CN216899588U - Rail transit high-low temperature fatigue comprehensive test bench - Google Patents
Rail transit high-low temperature fatigue comprehensive test bench Download PDFInfo
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- CN216899588U CN216899588U CN202220189592.6U CN202220189592U CN216899588U CN 216899588 U CN216899588 U CN 216899588U CN 202220189592 U CN202220189592 U CN 202220189592U CN 216899588 U CN216899588 U CN 216899588U
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Abstract
The utility model discloses a rail transit high-low temperature fatigue comprehensive test bench which comprises a protection box, wherein a support table is fixed on the inner wall of the bottom of the protection box, an L-shaped clamp plate is fixed on the outer wall of the top of the support table, a sleeper is fixed on the outer wall of one side of the L-shaped clamp plate, a rail body is fixed on the outer wall of the top of the sleeper, a nickel-chromium heater is fixed on the inner wall of one side of the protection box, a circular through hole is formed in the inner wall of one side of the protection box, a fan is fixed on the inner wall of the circular through hole, and a group of electric control air valves are inserted into the inner wall of one side of the protection box. The rail body fatigue testing device can be used for carrying out stress endurance testing on the top and two ends of the rail body, a worker can control the operation of the nickel-chromium heater through the control panel to heat the environment in the protection box and carry out fatigue performance testing on the rail body in a high-temperature environment, and can also control the opening of the electric control air valve to enable cold air in a refrigeration pipeline to enter the protection box, cool the interior of the protection box and carry out fatigue performance testing on the rail body in a low-temperature environment.
Description
Technical Field
The utility model relates to the technical field of fatigue detection, in particular to a rail transit high-low temperature fatigue comprehensive test bench.
Background
The rail transit is a transportation means or a transportation system in which an operating vehicle needs to run on a specific rail, the most typical rail transit is a railway system consisting of a traditional train and a standard railway, a large amount of metal is used for building the rail in the rail transit, and the fatigue performance of the rail needs to be tested when the rail used for building the rail is determined, so that the safety of the rail transit is ensured.
Through the retrieval, chinese patent application number is CN 202020596444.7's patent, discloses a track traffic fatigue performance testing arrangement, including base, gear wheel and guide arm, the top of base is fixed with lower fixed ring, upper fixed ring's the place ahead is provided with the hinge, the gear wheel is located upper fixed ring's top, the motor is installed on the right side of pinion, the below of screw is fixed with the support, but above-mentioned technical scheme still exists because not set up corresponding mechanism that can simulate high temperature and low temperature environment, consequently can not carry out the problem of fatigue performance test to the rail under high temperature or low temperature environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a rail transit high-low temperature fatigue comprehensive test bed.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a track traffic high low temperature fatigue comprehensive test bench, including the guard box, guard box bottom inner wall is fixed with a supporting bench, a supporting bench top outer wall is fixed with L type splint, L type splint one side outer wall is fixed with the sleeper, sleeper top outer wall is fixed with the track body, guard box one side inner wall is fixed with the nickel-chromium heater, guard box one side inner wall is opened there is circular through-hole, the circular through-hole inner wall is fixed with the fan, guard box one side inner wall is pegged graft and is had a set of automatically controlled pneumatic valve, automatically controlled pneumatic valve runs through in guard box one side inner wall, guard box top outer wall is opened there is the second guiding hole, guard box one side outer wall is opened there is first guiding hole, guard box bottom inner wall is provided with displacement detection mechanism.
As a still further scheme of the utility model: and a control panel is fixed on the outer wall of the top of the protection box, and the fan and the electric control air valve are respectively and electrically connected with the control panel.
As a still further scheme of the utility model: displacement detection mechanism includes pole setting, adapter sleeve, installation pole and displacement sensor, and on the pole setting was fixed in the bottom inner wall of guard box, adapter sleeve sliding connection was on the outer wall of pole setting, and on adapter sleeve one side outer wall was fixed in the outer wall of pole setting, installation pole sliding connection was on adapter sleeve's inner wall, and displacement sensor was fixed in on the outer wall of installation pole, displacement sensor and control panel electric connection.
As a still further scheme of the utility model: the outer wall of the bottom of the track body is fixed with a connecting plate, the outer wall of one side of the connecting plate is welded with a connecting buckle, the inner wall of the connecting buckle is rotatably connected with a pulling block, the outer wall of one side of the pulling block is fixed with a pulling rope, and the outer wall of one side of the pulling rope is fixed with a connecting block.
