CN215492845U - Railway fastener longitudinal mechanical property test device - Google Patents
Railway fastener longitudinal mechanical property test device Download PDFInfo
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- CN215492845U CN215492845U CN202120595243.XU CN202120595243U CN215492845U CN 215492845 U CN215492845 U CN 215492845U CN 202120595243 U CN202120595243 U CN 202120595243U CN 215492845 U CN215492845 U CN 215492845U
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- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 45
- 241001669679 Eleotris Species 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of railway detection, and discloses a longitudinal mechanical property testing device for a railway fastener, wherein a screw rod is movably connected to a bottom plate, nuts are in threaded connection with two ends of the screw rod, a clamping plate is movably connected to the outer wall of the screw rod, a sleeper is arranged on the clamping plate, a steel rail is fixedly connected to the sleeper through the fastener, a connecting block is welded to the cross section of one side of the steel rail, a first jack is fixedly connected to one side of the connecting block, a supporting block is fixedly connected to the side wall of the first jack, a connecting plate is fixedly connected to the bottom of the supporting block, a pressing plate is arranged on the upper portion of the steel rail, a gauge stand is fixedly connected to the bottom of the pressing plate, a second jack is fixedly connected to the top of the pressing plate on the side wall of the gauge stand, a support body is fixedly connected to the outer wall of the second jack, and a fixing plate is fixedly connected to the inner wall of the support body. The device can simulate the vertical mechanics atress characteristic of fastener under the vertical load effect, and holistic commonality is good, through the synergism of first displacement sensor and second displacement sensor for whole measurement accuracy is high.
Description
Technical Field
The utility model belongs to the technical field of railway detection, and particularly relates to a railway fastener longitudinal mechanical property testing device.
Background
With the development of science and technology, rail transit gradually becomes a very important means of transportation in modern society, wherein a seamless track is an important sign of the technological progress of railways in the world, and compared with a common track, the track is smoother due to the elimination of a steel rail joint. The fastener is used as a connecting part between a steel rail and a sleeper, plays a key role in keeping the stability and reliability of a railway, plays a vital role in the design and operation of a seamless track, has a very important significance in the design and construction of the existing railway by taking the longitudinal resistance of the fastener as a key parameter for evaluating the performance of the fastener. But the existing fastener resistance testing device has the defects of difficulty in loading vertical force, complex structure, low precision and the like, so that a brand-new railway fastener longitudinal mechanical property testing device is urgently needed to make up the defects of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: in order to solve the problems, the longitudinal mechanical property testing device for the railway fastener is provided.
The technical scheme adopted by the utility model is as follows: a screw rod is fixedly connected to a bottom plate, nuts are in threaded connection with two ends of the screw rod, clamping plates are movably connected to the outer wall of the screw rod, a sleeper is arranged between the clamping plates, a fastener is fixedly connected to the top surface of the sleeper, a steel rail is fixedly connected to the sleeper through the fastener, a connecting block is welded on the cross section of one side of the steel rail, a first jack is fixedly connected to one side of the connecting block, a supporting block is fixedly connected to the side wall of the first jack, a connecting plate is fixedly connected to the bottom of the supporting block, a pressing plate is arranged on the upper portion of the steel rail, a gauge stand is fixedly connected to the bottom of the pressing plate, a first connecting rod is movably connected to the side wall of the gauge stand, a second connecting rod is movably connected to the lower portion of the first connecting rod, a first displacement sensor is movably connected to the lower portion of the second connecting rod, the lateral wall of gauge stand the top fixedly connected with second jack of clamp plate, the outer wall fixedly connected with support body of second jack, the inner wall fixedly connected with fixed plate of support body, the top surface fixedly connected with second displacement sensor of fixed plate.
In a preferred embodiment, the side walls of the connecting plates are welded to the side walls of the base plate, the bottom of the frame body is welded to the base plate, and the top of the second displacement sensor is fixedly connected to the steel rail.
In a preferred embodiment, the number of the screws is four, and the screws are respectively arranged at four corners of the top surface of the bottom plate.
In a preferred embodiment, the number of the nuts is eight, and every two nuts are in one group and are respectively in threaded connection with the upper side and the lower side of the screw rod.
