CN211897611U - Close-fitting type elastic curing track system - Google Patents
Close-fitting type elastic curing track system Download PDFInfo
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- CN211897611U CN211897611U CN202020157973.7U CN202020157973U CN211897611U CN 211897611 U CN211897611 U CN 211897611U CN 202020157973 U CN202020157973 U CN 202020157973U CN 211897611 U CN211897611 U CN 211897611U
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- 241001669679 Eleotris Species 0.000 claims abstract description 87
- 238000004891 communication Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 abstract description 18
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000005056 compaction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 description 9
- 230000008023 solidification Effects 0.000 description 9
- 229920002635 polyurethane Polymers 0.000 description 7
- 239000004814 polyurethane Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Abstract
The utility model provides a close formula elastic curing track system that pastes, including sleeper (1), first railway roadbed piece (2) and second railway roadbed piece (3), first railway roadbed piece (2) with second railway roadbed piece (3) set up respectively in sleeper (1) both ends lower surface, first railway roadbed piece (2) with sleeper (1) second railway roadbed piece (3) with sleeper (1) is the monolithic structure of close subsides. The utility model adopts an integral structure, which improves the integrity of the ballast bed; the railway ballast is compacted and well attached to the sleeper by combining the standard mould with the pressure equipment, so that good conditions are provided for pouring of the curing material; reasonable compactness control of a discrete ballast bed at the lower part of the curing ballast bed unit is realized through the combination of a pressurizing device and a mold; and checking the compaction state in the preparation process of the ballast stone, so as to accurately control and evaluate the mechanical state of the aggregate of the elastic curing ballast bed.
Description
Technical Field
The utility model relates to a track field, concretely relates to solidification track system.
Background
The traditional ballast track structure has a series of advantages of strong maintainability, good elasticity and the like, but due to the characteristics of the granular bodies forming the ballast bed, the problems of weak capability of maintaining the geometric state of the track, difficult control of the compact state of the ballast particles and the like exist. In addition, the compactness of discrete body ballast particles in the ballast track structure is a key factor for determining the mechanical property and the later accumulated deformation of the ballast bed, for example, the discrete body ballast bed achieves reasonable compactness by means of prefabrication in a factory and the like, and the structure is reinforced by pouring polyurethane, so that the mechanical property of the ballast bed can be improved, the degradation of the ballast bed can be delayed, and the purposes of daily maintenance and repair such as tamping, screening and the like of a line are avoided. However, how to make the bulk ballast achieve reasonable compactness and connect with the upper sleeper structure as a whole is a key difficulty of the technology.
A close-contact elastic curing track system is needed, which can realize the control of the compactness of the three-body railway ballast and is connected with an upper sleeper structure.
Disclosure of Invention
The utility model discloses a solve among the prior art bulk material railway ballast and reach the difficult control of reasonable closely knit degree to link up for holistic problem with upper portion sleeper structure, provide a close formula elastic curing track system, through the mode of carrying out the vibration in the punching press, solved above-mentioned problem.
The utility model provides a close-fitting type elastic curing track system, which comprises a sleeper, a first track bed block and a second track bed block, wherein the first track bed block and the second track bed block are respectively arranged on the lower surfaces of two ends of the sleeper, the first track bed block comprises a first track bed block body and a first mounting groove, the first track bed block body is a cube, the first mounting groove is arranged on the upper surface of the first track bed block body, the first mounting groove is opened on two adjacent surfaces of the first track bed block body, and one side end part of the sleeper is arranged in the first mounting groove; the second track bed block comprises a second track bed block body and a second mounting groove, the second track bed block body is a cube, the second mounting groove is formed in the upper surface of the second track bed block body, the second mounting groove is formed in openings in two adjacent surfaces of the second track bed block body, and the end of the other side of the sleeper is arranged in the second mounting groove; the first track bed block and the sleeper, and the second track bed block and the sleeper are of a closely-attached integral structure.
The solidification railway bed aggregate and the integrated molding of sleeper structure for solidification track system has better wholeness, and the railway bed piece is convenient for production and transportation with the sleeper integral type, has effectively reduced the required process of job site simultaneously, makes solidification railway bed unit installation and change more effective. The original track bed is paved on site and rolled by a road roller. After the prior prefabrication process, the compactness of the ballast bed can be improved by more than 1 time.