As a still further scheme of the utility model: the outer wall of the bottom of the protection box is fixed with a bottom plate, the outer wall of the top of the bottom plate is fixed with a sliding rail, the sliding rail penetrates through the outer wall of one side of the protection box, and the supporting table is connected to the outer wall of the top of the sliding rail in a sliding mode.
As a still further scheme of the utility model: the outer wall of one side of the protection box is connected with a sealing door through a hinge, the outer wall of one side of the protection box is fixed with an observation window, the inner wall of one side of the protection box is fixed with a temperature sensor, and the temperature sensor is electrically connected with the control panel.
As a still further scheme of the utility model: and a pressing plate is fixed on the outer wall of the top of the protection box, a sealing plug is fixed on the outer wall of the bottom of the pressing plate, and the sealing plug is inserted into the inner wall of the second guide hole.
As a still further scheme of the utility model: the size of the second guide hole is consistent with that of the first guide hole, a handle is fixed on the outer wall of the top of the pressing plate, an elastic friction pad is bonded on the outer wall of the sealing plug, and a ventilation pipe is fixed on the outer wall of one side of the protection box.
The utility model has the beneficial effects that:
1. this device can carry out the durable detection of atress to the top and both ends of track body, when examining, staff's accessible control panel control nickel-chromium heater operation, heat the environment of protection incasement portion, thereby can carry out fatigue performance detection to the track body under high temperature environment, staff's accessible control panel control nickel-chromium heater closes, the steam of while control fan operation inside the protection incasement is taken out fast, be connected automatically controlled pneumatic valve with outside refrigeration pipeline, close the fan afterwards, simultaneously open through the automatically controlled pneumatic valve of control panel control, let the air conditioning in the refrigeration pipeline get into inside the protection incasement portion, cool down to the protection incasement portion, thereby can carry out fatigue performance detection to the track body under low temperature environment.
2. The staff can pass through instruments such as bolts with outside hydraulic means's output shaft and be connected with the connecting block, draws the piece to remove to the outside through the stay cord pulling afterwards, owing to draw and be connected for rotating between piece and the connector link, can let the stay cord more steady pull the one end of track body, improves the holistic stability of test bench.
3. When the staff heaies up or cools down to the guard box inside through control panel control corresponding equipment, accessible sealing plug will temporarily not use on first guiding hole or the second guiding hole is stifled, avoid the inside hot-air of guard box or cold air to spill to the external world through first guiding hole or second guiding hole, the holistic sealing performance of guard box has been improved, the ventilation pipe can lead to the air of taking out when the fan moves, when heating or cooling to the guard box inside, can seal up the ventilation pipe and avoid the inside gas of guard box to spill through the fan.
Drawings
FIG. 1 is a schematic structural view of a rail transit high and low temperature fatigue comprehensive test bed according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of a protection box of the rail transit high and low temperature fatigue comprehensive test bed provided by the utility model;
FIG. 3 is a schematic structural diagram of a support table of the rail transit high and low temperature fatigue comprehensive test bed provided by the utility model;
FIG. 4 is a schematic structural view of a displacement detection mechanism of a rail transit high and low temperature fatigue comprehensive test bed provided by the utility model;
FIG. 5 is a schematic structural view of a sealing plug of a rail transit high and low temperature fatigue comprehensive test bench provided by the utility model;
fig. 6 is a schematic circuit flow diagram of a rail transit high-low temperature fatigue comprehensive test bed provided by the utility model.