In a preferred embodiment, the number of the clamping plates is four, every two clamping plates are a group of screws movably connected to two end corners of the front portion of the bottom plate respectively, the two screws are arranged on the left side and the right side of the clamping plates respectively, and the two clamping plates are arranged on the upper surface and the lower surface of the sleeper respectively.
In a preferred embodiment, the number of the connecting blocks, the number of the first connecting rods, the number of the second connecting rods and the number of the first displacement sensors are four, the connecting blocks, the first connecting rods, the second connecting rods and the number of the first displacement sensors are respectively arranged at four corners of the bottom surface of the pressing plate, and every two of the four first displacement sensors are arranged on two sides of one side wall of the sleeper in a group.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. according to the utility model, the first jack provides longitudinal tension for the steel rail, the second displacement sensor is used for measuring the displacement value of the steel rail subjected to the longitudinal tension, the four first displacement sensors on the side wall of the sleeper are used for measuring the displacement of the steel rail relative to the sleeper, the longitudinal resistance characteristic of the fastener can be obtained by measuring the force of the first jack and the displacement of the steel rail, meanwhile, the second jack can be used for applying vertical force to the steel rail, the longitudinal resistance condition of the fastener under different train loads is simulated, the detection result is more practical, and the detection accuracy of the fastener is improved.
2. According to the utility model, the upper clamping plate and the lower clamping plate are used for fixing the sleeper, a displacement space is provided for the sleeper, the left position and the right position of the sleeper can be freely adjusted and fixed, the height of the lower clamping plate can be freely adjusted on the screw rod by adjusting the lower nut on the screw rod, and the sleeper with different thicknesses in an experiment can be conveniently fixed, so that the height of the sleeper can be conveniently adjusted to adapt to detection equipment, and meanwhile, the positions of the first connecting rod and the second connecting rod can be freely adjusted on the gauge stand, so that the first displacement sensor can be freely adapted to sleepers with different widths, the equipment detection is more convenient, the overall structure design is flexible, and the universality of the overall equipment is improved.
Drawings
FIG. 1 is a schematic representation of the three-dimensional structure of the present invention;
FIG. 2 is a schematic diagram of a three-dimensional structure of the detecting apparatus according to the present invention;
FIG. 3 is a schematic diagram of a three-dimensional structure of a second jack connection structure according to the present invention;
FIG. 4 is a schematic diagram of a three-dimensional structure of a detection track according to the present invention;
fig. 5 is a schematic plan view of the front structure of the present invention.
The labels in the figure are: the device comprises a base plate 1, a screw rod 2, a nut 3, a clamping plate 4, a sleeper 5, a fastener 6, a steel rail 7, a connecting block 8, a first jack 9, a supporting block 10, a connecting plate 11, a pressing plate 12, a gauge stand 13, a first connecting rod 14, a second connecting rod 15, a first displacement sensor 16, a second jack 17, a frame body 18, a fixing plate 19 and a second displacement sensor 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a railway fastener longitudinal mechanical property test device, a screw rod 2 is fixedly connected to the top surface of a bottom plate 1, the number of the screw rod 2 is four, the screw rods 2 are respectively arranged at four end corners of the top surface of the bottom plate 1, two ends of the screw rod 2 are in threaded connection with nuts 3, the number of the nuts 3 is eight, every two nuts 3 are in one group and are respectively in threaded connection with the upper side and the lower side of the screw rod 2, the outer wall of the screw rod 2 is movably connected with a clamping plate 4, the clamping plate 4 is clamped on a sleeper 5 through the nuts 2 on the screw rod 2, the upper side, the lower side, the left side and the right side of the sleeper 5 can be freely adjusted to adapt to the position of a first jack 9, the number of the clamping plates 4 is four, every two clamping plates are in one group and are respectively movably connected to the screw rods 2 at the two end corners of the front part of the bottom plate 1, the two screw rods 2 are respectively arranged at the left side and the right side of the clamping plate 4, and the two clamping plates 4 are respectively arranged on the upper side and the lower side of the sleeper 5, the clamp plate 4 is provided with a sleeper 5, the top surface of the sleeper 5 is fixedly connected with a fastener 6, the