CN217973881U - Mechanical property detection equipment for rail transit turnout slide plate - Google Patents
Mechanical property detection equipment for rail transit turnout slide plate Download PDFInfo
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- CN217973881U CN217973881U CN202222048857.3U CN202222048857U CN217973881U CN 217973881 U CN217973881 U CN 217973881U CN 202222048857 U CN202222048857 U CN 202222048857U CN 217973881 U CN217973881 U CN 217973881U
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Abstract
A rail transit turnout slide plate mechanical property detection device comprises a flat test platform, wherein an experimental area for placing a turnout slide plate is arranged on the test platform, the turnout slide plate comprises a slide plate table and a bottom plate, a plurality of anchor bolts and matched nuts for fixing the bottom plate of the turnout slide plate on the test platform, a loading support table, a reaction frame, a force sensor and a loading device are further arranged, the loading support table is arranged on the bottom plate of the turnout slide plate, and the reaction frame is arranged on the test platform; therefore, the utility model can carry out strength detection on the tongue depressor of the sliding bed platform of the turnout sliding bed plate, and evaluate the bending strength of the heel part of the tongue depressor; the tensile connection strength between the upper structure and the lower structure of the sliding bed platform is evaluated by detecting the connection strength between the sliding bed platform and the bottom plate of the turnout sliding bed plate. The two tests comprehensively concern the ultimate strength and the resistance of the slide plate when the turnout stock rail is subjected to a large transverse force.
Description
Technical Field
The utility model relates to a technical field that track traffic track structure detected especially relates to a track traffic switch slide chair mechanical properties check out test set.
Background
The turnout is a rail transit line connecting device which can lead a locomotive and a vehicle to be switched from one track to another track, and is an indispensable important component in a railway track. The turnout has the advantages that the turnout parts are numerous, the stress is complex, the structure is weak, particularly the turnout switch part with frequent switching, strong impact and vibration between wheels and rails caused when a train passes through can aggravate the power action between the wheels and the switch rails and between the switch rails and the slide plate, the working condition of the turnout is worsened, the service life of the turnout part parts is reduced, and the maintenance workload of the turnout is increased.
The turnout slide plate has the functions of supporting a switch rail, preventing a stock rail from overturning, connecting with a foundation (a sleeper or a track bed) and the like, directly bears the load from a steel rail, is easy to generate the problems of fracture of a pressure tongue, welding separation of a bedplate and a bottom plate and the like, and is a main disease of a turnout area of rail traffic. At present, the turnout slide plate has different degrees of diseases on a plurality of rail transit operation lines in China, has certain influence on driving safety, and is generally concerned in the industry.
For relevant mechanical characteristics of the problems of the diseases, corresponding indoor testing equipment and a corresponding method are lacked at present, so that detection of products in a factory leaving stage cannot be carried out, and effective control on the quality of the turnout slide plate cannot be carried out.
Therefore, in view of the above defects, the designer of the utility model researches and designs a mechanical property detection device for rail transit turnout slide plate by integrating the experience and achievement of long-term related industries through careful research and design to overcome the above defects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a track traffic switch slide chair mechanical properties check out test set, its simple structure, convenient operation effectively overcomes prior art's defect, but convenient and fast carries out mechanical properties to track traffic switch slide chair and detects.
In order to achieve the above purpose, the utility model discloses a rail transit switch slide chair mechanical properties check out test set, including a platelike test platform be equipped with the experimental area of placing the switch slide chair on the test platform, its characterized in that:
switch slide plate contains slide bed platform and bottom plate, the bottom plate is flat and is located the experimental area, the slide bed platform is located the upper surface of bottom plate to and a plurality of anchor bolt and the supporting nut that are fixed in test platform with the bottom plate of switch slide plate, anchor bolt is located the both sides of slide bed platform on the bottom plate respectively, just be equipped with the confession on the test platform the fixed through-hole of anchor bolt to and an experimental round steel, experimental round steel sets up in the tongue depressor position of slide bed platform, the tongue depressor position outwards extends from the upper end of slide bed platform.
Wherein: and the anchoring bolt is sleeved with a gasket.
