CN203007739U - Stopping-shoulder-free fastening assembly with iron base plate - Google Patents
Stopping-shoulder-free fastening assembly with iron base plate Download PDFInfo
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- CN203007739U CN203007739U CN 201220511051 CN201220511051U CN203007739U CN 203007739 U CN203007739 U CN 203007739U CN 201220511051 CN201220511051 CN 201220511051 CN 201220511051 U CN201220511051 U CN 201220511051U CN 203007739 U CN203007739 U CN 203007739U
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- shoulder
- fastener assembly
- sleeper
- gauge apron
- shoulder fastener
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Abstract
The utility model discloses a stopping-shoulder-free fastening assembly with an iron base plate, and relates to the field of railway tracks. The stopping-shoulder-free fastening assembly has good elasticity, and can adjust the height of the left-and-right position of a steel track after the steel track is laid completely. The stopping-shoulder-free fastening assembly with the iron base plate is used for enabling the steel track to be fixedly installed on a sleeper, the stopping-shoulder-free fastening assembly comprises an elastic strip, a base plate under the track, an embedded iron seat and an insulation track distance block, wherein the section of the insulation track distance block is L-shaped, the base plate under the track is arranged between the steel track and the sleeper, the middle of the embedded iron seat is provided with a groove, and the section of the groove is in a big-end-down trapezoid shape. The stopping-shoulder-free fastening assembly further comprises a track distance baffle, an elastic base plate, the iron base plate, a T-shaped bolt, a flat washer and a nut, wherein the section of the track distance baffle is r-shaped.
Description
Technical field
The utility model relates to the railroad track field, relates in particular to a kind of non-shoulder fastener assembly with iron chair.
Background technology
The fastener assembly is a kind of common components of railroad track, generally includes the non-shoulder fastener and two kinds of shoulder block fasteners are arranged.Fig. 1 is respectively the structural representation of existing non-shoulder fastener assembly, and as shown in Figure 1, existing non-shoulder fastener assembly comprises preburied iron base 3 ', spring 4 ', railway rail pad 5 ' and Insulation rail distance keeper 6 '; Preburied iron base 3 ' is embedded in the sleeper 1 ' of concrete system, is provided with Insulation rail distance keeper 6 ' between rail 2 ' and preburied iron base 3 '.The transverse load that train imposes on rail 2 ' passes to Insulation rail distance keeper 6 ' by rail 2 ', is passed to afterwards on preburied iron base 3 ', bears this transverse load by preburied iron base 3 '.Insulation rail distance keeper 6 ' and the upper spring 4 ' that arranges of preburied iron base 3 ' can play the fixedly effect of rail of withholding.
The inventor finds that there are following 3 deficiencies at least in the structure of this fastener assembly in the process of practice:
1, the integral, flexible of this non-shoulder fastener assembly is relatively poor, only depend on railway rail pad 5 ' that elasticity is provided, but the length of railway rail pad 5 ' and width are subjected to the restriction of the structure of non-shoulder fastener assembly, when being subject to the train long duration load, crack performance in various degree can appear on its surface, even may cause compression set owing to being subject to larger load, affect the functional performance of non-shoulder fastener assembly.
2, do not establish bolt on preburied iron base 3 ', and spring 4 ' can't be adjusted at the complete rear height to rail of steel rail laying by withholding rail in the hole of directly inserting preburied iron base 3 ' upper reservation.
3, only be provided with Insulation rail distance keeper 6 ' between rail and preburied iron base 3 ', because the model of Insulation rail distance keeper 6 ' is limited, therefore can't after steel rail laying is complete, carry out the adjustment of position, left and right in a big way to rail.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of non-shoulder fastener assembly with iron chair, has good integral, flexible, and can after steel rail laying is complete, height or its position, left and right of rail be adjusted.