In the figure: 1-protection box, 2-observation window, 3-bottom plate, 4-slide rail, 5-sealing door, 6-control panel, 7-handle, 8-pressing plate, 9-temperature sensor, 10-track body, 11-first guide hole, 12-L type splint, 13-support table, 14-sleeper, 15-connecting plate, 16-connecting buckle, 17-connecting block, 18-pull rope, 19-pull block, 20-vertical rod, 21-mounting rod, 22-nickel-chromium heater, 23-displacement sensor, 24-connecting sleeve, 25-sealing plug, 26-second guide hole, 27-ventilation pipe, 28-electric control air valve and 29-fan.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
A rail transit high and low temperature fatigue comprehensive test bed is shown in figures 1-6 and comprises a protection box 1, wherein a support table 13 is fixed on the inner wall of the bottom of the protection box 1 through screws, an L-shaped clamp plate 12 is fixed on the outer wall of the top of the support table 13 through screws, a sleeper 14 is fixed on the outer wall of one side of the L-shaped clamp plate 12, a rail body 10 is fixed on the outer wall of the top of the sleeper 14 through bolts, a nickel-chromium heater 22 is fixed on the inner wall of one side of the protection box 1 through screws, a circular through hole is formed in the inner wall of one side of the protection box 1, a fan 29 is fixed on the inner wall of the circular through hole, and a group of electric control air valves 28 are inserted and connected on the inner wall of one side of the protection box 1;
a worker firstly clamps and fixes a sleeper 14 on the top of a support table 13 through an L-shaped clamp plate 12, then fixes a track body 10 to be tested on the outer wall of the top of the sleeper 14 through bolts, inserts an output shaft of external hydraulic equipment into a protection box 1 through a first guide hole 11, and then connects with one side of the track body 10 through screws, so that resistance testing can be carried out on one end of the track body 10, or inserts the output shaft of the external hydraulic equipment into the protection box 1 through a second guide hole 26, then extrudes the top of the track body 10, and carries out resistance testing on the top of the track body 10, so that stress endurance testing is carried out on the top and two ends of the track body 10, when in testing, the worker can control a nickel-chromium heater 22 to operate through a control panel 6, heat the environment in the protection box 1, so that fatigue performance testing can be carried out on the track body 10 under a high-temperature environment, the working personnel can control the nickel-chromium heater 22 to be closed through the control panel 6, simultaneously control the fan 29 to operate to quickly pump out hot gas in the protective box 1, connect the electric control air valve 28 with an external refrigeration pipeline, then close the fan 29, and simultaneously control the electric control air valve 28 to be opened through the control panel 6, so that cold air in the refrigeration pipeline enters the protective box 1 to cool the interior of the protective box 1, thereby detecting the fatigue performance of the track body 10 in a low-temperature environment; the electric control air valve 28 penetrates through the inner wall of one side of the protection box 1, the outer wall of the top of the protection box 1 is provided with a second guide hole 26, the outer wall of one side of the protection box 1 is provided with a first guide hole 11, and the inner wall of the bottom of the protection box 1 is provided with a displacement detection mechanism; the outer wall of the top of the protection box 1 is fixed with a control panel 6 through screws, and the fan 29 and the electric control air valve 28 are respectively and electrically connected with the control panel 6.
In order to be able to accurately detect the fatigue performance of the rail body 10; as shown in fig. 3 and 4, the displacement detection mechanism includes an upright 20, a connecting sleeve 24, a mounting rod 21 and a displacement sensor 23, the upright 20 is fixed on the inner wall of the bottom of the protection box 1 by screws, the connecting sleeve 24 is slidably connected to the outer wall of the upright 20, the outer wall of one side of the connecting sleeve 24 is fixed on the outer wall of the upright 20 by screws, the mounting rod 21 is slidably connected to the inner wall of the connecting sleeve 24, the displacement sensor 23 is fixed on the outer wall of the mounting rod 21 by bolts, and the displacement sensor 23 is electrically connected with the control panel 6; displacement sensor 23 can carry out accurate detection to the displacement that track body 10 produced after the atress, and accessible installation pole 21 and pole setting 20 are adjusted displacement sensor 23's position simultaneously, improve displacement sensor 23's detection precision, and displacement sensor 23's model is FGH-EX.
To facilitate resistance testing of both ends of the rail body 10; as shown in fig. 3, a connecting plate 15 is fixed on the outer wall of the bottom of the track body 10 through bolts, a connecting buckle 16 is welded on the outer wall of one side of the connecting plate 15, a pulling block 19 is rotatably connected on the inner wall of the connecting buckle 16, a pulling rope 18 is fixed on the outer wall of one side of the pulling block 19, and a connecting block 17 is fixed on the outer wall of one side of the pulling rope 18; the staff can pass through instruments such as bolts with outside hydraulic means's output shaft and be connected with connecting block 17, draws 19 outside lateral shifting of piece through the 18 pulling of stay cord afterwards, owing to draw and be connected for rotating between piece 19 and the connector link 16, can let the one end to track body 10 that stay cord 18 is more steady stimulate, improves the holistic stability of test bench.
