CN111270572A - Small-number vibration-damping noise-reducing frog structure for rail transit - Google Patents
Small-number vibration-damping noise-reducing frog structure for rail transit Download PDFInfo
- Publication number
- CN111270572A CN111270572A CN202010122217.5A CN202010122217A CN111270572A CN 111270572 A CN111270572 A CN 111270572A CN 202010122217 A CN202010122217 A CN 202010122217A CN 111270572 A CN111270572 A CN 111270572A
- Authority
- CN
- China
- Prior art keywords
- rail
- point
- fork
- frog
- heel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
Abstract
A small-number vibration-damping noise-reducing frog structure for rail transit at least comprises a point rail, a wing rail, a fork heel rail, a spacer iron and a conversion device, wherein the heel end of the point rail and the front end of the fork heel rail adopt a spacer iron type movable joint structure or a spacer iron type double-limb inclined joint structure, the front end of the spacer iron is closely attached to the wing rail, a certain gap is reserved between the front end of the spacer iron and the point rail, the rear end of the spacer iron is closely attached to the wing rail and the fork heel rail, one side of the front end of the point rail is connected with one end of a traction rod, and the other end of the traction rod is connected with the conversion device so as to drive the traction rod through the conversion device to pull the point rail; therefore, the invention has simple structure and convenient assembly, disassembly and maintenance, is used for the vibration reduction requirements of various tracks, is made of alloy steel materials, effectively improves the strength and prolongs the service life of the turnout, can save space and overcomes various defects of the prior small-number turnout due to the adoption of the fixed frog.
Description
Technical Field
The invention relates to the technical field of rail transit vibration reduction and noise reduction, in particular to a small-number vibration reduction and noise reduction frog structure for rail transit.
Background
The urban rail transit line generally passes through areas with dense personnel such as urban work and life, noise and vibration generated during operation of the urban rail transit line can affect the surrounding environment to a certain extent, complaints of residents along the line can be caused in serious cases, and most of complaints of residents caused after the urban rail transit is operated at present are vibration and noise problems. Urban rail transit switch has generally adopted fixed frog structure, because of the existence in harmful space, causes the wheel rail to strike great when the train passes through the switch, has increased vibration and noise. In order to avoid the problem of harmful space of the fixed frog, the elastic bendable movable point frog is mainly adopted at present, but the frog with the structure is longer than the fixed frog and is only used on the line of the 60g/m steel rail.
For urban rail transit lines, the following problems are faced by adopting an elastic bendable movable point rail frog:
(1) the main line of urban rail transit is mostly underground line, and if harmful space needs to be eliminated due to vibration reduction and noise reduction of turnout, the civil engineering structure investment is increased by adopting the elastic bendable movable point rail frog.
(2) If the property development requirements of the vehicle section and the parking lot exist, the vibration and noise reduction measures are also taken into consideration by the parking lot line. However, because of the small number of turnouts (mainly turnouts 7 and below) in a yard, and the main type of rail is 50kg/m rail, there is no flexible movable point rail frog suitable for such small-number 50kg/m rail. In addition, even if the elastic bendable movable point frog is designed for the small-size switch, the length of the frog is much longer (about 3 m) than that of the original fixed frog. The urban land is tense, the control of the parking lot on the occupied area is the design key point, and if the rail elastic bendable movable point rail frog is adopted due to the requirements of vibration reduction and noise reduction, on one hand, the investment is increased, and on the other hand, the design of the parking lot is difficult.
Therefore, in view of the above drawbacks, the designer of the present invention, through careful research and design, combines the experience and results of related industries for many years, and researches and designs a small-sized vibration and noise reduction frog structure for rail transit, so as to overcome the above drawbacks.
Disclosure of Invention
The invention aims to provide a small-number vibration-damping noise-reducing frog structure for rail transit, which is simple in structure, convenient to assemble, disassemble and maintain, capable of meeting the vibration-damping requirements of various rails, made of alloy steel materials, capable of effectively improving the strength and prolonging the service life of the small-number vibration-damping noise-reducing frog structure, capable of saving space and overcoming various defects of an existing small-number turnout due to the adoption of a fixed frog.
