Movable point rail frog slide plate base plate device

Abstract

The utility model discloses a movable point rail frog slide plate base plate device, which belongs to the technical field of railway tracks and comprises a bottom plate, two wing rails arranged on the bottom plate and a point rail positioned between the two wing rails. A platen is arranged between the point rail and the bottom plate, the point rail is fixedly connected with the platen, a rotary connecting structure is arranged between the platen and the bottom plate, and the rotary connecting structure can convert transverse thrust borne by the point rail into transverse component force enabling the point rail to move horizontally and vertical component force enabling the point rail to ascend. The point rail switching device has the advantage that frictional resistance in the point rail switching process is reduced.

Description

Technical Field

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

[0002] Turnouts are crucial switching devices in rail transit, guiding trains from one track to another. Frogs, a crucial component of turnouts, are available in two types: fixed frogs and movable frogs. Fixed frogs create a harmful space where the track gauge line is interrupted, creating significant vertical and lateral structural irregularities that severely impact train safety and stability when crossing a turnout. The movable frog structure, however, uses the movable frog to create a close fit between the frog's head rail and the wing rails, eliminating the harmful space associated with fixed frogs and improving driving stability and safety.

[0003] There are two types of pad structures for movable heart rail frogs: fixed-end pads, which fasten the wing rails to the heel ends of the long and short heart rails using a fastener system; and slider-bed pads, which also fasten the wing rails on both sides and a slider-bed structure in the middle that supports the heart rail and provides sliding support. A characteristic of movable heart rail frogs is that the movable portion in front of the fixed end of the frog allows for left and right movement of the long and short heart rail assemblies through traction. Existing movable heart rail frog pads, due to the high friction between the movable heart rail and the pad, produce significant lateral deformation between the fixed ends of the movable heart rail during back-and-forth movement. This deviates significantly from the ideal frictionless state, resulting in under-displacement. This under-displacement causes the actual alignment of the movable heart rail frog to deviate from its theoretical position. If the under-displacement is large, it can affect vehicle stability and passenger comfort during turnout passage, and in severe cases, can impact driving safety.

[0004] The movable heart rail is an important component of the switch and guard rail. When the train enters the switch connection part, it transitions along the guide curve to the switch and guard rail unit. By switching the movable heart rail, the switch heart rail and the wing rail are closely attached, eliminating the harmful space of the fixed switch, guiding the train to the main line or lateral direction, and improving the driving stability and safety. The movable heart rail switch slide bed plate pad structure is an important component of the movable heart rail switch. It not only supports the rail parts and the train, but also provides a sliding platform for the sliding of the movable heart rail assembly. However, due to the existing movable heart rail switch pad structure and the fact that the bottom of the movable heart rail is mostly non-machined, there is a large friction between the movable heart rail and the pad plate. During the back and forth movement of the movable heart rail, the fixed ends of the movable heart rail produce a large lateral deformation due to the friction, which is quite different from the ideal state when there is no friction, resulting in insufficient displacement. The existence of insufficient displacement causes the actual line shape of the movable point rail fork 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 serious cases affect driving safety. Utility Model Content

[0005] The utility model provides a movable point rail frog sliding bed plate pad device to solve the technical problem of large friction resistance during the point rail conversion process.

[0006] According to one aspect of the utility model, a movable heart rail frog slide bed pad device is provided, comprising a base plate, two wing rails arranged on the base plate, and a heart rail located between the two wing rails; a table plate is provided between the heart rail and the base plate, the heart rail is fixedly connected to the table plate, and a rotating connection structure is provided between the table plate, the rotating connection structure can convert the lateral thrust exerted on the heart rail into a lateral component force causing the heart rail to translate and a vertical component force causing the heart rail to rise.

[0007] Optionally, the rotating connection structure includes a vertically arranged rotating shaft and a rotating rod, the rotating shaft and the rotating rod are rotatably matched, and a rotating shaft is respectively provided at both ends of the rotating shaft rod, one rotating shaft is rotatably matched with the table plate, and the other rotating shaft is rotatably matched with the base plate, and the rotating shaft is arranged along the length direction of the center rail.

[0008] Optionally, the table is provided with a first rotating shaft mounting groove for cooperating with the rotating shaft and a cover plate for supporting the rotating shaft; the base is provided with a second rotating shaft mounting groove for cooperating with the rotating shaft and a cover plate for supporting the rotating shaft.

[0009] Optionally, the rotating rods are arranged in pairs, and each rotating rod is rotatably engaged with two rotating shafts respectively.

[0010] Optionally, a first cover plate mounting groove for accommodating the cover plate is opened on the table plate, so that the cover plate on the table plate does not exceed the lower plane of the table plate; a second cover plate mounting groove for accommodating the cover plate is opened on the bottom plate, so that the cover plate on the bottom plate does not exceed the upper plane of the bottom plate.