Wherein: still be equipped with load supporting bench, reaction frame, force transducer and loading device, load supporting bench sets up on the bottom plate of switch slide bed board, the reaction frame sets up on test platform and spans passageway switch slide bed board and load supporting bench to and cylindrical pin, cylindrical pin runs through the cotter hole and the reaction frame of switch slide bed board, the last force transducer that sets up of load supporting bench is provided with loading device between force transducer and reaction frame.
Wherein: the loading support platform is a frame-shaped sliding bed platform with a lower opening and spans the aisle turnout sliding bed plate.
Wherein: the reaction frame is a structure of 20866shape formed by 3 steel plates with the thickness not less than 10mm which are mutually rigidly connected, wherein the length of the top plate at the upper end is longer than the width of the turnout slide plate and the loading support platform and is less than the length of the cylindrical pin, and the lengths of the side plates at the two sides are the same.
Wherein: rectangular holes with the same height are respectively formed in the positions, close to the bottom, of the side plates of the reaction frame, so that cylindrical pins can penetrate through the rectangular holes, and the reaction frame stretches across the turnout slide plate and stretches across the loading support table.
Wherein: the loading support platform and the reaction frame are arranged in a staggered mode by 90 degrees.
Wherein: the loading device is a hydraulic loading device.
According to the content, the utility model discloses a track traffic switch slide chair mechanical properties check out test set has following effect:
1. simple structure, convenient operation, it is convenient to maintain, can be effectively quick detect switch slide chair mechanical properties.
2. The bending strength of the heel part of the tongue depressor can be evaluated by detecting the strength of the tongue depressor of the sliding bed table of the turnout sliding bed plate; the tensile connection strength between the upper structure and the lower structure of the sliding bed platform is evaluated by detecting the connection strength between the sliding bed platform and the bottom plate of the turnout sliding bed plate. The two tests comprehensively concern the ultimate strength and the resistance of the slide chair plate when the turnout stock rail is subjected to a larger transverse force.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
Fig. 1 shows the utility model discloses a track traffic switch slide bed board mechanical properties check out test set's top view.
Fig. 2 shows a front view of the present invention.
Fig. 3 shows a side view of another embodiment of the present invention.
Fig. 4 shows a front view of another embodiment of the present invention.
Detailed Description
Referring to fig. 1 and fig. 2, the mechanical property detection device for the slide plate of the track switch in rail transit is shown.
Track traffic switch slide chair mechanical properties check out test set includes a platelike test platform 9 be equipped with the experimental area of placing switch slide chair 1 on the test platform 9, switch slide chair 1 contains slide chair platform 101 and bottom plate 102, bottom plate 102 is flat and is located the experimental area, slide chair platform 101 is located the upper surface of bottom plate 102 to and a plurality of anchor bolt 3 and the supporting nut that are fixed in test platform 9 with the bottom plate 102 of switch slide chair 1, anchor bolt 3 is located the both sides of slide chair platform 101 on bottom plate 102 respectively, just be equipped with the confession on the test platform 9 anchor bolt 3 fixed through-hole to and an experimental round steel 2, experimental round steel 2 sets up in the tongue-pressing position of slide chair platform 101, the tongue-pressing position outwards extends from the upper end of slide chair platform 101.
Wherein, the anchor bolt 3 can also be sleeved with a gasket.
The utility model discloses when concrete test, place round steel 2, earlier with the used switch slide plate 1 of experiment, round steel 2, anchor bolt 3 and experimental equipment in experimental environment (20 ℃ -25 ℃) 24h that stew, then be fixed in rigidity test platform 9 with switch slide plate 1 through anchor bolt 3 and supporting nut on, place experimental round steel 2 (force application zone is the Px in figure 1) behind slide plate pressure tongue position at slide plate 101 pressure tongue position effect decurrent load P (see figure 2), loading rate is 9kN/min ~ 10kN/min, take place fracture or yield deformation to the pressure tongue position of slide plate 101 till, record the load peak value this moment, with this mechanical properties who obtains the slide plate board.
