Movable center rail fork-removing sliding bed device

Abstract

The utility model discloses a movable heart rail fork-removing sliding bed plate device, comprising a bottom plate, a sliding table plate, and a movable heart rail assembly, wherein the bottom plate is detachably mounted on the fork sleeper, and a roller assembly is arranged on the bottom plate; the sliding table plate is slidably connected to the bottom plate, and a groove for accommodating the roller assembly is provided on the sliding table plate, and the inner wall of the groove is arranged at intervals relative to the roller assembly, and a slide for contacting the roller assembly is arranged in the groove; the movable heart rail assembly is fixed on the sliding table plate and used to support a wheel pair; the movable heart rail assembly is used to drive the sliding table plate to slide on the bottom plate, so as to drive the slide to move to contact with the roller assembly, thereby forming rolling friction between the bottom plate and the sliding table plate. By arranging the roller assembly between the bottom plate and the sliding table plate, when the movable heart rail assembly arranged on the sliding table plate drives the sliding table plate to move, the movement between the sliding table plate and the bottom plate is converted from sliding friction to rolling friction, thereby reducing the friction force when the movable heart rail is converted.

Description

Technical Field

[0001] The utility model relates to the technical field of railway tracks, in particular to a movable center rail fork-removing sliding bed plate device. Background Art

[0002] Turnouts are line connection equipment for locomotives and vehicles to transfer from one track to or cross over another track, and are an important part of the track structure. At present, the most commonly used in railways and urban rail transit is the ordinary single-opening turnout, which consists of three units: switch, connection part, frog and guardrail. Frog refers to the equipment that allows the wheel to cross from one rail to another. It is composed of a fork core, wing rails and connecting parts. According to the structural type, it is divided into two types: fixed frog and movable frog. For fixed frogs, there is a distance from the throat of the frog to the actual tip of the heart rail where the track line is interrupted. This is the harmful space of the turnout. The existence of harmful space also limits the speed of the train passing through the turnout, which is very unfavorable for the operation of high-speed trains.

[0003] In order to eliminate harmful space, a movable heart rail turnout structure was developed, and its main feature is that the frog heart rail can be moved. When we want to open a track in a certain direction, the frog heart rail of the movable heart rail will be closely attached to the wing rail in the same direction of opening, and separated from the other wing rail. In this way, the harmful space of ordinary turnouts does not exist.

[0004] As an important component of the movable heart rail frog, the sliding bed structure of the movable heart rail frog not only bears the rail parts and the train operation, but also provides a sliding platform for the sliding of the movable heart rail assembly. However, due to the existing movable heart rail frog pad structure and the fact that the bottom of the movable heart rail is mostly a non-machined surface, there is a large friction between the movable heart rail and the pad platform. For example, the existing Chinese invention patent with application number 202010433409.8 discloses a movable heart rail fork long and short heart rail dislocation device, in which the movable long heart rail and the short heart rail are both moved by sliding. In the process of the movable heart rail moving back and forth, the fixed ends of the movable heart rail produce a large lateral deformation due to the friction force, which is quite different from the ideal state when there is no friction force, forming an insufficient displacement. The existence of insufficient displacement causes the actual linear shape of the movable heart rail frog to deviate from the theoretical position. If the insufficient displacement is large, it will affect the stability of the vehicle passing through the turnout and the comfort of the ride, and in severe cases, it will affect the driving safety. Utility Model Content

[0005] The utility model provides a movable heart rail fork-removing sliding bed plate device to solve the technical problem of how to reduce the friction force when the movable heart rail moves, thereby reducing the influence of insufficient displacement on the movable heart rail.