[0011] Optionally, a rubber pad is provided under the bottom plate.

[0012] Optionally, a gusset plate for pressing the center rail is provided on the table top, and a gusset plate is provided on the gusset plate with a pressing surface matching the surface contour of the center rail, and one gusset plate is provided on each side of the center rail.

[0013] Optionally, the cross-sections of both ends of the rotating shaft are hexagonal structures, and the shapes of the first rotating shaft mounting groove and the second rotating shaft mounting groove match the shapes of the ends of the rotating shaft to limit the rotation of the rotating shaft.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. In the stationary state, the heart rail fits with one wing rail. When the movable heart rail frog needs to guide the train into the other side of the track, the heart rail needs to fit with the other side wing rail. At this time, due to the external traction, the heart rail is subjected to an external force to the left, and the heart rail has a leftward acceleration. Due to the action of the rotating connection structure, the lateral thrust on the heart rail is converted into a lateral component that causes the heart rail to move horizontally and a vertical component that causes the heart rail to rise, so that the platform and the heart rail are lifted together. The bottom of the platform is no longer in contact with the upper part of the base plate. The friction between the original heart rail and the platform is converted into the friction of the rotating connection structure, which can significantly reduce the resistance effect of the conversion process, realize the operation of the movable heart rail assembly, reduce the influence of friction resistance on the switching, and eliminate insufficient displacement as much as possible;

[0016] 2. Due to the presence of the gusset plate, the heart rail is fixed in the transverse direction, which greatly eliminates the risk of the heart rail being converted laterally during the conversion process and is conducive to improving the heart rail structure.

[0017] 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

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the movable center rail frog slide bed plate device of the utility model;

[0020] Figure 2This is a schematic diagram of the base plate structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the pad plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the rotary connection structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the motion process state of the utility model.

[0024] Legend:

[0025] 1. Wing rail; 2. Center rail; 3. Buckle plate; 4. Tabletop; 5. Bottom plate; 6. Rubber pad; 7. Rotating connection structure; 71. Rotating shaft; 72. Rotating rod; 73. Bearing; 8. Cover plate; 42. First rotating shaft mounting slot; 44. First cover plate mounting slot; 52. Second rotating shaft mounting slot; 54. Second cover plate mounting slot. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0027] The following is combined with Figure 1-5 This application is described in further detail.

[0028] The embodiment of the present application discloses a movable frog slide bed plate device.

[0029] Reference Figure 1 The movable heart rail 2 frog slide bed pad device includes a base plate 5, two wing rails 1 arranged on the base plate 5, and the heart rail 2 located between the two wing rails 1; a table plate 4 is arranged between the heart rail 2 and the base plate 5, and the heart rail 2 is fixedly connected to the table plate 4. A rotating connection structure 7 is arranged between the table plate 4 and the base plate 5. The rotating connection structure 7 can convert the lateral thrust exerted on the heart rail 2 into a lateral component force that causes the heart rail 2 to translate and a vertical component force that causes the heart rail 2 to rise. By arranging the table plate 4 between the base plate 5 and the heart rail 2 and using the rotating connection structure 7 to decompose the lateral thrust exerted on the heart rail 2 into lateral translation and vertical lifting components, the friction force can be significantly reduced during the conversion of the heart rail 2, thereby reducing the conversion resistance and the occurrence of insufficient displacement; the vertical component force of the rising heart rail 2 causes the table plate 4 to break away from the base plate 5, avoiding the resistance caused by traditional sliding friction, thereby ensuring the stability and smoothness of the heart rail 2 during the conversion process, improving the operating efficiency of the switch system, and ensuring the stability and safety of the train when passing through the switch.

[0030] Reference Figure 2 and Figure 3Specifically, the heart rail 2 buckle plate 3 is long and has a heart rail 2 buckle bolt mounting hole on it. Similarly, the upper part of the table 4 has a heart rail 2 buckle plate 3 mounting bolt hole. The heart rail 2 buckle plate 3 is connected to the heart rail 2 and the table 4 by bolts to ensure that the three are a whole during the movement.