A close formula elastic curing track system, as preferred mode, close formula elastic curing track system still includes closely knit device, the sleeper, first way bed piece and second railway bed piece set up inside closely knit device, closely knit device includes the portal, at least one even roof beam, the crossbeam, a mold, first pressure device, second pressure device and base, the sleeper, first way bed piece and second railway bed piece all set up inside the mould, the mould sets up in the base upper surface, mould both ends upper surface is provided with the through-hole, first pressure device and second pressure device set up respectively in the through-hole position at mould both ends, crossbeam one end is connected to first pressure device upper end, the other end of crossbeam is connected to second pressure device upper end, even roof beam is connected perpendicularly to the crossbeam, even roof beam sets up in portal middle part lower surface.
The track bed raw materials are graded broken stone aggregates, the sleepers are placed upside down in advance, then the track bed raw materials are stamped on the upper surfaces of the two ends of the poured sleepers, compactness is controlled, and polyurethane is injected into the compacted railway ballast after stamping.
The density processing of the track bed raw materials is finished on the sleeper junction surface by inversely placing the sleeper, the density can not be changed again due to movement, and the track bed has higher integrity and better density effect.
A close formula elasticity solidification track system, as preferred mode, the mould includes first way bed piece mould, second way bed piece mould and sleeper mould, first way bed piece mould and second way bed piece mould are the rectangle mould, the sleeper mould transversely sets up, first way bed piece mould sets up in sleeper mould tip upper surface, second way bed piece mould corresponds first way bed piece mould position and sets up in sleeper mould tip upper surface, sleeper mould lower surface, first way bed piece mould upper surface and second way bed piece mould upper surface take out the shell intercommunication.
A close formula elasticity solidification track system that pastes, as preferred mode, first way bed piece sets up inside first way bed piece mould, the second railway bed piece sets up inside second railway bed piece mould, the sleeper sets up inside the sleeper mould, the sleeper is put down in the sleeper mould, first railway bed piece is put down in first way bed piece mould, the second railway bed piece is put down in second railway bed piece mould.
The mould is designed according to the stress distribution envelope line at the lower part of the sleeper, covers the main bearing area and saves materials.
A close formula elastic curing track system that pastes, as preferred mode, first pressure device includes first hydraulic rod spare, first loading is dull and stereotyped and first vibrating device, first loading is dull and stereotyped to be set up in first railway roadbed piece lower surface, first hydraulic rod spare lower extreme sets up perpendicularly in the dull and stereotyped upper surface of first loading, first hydraulic rod spare upper end sets up in a crossbeam tip lower surface, first vibrating device sets up in the dull and stereotyped upper surface of first loading.
A close formula elasticity solidification track system that pastes, as preferred mode, second pressure device includes second hydraulic rod spare, second loading is dull and stereotyped and second vibrating device, the second loading is dull and stereotyped to be set up in second railway roadbed piece lower surface, second hydraulic rod spare lower extreme sets up perpendicularly in the dull and stereotyped upper surface of second loading, second hydraulic rod spare upper end sets up in another tip lower surface of crossbeam, second vibrating device sets up in the dull and stereotyped upper surface of second loading.
Reasonable compactness control of the discrete ballast bed at the lower part of the curing ballast bed unit is realized through the combination of the pressurizing equipment and the die. Vibrate in the punching press, reduce the space between the rubble, and then promote closely knit degree, avoid polyurethane to form the gas pocket in railway roadbed piece forming process simultaneously, improve closely knit degree, the bearing capacity of railway roadbed piece sleeper integral unit.
A close formula elasticity solidification track system, as preferred mode, base upper surface and sleeper upper surface shape cooperation set up.
A close formula elasticity solidification track system, as preferred mode, first pressure device, second pressure device and be provided with the pressure sensor who gathers real-time data on linking the roof beam.
And checking the compaction state in the preparation process of the ballast stone, so as to accurately control and evaluate the mechanical state of the aggregate of the elastic curing ballast bed.