[0006] According to the utility model, a movable heart rail fork-removing sliding bed plate device is provided, comprising a base plate, a sliding table plate, and a movable heart rail assembly, wherein the base plate is detachably mounted on the switch sleeper, and a roller assembly is arranged on the base plate; the sliding table plate is slidably connected to the base plate, a groove for accommodating the roller assembly is opened on the sliding table plate, the inner wall of the groove is spaced relative to the roller assembly, and a slide for contacting the roller assembly is arranged in the groove; the movable heart rail assembly is fixed on the sliding table plate and is used to support the wheel pair; the movable heart rail assembly is used to drive the sliding table plate to slide on the base plate, so as to drive the slide to move to a state of contacting the roller assembly, thereby forming rolling friction between the base plate and the sliding table plate.

[0007] Furthermore, a plurality of mounting platforms are fixedly connected to the base plate, the mounting platforms are arranged at intervals along the length direction of the base plate, and a plurality of groups of roller assemblies are provided, the roller assemblies are arranged in one-to-one correspondence with the mounting platforms and are rotatably connected to the mounting platforms.

[0008] Further, the mounting platform includes a first support platform and a second support platform spaced apart along the width direction of the base plate, a first mounting hole is formed on the first support platform, and a second mounting hole corresponding to the first mounting hole is formed on the second support platform, the roller assembly includes at least one roller member arranged along the length direction of the mounting platform, the roller member includes a column body and a first connecting column and a second connecting column respectively arranged at both ends of the column body, the first connecting column is rotatably connected to the first mounting hole, and the second connecting column is rotatably connected to the second mounting hole.

[0009] Furthermore, a first bearing is provided between the first connecting column and the first mounting hole, and a second bearing is provided between the second connecting column and the second mounting hole.

[0010] Furthermore, a plurality of first mounting holes are opened along the length direction of the first support platform, a plurality of second mounting holes are opened along the length direction of the second support platform, the second mounting holes are arranged in one-to-one correspondence with the first mounting holes, and the roller parts are arranged in one-to-one correspondence with the first mounting holes.

[0011] Furthermore, a plurality of grooves are formed on the sliding table, and the grooves are arranged at intervals along the length direction of the sliding table and correspond one to one to the roller assemblies.

[0012] Furthermore, the slide is located in the middle of the groove, so that the groove is divided into a first accommodating groove and a second accommodating groove by the slide.

[0013] Furthermore, the movable center rail assembly includes a long center rail fixedly connected to the sliding table and a short center rail cooperating with the long center rail, a spacer iron is arranged between the long center rail and the short center rail, and the long center rail and the short center rail are fastened and connected by connecting bolts.

[0014] Furthermore, a first stopper and a second stopper are arranged at intervals on the sliding table, the first stopper is used to abut against the long center rail, and the second stopper is used to abut against the short center rail.

[0015] Furthermore, a positioning hole is formed on the bottom plate, and a positioning bolt for fixing the bottom plate on the track is installed in the positioning hole.

[0016] The utility model has the following beneficial effects:

[0017] In the movable heart rail fork-removing sliding bed plate device of the utility model, a roller assembly is arranged on the bottom plate, a groove is opened on the sliding table plate, and a landslide is arranged in the groove. When no train passes through the movable heart rail assembly, the sliding table plate and the bottom plate are in a stationary state. At this time, the roller assembly is accommodated in the groove to prevent the roller from being in a stressed state for a long time and being worn, compressed and damaged. When the train passes through the movable heart rail assembly, the movable heart rail assembly moves under the traction of an external traction device to achieve overall movement with the sliding table plate. At this time, the roller assembly contacts the landslide, so that the sliding table plate is separated from the bottom plate. At this time, the movement between the sliding table plate and the bottom plate is converted from sliding friction to rolling friction, thereby reducing the friction force when the movable heart rail moves, and further reducing the influence of insufficient displacement on the movable heart rail.

[0018] During specific implementation, when the movable heart rail assembly is not in operation, the roller assembly is accommodated in the groove. At this time, the sliding table is in contact with the bottom plate, and the roller is not subjected to force. When the movable heart rail assembly is in operation, the movable heart rail assembly is pulled by external traction, and the movable heart rail assembly drives the sliding table to slide until the roller assembly accommodated in the groove contacts the landslide. At this time, the sliding table is no longer in contact with the bottom plate, and the movement between the sliding table and the bottom plate is converted from sliding friction to rolling friction, thereby reducing the friction force when the movable heart rail moves.