In order to achieve the purpose, the invention discloses a small-number vibration-damping noise-reducing frog structure for rail transit, which at least comprises a point rail, a wing rail, a fork heel rail, a spacer iron and a conversion device, and is characterized in that:
the heel end of the point rail and the front end of the fork rail adopt a spacing iron type movable joint structure or a spacing iron type double-limb inclined joint structure, the front end of the spacing iron is closely attached to the wing rail, a certain gap is reserved between the front end of the spacing iron and the point rail so as to be convenient for the pulling space requirement of the point rail, and the rear end of the spacing iron is closely attached to the wing rail and the fork rail so as to ensure the fixation of the relative positions of the wing rail, the fork rail and the spacing iron;
one side of the front end of the point rail is connected with one end of a traction rod, the middle of the traction rod provides a fulcrum through a support rail, the other end of the traction rod is connected with a conversion device, so that the traction rod is driven through the conversion device to pull the point rail, and the wing rail and the fork heel rail are connected with a rail foundation through a fastener.
Wherein: in the spacing iron type double-limb inclined joint structure, a large base plate is arranged at the heel end of the center rail, and a pivot structure is arranged on the large base plate to be assembled with the center rail into a whole.
Wherein: the point rail is made of alloy steel materials and is assembled into a whole through bolts or is integrally machined by an alloy steel block.
Wherein: the toe end of the point rail is provided with an anti-jumping platform or the side surface of the point rail is provided with an anti-jumping boss so as to realize the vertical jumping of the point rail caused when the train passes a fork.
Wherein: the heel end or the side surface of the heart rail is provided with a longitudinal limiting device to limit the longitudinal movement of the heart rail.
Wherein: the point rail adopts the level to hide sharp formula structure when leaning on with the wing rail, is about to increase horizontal slicing width in the wing rail position that point rail pointed end corresponds to guarantee good vertical stability and point rail most advanced and be difficult for being damaged by the wheel pad.
Wherein: the point rail adopts an approximate triangle or approximate shuttle-shaped structure on the plane, and the fork and the heel rail adopt a straight joint or inclined joint structure on the plane so as to reduce the overall occupied space of the frog.
Wherein: when the spacer iron type movable joint structure is adopted, a flange crossing fork structure is adopted at the joint between the heel end of the center rail and the fork heel rail, so that the impact of the wheel flange and the rail joint is avoided, and the vibration and the noise are reduced.
Wherein: interval iron adopts five holes and above interval iron, and the front end is equipped with 2 and above holes, and the downthehole stud that adopts of front end realizes being connected between heart rail, wing rail, the interval iron, set up boss and plain washer in the middle of the stud, the rear end is equipped with 3 and above holes, and the downthehole high-strength bolt that adopts of rear end realizes being connected between heart rail, wing rail, the fork and the rail.
Wherein: the holes at the front end and the rear end of the spacer iron are round holes, long round holes, partial round holes or partial long round holes.
According to the above content, the small-number vibration-damping noise-reducing frog structure for rail transit has the following effects:
1. simple structure, convenient assembly, disassembly and maintenance, and can be applied to turnouts within the range of small turnouts (No. 3-9 turnouts) of 50kg/m steel rail, 60kg/m steel rail and other series
2. When adopting interval iron formula loose joint structure between heart rail and the fork and following the rail, heart rail and fork follow rail seam crossing department adopt the rim to cross the trouble structure, and through raising the interval iron height between wing rail and the heart rail, realize that the vehicle undertakes rim weight by interval iron when passing through this position to eliminate the influence of rail seam between heart rail heel end and the fork and follow the rail, avoid the impact of wheel tread to rail seam, vibration and noise when can further reduce the vehicle and cross the trouble.