The utility model discloses beneficial effect as follows:
(1) the railway ballast is compacted and well attached to the sleeper by combining the standard mould with the pressure equipment, so that good conditions are provided for pouring of the curing material;
(2) reasonable compactness control of a discrete ballast bed at the lower part of the curing ballast bed unit is realized through the combination of a pressurizing device and a mold;
(3) checking the compaction state in the preparation process of the ballast stone, and further realizing the accurate control and evaluation of the mechanical state of the aggregate of the elastic curing ballast bed;
(4) the closely knit device of using the inverted sleeper reduces the removal to sleeper and railway roadbed piece through the mode of inverted putting among the closely knit process, obtains higher closely knit degree from this.
Drawings
FIG. 1 is a schematic view of an embodiment 1 of a conformable elastomeric track system;
FIG. 2 is a schematic view of a first bed block of a close-coupled elastic curing track system;
FIG. 3 is a schematic view of a second track bed block of a close-coupled elastic curing track system;
FIG. 4 is a schematic view of an embodiment 2 of a conformable elastomeric curing track system;
FIG. 5 is a schematic view of a compacting apparatus for a close-fitting elastic curing track system;
FIG. 6 is a schematic view of a mold for a close-fitting elastic curing track system;
FIG. 7 is a schematic view of a first pressing device of a close-coupled elastic curing track system;
FIG. 8 is a schematic view of a second pressing device of a close-coupled elastic curing track system.
Reference numerals:
1. a sleeper; 2. a first bed block; 21. a first bed block body 22 and a first mounting groove; 3. a second track bed block; 31. a second track bed block body; 32. a second mounting groove; 4. compacting the device; 41. a gantry; 42. connecting the beams; 43. a cross beam; 44. a mold; 441. a first bed block mold; 442. a second track bed block mold; 443. a sleeper mold; 45. a first pressurizing device; 451. a first hydraulic rod member; 452. a first loading plate; 453. a first vibrating device; 46. a second pressurizing device; 461. a second hydraulic rod member; 462. a second loading plate; 463. a second vibrating device; 47. a base.
Detailed Description
The technical solutions in the embodiments of the present invention will be made clear below by referring to the attached drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
As shown in figure 1, the close-contact type elastic curing track system comprises a sleeper 1, a first track bed block 2 and a second track bed block 3, wherein the first track bed block 2 and the second track bed block 3 are respectively arranged on the lower surfaces of two ends of the sleeper 1.
As shown in fig. 2, the first track bed block 2 includes a first track bed block body 21 and a first mounting groove 22, the first track bed block body 21 is a cube, the first mounting groove 22 is disposed on the upper surface of the first track bed block body 21, the first mounting groove 22 is opened on two adjacent surfaces of the first track bed block body 21, and one side end of the sleeper 1 is disposed in the first mounting groove 22.
As shown in fig. 3, the second track bed block 3 includes a second track bed block body 31 and a second mounting groove 32, the second track bed block body 31 is a cube, the second mounting groove 32 is disposed on the upper surface of the second track bed block body 31, the second mounting groove 32 is opened on two adjacent surfaces of the second track bed block body 31, and the other end of the sleeper 1 is disposed in the second mounting groove 32; the first track bed block 2 and the sleeper 1, and the second track bed block 3 and the sleeper 1 are of a closely-attached integral structure.
The production preparation method of this example is as follows:
s1, placing gravels with preset gradation and weight in a rectangular ballast bed mold;
s2, placing a loading flat plate on the upper surface of the broken stone in the ballast bed mold;
s3, loading the broken stone through a loading flat plate, and meanwhile, arranging a vibrating device on the upper surface of the loading flat plate to vibrate the broken stone so as to change the compactness;
s4, injecting polyurethane into the broken stone;
s5, placing the sleeper on the top end of the broken stone, and compacting again.
The embodiment is convenient to produce and suitable for the condition that the compactness demand is small.
Example 2
As shown in figure 4, a close-contact type elastic curing track system comprises a sleeper 1, a first ballast bed block 2, a second ballast bed block 3 and a compacting device 4, wherein the sleeper 1, the first ballast bed block 2 and the second ballast bed block 3 are arranged inside the compacting device 4, and the first ballast bed block 2 and the second ballast bed block 3 are respectively arranged on the lower surfaces of two ends of the sleeper 1.