[0019] In summary, by setting a roller assembly between the base plate and the sliding table, when the movable heart rail assembly set on the sliding table drives the sliding table to move, the movement between the sliding table and the base plate can be converted from sliding friction to rolling friction, thereby reducing the friction force of the movable heart rail when it moves, and further reducing the influence of insufficient displacement on the movable heart rail.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of a movable center rail fork-removing and sliding bed plate device in a preferred embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the bottom plate of the preferred embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a rolling assembly of a preferred embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the use state of the movable center rail fork-removing and sliding bed plate device of the preferred embodiment of the utility model.

[0026] Legend:

[0027] 100, bottom plate; 101, mounting platform; 102, first supporting platform; 103, first mounting hole; 104, second supporting platform; 105, second mounting hole; 106, positioning hole;

[0028] 200, roller assembly; 201, first connecting column; 202, second connecting column; 203, column;

[0029] 300, sliding plate; 301, groove; 302, first receiving groove; 303, second receiving groove; 304, slide;

[0030] 400, movable center rail assembly; 401, long center rail; 402, short center rail; 403, spacer rail;

[0031] 500, first stopper; 501, second stopper. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0033] like Figure 1 to Figure 3As shown, a movable heart rail fork-removing sliding bed plate device provided by the utility model comprises a bottom plate 100, a sliding table 300, and a movable heart rail assembly 400. The bottom plate 100 is detachably mounted on the fork sleeper, and a roller assembly 200 is arranged on the bottom plate 100; the sliding table 300 is slidably connected to the bottom plate 100, and a groove 301 for accommodating the roller assembly 200 is opened on the sliding table 300, and the inner wall of the groove 301 is opposite to the roller assembly 200. The groove 301 is arranged at intervals, and a slide 304 for contacting the roller assembly 200 is provided in the groove; the movable heart rail assembly 400 is fixed on the sliding table 300 and is used to support the wheelset; the movable heart rail assembly 400 is used to drive the sliding table 300 to slide on the base plate 100, so that the roller assembly 200 located in the groove 301 contacts the slide 304, thereby forming rolling friction between the base plate 100 and the sliding table 300.

[0034] In this embodiment, by arranging the roller assembly 200 on the base plate 100, opening the groove 301 on the sliding table 300, and arranging the landslide 304 in the groove 301, when no wheelset passes through the movable heart rail assembly 400, the sliding table 300 and the base plate 100 are in a stationary state, at which the roller assembly 200 is accommodated in the groove 301 to prevent the roller from being in a stress state for a long time and being worn, compressed and damaged. When the wheelset passes through the movable heart rail assembly 400, the movable heart rail assembly 400 moves under the traction of an external traction device to achieve overall movement with the sliding table 300. At this time, the roller assembly 200 contacts the landslide 304, so that the sliding table 300 is separated from the base plate 100. At this time, the movement between the sliding table 300 and the base plate 100 is converted from sliding friction to rolling friction, thereby reducing the friction force of the movable heart rail during movement, thereby reducing the influence of insufficient displacement on the movable heart rail. The slide 304 is in an inverted cone shape, and the transition surface between the slide 304 and the sliding plate 300 is in a rounded transition, and the tip of the slide 304 is also in a rounded transition.

[0035] During specific implementation, when the movable heart rail assembly 400 is not in operation, the roller assembly 200 is accommodated in the groove 301. At this time, the sliding table 300 is in contact with the base plate 100, and the roller is not subjected to force. When the movable heart rail assembly 400 is in operation, the movable heart rail assembly 400 is pulled by external traction, and the movable heart rail assembly 400 drives the sliding table 300 to slide until the roller assembly 200 accommodated in the groove 301 is in contact with the slide 304. At this time, the sliding table 300 is no longer in contact with the base plate 100, and the movement between the sliding table 300 and the base plate 100 is converted from sliding friction to rolling friction, thereby reducing the friction force when the movable heart rail moves.