sleeper 5 is fixedly connected with a steel rail 7 through the fastener 6, the cross section of one side of the steel rail 7 is welded with a connecting block 8, one side of the connecting block 8 is fixedly connected with a first jack 9, the first jack 9 provides longitudinal tension for the steel rail 7, the side wall of the first jack 9 is fixedly connected with a supporting block 10, the bottom of the supporting block 10 is fixedly connected with a connecting plate 11, the side wall of the connecting plate 11 is welded on the side wall of the bottom plate 1, the upper part of the steel rail 7 is provided with a pressing plate 12, the bottom of the pressing plate 12 is fixedly connected with a gauge stand 13, the side wall of the gauge stand 13 is movably connected with a first connecting rod 14, the lower part of the first connecting rod 14 is movably connected with a second connecting rod 15, the lower part of the second connecting rod 15 is movably connected with a first displacement sensor 16, and the displacement value of the steel rail 7 relative to the sleeper 5 is measured by the first displacement sensor 16, the first connecting rods 14 and the second connecting rods 15 form an arm-imitating shape, the positions can be freely adjusted, the first sensors 16 can be conveniently attached to the side walls of different sleepers 5, the number of the connecting blocks 8, the number of the first connecting rods 14, the number of the second connecting rods 15 and the number of the first displacement sensors 16 are four, the formed structure is respectively arranged at four end corners of the bottom surface of the pressing plate 12, every two of the four first displacement sensors 16 are arranged at two sides of the side wall of one side of each sleeper 5 in a group, the top of the side wall pressing plate 12 of the gauge stand 13 is fixedly connected with a second jack 17, the second jack provides vertical pressure for a rail to simulate actual conditions, the outer wall of the second jack 17 is fixedly connected with a frame body 18, the bottom of the frame body 18 is welded on the bottom plate 1, the inner wall of the frame body 18 is fixedly connected with a fixing plate 19, the top surface of the fixing plate 19 is fixedly connected with a second displacement sensor 20, the second displacement sensor 20 is utilized to measure the displacement value of the rail 7 which is subjected to longitudinal direction, the top of the second displacement sensor 20 is fixedly attached to the rail 7.
The working principle is as follows: in the use process of the railway fastener longitudinal mechanical property test device, when measurement is needed, the upper nut 3 of the screw rod 2 is taken off, the upper clamping plate 4 of the screw rod 2 is taken off, the steel rail 7 connected to the sleeper 5 through the fastener 6 is placed on the lower clamping plate 4 of the screw rod 2, the lower nut of the screw rod 2 is adjusted, the clamping plate 4 below the sleeper 5 is adjusted to be suitable for the height of the first jack 9, after adjustment is completed, the taken-off clamping plate 4 and the nut 3 are sequentially fixed back to the screw rod 2, the nut 3 is locked, the position of the sleeper 5 is fixed, the end part of the first jack 9 is fixed on the connecting block 8 of the steel rail 7, the second displacement sensor 20 is fixed on the other cross section of the steel rail 7, the second jack 17 is put down, the pressing plate 12 presses the upper part of the steel rail 7, the first connecting rod 14 and the second connecting rod 15 movably connected to the gauge stand 13 are adjusted, the lateral wall of adjustment first displacement sensor 16 laminating sleeper 5, all adjust the back, begin to measure, utilize second displacement sensor 20 to measure rail 7 and receive longitudinal tensile's displacement value, and utilize four first displacement sensors 16 of lateral wall of sleeper 5 to measure rail 7 and for sleeper 5's displacement value, through the displacement of measuring the power of first jack 9 and rail 7, can obtain the longitudinal resistance characteristic of fastener, vertical power is applyed to rail 7 to usable second jack 17 simultaneously, simulate the longitudinal resistance condition of fastener under the different train loads, after the measurement, reverse operation can take off sleeper 5, make things convenient for next time to measure.
Among this vertical mechanical properties test device of railway fastener, provide vertical pulling force to rail 7 through first jack 9, utilize second displacement sensor 20 to measure rail 7 and receive vertical pulling force's displacement value, and utilize four first displacement sensors 16 of lateral wall of sleeper 5 to measure rail 7 for sleeper 5's displacement value, through the displacement of measuring first jack 9's power and rail 7, can derive the longitudinal resistance characteristic of fastener, vertical power is applyed to rail 7 to usable second jack 17 simultaneously, simulate the longitudinal resistance condition of fastener under the different train loads, the testing result accords with reality more, the improvement is to the fastener detection accuracy.