[0031] Reference Figure 4 The rotating connection structure 7 includes a vertically arranged rotating shaft 71 and a rotating rod 72. The rotating shaft 71 and the rotating rod 72 rotate in conjunction with each other. A rotating shaft 71 is provided at each end of the rotating shaft 71. One rotating shaft 71 rotates in conjunction with the table 4, and the other rotating shaft 71 rotates in conjunction with the base plate 5. The rotating shaft 71 is arranged along the length direction of the center rail 2. Through the cooperation of the vertically arranged rotating shaft 71 and the rotating rod 72, the two ends of the rotating shaft 71 are respectively connected to the table 4 and the base plate 5. When the center rail 2 is subjected to external force, its lateral thrust can be effectively converted into lateral translation force and vertical lifting force, thereby achieving smooth movement and lifting of the center rail 2. This structural setting not only reduces the friction between the center rail 2 and the base plate 5, but also ensures the smoothness and stability of the center rail 2 during the conversion process, effectively reduces the conversion resistance, improves the working efficiency of the device, and at the same time reduces the displacement error between the center rail 2 and the wing rail 1, ensuring the safe and smooth passage of the train in the switch area. Specifically, a bearing 73 is provided between the rotating shaft 71 and the rotating rod 72 to reduce friction.

[0032] The table 4 is provided with a first mounting groove for the rotating shaft 71 for cooperating with the rotating shaft 71 and a cover plate 8 for supporting the rotating shaft 71; the base plate 5 is provided with a second mounting groove for the rotating shaft 71 for cooperating with the rotating shaft 71 and a cover plate 8 for supporting the rotating shaft 71. By respectively providing the first and second mounting grooves for the rotating shaft 71 on the table 4 and the base plate 5, and providing the cover plate 8 for supporting the rotating shaft 71, the rotating shaft 71 can be effectively fixed and supported, ensuring that the rotating shaft 71 operates stably between the table 4 and the base plate 5, and preventing it from being displaced or loosened. The purpose of this structural design is to ensure the stable rotation of the rotating shaft 71, thereby ensuring that the center rail 2 can smoothly achieve lateral translation and vertical lifting during the conversion process, further reducing frictional resistance, and enhancing the reliability and stability of the overall structure. In addition, the presence of the cover plate 8 can protect the rotating shaft 71, reduce wear, and extend the service life of the device.

[0033] The rotating rods 72 are arranged in pairs, each rotating rod 72 rotating in conjunction with two rotating shafts 71. When the center rail 2 is subjected to external forces, the paired rotating rods 72 act simultaneously on the rotating shafts 71, more evenly dividing the lateral thrust of the center rail 2 into translational and lifting forces, ensuring smooth movement and rise of the center rail 2 during the switching process. The paired rotating rods 72 share the load more effectively, reducing the concentrated force on a single rotating rod 72 and rotating shaft 71, thereby reducing wear and failure rates, further improving the stability and reliability of the device, and ensuring the efficient and safe operation of the turnout system.

[0034] A first cover plate 8 mounting slot is provided on the tabletop 4 for accommodating the cover plate 8, ensuring that the cover plate 8 on the tabletop 4 does not protrude beyond the lower plane of the tabletop 4. A second cover plate 8 mounting slot is provided on the base plate 5 for accommodating the cover plate 8, ensuring that the cover plate 8 on the base plate 5 does not protrude beyond the upper plane of the base plate 5. By providing mounting slots for accommodating the cover plate 8 on both the tabletop 4 and the base plate 5, the cover plate 8 does not protrude beyond the lower plane of the tabletop 4 or the upper plane of the base plate 5 after installation. This ensures the flatness and integrity of the entire device, preventing the cover plate 8 from protruding and affecting the normal contact and movement between the heart rail 2 or the tabletop 4 and base plate 5. This design prevents increased friction or jamming caused by the protrusion of the cover plate 8, ensuring that the heart rail 2 can move smoothly and steadily during the conversion process.

[0035] A rubber pad 6 is installed beneath the base plate 5. Its primary function is to absorb and mitigate the vibration and impact forces generated by train operation, thereby reducing wear and tear on the entire slide bed assembly. The rubber pad 6 has excellent elasticity and shock-absorbing properties, effectively buffering the dynamic loads generated when a train passes through a turnout and reducing the stress on the base plate 5 and its components.

[0036] The baseplate 4 is equipped with a gusset plate 3 for clamping the center rail 2. These gusset plates 3 have a pressing surface that matches the surface contour of the center rail 2, and one gusset plate 3 is provided on each side of the center rail 2. By providing these gusset plates 3 on the baseplate 4 for clamping the center rail 2, and having gusset plates 3 with pressing surfaces that match the surface contour of the center rail 2, and being located on either side of the center rail 2, they ensure that the center rail 2 maintains a secure lateral positioning and close fit during the switching process. These gusset plates 3 effectively prevent lateral displacement or loosening of the center rail 2 during movement, ensuring a close fit between the center rail 2 and the wing rail 1, and avoiding offset or misalignment during track switching.