3. If a spacer iron type double-limb inclined joint structure is adopted between the core rail and the fork and heel rail, the joint between the core rail and the fork and heel rail is eliminated, the impact effect of the wheel tread on the rail joint is avoided, and the vibration and noise when the vehicle passes a fork are reduced.
4. The components are made of alloy steel materials and are connected into a whole through high-strength bolts or are directly integrally processed by alloy steel blocks. The maintenance and repair amount is reduced while the hardness is improved, and the service life of the point rail is greatly prolonged.
5. The anti-jumping structure is arranged at the tip end or on the side face of the center rail, so that the vertical jumping of the center rail is limited, and the safety of the vehicle crossing a switch is improved.
6. The point rail and the wing rail are connected into a whole through a bolt, or a limiting device is arranged on the side surface of the point rail to limit the longitudinal displacement between the point rail and the wing rail and improve the smoothness of crossing;
7. point rail point end adopts the level to hide sharp structure, is about to the wing rail position that point rail point end corresponds, increases the level and digs the width of cutting to paste the point rail in wing rail railhead chin, the irregularity of gauge line when eliminating the concatenation between point rail and the wing rail, thereby guarantee good vertical stability, and point rail point end is difficult for being wounded by the wheel crush.
8. The point rail adopts an approximate triangle structure or an approximate shuttle-shaped structure on the plane, and the fork and the heel rail adopt a straight joint or an inclined joint structure on the plane, so that the overall occupied space of the frog is reduced.
9. The length of the point rail is not obviously increased, the flexibility of the point rail is ensured, the point rail is driven by the point switch to drive, the switching of the turnout opening direction is realized, the problem that the movable point rail is applied to a small-number turnout is well solved, the requirement of the turnout passing speed of the small-number turnout can be met, and the vibration and the noise of a vehicle passing through the small-number turnout are effectively reduced.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
Fig. 1 shows a schematic structural diagram of one embodiment of the small-sized vibration and noise reduction frog structure for rail transit in the invention.
Fig. 2 shows a schematic structural diagram of another embodiment of the present invention.
Figure 3 shows a side view of the heart-rail anti-jump device of the present invention.
Fig. 4 shows a schematic structural view of the wheel rim yoke structure of the present invention.
Detailed Description
Referring to fig. 1 and 2, two embodiments of the small-sized vibration and noise reduction frog structure for rail transit of the present invention are shown, respectively.
The small-number vibration-damping noise-reducing frog structure for rail transit can be a spacing iron type movable joint structure (see figure 1) or a spacing iron type double-limb inclined joint structure (see figure 2), and mainly comprises a point rail 1, a wing rail 5, a fork heel rail 4, spacing irons, a conversion device 13 and the like.
Referring to the gap iron type movable joint structure shown in fig. 1, the frog structure of the invention mainly comprises a point rail 1, a wing rail 5, a fork and heel rail 4, a gap iron 2, a conversion device 13 and other components, wherein the heel end of the point rail 1 and the front end of the fork and heel rail 4 adopt the gap iron type movable joint structure, and the gap iron 2 is divided into the front end and the rear end by taking the rail gap position where the point rail 1 and the fork and heel rail 4 are connected as a boundary. The front end of the spacing iron 2 is closely attached to the wing rail 5, a certain gap is reserved between the spacing iron and the point rail 1 so that the point rail can be pulled to meet the requirement of space, and the rear end of the spacing iron 2 is closely attached to the wing rail 5 and the fork and the rail 4, so that the fixation of the relative positions of the wing rail 5, the fork and the rail 4 and the spacing iron 2 is ensured.
Wherein, heart rail 1 divide into toe end and heel end, and its heel end sets up a plurality of round holes or slotted hole to splice as an organic wholely between wing rail 5, heart rail 1 and the fork and the rail 4 through 2 or above stud 7 and 3 or above high strength bolt 8, heart rail 1 and fork are followed and are left the space that is not less than 8mm between the rail 4, closely paste between spacing iron 2 and wing rail 5, the fork and follow the rail 4, leave certain clearance between the rail waist with heart rail 1, guarantee that the heart rail pulls the space demand.