Among this vertical mechanical properties test device of railway fastener, through the fixed sleeper 5 of upper and lower cardboard 4, provide the displacement space for sleeper 5, and can freely adjust the position about fixed sleeper 5, and through lower part nut 3 on adjusting screw 2, make lower part cardboard 4 can freely adjust the height on screw 2, the convenient sleeper 5 to the different thickness in the experiment is fixed, thereby conveniently adjust sleeper 5's height and come adaptation check out test set, simultaneously head rod 14 and second connecting rod 15 can freely adjust the position on gauge stand 13, make the sleeper 5 that first displacement sensor 16 can freely adapt different width and position, make things convenient for the equipment detection more, overall structure design is nimble, improve the commonality of whole equipment.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a vertical mechanical properties test device of railway fastener, includes bottom plate (1), its characterized in that: the top surface of the bottom plate (1) is fixedly connected with a screw rod (2), two ends of the screw rod (2) are in threaded connection with nuts (3), the outer wall of the screw rod (2) is movably connected with clamping plates (4), sleepers (5) are arranged between the clamping plates (4), the top surface of each sleeper (5) is fixedly connected with a fastener (6), each sleeper (5) is fixedly connected with a steel rail (7) through the fastener (6), a connecting block (8) is welded on the cross section of one side of each steel rail (7), one side of each connecting block (8) is fixedly connected with a first jack (9), the side wall of each first jack (9) is fixedly connected with a supporting block (10), the bottom of each supporting block (10) is fixedly connected with a connecting plate (11), a pressing plate (12) is arranged on the upper portion of each steel rail (7), a gauge seat (13) is fixedly connected with the bottom of the pressing plate (12), and a first connecting rod (14) is movably connected with the side wall of the gauge seat (13), the utility model discloses a table top of a computer, including the lower part swing joint of head rod (14), the lower part swing joint of head rod (14) has second connecting rod (15), the lower part swing joint of second connecting rod (15) has first displacement sensor (16), the lateral wall of gauge stand (13) top fixedly connected with second jack (17) of clamp plate (12), the outer wall fixedly connected with support body (18) of second jack (17), the inner wall fixedly connected with fixed plate (19) of support body (18), the top surface fixedly connected with second displacement sensor (20) of fixed plate (19).
2. The railway fastener longitudinal mechanical property test device of claim 1, wherein: the side wall of the connecting plate (11) is welded on the side wall of the bottom plate (1), the bottom of the frame body (18) is welded on the bottom plate (1), and the top of the second displacement sensor (20) is fixedly connected on the steel rail (7).
3. The railway fastener longitudinal mechanical property test device of claim 1, wherein: the number of the screw rods (2) is four, and the screw rods are respectively arranged at four end corners of the top surface of the bottom plate (1).
4. The railway fastener longitudinal mechanical property test device of claim 1, wherein: the number of the nuts (3) is eight, every two nuts (3) are in one group and are respectively in threaded connection with the upper side and the lower side of the screw rod (2).
5. The railway fastener longitudinal mechanical property test device of claim 1, wherein: the number of the clamping plates (4) is four, every two clamping plates are a group of screw rods (2) which are movably connected to two end corners of the front portion of the bottom plate (1), the two screw rods (2) are arranged on the left side and the right side of the clamping plates (4), and the two clamping plates (4) are arranged on the upper surface and the lower surface of the sleeper (5) respectively.
6. The railway fastener longitudinal mechanical property test device of claim 1, wherein: the connecting block (8), head rod (14), second connecting rod (15) and the quantity of first displacement sensor (16) is four, and the structure of constituteing sets up respectively four extreme angle departments of the bottom surface of clamp plate (12), and four every two of first displacement sensor (16) are a set of setting and are in the both sides of one side lateral wall of sleeper (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120595243.XU CN215492845U (en) | 2021-03-24 | 2021-03-24 | Railway fastener longitudinal mechanical property test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120595243.XU CN215492845U (en) | 2021-03-24 | 2021-03-24 | Railway fastener longitudinal mechanical property test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215492845U true CN215492845U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120595243.XU Active CN215492845U (en) | 2021-03-24 | 2021-03-24 | Railway fastener longitudinal mechanical property test device |
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| Country | Link |
|---|---|
| CN (1) | CN215492845U (en) |
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2021
- 2021-03-24 CN CN202120595243.XU patent/CN215492845U/en active Active
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