[0036] In summary, by setting the roller assembly 200 between the base plate 100 and the sliding table 300, when the movable heart rail assembly 400 set on the sliding table 300 drives the sliding table 300 to move, the movement between the sliding table 300 and the base plate 100 can be converted from sliding friction to rolling friction, thereby reducing the friction force of the movable heart rail when it moves, and further reducing the influence of insufficient displacement on the movable heart rail.

[0037] Furthermore, a plurality of mounting platforms 101 are fixedly connected to the base plate 100 , and the mounting platforms 101 are arranged at intervals along the length direction of the base plate 100 . A plurality of roller assemblies 200 are provided, and the roller assemblies 200 are arranged one-to-one with the mounting platforms 101 and are rotatably connected to the mounting platforms 101 .

[0038] Specifically, multiple mounting platforms 101 can be provided to correspondingly provide multiple groups of roller assemblies 200, thereby reducing the supporting pressure of a single group of roller assemblies 200 and increasing the service life of the roller assemblies 200. In this embodiment, two mounting platforms 101 are provided at intervals along the length direction of the base plate 100, and two groups of roller assemblies 200 are provided accordingly, which can stably support the sliding table 300, so that the sliding table 300 can move stably when cooperating with the roller assemblies 200.

[0039] Furthermore, the mounting platform 101 includes a first support platform 102 and a second support platform 104 which are correspondingly arranged along the width direction of the base plate 100, the first support platform 102 is provided with a first mounting hole 103, the second support platform 104 is provided with a second mounting hole 105 which is spaced apart from the first mounting hole 103, the roller assembly 200 includes at least one roller member arranged along the length direction of the mounting platform 101, the roller member includes a column 203 and a first connecting column 201 and a second connecting column 202 which are respectively arranged at both ends of the column 203, the first connecting column 201 is rotatably connected to the first mounting hole 103, and the second connecting column 202 is rotatably connected to the second mounting hole 105.

[0040] In this embodiment, the first support platform 102 and the second support platform 104 are both arranged in a trapezoidal shape, and the height of the central axis of the first mounting hole 103 from the base surface needs to be greater than the radius of the column 203, so as to ensure that the column 203 can be suspended between the first support platform 102 and the second support platform 104, thereby ensuring that the column 203 can rotate normally. Specifically, the first connecting column 201 and the second connecting column 202 are respectively arranged at both ends of the column 203 and are coaxially arranged with the column 203, the first connecting column 201 is rotatably connected to the first connecting hole, and the second connecting column 202 is rotatably connected to the connecting mounting hole, so that the column 203 can rotate on the mounting platform 101.

[0041] Further, a first bearing is provided between the first connecting column 201 and the first mounting hole 103, and a second bearing is provided between the second connecting column 202 and the second mounting hole 105. In this embodiment, the first bearing is provided between the first connecting column 201 and the first mounting hole 103, and the second bearing is provided between the second connecting column 202 and the second mounting hole 105. The first bearing and the second bearing can reduce the friction force of the roller member when rotating on the mounting platform 101 and stably support the roller member.

[0042] Furthermore, a plurality of first mounting holes 103 are opened along the length direction of the first support platform 102, a plurality of second mounting holes 105 are opened along the length direction of the second support platform 104, the second mounting holes 105 are arranged in a one-to-one correspondence with the first mounting holes 103, and the roller parts are arranged in a one-to-one correspondence with the first mounting holes 103.

[0043] Specifically, a plurality of roller members can be arranged on a mounting platform 101 by providing a plurality of first mounting holes 103 and second mounting holes 105. In the present embodiment, two first mounting holes 103 spaced apart are provided on the first support platform 102, and two second mounting holes 105 spaced apart are provided on the corresponding second support platform 104. Two groups of corresponding roller members are also provided. The two groups of roller members spaced apart along the length direction of the mounting platform 101 can increase the contact area between the roller members and the slide 304, and the roller members can move more smoothly along the slide 304, thereby improving the stability of the train when passing through the movable heart rail assembly 400.