Wherein it is individual, as shown in fig. 3 and fig. 4, show the utility model discloses an another embodiment, except the test platform in fig. 1 and fig. 2, still be equipped with load supporting bench 5, reaction frame 6, force sensor 7 and loading device 8, load supporting bench 5 sets up on switch slide plate 1's bottom plate 102, reaction frame 6 sets up on test platform 9 and spanes passageway switch slide plate 1 and load supporting bench 5 to and cylindrical pin 4, cylindrical pin 4 runs through switch slide plate 1's pin hole and reaction frame 6, be provided with force sensor 7 on the load supporting bench 5, be provided with loading device 8 between force sensor 7 and reaction frame 6.
The loading support platform 5 is a frame-shaped slide bed platform 101 with a lower opening and crossing the aisle turnout slide bed board 1.
The reaction frame 6 is a 20866shaped structure formed by 3 steel plates with the thickness not less than 10mm which are mutually rigidly connected, wherein the length of the top plate at the upper end is longer than the width of the turnout slide plate and the loading support platform and is less than the length of the cylindrical pin, the length of the side plates at the two sides is the same, rectangular holes with the same height are respectively arranged at the positions close to the bottom for the cylindrical pin 4 to penetrate through, and the reaction frame crosses the turnout slide plate and crosses over the loading support platform.
Wherein, the loading support table 5 and the reaction frame 6 are arranged by 90 degrees in a staggered way.
Wherein, the loading device 8 is a hydraulic loading device.
Therefore, firstly, the turnout slide plate 1, the cylindrical pin 4, the anchor bolt 3 and other equipment for test used in the test are placed still for 24 hours in a test environment (20-25 ℃) (or the tongue pressing strength detection of the slide plate table of the turnout slide plate is completed), then the turnout slide plate 1 is fastened to a rigid test platform 9 through the anchor bolt 3 and a matched nut, a loading support table 5 and a reaction frame 6 are sequentially placed, the cylindrical pin 4 penetrates through a pin hole in the side surface of the slide plate 101 of the turnout slide plate 1 and rectangular holes in two sides of the reaction frame 6, and a force sensor 7 and a loading device 8 are sequentially placed on the loading support table 5; and step four, applying an upward load P to the reaction frame 6 and driving the cylindrical pin 4 to move, zeroing the force sensor to counteract the influence of the gravity of the reaction frame 6 and the cylindrical pin 4, continuously loading at a speed of 9 kN/min-10 kN/min until the sliding bed table 101 and the bottom plate 102 of the turnout sliding bed plate 1 are cracked or the sliding bed table 101 is broken or the bottom plate 102 is obviously bent and deformed, and recording the load peak value at the moment.
Therefore, the utility model is used for railway engineering structure detection area integrates each basic test's characteristics, has formed and has been applicable to rail transit switch slide chair mechanical properties check out test set and method, has solved the problem that switch slide chair lacks the relevant indoor check out test set of mechanical properties and method. Through the utility model discloses, realized the check out test set method that is applicable to switch slide chair mechanical properties, the thinking is clear, and the flow is clear and definite.
The utility model discloses a theory of operation does: the turnout slide plate and the test equipment used in the test are kept still for 24 hours in the test environment, so that the influence of temperature on the performance of each equipment and the test object is eliminated, and the physical performance of the test equipment and the test object is ensured to be equivalent to that of the test equipment and the test object under the room temperature condition; the hydraulic cylinder of the loading device is placed above the sensor, and the piston faces upwards. During loading, the piston of the hydraulic cylinder is ejected upwards and contacts with the bottom of the top plate of the reaction frame, and the piston of the hydraulic cylinder pushes the reaction frame to move upwards when the loading is continued until the lower edge of the side limb hole of the reaction frame contacts with the cylindrical pin. And continuing loading, wherein the reaction frame moves upwards, because the two ends of the cylindrical pin are supported at the bottom of the inner edge of the hole of the side limb steel plate of the reaction frame, the reaction frame drives the cylindrical pin to move upwards, when the cylindrical pin just moves but does not contact any part of the pin hole of the sliding bed table, the load applied by the loading device is equal to the gravity of the reaction frame and the cylindrical pin, at the moment, the load value of the force sensor is reset to zero and is continuously loaded, because the cylindrical pin transversely penetrates through the pin hole of the sliding bed table, after the cylindrical pin contacts with the upper edge of the pin hole, the sliding bed table limits the displacement of the cylindrical pin, a counter-force is formed between the cylindrical pin and the sliding bed table, the load displayed by the force sensor is the vertical upward force applied to the sliding bed table, the loading is continued until an expected state occurs, the loading is stopped, and at the moment, the peak load value recorded by the force sensor is the connection strength between the bedplate and the bottom plate.
It is to be understood that the above description and illustrations are exemplary only and are not intended to limit the present disclosure, application, or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention is intended to include any embodiments that fall within the foregoing description and the appended claims.
Claims (8)
1. The utility model provides a track traffic switch slide chair mechanical properties check out test set, includes a platelike test platform be equipped with the experimental area of placing the switch slide chair on the test platform, its characterized in that:
switch slide chair contains slide chair platform and bottom plate, the bottom plate is flat and is located the experimental area, the slide chair platform is located the upper surface of bottom plate to and a plurality of anchor bolt and the supporting nut that are fixed in test platform with the bottom plate of switch slide chair, anchor bolt is located the both sides of slide chair platform on the bottom plate respectively, just be equipped with the confession on the test platform anchor bolt fixed through-hole to and an experimental round steel, experimental round steel sets up in the tongue pressing position of slide chair platform, the tongue pressing position outwards extends from the upper end of slide chair platform.
2. The rail transit turnout slide plate mechanical property detection equipment of claim 1, which is characterized in that: and the anchoring bolt is sleeved with a gasket.
3. The rail transit turnout slide chair mechanical property detection equipment of claim 1, which is characterized in that: still be equipped with a loading supporting bench, reaction frame, force transducer and loading device, a loading supporting bench sets up on the bottom plate of switch slide bed board, the reaction frame sets up on test platform and crosses passageway switch slide bed board and a loading supporting bench to and cylindrical pin, cylindrical pin runs through the cotter hole and the reaction frame of switch slide bed board, be provided with force transducer on the loading supporting bench, be provided with loading device between force transducer and reaction frame.
4. The rail transit turnout slide plate mechanical property detection equipment of claim 3, wherein: the loading support platform is a frame-shaped sliding bed platform with a lower opening and spans across the aisle turnout sliding bed plate.
5. The rail transit turnout slide plate mechanical property detection equipment of claim 3, wherein: the reaction frame is a 20866shaped structure formed by 3 steel plates with the thickness not less than 10mm which are mutually rigidly connected, wherein the length of the top plate at the upper end is longer than the width of the turnout slide plate and the loading support platform and is less than the length of the cylindrical pin, and the length of the side plates at the two sides is the same.
6. The rail transit turnout slide chair mechanical property detection equipment of claim 5, which is characterized in that: rectangular holes with the same height are respectively formed in the positions, close to the bottom, of the side plates of the reaction frame, so that cylindrical pins can penetrate through the rectangular holes, and the reaction frame stretches across the turnout slide plate and stretches across the loading support table.
7. The rail transit turnout slide plate mechanical property detection equipment of claim 3, wherein: the loading support table and the reaction frame are arranged in a staggered mode by 90 degrees.
8. The rail transit turnout slide chair mechanical property detection equipment of claim 3, which is characterized in that: the loading device is a hydraulic loading device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222048857.3U CN217973881U (en) | 2022-08-05 | 2022-08-05 | Mechanical property detection equipment for rail transit turnout slide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222048857.3U CN217973881U (en) | 2022-08-05 | 2022-08-05 | Mechanical property detection equipment for rail transit turnout slide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217973881U true CN217973881U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222048857.3U Active CN217973881U (en) | 2022-08-05 | 2022-08-05 | Mechanical property detection equipment for rail transit turnout slide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217973881U (en) |
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2022
- 2022-08-05 CN CN202222048857.3U patent/CN217973881U/en active Active
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