The middle part of stud 7 sets up the boss to ensure the clearance between interval iron 2 and the heart rail 1, wing rail 5 and fork are connected with the basis under the rail through the fastener 6 of both sides with rail 4.
Referring to the spacer-iron-type double-limb oblique joint structure shown in fig. 2, the frog structure of the invention mainly comprises a point rail 1, a wing rail 5, a fork heel rail 4, a spacer iron 3, a conversion device 13 and other components, wherein a large base plate 9 is arranged at the heel end of the point rail 1, a pivot structure 10 is arranged on the large base plate 9, and a round hole is arranged at the position of the point rail 1 corresponding to the pivot structure 10 so as to be assembled with the large base plate 9 into a whole. The point rail 1, the wing rail 5, the fork-heel rail 4 and the spacing iron 3 are assembled into a whole through high-strength bolts 12 and studs 11. A certain gap is reserved between the front end of the fork and heel rails 4 and the heel end of the point rail 1, when the point rail 1 is switched, the front end of the point rail 1 is closely attached to the wing rail 5, and the rear end of the point rail 1 is closely attached to the fork and heel rails 4, so that the continuity of the rails is guaranteed. The wing rail 5 and the fork and heel rail 4 are connected with the rail foundation through fasteners 6 on two sides.
Referring to fig. 1 and 2, one side of the front end of the point rail 1 is connected to one end of a drawbar 11, wherein the front end of the point rail can be fixedly connected to the drawbar 11 by providing a round hole or an oblong hole and a bolt connection structure, the middle of the drawbar 11 provides a fulcrum through a support rail 12, and the other end of the drawbar is connected to a conversion device 13, so that the drawbar 11 is driven by the conversion device 13 to pull the point rail.
The point rail 1 is made of alloy steel materials, is assembled into a whole through bolts, and can also be integrally machined directly from an alloy steel block.
Referring to fig. 3, the point rail 1 is provided with an anti-jump platform 14 to realize vertical jump of the point end of the point rail 1 caused when a train passes through a switch, the anti-jump platform 14 is arranged on a spacer and located at the toe end of the point rail 1, a gasket is arranged between the spacer of the anti-jump platform 14 and the spacer, optionally, an anti-jump boss can be arranged on the side surface of the point rail 1, so that the vertical jump of the point end of the point rail 1 is limited by a wing rail.
The point type structure is horizontally hidden when the point rail 1 is attached to the wing rail 5, namely the position of the wing rail corresponding to the point end of the point rail is increased by the horizontal slicing width, the horizontal slicing width is preferably 3-5 mm, so that the point rail is attached to the lower jaw of the head of the wing rail through the structure and the specific arrangement of the width, the irregularity of the track distance line when the point rail and the wing rail are spliced is eliminated, good vertical stability is guaranteed, the point end of the point rail is not easily damaged by rolling wheels, and a very beneficial technical effect is achieved.
The point rail 1 is of a triangular or shuttle-shaped structure on the plane, and the fork and the heel rail 4 are of a straight joint or inclined joint structure on the plane, so that the overall occupied space of the frog can be effectively reduced.
Referring to fig. 4, when the spacer iron type movable joint structure shown in fig. 1 is adopted between the heel end of the core rail 1 and the fork and heel rail 4, a rim crossing fork structure is adopted at a joint between the heel end of the core rail 1 and the fork and heel rail 4, and when the wheel 15 passes through the joint, the rim part of the wheel 15 is lifted through the spacer iron 2, so that the tread of the wheel 15 is not in direct contact with the rail gap, the impact of the rim of the wheel and the rail gap is avoided, and the vibration and noise caused by the impact are reduced.
Wherein, the conversion device 13 can realize driving for 1 switch machine.