The rail body 10 is convenient to fix and replace; as shown in fig. 1, 2 and 3, a bottom plate 3 is fixed on the outer wall of the bottom of the protection box 1 through screws, a slide rail 4 is fixed on the outer wall of the top of the bottom plate 3 through screws, the slide rail 4 penetrates through the outer wall of one side of the protection box 1, and a support table 13 is connected to the outer wall of the top of the slide rail 4 in a sliding manner; the staff at first will fix the screw of brace table 13 and twist off, can outwards stimulate brace table 13 through slide rail 4 afterwards to pull out 1 outer wall of guard box with brace table 13, make things convenient for the staff to change track body 10 on sleeper 14.
In order to improve the overall sealing performance of the protection box 1; as shown in fig. 1 and 2, the outer wall of one side of the protection box 1 is connected with a sealing door 5 through a hinge, the outer wall of one side of the protection box 1 is fixed with an observation window 2, the inner wall of one side of the protection box 1 is fixed with a temperature sensor 9 through a screw, and the temperature sensor 9 is electrically connected with a control panel 6; the staff can observe the inside condition of guard box 1 through observation window 2, and temperature sensor 9 can carry out real-time detection to the inside temperature of guard box 1 to show numerical value on the screen, and the model of temperature sensor 9 is GX18B 20.
The working principle is as follows: a worker firstly clamps and fixes a sleeper 14 on the top of a support table 13 through an L-shaped clamp plate 12, then fixes a track body 10 to be tested on the outer wall of the top of the sleeper 14 through bolts, inserts an output shaft of external hydraulic equipment into a protection box 1 through a first guide hole 11, and then connects with one side of the track body 10 through screws, so that resistance testing can be carried out on one end of the track body 10, or inserts the output shaft of the external hydraulic equipment into the protection box 1 through a second guide hole 26, then extrudes the top of the track body 10, and carries out resistance testing on the top of the track body 10, so that stress endurance testing is carried out on the top and two ends of the track body 10, when in testing, the worker can control a nickel-chromium heater 22 to operate through a control panel 6, heat the environment in the protection box 1, so that fatigue performance testing can be carried out on the track body 10 under a high-temperature environment, staff's accessible control panel 6 control nickel-chromium heater 22 closes, and the operation of simultaneous control fan 29 takes the inside steam of guard box 1 out fast, is connected automatically controlled pneumatic valve 28 with outside refrigeration pipeline, closes fan 29 afterwards, opens through control panel 6 control automatically controlled pneumatic valve 28 simultaneously, lets inside the air conditioning entering guard box 1 in the refrigeration pipeline, cools down to guard box 1 inside.
Example 2
A rail transit high-low temperature fatigue comprehensive test bed avoids that a first guide hole 11 or a second guide hole 26 influences the overall sealing performance of a protection box 1; as shown in fig. 1 and 5, the present embodiment is modified from embodiment 1 as follows: a pressing plate 8 is fixed on the outer wall of the top of the protection box 1 through screws, a sealing plug 25 is fixed on the outer wall of the bottom of the pressing plate 8, and the sealing plug 25 is inserted into the inner wall of the second guide hole 26; the size of the second guide hole 26 is consistent with that of the first guide hole 11, the handle 7 is fixed on the outer wall of the top of the pressure plate 8 through screws, the elastic friction pad is bonded on the outer wall of the sealing plug 25, and the ventilation pipe 27 is fixed on the outer wall of one side of the protection box 1; when the staff controlled corresponding equipment through control panel 6 to heat up or cool down the inside of protection box 1, accessible sealing plug 25 blocked up first guiding hole 11 or second guiding hole 26 that will not use temporarily, avoid inside hot air or the cold air of protection box 1 to spill out through first guiding hole 11 or second guiding hole 26 to the outside, the holistic sealing performance of protection box 1 has been improved, ventilation pipe 27 can lead to the air of drawing out when fan 29 moves, when heating or cooling to the inside of protection box 1, can seal ventilation pipe 27 and avoid the inside gas of protection box 1 to spill out through fan 29.
The working principle is as follows: when the staff controls the corresponding equipment to heat up or cool down the inside of the protection box 1 through the control panel 6, the first guide hole 11 or the second guide hole 26 which is not used temporarily can be plugged up through the sealing plug 25, and hot air or cold air in the protection box 1 is prevented from being dispersed outwards through the first guide hole 11 or the second guide hole 26.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. A rail transit high and low temperature fatigue comprehensive test bench comprises a protection box (1) and is characterized in that a support table (13) is fixed on the inner wall of the bottom of the protection box (1), an L-shaped clamp plate (12) is fixed on the outer wall of the top of the support table (13), a sleeper (14) is fixed on the outer wall of one side of the L-shaped clamp plate (12), a rail body (10) is fixed on the outer wall of the top of the sleeper (14), a nickel-chromium heater (22) is fixed on the inner wall of one side of the protection box (1), a circular through hole is formed in the inner wall of one side of the protection box (1), a fan (29) is fixed on the inner wall of the circular through hole, a group of electric control air valves (28) is inserted and connected to the inner wall of one side of the protection box (1), a second guide hole (26) is formed in the outer wall of the top of the protection box (1), a first guide hole (11) is formed in the outer wall of one side of the protection box (1), the inner wall of the bottom of the protection box (1) is provided with a displacement detection mechanism.
2. The rail transit high and low temperature fatigue comprehensive test bench according to claim 1, characterized in that a control panel (6) is fixed on the outer wall of the top of the protection box (1), and the fan (29) and the electric control air valve (28) are respectively electrically connected with the control panel (6).
3. The rail transit high and low temperature fatigue comprehensive test bench according to claim 1, wherein the displacement detection mechanism comprises an upright rod (20), a connecting sleeve (24), a mounting rod (21) and a displacement sensor (23), the upright rod (20) is fixed on the inner wall of the bottom of the protection box (1), the connecting sleeve (24) is slidably connected on the outer wall of the upright rod (20), the outer wall of one side of the connecting sleeve (24) is fixed on the outer wall of the upright rod (20), the mounting rod (21) is slidably connected on the inner wall of the connecting sleeve (24), the displacement sensor (23) is fixed on the outer wall of the mounting rod (21), and the displacement sensor (23) is electrically connected with the control panel (6).
4. The rail transit high and low temperature fatigue comprehensive test bench according to claim 1, characterized in that a connecting plate (15) is fixed on the outer wall of the bottom of the rail body (10), a connecting buckle (16) is welded on the outer wall of one side of the connecting plate (15), a pulling block (19) is rotatably connected on the inner wall of the connecting buckle (16), a pulling rope (18) is fixed on the outer wall of one side of the pulling block (19), and a connecting block (17) is fixed on the outer wall of one side of the pulling rope (18).
5. The rail transit high and low temperature fatigue comprehensive test bench according to claim 3, wherein a bottom plate (3) is fixed on the outer wall of the bottom of the protection box (1), a slide rail (4) is fixed on the outer wall of the top of the bottom plate (3), the slide rail (4) penetrates through the outer wall of one side of the protection box (1), and the support table (13) is slidably connected to the outer wall of the top of the slide rail (4).
6. The rail transit high and low temperature fatigue comprehensive test bench according to claim 5, characterized in that a sealing door (5) is connected to the outer wall of one side of the protection box (1) through a hinge, an observation window (2) is fixed to the outer wall of one side of the protection box (1), a temperature sensor (9) is fixed to the inner wall of one side of the protection box (1), and the temperature sensor (9) is electrically connected with the control panel (6).
7. The rail transit high and low temperature fatigue comprehensive test bench according to claim 6, characterized in that a pressing plate (8) is fixed on the outer wall of the top of the protection box (1), a sealing plug (25) is fixed on the outer wall of the bottom of the pressing plate (8), and the sealing plug (25) is inserted into the inner wall of the second guide hole (26).
8. The rail transit high and low temperature fatigue comprehensive test bench according to claim 7, characterized in that the second guide hole (26) is the same size as the first guide hole (11), the handle (7) is fixed on the outer wall of the top of the pressure plate (8), the elastic friction pad is bonded on the outer wall of the sealing plug (25), and the ventilation pipe (27) is fixed on the outer wall of one side of the protection box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220189592.6U CN216899588U (en) | 2022-01-24 | 2022-01-24 | Rail transit high-low temperature fatigue comprehensive test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220189592.6U CN216899588U (en) | 2022-01-24 | 2022-01-24 | Rail transit high-low temperature fatigue comprehensive test bench |
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| Publication Number | Publication Date |
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| CN216899588U true CN216899588U (en) | 2022-07-05 |
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| CN202220189592.6U Active CN216899588U (en) | 2022-01-24 | 2022-01-24 | Rail transit high-low temperature fatigue comprehensive test bench |
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