[0044] Furthermore, the sliding table 300 is provided with a plurality of grooves 301, which are arranged at intervals along the length direction of the sliding table 300 and correspond to the roller assemblies 200 one by one. In this embodiment, two groups of grooves 301 are provided, and two groups of corresponding mounting platforms 101 and roller assemblies 200 are also provided, which can stably support the sliding table 300, so that the sliding table 300 can move stably when cooperating with the roller assemblies 200.

[0045] Furthermore, the slide 304 is located in the middle of the groove 301 , so that the groove 301 is divided into a first accommodating groove 302 and a second accommodating groove 303 by the slide 304 .

[0046] In this embodiment, the arrangement of the first accommodating groove 302 and the second accommodating groove 303 can make the movable center rail assembly 400 be in two static states, namely, being located at the far left or far right relative to the bottom plate 100 .

[0047] Reference Figure 4When the movable heart rail assembly 400 is converted from the right side to the left side, the movable heart rail assembly 400 is pulled by external traction. Since the first stopper 500 and the second stopper 501 are welded on both sides of the sliding table 300, the movable heart rail assembly 400 drives the sliding table 300 to slide; the sections P1 and P3 of the slide 304 inside the sliding table 300 are in contact with the roller assembly 200. Since the roller group has a certain height, the sliding table 300 is lifted, and the movable heart rail assembly 400 and the sliding table 300 are supported by the contact between the slide 304 and the roller assembly 200. At this time, the positions J1, J2, J3, etc. between the bottom plate 100 and the sliding table 300 are no longer After the movable heart rail assembly 400 is switched to the left, the roller assembly 200 gradually climbs down the P2 and P4 surfaces. When the movable heart rail assembly 400 is in close contact with the wing rail on the other side, the roller assembly 200 is completely away from the slide 304 section. The roller assembly 200 on the left side is located in the second receiving groove 303 on the right side of the slide 304 on the left side, and the roller on the right side is located in the second receiving groove 303 on the right side of the slide 304 on the right side. The gravity of the movable heart rail assembly 400 and the slide plate 300 is again transmitted to the bottom plate 100 through the contact surfaces such as J1, J2, and J3. At this time, the roller assembly 200 is not subjected to force.

[0048] Furthermore, the movable center rail assembly 400 includes a long center rail 401 fixedly connected to the sliding platform 300 and a short center rail 402 matched with the long center rail 401, and a spacer iron 403 is provided between the long center rail 401 and the short center rail 402, and the long center rail 401 and the short center rail 402 are fastened and connected by connecting bolts. In this embodiment, when the spacer iron 403 is provided between the long center rail 401 and the short center rail 402, and the long center rail 401 and the short center rail 402 are detachably connected by bolts, the spacing distance between the long center rail 401 and the short center rail 402 can be adjusted by replacing the spacer iron 403, thereby adapting to different trains passing through, and improving the versatility of the movable center rail when adapting.

[0049] Furthermore, the sliding table 300 is provided with a first stopper 500 and a second stopper 501 at intervals, wherein the first stopper 500 is used to abut against the long center rail 401, and the second stopper 501 is used to abut against the short center rail 402. In this embodiment, the first stopper 500 and the second stopper 501 are both fixed to the sliding table 300 by welding, and are used to limit the movement of the movable center rail assembly 400 and ensure that the movable center rail assembly 400 can be pulled with the sliding table 300 under the traction of an external traction device.

[0050] Furthermore, a positioning hole 106 is provided on the bottom plate 100, and a positioning bolt for fixing the bottom plate 100 on the track is installed in the positioning hole 106. In this embodiment, the bottom plate 100 is fixed to the bottom plate 100 by bolt connection, which facilitates the disassembly and installation of the bottom plate 100, and further facilitates the adjustment of the position of the movable heart rail assembly 400.

[0051] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A movable center rail fork-removing sliding bed plate device, characterized in that: include: A bottom plate (100), the bottom plate (100) being used for being detachably mounted on a switch sleeper, and a roller assembly (200) being arranged on the bottom plate (100); A sliding table (300), the sliding table (300) is slidably connected to the base plate (100), a groove (301) for accommodating the roller assembly (200) is provided on the sliding table (300), an inner wall of the groove (301) is spaced relative to the roller assembly (200), and a slide (304) for contacting the roller assembly (200) is provided in the groove (301); A movable heart rail assembly (400), wherein the movable heart rail assembly (400) is fixed on the sliding platform (300) and is used to support a wheelset; The movable center rail assembly (400) is used to drive the sliding table (300) to slide on the base plate (100), so as to drive the slideway (304) to move to a state of contact with the roller assembly (200), thereby forming rolling friction between the base plate (100) and the sliding table (300).

2. The movable center rail fork-removing sliding bed plate device according to claim 1, characterized in that: A plurality of mounting platforms (101) are fixedly connected to the base plate (100), the mounting platforms (101) are arranged at intervals along the length direction of the base plate (100), a plurality of roller assemblies (200) are arranged in a one-to-one correspondence with the mounting platforms (101) and are rotatably connected to the mounting platforms (101).

3. The movable center rail fork-removing sliding bed plate device according to claim 2, characterized in that: The mounting platform (101) comprises a first support platform (102) and a second support platform (104) which are arranged at intervals along the width direction of the base plate (100); a first mounting hole (103) is provided on the first support platform (102); a second mounting hole (105) corresponding to the first mounting hole (103) is provided on the second support platform (104); the roller assembly (200) comprises at least one roller member arranged along the length direction of the mounting platform (101); the roller member comprises a column (203) and a first connecting column (201) and a second connecting column (202) respectively arranged at two ends of the column (203); the first connecting column (201) is rotatably connected to the first mounting hole (103); and the second connecting column (202) is rotatably connected to the second mounting hole (105).

4. The movable center rail fork-removing sliding bed plate device according to claim 3, characterized in that: A first bearing is provided between the first connecting column (201) and the first mounting hole (103), and a second bearing is provided between the second connecting column (202) and the second mounting hole (105).

5. The movable center rail fork-removing sliding bed plate device according to claim 3, characterized in that: A plurality of first mounting holes (103) are provided along the length direction of the first support platform (102), a plurality of second mounting holes (105) are provided along the length direction of the second support platform (104), the second mounting holes (105) are arranged in a one-to-one correspondence with the first mounting holes (103), and the roller members are arranged in a one-to-one correspondence with the first mounting holes (103).

6. The movable center rail fork-removing sliding bed plate device according to claim 1, characterized in that: The sliding table (300) is provided with a plurality of grooves (301), and the grooves (301) are arranged at intervals along the length direction of the sliding table (300) and are arranged one-to-one corresponding to the roller assemblies (200).

7. The movable center rail fork-removing sliding bed plate device according to claim 6, characterized in that: The slide (304) is located in the middle of the groove (301), so that the groove (301) is divided into a first accommodating groove (302) and a second accommodating groove (303) by the slide (304).

8. The movable center rail fork-removing sliding bed plate device according to claim 1, characterized in that: The movable center rail assembly (400) comprises a long center rail (401) fixedly connected to the sliding platform (300) and a short center rail (402) matched with the long center rail (401), a spacer iron (403) is arranged between the long center rail (401) and the short center rail (402), and the long center rail (401) and the short center rail (402) are fastened and connected by connecting bolts.

9. The movable center rail fork-removing sliding bed plate device according to claim 8, characterized in that: A first stopper (500) and a second stopper (501) are arranged at intervals on the sliding table (300); the first stopper (500) is used to abut against the long center rail (401), and the second stopper (501) is used to abut against the short center rail (402).

10. The movable center rail fork-removing sliding bed plate device according to any one of claims 1 to 9, characterized in that: The base plate (100) is provided with a positioning hole (106), and a positioning bolt for fixing the base plate (100) on a track is installed in the positioning hole (106).

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