Therefore, the heel end of the point rail is connected with the fork heel rail by adopting a spacer iron type movable joint structure or a spacer iron type double-limb inclined joint structure.
The spacing iron is five holes and above, the front end is equipped with 2 and above holes, downthehole stud that adopts realizes being connected between heart rail, wing rail, the spacing iron, set up boss and plain washer in the middle of the stud, the rear end is equipped with 3 and above holes, downthehole adoption high-strength bolt realizes that heart rail, wing rail, fork are connected with between the rail. The holes on the spacing iron can be designed into round holes, long round holes or partial round holes and partial long round holes. Preferably, the mode that the front end of the spacer iron is provided with a round hole and the rear end of the spacer iron is provided with a long round hole is adopted, so that the spacer iron is convenient to mount and adjust.
If a spacer iron type movable joint structure is adopted between the point rail and the fork and the heel rail, the point rail and the fork and the heel rail are assembled into a whole through spacer iron, a stud and a bolt, and the space requirement of close contact between the parts and pulling of the point rail is ensured by adjusting the clearance fit between the parts. When the gap iron type movable joint structure is adopted, the point rail heel end is fixed, other parts of the point rail are relatively free in the horizontal direction, and the turnout opening direction conversion is realized by rotating around the heel end. Simultaneously, in order to eliminate the influence of rail seam between heart rail heel end and fork and the rail, heart rail and fork are followed rail seam crossing and are crossed the trouble structure with the fork, through raising the spacer iron height between wing rail and the heart rail, realize that the vehicle undertakes rim weight by the spacer iron when passing through this position to avoid the impact of wheel tread to rail seam, vibration and noise when can further reducing the vehicle and cross the trouble.
If a spacer iron type double-limb inclined joint structure is adopted between the point rail and the fork and heel rail, the point rail and the fork and heel rail are assembled into a whole through spacer iron and a stud, a large base plate is arranged at the heel end of the point rail, a pivot structure is arranged on the large base plate, the bottom of the point rail at the corresponding position of a pivot is assembled into a whole through a round hole and a base plate pivot, the point rail is fixed at the pivot, other parts of the point rail are relatively free in the horizontal direction, and turnout opening direction conversion is realized through rotation around the pivot.
Because the point end of the point rail is freely constrained, the point rail is easy to jump when stressed, and therefore the anti-jump structure is arranged at the point end or the side surface of the point rail, the vertical jump of the point rail is limited, and the safety of the vehicle passing through a switch is improved.
The point rail and the wing rail are connected into a whole through a bolt, or a limiting device is arranged on the side face of the point rail to limit the longitudinal displacement between the point rail and the wing rail and improve the smoothness of crossing a fork;
therefore, the invention consists of a wing rail, a center rail, a fork and heel rail, spacing iron, a conversion system and the like. The point rail can be pulled, so that a harmful space when the train passes through the frog is eliminated; a spacing iron type movable joint structure or a spacing iron type double-limb inclined joint structure is adopted between the point rail heel end and the fork rail heel; the front end of the spacer iron is closely attached to the wing rail and a certain gap is reserved between the front end of the spacer iron and the point rail to ensure the pulling space of the point rail, and the rear end of the spacer iron is closely attached to the wing rail and the fork heel rail to ensure the fixation; the spacer iron is designed by adopting five holes or more, and adopting round holes and long round holes or partial round holes and partial long round holes; when the frog adopts a spacer iron type movable joint structure, a joint of the point rail and the fork heel rail adopts a flange crossing point structure; the point rail is made of alloy steel into components or directly integrally processed by an alloy steel block; the anti-jumping structure is arranged at the tip end or the side surface of the point rail, and the point rail assembly is prevented from jumping while the wing rail is supported; the heel end or the side surface of the heart rail is provided with a longitudinal limiting device for limiting the longitudinal displacement of the heart rail; if a spacing iron type double-limb inclined joint structure is adopted, the heel end of the point rail is provided with a large base plate and a pivot structure, so that the point rail assembly can rotate around the pivot and the close contact between the assembly and the tip end of the fork heel rail can be ensured; the point of the point rail adopts a horizontal point-hiding structure, so that good vertical stability is kept and the point rail is not easy to be damaged by rolling of wheels; the core rail adopts an approximate triangle or shuttle-shaped structure on the plane, and the fork and the heel rail adopt a straight joint or inclined joint structure on the plane, so that the space utilization is reduced. The invention eliminates the problem of harmful space of the traditional small-number frog, greatly reduces the vibration and noise when the train passes through the frog, improves the smoothness and comfort when the train passes through the frog, and reduces the dynamic impact action on the frog; the strength and the stability of the frog are improved, and the service life of the frog is prolonged; the length and the occupied space of the frog are reduced. The invention meets the current track traffic directions of environmental protection, high efficiency and disease reduction, can effectively reduce the problems of vibration and secondary structure noise generated during the running of urban track traffic vehicles, and can meet the turnout passing speed requirement of small-number turnouts.