For solving the problems of the technologies described above, the utility model non-shoulder fastener assembly adopts following technical scheme:
A kind of non-shoulder fastener assembly with iron chair, described non-shoulder fastener assembly is used for rail is fixedly installed on sleeper, described non-shoulder fastener assembly comprises that spring, railway rail pad, preburied iron base and cross section are the Insulation rail distance keeper of L-type, be provided with described railway rail pad between described rail and sleeper, it is up-small and down-big trapezoidal groove that the middle part of described preburied iron base has the cross section, and described non-shoulder fastener assembly also comprises: the cross section is gauge apron, resilient sleeper-bearing, iron chair, T-shaped bolt, plain washer and the nut of r type;
wherein, described resilient sleeper-bearing is arranged on described sleeper, described iron chair is arranged between described railway rail pad and described resilient sleeper-bearing, one end of described gauge apron is pressed on described iron chair, the other end of described gauge apron is positioned on described sleeper, the top of described gauge apron is provided with first through hole at the center at a top that is positioned at described gauge apron, the described cross section that the head of described T-shaped bolt is arranged at described preburied iron base downwards is in trapezoidal groove, described T-shaped bolt passes the first through hole of described gauge apron from bottom to top successively, the middle part of described spring, described plain washer and described nut, described T-shaped bolt, described nut and described plain washer acting in conjunction are locked described spring, one end deduction of described spring is on described Insulation rail distance keeper, other end deduction is at the shoulder of described gauge apron.
Further, have two columnar protrusions on the end face of described preburied iron base, described cross section is that trapezoidal groove is between described two columnar protrusions.
Further, described gauge apron has the second identical through hole that two symmetries are positioned at the both sides of described the first through hole.
Two columnar protrusions of described preburied iron base are sheathed on respectively in two the second identical through holes of described gauge apron.
Preferably, described non-shoulder fastener assembly with iron chair also comprises flat bottom height adjusting cushion plate, described bottom height adjusting cushion plate is arranged between described resilient sleeper-bearing and described sleeper, described T-shaped bolt pass successively at least one described bottom height adjusting cushion plate, the first through hole of described gauge apron, the middle part of described spring, described plain washer and described nut from bottom to top.
Preferably, described bottom height adjusting cushion plate comprises identical first and second portion, described first and described second portion are tabular, described first has a projection and a depression, described second portion has a projection and a depression, the projection of described first and depression are mated with depression and the projection of described second portion respectively, are combined into described flat bottom height adjusting cushion plate so that described first and described second portion fasten mutually.
Further, described bottom height adjusting cushion plate has the through hole that matches with described preburied iron base.
Preferably, have at least two chucking lugs that are positioned at sustained height on described preburied iron base.
Preferably, the material of described spring is 60Si2MnA, and described spring is the ω type, and the fatigue range of described spring is-2 millimeters to 0.5 millimeter.
In the technical scheme of the present embodiment, a kind of non-shoulder fastener assembly with iron chair is provided, this non-shoulder fastener assembly has resilient sleeper-bearing and the iron chair that is arranged between sleeper and railway rail pad, has good integral, flexible, this resilient sleeper-bearing can cushion the vertical load between railway rail pad and sleeper, has protected railway rail pad and sleeper; Owing to being provided with iron chair, the lifting surface area of resilient sleeper-bearing is increased, reduced the stress of resilient sleeper-bearing, extended the life-span of this non-shoulder fastener assembly.
This non-shoulder fastener assembly with iron chair utilizes the cooperation between T-shaped bolts and nuts to be fixed, can be in the cooperation of regulating between T-shaped bolts and nuts, the gauge apron that arranges by replacing, the model of Insulation rail distance keeper are adjusted the position, left and right of rail according to actual needs; Similarly, can the height of rail be adjusted by changing the railway rail pad of different model, and simple, the easy row of method of adjustment.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the non-shoulder fastener assembly of prior art;
Fig. 2 is the structural representation with the non-shoulder fastener assembly of iron chair in the utility model embodiment;
Fig. 3 a is the top view of the gauge apron in the utility model embodiment;
Fig. 3 b is that Fig. 3 a is along the sectional view of A-A line;
Fig. 4 is the front view of the preburied iron base in the utility model embodiment;
Fig. 5 is the right view of the preburied iron base in the utility model embodiment;
Fig. 6 is the front view of the bottom height adjusting cushion plate in the utility model embodiment;
Fig. 7 is the dismounting figure of the bottom height adjusting cushion plate in the utility model embodiment.
The specific embodiment
The utility model embodiment provides a kind of non-shoulder fastener assembly with iron chair, has good integral, flexible, and can after steel rail laying is complete, height or its position, left and right of rail be adjusted.
this non-shoulder fastener assembly with iron chair is used for rail 2 is fixedly installed on sleeper 1, as shown in Figure 2, described non-shoulder fastener assembly comprises spring 4, railway rail pad 5, preburied iron base 3 and cross section are the Insulation rail distance keeper 6 of L-type, wherein, be provided with described railway rail pad 5 between described rail 2 and sleeper 1, the middle part of described preburied iron base 3 have the cross section be up-small and down-big trapezoidal groove 31(as shown in Figure 4), described non-shoulder fastener assembly also comprises: the cross section is the gauge apron 7 of r type, resilient sleeper-bearing 11 for the plane tabular structure, iron chair 12, T-shaped bolt 8, plain washer 9 and nut 10.
wherein, described resilient sleeper-bearing 11 is arranged on described sleeper 1, described iron chair 12 is arranged between described railway rail pad 5 and described resilient sleeper-bearing 11, one end of described gauge apron 7 is pressed on described iron chair 12, the other end of described gauge apron 7 is positioned on described sleeper 1, described gauge apron 7 is provided with the first through hole 71(at center at a top that is positioned at described gauge apron 7 as shown in Fig. 3 a and Fig. 3 b), the described cross section that the head of described T-shaped bolt 8 is arranged at described preburied iron base 3 downwards is in trapezoidal groove 31, described T-shaped bolt 8 passes the first through hole 71 of described gauge apron 7 from bottom to top successively, the middle part of described spring 4, described plain washer 9 and described nut 10, described T-shaped bolt 8, described nut 10 and 9 actings in conjunction of described plain washer are locked described spring 4, one end deduction of described spring 4 is on described Insulation rail distance keeper 6, other end deduction is at the shoulder 72 of described gauge apron 7.
As shown in Fig. 3 b, the top place of described gauge apron 7 is provided with boss, the boss side is provided with the depression that the cross section is circular arc, form the shoulder 72 of gauge apron 7, make spring 4 can firmly deduct at shoulder 72 places of described gauge apron 7, can be because of the effect of the transverse load of rail 2 and the shoulder 72 of the described gauge apron 7 that slips away, guaranteed the steadiness of non-shoulder fastener assembly integral body.
Because described non-shoulder fastener assembly with iron chair has resilient sleeper-bearing 11, make non-shoulder fastener assembly have good elasticity.Owing to being provided with iron chair 12 between resilient sleeper-bearing 11 and railway rail pad 5, the vertical load Uniform Dispersion that railway rail pad 5 can be conducted is to resilient sleeper-bearing 11, increased the lifting surface area of resilient sleeper-bearing 11, reduced the stress of resilient sleeper-bearing 11, reduce simultaneously resilient sleeper-bearing 11 due to the stressed possibility of damaging of concentrating, extended the application life of resilient sleeper-bearing 11.
Usually, it is available that Insulation rail distance keeper 6 and gauge apron 7 all have different models, thus, coordinate by Insulation rail distance keeper 6 and the gauge apron 7 of selecting different model, the position, left and right of adjusting rail 2 that can be in a big way, in order to after rail 2 is installed, rail 2 is adjusted, guarantee the gauge of rail 2 and rail to.
Similarly, further, by the railway rail pad 5 of selecting different model, can regulate to a certain extent rail 2 with respect to the height of sleeper 1.
Further, as shown in Figure 4, have two columnar protrusions 32 on the end face of described preburied iron base 3, described cross section is that trapezoidal groove 31 specifically can be between described two columnar protrusions 32.
In order to coordinate described preburied iron base 3, as shown in Fig. 3 a, described gauge apron 7 has the second identical through hole 73 that two symmetries are positioned at the both sides of described the first through hole 71.Two columnar protrusions 32 of described preburied iron base 3 are sheathed on respectively in described two the second identical through holes 73, and are general, and the cross sectional shape of the second through hole 73 is according to the shape design of columnar protrusions 32.
By the left-hand component of Fig. 2 as can be known, the cross section of Insulation rail distance keeper 6 is L-type, its medial surface is close to the edge of the bottom of rail 2, fit in one plane of the lateral surface relative with its medial surface and gauge apron 7, in addition, gauge apron 7 is fitted with the medial surface of the part of Insulation rail distance keeper 6 applyings and a side of columnar protrusions 32, make from the transmission successively via Insulation rail distance keeper 6, gauge apron 7 of the transverse load of rail 2, be delivered on preburied iron base 3, born by the sleeper 1 that partly wraps up preburied iron base 3 at last.
The below describes the method that in the utility model embodiment, non-shoulder fastener assembly is withheld rail of using in detail.in advance the pre-buried part of preburied iron base 3 is imbedded in sleeper 1, the head of T-shaped bolt 8 is pushed in the groove of described preburied iron base 3, lay successively resilient sleeper-bearing 11 in the space that two preburied iron bases 3 form, iron chair 12, after making the Surface Contact of resilient sleeper-bearing 11 bottoms and sleeper 1, the second through hole 73 of gauge apron 7 is passed the columnar protrusions 32 of preburied iron base 3, railway rail pad 5 is positioned on described iron chair 12 again, then rail 2 is placed on railway rail pad 5 above, lay Insulation rail distance keeper 6 respectively between rail 2 and gauge apron 7, again the two ends of spring 4 are taken respectively on the end face of the shoulder that is placed on described gauge apron 7 and Insulation rail distance keeper 6, at last, plain washer 9 and nut 10 are installed successively, can complete the installation process of described non-shoulder fastener assembly.
As shown in the right half part of Fig. 2, in order to regulate largely rail 2 with respect to the height of sleeper 1, above-mentioned non-shoulder fastener assembly also can comprise flat bottom height adjusting cushion plate 13, described bottom height adjusting cushion plate 13 is arranged between described resilient sleeper-bearing 11 and described sleeper 2, and described T-shaped bolt 8 passes the first through hole 71 of at least one described bottom height adjusting cushion plate 13, described gauge apron 7, middle part, described plain washer 9 and the described nut 10 of described spring 4 from bottom to top successively.
because common rail 2 just carries out the adjustment of height according to actual needs after installing, put into rail 2 belows for the ease of the bottom height adjusting cushion plate, described bottom height adjusting cushion plate 13 is generally dismountable structure, concrete described bottom height adjusting cushion plate 13 comprises identical first 131 and second portion 132, as shown in Figure 6 and Figure 7, described first 131 is tabular with described second portion 132, described first 131 has a projection 1311 and a depression 1312, same, described second portion 132 has a projection 1321 and a depression 1322, the projection 1311 of described first and depression 1312 are mated with depression 1322 and the projection 1321 of described second portion respectively, so that fastening mutually, described first 131 and described second portion 132 be combined into described flat bottom height adjusting cushion plate 13.
Specifically when mounted, can be after rail 2 and whole non-shoulder fastener assembly be installed, more whether need to select according to actual needs to add the number of the bottom height adjusting cushion plate 13 that bottom height adjusting cushion plate 13 and needs install, install, debugging conveniently.
As shown in the right half part of Fig. 2, usually bottom height adjusting cushion plate 13 also has different size, and bottom height adjusting cushion plate 13 can be arranged between gauge apron 7 and sleeper 1, cushions whole gauge apron 7, at this moment, gauge apron 7 can move up along the columnar protrusions 32 of preburied iron base 3.Equally owing to having columnar protrusions 32 on described preburied iron base 3, thereby as shown in Figure 6, described bottom height adjusting cushion plate 13 can have the through hole 133 that matches with the columnar protrusions 32 of described preburied iron base 3, and two preburied iron bases 3 on rail 2 both sides are arranged at respectively in two through holes 133.
As shown in Figure 4 and Figure 5, have at least two chucking lugs 33 that are positioned at sustained height on described preburied iron base 3, when the end face of chucking lug 33 and sleeper 2 surperficial equal, show that preburied iron base 3 is arranged at the position that presets, can carry out the installation work of described non-shoulder fastener assembly miscellaneous part.
The material of described spring 4 is 60Si2MnA, described spring 4 is the ω type, concrete, the left limb that described spring 4 is connected by left arm, with left arm, right arm, the right limb that is connected with right arm and the middle limb one that is connected with left arm, right arm consist of, middle limb is inverted U-shaped body, and the fatigue range of described spring 4 is-2 millimeters to 0.5 millimeter, because the fatigue range of this spring 4 is larger, can fully satisfy this non-shoulder fastener assembly to flexible requirement.
In the technical scheme of the present embodiment, a kind of non-shoulder fastener assembly with iron chair is provided, this non-shoulder fastener assembly has resilient sleeper-bearing and the iron chair that is arranged between sleeper and railway rail pad, has good integral, flexible, this resilient sleeper-bearing can cushion the vertical load between railway rail pad and sleeper, has protected railway rail pad and sleeper; Owing to being provided with iron chair, the lifting surface area of resilient sleeper-bearing is increased, reduced the stress of resilient sleeper-bearing, extended the life-span of this non-shoulder fastener assembly.
This non-shoulder fastener assembly with iron chair utilizes the cooperation between T-shaped bolts and nuts to be fixed, can be in the cooperation of regulating between T-shaped bolts and nuts, the gauge apron that arranges by replacing, the model of Insulation rail distance keeper, according to actual needs the position, left and right of rail is adjusted, similarly, can be by changing the model of railway rail pad, perhaps by setting up the bottom height adjusting cushion plate of different model, height to rail is adjusted, and simple, the easy row of method of adjustment.
The above; it is only the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. non-shoulder fastener assembly with iron chair, described non-shoulder fastener assembly is used for rail is fixedly installed on sleeper, described non-shoulder fastener assembly comprises that spring, railway rail pad, preburied iron base and cross section are the Insulation rail distance keeper of L-type, be provided with described railway rail pad between described rail and sleeper, it is characterized in that, it is up-small and down-big trapezoidal groove that the middle part of described preburied iron base has the cross section, and described non-shoulder fastener assembly also comprises: the cross section is gauge apron, resilient sleeper-bearing, iron chair, T-shaped bolt, plain washer and the nut of r type;
wherein, described resilient sleeper-bearing is arranged on described sleeper, described iron chair is arranged between described railway rail pad and described resilient sleeper-bearing, one end of described gauge apron is pressed on described iron chair, the other end of described gauge apron is positioned on described sleeper, the top of described gauge apron is provided with first through hole at the center at a top that is positioned at described gauge apron, the described cross section that the head of described T-shaped bolt is arranged at described preburied iron base downwards is in trapezoidal groove, described T-shaped bolt passes the first through hole of described gauge apron from bottom to top successively, the middle part of described spring, described plain washer and described nut, described T-shaped bolt, described nut and described plain washer acting in conjunction are locked described spring, one end deduction of described spring is on described Insulation rail distance keeper, other end deduction is at the shoulder of described gauge apron.
2. the non-shoulder fastener assembly with iron chair according to claim 1, is characterized in that, has two columnar protrusions on the end face of described preburied iron base, and described cross section is that trapezoidal groove is between described two columnar protrusions.
3. the non-shoulder fastener assembly with iron chair according to claim 1, is characterized in that, described gauge apron has the second identical through hole that two symmetries are positioned at the both sides of described the first through hole.
4. the non-shoulder fastener assembly with iron chair according to claim 3, is characterized in that,
Two columnar protrusions of described preburied iron base are sheathed on respectively in two the second identical through holes of described gauge apron.
5. according to claim 1-4 arbitrary described non-shoulder fastener assemblies with iron chair, it is characterized in that, also comprise flat bottom height adjusting cushion plate, described bottom height adjusting cushion plate is arranged between described resilient sleeper-bearing and described sleeper, the middle part of passing successively described bottom height adjusting cushion plate, the first through hole of described gauge apron, described spring from bottom to top of described T-shaped bolt, described plain washer and described nut.
6. the non-shoulder fastener assembly with iron chair according to claim 5, is characterized in that,
Described bottom height adjusting cushion plate comprises identical first and second portion, described first and described second portion are tabular, described first has a projection and a depression, described second portion has a projection and a depression, the projection of described first and depression are mated with depression and the projection of described second portion respectively, are combined into described flat bottom height adjusting cushion plate so that described first and described second portion fasten mutually.
7. the non-shoulder fastener assembly with iron chair according to claim 6, is characterized in that,
Described bottom height adjusting cushion plate has the through hole that matches with described preburied iron base.
8. the non-shoulder fastener assembly with iron chair according to claim 1, is characterized in that,
Have at least two chucking lugs that are positioned at sustained height on described preburied iron base.
9. the non-shoulder fastener assembly with iron chair according to claim 1, is characterized in that,
The material of described spring is 60Si2MnA, and described spring is the ω type, and the fatigue range of described spring is-2 millimeters to 0.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511051 CN203007739U (en) | 2012-09-29 | 2012-09-29 | Stopping-shoulder-free fastening assembly with iron base plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511051 CN203007739U (en) | 2012-09-29 | 2012-09-29 | Stopping-shoulder-free fastening assembly with iron base plate |
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| CN203007739U true CN203007739U (en) | 2013-06-19 |
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| CN 201220511051 Expired - Lifetime CN203007739U (en) | 2012-09-29 | 2012-09-29 | Stopping-shoulder-free fastening assembly with iron base plate |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938504A (en) * | 2014-05-14 | 2014-07-23 | 张志新 | Casting-free plastic-free large-adjustment-amount high-elasticity anti-theft rail fastener |
| CN108265571A (en) * | 2017-01-03 | 2018-07-10 | 洛阳科博思新材料科技有限公司 | A kind of Damping fastening system |
| CN108442188A (en) * | 2018-02-07 | 2018-08-24 | 中铁上海工程局集团有限公司 | A kind of subway route sharp radius curve location sleeper deflection handles construction method |
| CN108625233A (en) * | 2018-05-31 | 2018-10-09 | 中国铁道科学研究院铁道建筑研究所 | It is a kind of to have bolt fastening component suitable for what axis weighed 35~40 tons of heavy haul railways |
| CN108978364A (en) * | 2017-05-31 | 2018-12-11 | 洛阳科博思新材料科技有限公司 | A kind of shoulder block formula Damping fastening |
| CN111395071A (en) * | 2020-02-19 | 2020-07-10 | 中铁第一勘察设计院集团有限公司 | Height adjusting assembly and method for pre-buried iron seat fastener of ballastless track with elastic supporting block |
| CN112553975A (en) * | 2020-12-15 | 2021-03-26 | 中铁宝桥集团有限公司 | Bolt-free fastener system for heavy haul railway |
| CN112553980A (en) * | 2020-12-15 | 2021-03-26 | 中铁宝桥集团有限公司 | Bolt fastener system for heavy haul railway |
| CN112941979A (en) * | 2021-03-12 | 2021-06-11 | 中原利达铁路轨道技术发展有限公司 | Height-adjustable elastic strip fastener structure for heavy freight railway |
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2012
- 2012-09-29 CN CN 201220511051 patent/CN203007739U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938504A (en) * | 2014-05-14 | 2014-07-23 | 张志新 | Casting-free plastic-free large-adjustment-amount high-elasticity anti-theft rail fastener |
| CN103938504B (en) * | 2014-05-14 | 2018-08-14 | 张志新 | Without casting without the antitheft rail fastening of the big adjustment amount high resiliency of plastics |
| CN108265571A (en) * | 2017-01-03 | 2018-07-10 | 洛阳科博思新材料科技有限公司 | A kind of Damping fastening system |
| CN108265571B (en) * | 2017-01-03 | 2023-11-17 | 洛阳科博思新材料科技有限公司 | Vibration reduction fastener system |
| CN108978364A (en) * | 2017-05-31 | 2018-12-11 | 洛阳科博思新材料科技有限公司 | A kind of shoulder block formula Damping fastening |
| CN108442188A (en) * | 2018-02-07 | 2018-08-24 | 中铁上海工程局集团有限公司 | A kind of subway route sharp radius curve location sleeper deflection handles construction method |
| CN108625233A (en) * | 2018-05-31 | 2018-10-09 | 中国铁道科学研究院铁道建筑研究所 | It is a kind of to have bolt fastening component suitable for what axis weighed 35~40 tons of heavy haul railways |
| WO2019227514A1 (en) * | 2018-05-31 | 2019-12-05 | 中国铁道科学研究院铁道建筑研究所 | Bolted fastener assembly suitable for heavy haul railway with axle load of 35-40 tons |
| CN111395071A (en) * | 2020-02-19 | 2020-07-10 | 中铁第一勘察设计院集团有限公司 | Height adjusting assembly and method for pre-buried iron seat fastener of ballastless track with elastic supporting block |
| CN112553975A (en) * | 2020-12-15 | 2021-03-26 | 中铁宝桥集团有限公司 | Bolt-free fastener system for heavy haul railway |
| CN112553980A (en) * | 2020-12-15 | 2021-03-26 | 中铁宝桥集团有限公司 | Bolt fastener system for heavy haul railway |
| CN112941979A (en) * | 2021-03-12 | 2021-06-11 | 中原利达铁路轨道技术发展有限公司 | Height-adjustable elastic strip fastener structure for heavy freight railway |
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Address after: 100081 303, two district, 2, Da Liu Shu Lu, Haidian District, Beijing. Patentee after: CARS RAILWAY ENGINEERING Research Institute Address before: No. 2, Da Liu Shu Road, Haidian District, Beijing Patentee before: CHINA ACADEMY OF RAILWAY SCIENCES RAILWAY ENGINEERING Research Institute |
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Effective date of registration: 20190430 Address after: 100081 303, two district, 2, Da Liu Shu Lu, Haidian District, Beijing. Co-patentee after: BEIJING TIEKE SHOUGANG RAIL-TECH. Co.,Ltd. Patentee after: CARS RAILWAY ENGINEERING Research Institute Address before: 100081 303, two district, 2, Da Liu Shu Lu, Haidian District, Beijing. Patentee before: CARS RAILWAY ENGINEERING Research Institute |
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