[0037] The cross-sections of both ends of the rotating shaft 71 are hexagonal, and the shapes of the first and second rotating shaft 71 mounting grooves match the shapes of the ends of the rotating shaft 71 to limit the rotation of the rotating shaft 71. The hexagonal cross-section design at both ends of the rotating shaft 71, and the shapes of the first and second rotating shaft 71 mounting grooves match the hexagonal shapes of the ends of the rotating shaft 71, mainly functioning to limit the rotation of the rotating shaft 71 through geometric matching. Specifically, this matching structure can effectively prevent the rotating shaft 71 from unnecessary rotation or loosening during the conversion process of the center rail 2, ensuring that the rotating shaft 71 remains fixed to the table plate 4 and the bottom plate 5, thereby ensuring the stability of the entire rotating connection structure 7.

[0038] Reference Figure 5 , the state is static, at this time the heart rail 2 is in contact with the right wing rail 1, when the movable heart rail 2 frog needs to guide the train into the other side of the line, that is, the heart rail 2 needs to be in contact with the left wing rail 1, at this time, due to the external traction, the heart rail 2 is subjected to an external force to the left, and the heart rail 2 has an acceleration to the left. Due to the structure of this device, the heart rail 2 and the platform 4 are an integrated structure, and the platform 4 also has an acceleration to the left; since the rotating rod 72 is a rigid structure, at this time, the side where the rotating rod 72 is connected to the platform 4 has an acceleration to the left, which makes the rotating rod 72 rotate around the bottom plate 5. The fulcrum connected on one side rotates, and the rotating rod 72 lifts the table 4 and the heart rail 2 as a whole. The bottom of the table 4 is no longer in contact with the upper part of the base plate 5, that is, the state. The friction between the original heart rail 2 and the table 4 is converted into the friction between the bearing 73 and the rotating rod 72 in the rotating shaft 71 system. Due to the effect of the bearing 73 and the lubrication, the resistance effect of the conversion process can be significantly reduced. When the heart rail 2 is in close contact with the left wing rail 1, the state is entered. At this time, the movable heart rail 2 frog guides the train to enter the other side track. If a train comes from the other side, the movable heart rail 2 frog heart rail 2 assembly operates according to the above reverse process.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. The movable center rail frog sliding bed plate device is characterized by: It comprises a base plate (5), two wing rails (1) arranged on the base plate (5), and a center rail (2) located between the two wing rails (1); A platform (4) is provided between the heart rail (2) and the base plate (5); the heart rail (2) is fixedly connected to the platform (4); a rotating connection structure (7) is provided between the platform (4) and the base plate (5); the rotating connection structure (7) is capable of converting the lateral thrust received by the heart rail (2) into a lateral component force causing the heart rail (2) to move horizontally and a vertical component force causing the heart rail (2) to rise.

2. The movable frog slide bed plate device according to claim 1, characterized in that: The rotating connection structure (7) comprises a vertically arranged rotating shaft (71) and a rotating rod (72). The rotating shaft (71) and the rotating rod (72) are rotatably matched. A rotating shaft (71) is respectively provided at both ends of the rotating shaft (71). One rotating shaft (71) is rotatably matched with the table (4), and the other rotating shaft (71) is rotatably matched with the bottom plate (5). The rotating shaft (71) is arranged along the length direction of the center rail (2).

3. The movable frog slide bed plate device according to claim 2, characterized in that: The platform (4) is provided with a first rotating shaft (71) mounting groove for cooperating with the rotating shaft (71) and a cover plate (8) for supporting the rotating shaft (71); the base plate (5) is provided with a second rotating shaft (71) mounting groove for cooperating with the rotating shaft (71) and a cover plate (8) for supporting the rotating shaft (71).

4. The movable frog slide bed plate device according to claim 3, characterized in that: The rotating rods (72) are arranged in pairs, and each rotating rod (72) is respectively rotatably matched with the two rotating shafts (71).

5. The movable frog slide bed plate device according to claim 4, characterized in that: The platform (4) is provided with a first cover plate (8) mounting groove for accommodating the cover plate (8), so that the cover plate (8) on the platform (4) does not exceed the lower plane of the platform (4); the base plate (5) is provided with a second cover plate (8) mounting groove for accommodating the cover plate (8), so that the cover plate (8) on the base plate (5) does not exceed the upper plane of the base plate (5).

6. The movable frog slide bed plate device according to claim 1, characterized in that: A rubber pad (6) is provided below the bottom plate (5).

7. The movable frog slide bed plate device according to claim 1, characterized in that: The platform (4) is provided with a buckle plate (3) for pressing the center rail (2), and the buckle plate (3) is provided with a buckling surface that matches the surface profile of the center rail (2). One buckle plate (3) is provided on each side of the center rail (2).

8. The movable frog slide bed plate device according to claim 5, characterized in that: The cross sections at both ends of the rotating shaft (71) are hexagonal structures, and the shapes of the first rotating shaft (71) mounting groove and the second rotating shaft (71) mounting groove match the shapes of the ends of the rotating shaft (71) to limit the self-rotation of the rotating shaft (71).

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