It should be apparent that the foregoing description and illustrations are by way of example 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 will include any embodiments falling within the foregoing description and the appended claims.
Claims (10)
1. The utility model provides a little number damping and noise reduction frog structure for rail transit, contains at least that the point rail, wing rail, fork follow rail, interval iron and conversion equipment, its characterized in that:
the heel end of the point rail and the front end of the fork rail adopt a spacing iron type movable joint structure or a spacing iron type double-limb inclined joint structure, the front end of the spacing iron is closely attached to the wing rail, a certain gap is reserved between the front end of the spacing iron and the point rail so as to be convenient for the pulling space requirement of the point rail, and the rear end of the spacing iron is closely attached to the wing rail and the fork rail so as to ensure the fixation of the relative positions of the wing rail, the fork rail and the spacing iron;
one side of the front end of the point rail is connected with one end of a traction rod, the middle of the traction rod provides a fulcrum through a support rail, the other end of the traction rod is connected with a conversion device, so that the traction rod is driven through the conversion device to pull the point rail, and the wing rail and the fork heel rail are connected with a rail foundation through a fastener.
2. The small-sized vibration and noise reduction frog structure for rail transit according to claim 1, wherein: in the spacing iron type double-limb inclined joint structure, a large base plate is arranged at the heel end of the center rail, and a pivot structure is arranged on the large base plate to be assembled with the center rail into a whole.
3. The small-sized vibration and noise reduction frog structure for rail transit according to claim 1, wherein: the point rail is made of alloy steel materials and is assembled into a whole through bolts or is integrally machined by an alloy steel block.
4. The small-sized vibration and noise reduction frog structure for rail transit according to claim 1, wherein: the toe end of the point rail is provided with an anti-jumping platform or the side surface of the point rail is provided with an anti-jumping boss so as to realize the vertical jumping of the point rail caused when the train passes a fork.
5. The frog assembly of claim 1 wherein: the heel end or the side surface of the heart rail is provided with a longitudinal limiting device to limit the longitudinal movement of the heart rail.
6. The small-sized vibration and noise reduction frog structure for rail transit according to claim 1, wherein: the point rail adopts the level to hide sharp formula structure when leaning on with the wing rail, is about to increase horizontal slicing width in the wing rail position that point rail pointed end corresponds to guarantee good vertical stability and point rail most advanced and be difficult for being damaged by the wheel pad.
7. The small-sized vibration and noise reduction frog structure for rail transit according to claim 1, wherein: the point rail adopts an approximate triangle or approximate shuttle-shaped structure on the plane, and the fork and the heel rail adopt a straight joint or inclined joint structure on the plane so as to reduce the overall occupied space of the frog.
8. The small-sized vibration and noise reduction frog structure for rail transit according to claim 1, wherein: when the spacer iron type movable joint structure is adopted, a flange crossing fork structure is adopted at the joint between the heel end of the center rail and the fork heel rail, so that the impact of the wheel flange and the rail joint is avoided, and the vibration and the noise are reduced.
