railroad track subjects diverse vertical, horizontal, longitudinal dead load and dynamic load
Lotus, load passes to roadbed from railway track by sleeper and railway roadbed again, in order to ensure the basic life-span of railroad track, tests iron
The mechanical property in rail road is analyzed and researched under various load-up conditions, it is necessary to carry out laboratory simulation detection to railroad track, iron
Stress and strain produced by the rail of road, so that it is determined that its bearing capacity and stability, can be to iron currently without a kind of equipment
Rail road parallel steel rails material object carries out longitudinal mechanical property test, and small-sized material testing apparatus are due to cannot be in kind to rail
Test specimen is tested, and using the method for testing of the interception standard metal material sample from rail, causes experimental data accurate
Reflect railroad track mechanics property of rail comprehensively, it is therefore desirable to a kind of large-scale railroad track rail test machine, and existing market
On the not no kind equipment.
The content of the invention
For above-mentioned deficiency, the invention provides a kind of railroad track rail longitudinal direction tensile and compression testing machine.
The present invention is achieved by the following technical solutions：A kind of railroad track rail longitudinal direction tensile and compression testing machine, is by steel
Rail, preceding crank, preceding adjusting screw rod, front nut, front shoe, pillar, directive wheel, web of the rail clamping cylinder, back nut, after-poppet,
Crank, rear adjusting screw rod, rear bearing sheet, master cylinder, clamp nut, oil cylinder seat, rail head clamping cylinder, mobile clamping seats, power afterwards
Sensor, web of the rail clamped seat, flange of rail jaw seat, flange of rail clamping claw, rail head clamping claw, rail head clamping claw seat, preceding branch
Clamping claw, the web of the rail are clamped after seat, main frame fixation clip, base plate, web of the rail clamping claw front stall, web of the rail front clamp jaw, the web of the rail
Jaw 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 are constituted, its feature
It is：Preceding crank is connected with preceding adjusting screw rod one end, front nut on preceding conciliation screw rod, preceding bearing and the preceding adjusting screw rod other end
Connection, preceding bearing is connected with front shoe, and front shoe is connected with base plate, and preceding bearing passes through main frame fixation clip with front shoe
Link together, there is four pillars between preceding bearing and oil cylinder seat, directive wheel is fixed on mobile clamping seats, directive wheel by
The positioning and guiding realized to mobile clamping seats are moved forward and backward on pillar, web of the rail clamping cylinder passes through rail in mobile clamping seats side
Waist clamping cylinder seat is fixed on mobile clamping seats and is connected with web of the rail clamping claw back seat, is installed in web of the rail clamping claw back seat
There is clamping claw after the web of the rail, be arranged in web of the rail clamping claw front stall in the opposite side web of the rail front clamp jaw of mobile clamping seats,
Web of the rail clamping claw front stall is connected with web of the rail clamped seat, and web of the rail clamped seat is fixed on mobile clamping seats, rear crank with it is rear
Adjusting screw rod one end connects, and on rear adjusting screw rod, oil cylinder seat is connected back nut with rear adjusting screw rod, after-poppet support rear support
Plate, after-poppet is fixed on installation foundation, and clamp nut fixes pillar with oil cylinder seat, and main oil is fixed on oil cylinder seat and passes through
Piston rod is connected with force snesor, and force snesor passes through mobile clamping seats and is connected with rail, and rail head clamping cylinder is solid by bolt
It is scheduled on mobile clamping seats and is connected with rail head clamping claw seat by rail head clamping piston bar, rail head clamping claw is installed in-orbit
In head clamping jaw seat, be fixed on rail head clamping claw on rail head clamping claw seat by rail head jaw pressing plate, and flange of rail jaw seat is consolidated
It is scheduled in the groove of mobile clamping seats bottom, flange of rail clamping claw is arranged in flange of rail jaw seat, and flange of rail jaw pressing plate presss from both sides the flange of rail
Clencher mouthful is fixed in flange of rail jaw seat.
When a kind of described railroad track rail longitudinal direction tensile and compression testing machine is installed, the rail longitudinal direction tensile compression test owner in left side
Machine is fixed on laboratory's counter force wall by front shoe（Or steel reaction frame）On, the rail longitudinal direction tensile and compression testing machine on right side is consolidated
Determine clamping seats and be fixed on counter force wall also by front shoe（Or steel reaction frame）On, the mobile clamping seats on right side do not have power to pass
Sensor.
A kind of described railroad track rail longitudinal direction tensile and compression testing machine when rail tensile compression test is carried out, web of the rail clamping cylinder
With rail head clamping cylinder by clamping claw after web of the rail front clamp jaw, the web of the rail and flange of rail clamping claw, rail head clamping claw point
The other level that carried out to rail clamps with the two-way pressure of vertical direction and forces to unclamp, and the work of rail head clamping cylinder clamps rail head
Jaw and flange of rail clamping claw are clamped and unclamped up and down to rail, the web of the rail clamping cylinder work make web of the rail front clamp jaw and
Clamping claw carries out web of the rail clamping and release to rail after the web of the rail.
Clamping claw can root after described flange of rail clamping claw, rail head clamping claw, web of the rail front clamp jaw, the web of the rail
Changed according to different railway track specifications and models.
The testing machine can be while pass through rail to the bifilar or sub-thread railroad track rail material object test specimen of certain length
The comprehensive high pressure of rail head clamping claw, flange of rail clamping claw, left and right steel rail web clamping claw four direction forces to clamp, meter
The main oil cylinder piston bar of calculation machine control main frame one end by fixture rail is carried out longitudinal stretching, compression, and carry out test data,
The acquisition process of trial curve, stress and deformation of the simulation railway track when rising-heat contracting-cold.
The usefulness of the invention is：Can simultaneously to the bifilar or sub-thread railroad track rail examination in kind of certain length
Part is by the comprehensive high pressure of rail head of rail clamping claw, flange of rail clamping claw, left and right steel rail web clamping claw four direction
Force to clamp, the main oil cylinder piston bar of computer controls main frame one end carries out rail longitudinal stretching, compression by fixture, goes forward side by side
Row test data, the acquisition process of trial curve, stress and deformation of the simulation railway track when rising-heat contracting-cold.
Brief description of the drawings
Fig. 1 is a kind of structure chart of railroad track rail longitudinal direction tensile and compression testing machine；Fig. 2 is a kind of railroad track rail longitudinal direction
The front view of tensile and compression testing machine；Fig. 3 is a kind of rail clamping device internal structure of railroad track rail longitudinal direction tensile and compression testing machine
Figure；Fig. 4 is a kind of left side experiment machine host installation diagram of railroad track rail longitudinal direction tensile and compression testing machine；Fig. 5 is a kind of rail
An installation diagram is fixed to clamp on the right side of the tensile and compression testing machine of road rail longitudinal direction.
In figure：1st, rail, 2, preceding crank, 3, preceding adjusting screw rod, 4, front nut, 5, front shoe, 6, pillar, 7, be oriented to
Wheel, 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, force snesor, 20, rail
Waist clamped seat, 21, flange of rail jaw seat, 22, flange of rail clamping claw, 23, rail head clamping claw, 24, rail head clamping claw seat,
25th, preceding 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, rail
Clamping claw after waist, 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 clamps
Piston rod, 35, the web of the rail clamping cylinder seat.
Specific embodiment
A kind of railroad track rail longitudinal direction tensile and compression testing machine, be by rail 1, preceding crank 2, preceding adjusting screw rod 3, front nut 4,
Front shoe 5, pillar 6, directive wheel 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, force snesor
19th, web of the rail clamped seat 20, flange of rail jaw seat 21, flange of rail clamping claw 22, rail head clamping claw 23, rail head clamping claw seat
24th, after preceding bearing 25, main frame fixation clip 26, base plate 27, web of the rail clamping claw front stall 28, the web of the rail front clamp jaw 29, web of the rail
Clamping claw 30, 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,
The composition of web of the rail clamping cylinder seat 35, it is characterised in that：Preceding crank 2 is connected with the one end of preceding adjusting screw rod 3, and front nut 4 is in preceding tune
Solution screw rod 3 on, preceding bearing 25 be connected with the other end of preceding adjusting screw rod 3, and preceding bearing 25 is connected with front shoe 5, front shoe 5 and
Base plate 27 is connected, and preceding bearing 25 is linked together with front shoe 5 by main frame fixation clip 26, preceding bearing 25 and oil cylinder seat 16
Between have four pillars 6, directive wheel 7 is fixed on mobile clamping seats 18, directive wheel 7 by pillar 6 move forward and backward realize
To the positioning and guiding of mobile clamping seats 18, web of the rail clamping cylinder 8 is in the mobile side of clamping seats 18 by web of the rail clamping cylinder seat
35 are fixed on mobile clamping seats 18 and are connected with web of the rail clamping claw back seat 31, and rail is installed in web of the rail clamping claw back seat 31
Clamping claw 30 after waist, web of the rail clamping claw front stall 28 is arranged in the opposite side web of the rail front clamp jaw 29 of mobile clamping seats 18
Interior, web of the rail clamping claw front stall 28 is connected with web of the rail clamped seat 20, and web of the rail clamped seat 20 is fixed on mobile clamping seats 18,
Crank 11 is connected with the one end of rear adjusting screw rod 12 afterwards, back nut 9 on rear adjusting screw rod 12, oil cylinder seat 16 and rear adjusting screw rod 12
Connection, the support rear bearing sheet 13 of after-poppet 10, after-poppet 10 is fixed on installation foundation, and clamp nut 15 is by pillar 6 and oil cylinder
Seat 16 is fixed, and master cylinder 14 is fixed on oil cylinder seat 16 and is connected with force snesor 19 by piston rod, and force snesor 19 passes through
Mobile clamping seats 18 are connected with rail 1, and rail head clamping cylinder 17 is bolted on mobile clamping seats 18 and by rail head
Clamping piston bar 34 is connected with rail head clamping claw seat 24, and rail head clamping claw 23 is arranged in rail head clamping claw seat 24, rail
Be fixed on rail head clamping claw 23 on rail head clamping claw seat 24 by head jaw pressing plate 33, and flange of rail jaw seat 21 is fixed on mobile folder
In the groove of the tight bottom of seat 18, flange of rail clamping claw 22 is arranged in flange of rail jaw seat 21, and flange of rail jaw pressing plate 32 clamps the flange of rail
Jaw 22 is fixed in flange of rail jaw seat 21.
When a kind of described railroad track rail longitudinal direction tensile and compression testing machine is installed, the rail longitudinal direction tensile compression test owner in left side
Machine is fixed on laboratory's counter force wall by front shoe 5（Or steel reaction frame）On, the rail longitudinal direction tensile and compression testing machine on right side
Fix to clamp seat and be fixed on counter force wall also by front shoe 5（Or steel reaction frame）On, the mobile clamping seats on right side do not have
Force snesor.
When 1 tensile compression test of rail is carried out, the web of the rail clamps oil to a kind of described railroad track rail longitudinal direction tensile and compression testing machine
Cylinder 8 and rail head clamping cylinder 17 are by clamping claw 30 and flange of rail clamping claw 22, rail head after the web of the rail front clamp jaw 29, web of the rail
Clamping claw 23 carries out level to rail 1 and is clamped with the two-way pressure of vertical direction and force to unclamp, rail head clamping cylinder respectively
17 work make rail head clamping claw 23 and flange of rail clamping claw 22 that rail is clamped and unclamped about 1, web of the rail clamping cylinder 8
Clamping claw 30 carries out web of the rail clamping and release to rail 1 after work makes web of the rail front clamp jaw 29 and the web of the rail.
Clamping claw 30 after described flange of rail clamping claw 22, rail head clamping claw 23, the web of the rail front clamp jaw 29, web of the rail
Can be changed according to different railway track specifications and models.
It is then that rail is another, it is necessary to by railway track 1, first put fixing to clamp in bearing for right side into when the equipment works
One end is put into the tensile and compression testing machine host mobility clamping seats of the rail in left side longitudinal direction, then by the clamping at computer controls two ends
Oil cylinder, two-way pressure clamping and release are carried out to rail by clamping claw, and control rail head clamping cylinder 17 is clamped together with rail head
Jaw 23 and flange of rail clamping claw 22 are clamped to rail about 1, and control web of the rail clamping cylinder 8 is by web of the rail clamping claw seat
31 and the web of the rail front clamp jaw 29, web of the rail after clamping claw 30 left and right clamping is carried out to rail, after four direction is all clamped, meter
Calculation machine is stretched by the master cylinder 14 of the rail longitudinal direction tensile compression test machine host on the left of pilot valve control, is compressed examination
Test, then pass data to computer and be acquired by force snesor 19, piston displacement sensor, deformation of rail sensor
Treatment Analysis, and provide test report.
Claims (3)
1. a kind of railroad track rail longitudinal direction tensile and compression testing machine, is by rail, preceding crank, preceding adjusting screw rod, front nut, preceding fixation
Plate, pillar, directive wheel, 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, force snesor, web of the rail clamped seat, flange of rail jaw seat, the flange of rail
Before clamping claw, rail head clamping claw, rail head clamping claw seat, preceding bearing, main frame fixation clip, base plate, web of the rail clamping claw
Clamping claw after seat, web of the rail front clamp jaw, 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 are constituted, it is characterised in that：Preceding crank is connected with preceding adjusting screw rod one end, preceding
On preceding conciliation screw rod, preceding bearing is connected nut with the preceding adjusting screw rod other end, and preceding bearing is connected with front shoe, front shoe
It is connected with base plate, preceding bearing is linked together with front shoe by main frame fixation clip, has four between preceding bearing and oil cylinder seat
Individual pillar, directive wheel is fixed on mobile clamping seats, and directive wheel is realized to mobile clamping seats by being moved forward and backward on pillar
Positioning and guiding, web of the rail clamping cylinder are fixed on mobile clamping seats simultaneously in mobile clamping seats side by web of the rail clamping cylinder seat
It is connected with web of the rail clamping claw back seat, clamping claw after the web of the rail is installed in web of the rail clamping claw back seat, in mobile clamping seats
Opposite side web of the rail front clamp jaw is arranged in web of the rail clamping claw front stall, and web of the rail clamping claw front stall connects with web of the rail clamped seat
Connect, web of the rail clamped seat is fixed on mobile clamping seats, rear crank is connected with rear adjusting screw rod one end, back nut is in rear regulation spiral shell
On bar, oil cylinder seat is connected with rear adjusting screw rod, and after-poppet support rear bearing sheet, after-poppet is fixed on installation foundation, fastens spiral shell
Mother fixes pillar with oil cylinder seat, and master cylinder is fixed on oil cylinder seat and is connected with force snesor by piston rod, force snesor
It is connected with rail by mobile clamping seats, rail head clamping cylinder is bolted on mobile clamping seats and is clamped by rail head
Piston rod is connected with rail head clamping claw seat, and rail head clamping claw is arranged in rail head clamping claw seat, and rail head jaw pressing plate will
Rail head clamping claw is fixed on rail head clamping claw seat, and flange of rail jaw seat is fixed in the groove of mobile clamping seats bottom, the flange of rail
Clamping claw is arranged in flange of rail jaw seat, and be fixed on flange of rail clamping claw in flange of rail jaw seat by flange of rail jaw pressing plate.
2. a kind of railroad track rail longitudinal direction according to claim 1 tensile and compression testing machine, it is characterised in that：Described one kind
When rail tensile compression test is carried out, web of the rail clamping cylinder and rail head clamping cylinder pass through railroad track rail longitudinal direction tensile and compression testing machine
After web of the rail front clamp jaw, the web of the rail clamping claw and flange of rail clamping claw, rail head clamping claw rail is carried out respectively level with
The two-way pressure of vertical direction clamps and forces to unclamp, and the work of rail head clamping cylinder makes rail head clamping claw and flange of rail clamping claw
Rail is clamped up and down and is unclamped, the web of the rail clamping cylinder work make web of the rail front clamp jaw and the web of the rail after clamping claw to steel
Rail carries out web of the rail clamping and release.
3. a kind of railroad track rail longitudinal direction according to claim 1 tensile and compression testing machine, it is characterised in that：The described flange of rail
Clamping claw can be according to different rail iron track gauges after clamping claw, rail head clamping claw, web of the rail front clamp jaw, the web of the rail
Lattice number is changed.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103940673A CN103940673A (en) | 2014-07-23 |
| CN103940673B true CN103940673B (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410130594.8A Active CN103940673B (en) | 2014-04-02 | 2014-04-02 | Longitudinal tensile and compression testing machine for steel rail of railway track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103940673B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181174B (en) * | 2018-02-05 | 2019-12-24 | 范强忠 | Industrial rubber quality testing 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 |
| 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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| CN2772669Y (en) * | 2005-03-16 | 2006-04-19 | 北京铁路局北京科学技术研究所 | Hydraulic drawing machine of steel rail |
| CN101000269A (en) * | 2006-01-09 | 2007-07-18 | 同济大学 | Method for measuring rail longitudinal force of jointless track structure |
| CN103207117A (en) * | 2013-03-07 | 2013-07-17 | 大连理工大学 | Stimulation experiment system for high-speed railway steel rail static loadings |
| CN203869954U (en) * | 2014-04-02 | 2014-10-08 | 济南力支测试系统有限公司 | Longitudinal tensile and compression testing machine for railway track steel rails |
-
2014
- 2014-04-02 CN CN201410130594.8A patent/CN103940673B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2413390A (en) * | 2004-02-26 | 2005-10-26 | Balfour Beatty Plc | Thermally induced stress indication device |
| CN2772669Y (en) * | 2005-03-16 | 2006-04-19 | 北京铁路局北京科学技术研究所 | Hydraulic drawing machine of steel rail |
| CN101000269A (en) * | 2006-01-09 | 2007-07-18 | 同济大学 | Method for measuring rail longitudinal force of jointless track structure |
| CN103207117A (en) * | 2013-03-07 | 2013-07-17 | 大连理工大学 | Stimulation experiment system for high-speed railway steel rail static loadings |
| CN203869954U (en) * | 2014-04-02 | 2014-10-08 | 济南力支测试系统有限公司 | Longitudinal tensile and compression testing machine for railway track steel rails |
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| "Constitutive model calibration for railway wheel steel through tension-torsion tests";R. Fedele et al.;《Computers and Structures》;20051231;第83卷;第1005-1020页 * |
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| CN103940673A (en) | 2014-07-23 |
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