As shown in fig. 2, the first track bed block 2 includes a first track bed block body 21 and a first mounting groove 22, the first track bed block body 21 is a cube, the first mounting groove 22 is disposed on the upper surface of the first track bed block body 21, the first mounting groove 22 is opened on two adjacent surfaces of the first track bed block body 21, and one side end of the sleeper 1 is disposed in the first mounting groove 22.
As shown in fig. 3, the second track bed block 3 includes a second track bed block body 31 and a second mounting groove 32, the second track bed block body 31 is a cube, the second mounting groove 32 is disposed on the upper surface of the second track bed block body 31, the second mounting groove 32 is opened on two adjacent surfaces of the second track bed block body 31, the other end of the sleeper 1 is disposed in the second mounting groove 32
The first track bed block 2 and the sleeper 1, and the second track bed block 3 and the sleeper 1 are of a closely-attached integral structure.
As shown in fig. 5, the compacting device 4 includes a gantry 41, at least one connecting beam 42, a cross beam 43, a mold 44, a first pressurizing device 45, a second pressurizing device 46 and a base 47, the sleeper 1, the first track bed block 2 and the second track bed block 3 are all disposed inside the mold 44, the mold 44 is disposed on the upper surface of the base 47, through holes are disposed on the upper surfaces of the two ends of the mold 44, the first pressurizing device 45 and the second pressurizing device 46 are respectively disposed at the through holes of the two ends of the mold 44, the upper end of the first pressurizing device 45 is connected with one end of the cross beam 43, the upper end of the second pressurizing device 46 is connected with the other end of the cross beam 43, the cross beam 43 is vertically connected with the connecting beam 42, and the connecting.
As shown in fig. 6, the mold 44 includes a first track bed block mold 441, a second track bed block mold 442 and a sleeper mold 443, each of the sleeper mold 443, the first track bed block mold 441 and the second track bed block mold 442 is a rectangular mold 44, the sleeper mold 443 is transversely disposed, the first track bed block mold 441 is disposed on an upper surface of an end portion of the sleeper mold 443, the second track bed block mold 442 is disposed on an upper surface of an end portion of the sleeper mold 443 corresponding to a position of the first track bed block mold 441, and a lower surface of the sleeper mold 443, an upper surface of the first track bed block mold 441 and an upper surface of the second track bed block mold 442 are in shell-drawing communication with each other. The first ballast bed block 2 is arranged inside the first ballast bed block die 441, the second ballast bed block 3 is arranged inside the second ballast bed block die 442, the sleeper 1 is arranged inside the sleeper die 443, the sleeper 1 is placed upside down in the sleeper die 443, the first ballast bed block 2 is placed upside down in the first ballast bed block die 441, and the second ballast bed block 3 is placed upside down in the second ballast bed block die 442.
As shown in fig. 7, the first pressurizing device 45 includes a first hydraulic rod element 451, a first loading plate 452, and a first vibrating device 453, the first loading plate 452 is disposed on the lower surface of the first bed block 2, the lower end of the first hydraulic rod element 451 is vertically disposed on the upper surface of the first loading plate 452, the upper end of the first hydraulic rod element 451 is disposed on the lower surface of one end of the cross member 43, and the first vibrating device 453 is disposed on the upper surface of the first loading plate 452.
As shown in fig. 8, the second pressurizing device 46 includes a second hydraulic rod 461, a second loading plate 462 and a second vibrating device 463, the second loading plate 462 is disposed on the lower surface of the second track bed block 3, the lower end of the second hydraulic rod 461 is vertically disposed on the upper surface of the second loading plate 462, the upper end of the second hydraulic rod 461 is disposed on the lower surface of the other end of the beam 43, and the second vibrating device 463 is disposed on the upper surface of the second loading plate 462.
The upper surface of the base 47 is matched with the upper surface of the sleeper 1 in shape. The first pressurizing device 45, the second pressurizing device 46 and the connecting beam 42 are provided with pressure sensors for acquiring real-time data.
The method of use of this example is as follows:
s1, turning over a sleeper by 180 degrees, placing the sleeper in a mold of a preparation device, and inversely placing the upper surface of the sleeper on the upper surface of a base;
s2, placing gravels with preset gradation and weight through a through hole discharge port in the upper surface of a first track bed block mold and a through hole discharge port in the upper surface of a second track bed block mold, which are positioned on the upper surfaces of two ends of the inverted sleeper, at the upper end of the mold;
s3, lowering the first hydraulic rod piece and the second hydraulic rod piece, and pressing a first loading flat plate at the bottom end of the first hydraulic rod piece and a second loading flat plate at the bottom end of the second hydraulic rod piece on the upper surface of the crushed stone;
s4, setting the amplitude and the frame frequency of a first vibrating device on the upper surface of the first loading flat plate and a second vibrating device on the upper surface of the second loading flat plate according to the grading and the quality of the required ballast;
s5, pressurizing through a first hydraulic rod piece and a second hydraulic rod piece, and vibrating through a first vibrating device and a second vibrating device to adjust the compactness of the crushed stone;
s6, lifting the first hydraulic rod piece and the second hydraulic rod piece, and separating the upper surface of the broken stone from the lower surfaces of the first loading flat plate and the second loading flat plate;
s7, checking whether the crushed stone reaches a preset preparation height, and if so, performing step S3; and if the preset preparation height is not reached, repeating the steps S3 to S7.
S8, injecting polyurethane into the compacted broken stone;
s9, lowering the first hydraulic rod piece and the second hydraulic rod piece, and pressing a first loading flat plate at the bottom end of the first hydraulic rod piece and a second loading flat plate at the bottom end of the second hydraulic rod piece on the upper surface of the crushed stone;
s10, pressurizing the broken stone through a first hydraulic rod piece and a second hydraulic rod piece, and compacting the broken stone and polyurethane;
s11, demolding the track bed forming the close-contact elastic curing unit and the broken stone which is added with polyurethane and adhered to the lower surface of the track bed;
s12, reversing the position by 180 degrees and rightly placing the close-contact elastic curing unit.
This embodiment adopts the mode of putting upside down for contact is inseparabler between sleeper and the railway ballast under the circumstances of putting upside down, does not need to remove many times, reduces the closely knit degree influence of railway ballast for the higher condition of closely knit degree demand.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A close-fitting type elastic curing track system is characterized in that: the sleeper structure comprises a sleeper (1), a first track bed block (2) and a second track bed block (3), wherein the first track bed block (2) and the second track bed block (3) are respectively arranged on the lower surfaces of two ends of the sleeper (1), the first track bed block (2) comprises a first track bed block body (21) and a first mounting groove (22), the first track bed block body (21) is cubic, the first mounting groove (22) is formed in the upper surface of the first track bed block body (21), the first mounting groove (22) is opened in two adjacent surfaces of the first track bed block body (21), and one side end part of the sleeper (1) is arranged in the first mounting groove (22); the second track bed block (3) comprises a second track bed block body (31) and a second mounting groove (32), the second track bed block body (31) is cubic, the second mounting groove (32) is formed in the upper surface of the second track bed block body (31), the second mounting groove (32) is opened in two adjacent surfaces of the second track bed block body (31), and the end of the other end of the sleeper (1) is arranged in the second mounting groove (32); the first track bed block (2) and the sleeper (1), the second track bed block (3) and the sleeper (1) are of a close-contact integral structure.
2. A conformable elastomeric curing track system according to claim 1, wherein: the close-fitting elastic curing track system further comprises a compacting device (4), the sleeper (1), the first track bed block (2) and the second track bed block (3) are arranged inside the compacting device (4), the compacting device (4) comprises a portal (41), at least one connecting beam (42), a cross beam (43), a mold (44), a first pressurizing device (45), a second pressurizing device (46) and a base (47), the sleeper (1), the first track bed block (2) and the second track bed block (3) are arranged inside the mold (44), the mold (44) is arranged on the upper surface of the base (47), through holes are formed in the upper surfaces of two ends of the mold (44), the first pressurizing device (45) and the second pressurizing device (46) are respectively arranged at through hole positions at two ends of the mold (44), the upper end of the first pressurizing device (45) is connected with one end of the cross beam (43), the upper end of the second pressurizing device (46) is connected with the other end of the cross beam (43), the cross beam (43) is vertically connected with the connecting beam (42), and the connecting beam (42) is arranged on the lower surface of the middle part of the portal frame (41).
3. A conformable elastomeric curing track system according to claim 2, wherein: the mould (44) comprises a first track bed block mould (441), a second track bed block mould (442) and a sleeper mould (443), the first track bed block mould (441) and the second track bed block mould (442) are rectangular moulds (44), the sleeper mould (443) is transversely arranged, the first track bed block mould (441) is arranged on the upper surface of the end part of the sleeper mould (443), the second track bed block mould (442) is arranged on the upper surface of the end part of the sleeper mould (443) corresponding to the position of the first track bed block mould (441), and the lower surface of the sleeper mould (443), the upper surface of the first track bed block mould (441) and the upper surface of the second track bed block mould (442) are in shell-drawing communication.
4. A conformable elastomeric curing track system according to claim 3, wherein: the first ballast block (2) is arranged inside the first ballast block mold (441), the second ballast block (3) is arranged inside the second ballast block mold (442), the sleeper (1) is arranged inside the sleeper mold (443), the sleeper (1) is placed upside down in the sleeper mold (443), the first ballast block (2) is placed upside down in the first ballast block mold (441), and the second ballast block (3) is placed upside down in the second ballast block mold (442).
5. A conformable elastomeric curing track system according to claim 2, wherein: the first pressurizing device (45) comprises a first hydraulic rod (451), a first loading flat plate (452) and a first vibrating device (453), wherein the first loading flat plate (452) is arranged on the lower surface of the first track bed block (2), the lower end of the first hydraulic rod (451) is vertically arranged on the upper surface of the first loading flat plate (452), the upper end of the first hydraulic rod (451) is arranged on the lower surface of one end of the cross beam (43), and the first vibrating device (453) is arranged on the upper surface of the first loading flat plate (452).
6. A conformable elastomeric curing track system according to claim 5, wherein: the second pressurizing device (46) comprises a second hydraulic rod (461), a second loading plate (462) and a second vibrating device (463), the second loading plate (462) is arranged on the lower surface of the second track bed block (3), the lower end of the second hydraulic rod (461) is vertically arranged on the upper surface of the second loading plate (462), the upper end of the second hydraulic rod (461) is arranged on the lower surface of the other end of the cross beam (43), and the second vibrating device (463) is arranged on the upper surface of the second loading plate (462).
7. A conformable elastomeric curing track system according to claim 2, wherein: the upper surface of the base (47) is matched with the upper surface of the sleeper (1) in shape.
8. A conformable elastomeric curing track system according to claim 2, wherein: and pressure sensors for acquiring real-time data are arranged on the first pressurizing device (45), the second pressurizing device (46) and the connecting beam (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020157973.7U CN211897611U (en) | 2020-02-10 | 2020-02-10 | Close-fitting type elastic curing track system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020157973.7U CN211897611U (en) | 2020-02-10 | 2020-02-10 | Close-fitting type elastic curing track system |
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| CN211897611U true CN211897611U (en) | 2020-11-10 |
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| CN202020157973.7U Active CN211897611U (en) | 2020-02-10 | 2020-02-10 | Close-fitting type elastic curing track system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218858A (en) * | 2020-02-10 | 2020-06-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Close-fitting type elastic curing track system |
| CN113702136A (en) * | 2021-09-17 | 2021-11-26 | 东南大学 | Asphalt curing ballast bed test piece forming method |
-
2020
- 2020-02-10 CN CN202020157973.7U patent/CN211897611U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218858A (en) * | 2020-02-10 | 2020-06-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Close-fitting type elastic curing track system |
| CN111218858B (en) * | 2020-02-10 | 2021-09-10 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Close-fitting type elastic curing track system |
| CN113702136A (en) * | 2021-09-17 | 2021-11-26 | 东南大学 | Asphalt curing ballast bed test piece forming method |
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