9. The small-sized vibration and noise reduction frog structure for rail transit according to claim 1, wherein: interval iron adopts five holes and above interval iron, and the front end is equipped with 2 and above holes, and the downthehole stud that adopts of front end realizes being connected between heart rail, wing rail, the interval iron, set up boss and plain washer in the middle of the stud, the rear end is equipped with 3 and above holes, and the downthehole high-strength bolt that adopts of rear end realizes being connected between heart rail, wing rail, the fork and the rail.
10. The small-sized vibration and noise reduction frog structure for rail transit according to claim 9, wherein: the holes at the front end and the rear end of the spacer iron are round holes, long round holes, partial round holes or partial long round holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122217.5A CN111270572A (en) | 2020-02-27 | 2020-02-27 | Small-number vibration-damping noise-reducing frog structure for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122217.5A CN111270572A (en) | 2020-02-27 | 2020-02-27 | Small-number vibration-damping noise-reducing frog structure for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111270572A true CN111270572A (en) | 2020-06-12 |
Family
ID=70995323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010122217.5A Pending CN111270572A (en) | 2020-02-27 | 2020-02-27 | Small-number vibration-damping noise-reducing frog structure for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111270572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263073A (en) * | 2021-12-22 | 2022-04-01 | 中铁高新工业股份有限公司 | Pivot type movable point rail frog antifriction device |
-
2020
- 2020-02-27 CN CN202010122217.5A patent/CN111270572A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263073A (en) * | 2021-12-22 | 2022-04-01 | 中铁高新工业股份有限公司 | Pivot type movable point rail frog antifriction device |
| WO2023116053A1 (en) * | 2021-12-22 | 2023-06-29 | 中铁高新工业股份有限公司 | Pivot type movable point frog friction reduction device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105416331B (en) | A kind of single rail bogie of the straddle-type without primary spring | |
| CN203546524U (en) | Medium-and-low-speed magnetically-suspended traffic integral-type road-bed track structure | |
| CN108486965A (en) | Track line switch area frog structure | |
| CN111270572A (en) | Small-number vibration-damping noise-reducing frog structure for rail transit | |
| CN203668767U (en) | Assembly rail crawling-prevention device | |
| CN101255673A (en) | Double-rail-head steel rail and composed double-rail track | |
| CN211922094U (en) | Small-number vibration-damping noise-reducing frog structure for rail transit | |
| CN201087315Y (en) | Reinforced wing rail for railway combined frog | |
| CN106758565B (en) | It is a kind of to multiply more formula railway frog and the railway switch with the railway frog | |
| CN218986630U (en) | Derailment prevention device for railway train | |
| CN203795249U (en) | Flexible bendable switch rail structure | |
| CN206512527U (en) | It is a kind of to multiply more formula railway frog and the railway switch with the railway frog | |
| CN114808559A (en) | Damping type city rail turnout switch | |
| CN210684340U (en) | Y-shaped steel sleeper capable of being used for toothed rail line | |
| CN212000396U (en) | New Zealand steel rail and track gauge No. 7.5 compound intersection | |
| CN201671025U (en) | Connecting device for solid concrete roadbed of in-plant railway track | |
| CN213836280U (en) | Height-adjustable anti-pulling support | |
| CN100557132C (en) | A kind of grade crossing rail plate | |
| CN2816103Y (en) | Elastic slide plate for point rail of express railroad switch | |
| CN111335077A (en) | Anti-splashing high-speed ballast track structure | |
| CN109944116A (en) | Track line switch area railway switch structure | |
| CN202157273U (en) | Hanging basket separating type walking track structure | |
| CN212533548U (en) | Improved alloy steel point rail combined frog of groove-shaped rail | |
| CN213447888U (en) | No. 6 intersection points of 60kg/m steel rail | |
| CN217733617U (en) | No. 9 single-open switch wing rail strenghthened type alloy steel combination frog |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |