Ballastless track slide plate assembly and ballastless track system

Abstract

A ballastless track slide plate assembly and ballastless track system, relating to the railway construction field, include an iron base plate, a rubber base plate, an adjustable height base plate, a composite eccentric sleeve, a first bolt, a first positioning mechanism, a second positioning mechanism, a stock rail, and a switch rail. The iron base plate, rubber base plate, and adjustable height base plate are stacked sequentially. Both the first and second positioning mechanisms are installed on the iron base plate and located on the side of the iron base plate away from the rubber base plate. The first and second positioning mechanisms cooperate to fix the stock rail; the second positioning mechanism supports the switch rail; the composite eccentric sleeve penetrates through the iron base plate and the rubber base plate, and the first bolt passes through the composite eccentric sleeve for fixed connection with the switch sleeper body. This design allows for better connection with the switch sleeper body, reduces modification difficulty and cost, and lowers the risk of bolt breakage.

Description

Technical Field

[0001] This invention relates to the field of railway construction, and more specifically, to a ballastless track slide plate assembly and a ballastless track system. Background Technology Ballastless track is a track structure that replaces the loose gravel track bed with a monolithic concrete or asphalt mixture foundation. It consists of rails, elastic fasteners, track slabs, mortar layers, and other components. It features excellent smoothness, low maintenance, and long service life, making it suitable for high-speed railways with speeds exceeding 250 km / h. Movable-point turnouts eliminate harmful spaces in the frog area, ensuring track continuity, significantly reducing wheel-rail impact, and substantially extending the service life of both the vehicle and track system. This also improves vehicle running quality, allowing trains to pass smoothly and at high speeds through the turnout area.

[0002] The existing turnouts have complex slide plate structures, cumbersome adjustment methods, and difficulty in maintaining the track gauge after adjustment. Summary of the Invention

[0003] The objectives of this invention include, for example, providing a ballastless track slide plate assembly and a ballastless track system, which can be better connected to the turnout sleeper body, reducing the difficulty and cost of modification.

[0004] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a ballastless track slide assembly, comprising: Iron pad, rubber pad, height adjustment pad, composite eccentric sleeve, first bolt, first positioning mechanism, second positioning mechanism, basic rail and switch rail; The iron pad, the rubber pad, and the height adjustment pad are stacked in sequence. The first positioning mechanism and the second positioning mechanism are both installed on the iron pad and located on the side of the iron pad away from the rubber pad. The first positioning mechanism and the second positioning mechanism cooperate to fix the basic rail. The second positioning mechanism carries the tip rail. The composite eccentric sleeve passes through the iron pad and the rubber pad, and the first bolt passes through the composite eccentric sleeve for fixed connection with the turnout sleeper body.

[0005] In an optional embodiment, the iron pad includes a plate body and a load-bearing protrusion. The plate body is provided with a first through hole, and the load-bearing protrusion is provided with a second through hole. The load-bearing protrusion is fixed on the plate body, and the first through hole and the second through hole are connected. The load-bearing protrusion penetrates the rubber pad. The composite eccentric sleeve passes through the first through hole and the second through hole.

[0006] In an optional embodiment, the plate body and the load-bearing protrusion are welded together.

[0007] In an optional embodiment, the composite eccentric sleeve includes an inner bushing and an eccentric outer bushing, the eccentric outer bushing being sleeved and fixed outside the inner bushing, and the eccentric outer bushing passing through the first through hole and the second through hole; the first bolt passing through the inner bushing.

[0008] In an alternative embodiment, the eccentric outer sleeve is injection molded outside the inner liner.

[0009] In an optional embodiment, the end of the composite eccentric sleeve away from the iron pad contacts the height adjustment pad.

[0010] In an optional embodiment, the height adjustment pad is provided with a positioning groove, and the bottom wall of the positioning groove is provided with an avoidance through hole. The composite eccentric sleeve passes through the positioning groove and contacts the bottom wall of the groove; the first bolt passes through the avoidance through hole.

[0011] In an optional embodiment, the first positioning mechanism includes a double-arm clamping spring, a second bolt, and a gauge block. The second bolt is fixedly connected to the iron pad and cooperates with the iron pad to clamp the double-arm clamping spring. The gauge block is installed on the iron pad, and the double-arm clamping spring presses the gauge block tightly onto the bottom of the main rail.

[0012] In an optional embodiment, the second positioning mechanism includes a fixed seat and an elastic clamping bar. The fixed seat is fixedly connected to the iron pad, and the fixed seat and the iron pad cooperate to clamp the elastic clamping bar. The elastic clamping bar and the iron pad cooperate to clamp the bottom of the base rail.

[0013] In a second aspect, the present invention provides a ballastless track system, the ballastless track system comprising: The ballastless track slide assembly described in any of the foregoing embodiments.

[0014] The beneficial effects of the embodiments of the present invention include, for example: In summary, the ballastless track slide plate assembly provided in this embodiment can be connected and fixed to the sleeper body of an existing turnout. During assembly, the iron pad, rubber pad, and height adjustment pad are stacked in sequence, with the height adjustment pad installed on top of the sleeper body. A composite eccentric sleeve is inserted into the iron pad and rubber pad, with the axis of the composite eccentric sleeve coaxial with the axis of the threaded hole. The composite eccentric sleeve can compensate for the radial dimension difference between the iron pad, rubber pad, and height adjustment pad and the threaded hole on the sleeper body, improving the connection firmness. Furthermore, the first bolt passes through the composite eccentric sleeve and is screwed into the threaded hole on the sleeper body, thereby pressing the iron pad, rubber pad, and height adjustment pad tightly onto the sleeper body. The overall structure is simple and easy to assemble. During service, when a train travels on the ballastless track, the impact force generated is transmitted to the first bolt through the composite eccentric sleeve. The first bolt is subjected to balanced force and is not prone to breakage due to lateral shear force, resulting in a long service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the ballastless track slide assembly in this embodiment; Figure 2 for Figure 1 A magnified view of a portion of the image.

[0017] icon: 100-Iron pad; 110-Plate body; 111-First through hole; 120-Load-bearing protrusion; 121-Second through hole; 130-Mounting protrusion; 200-Rubber pad; 210-Alignment through hole; 300-Height adjustment pad; 310-Positioning groove; 320-Alignment through hole; 400-Composite eccentric sleeve; 410-Inner bushing; 420-Eccentric outer sleeve; 500-First bolt; 600-First positioning mechanism; 610-Double-arm clamping spring strip; 620-Second bolt; 630-Gap block; 700-Second positioning mechanism; 710-Fixed seat; 720-Elastic clamping strip; 800-Basic rail; 900-Point rail. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0024] Please refer to Figure 1 and Figure 2This embodiment provides a ballastless track slide plate assembly, including an iron pad 100, a rubber pad 200, a height adjustment pad 300, a composite eccentric sleeve 400, a first bolt 500, a first positioning mechanism 600, a second positioning mechanism 700, a main rail 800, and a switch rail 900. The iron pad 100, rubber pad 200, and height adjustment pad 300 are stacked sequentially. The first positioning mechanism 600 and the second positioning mechanism 700 are both installed on the iron pad 100 and located on the side of the iron pad 100 away from the rubber pad 200. The first positioning mechanism 600 and the second positioning mechanism 700 cooperate to fix the main rail 800. The second positioning mechanism 700 supports the switch rail 900. The composite eccentric sleeve 400 passes through the iron pad 100 and the rubber pad 200, and the first bolt 500 passes through the composite eccentric sleeve 400 for fixed connection with the turnout sleeper body.

[0025] As described above, the installation method of the ballastless track slide plate assembly provided in this embodiment is as follows: The iron pad 100, rubber pad 200, and height adjustment pad 300 are stacked sequentially, with the height adjustment pad 300 installed on top of the turnout sleeper body. A composite eccentric sleeve 400 is inserted into the iron pad 100 and rubber pad 200. The axis of the composite eccentric sleeve 400 is coaxial with the axis of the threaded hole. The composite eccentric sleeve 400 can compensate for the radial dimension difference between the iron pad 100, rubber pad 200, and height adjustment pad 300 and the threaded hole on the turnout sleeper body, improving the connection firmness. Furthermore, the first bolt 500 is passed through the composite eccentric sleeve 400 and screwed into the threaded hole on the turnout sleeper body, thereby pressing the iron pad 100, rubber pad 200, and height adjustment pad 300 onto the turnout sleeper body. The overall structure is simple and easy to assemble. During service, when the train travels on the ballastless track, the impact force generated is transmitted to the first bolt 500 through the composite eccentric sleeve 400. The first bolt 500 is subjected to balanced force and is not easy to break due to lateral shear force, resulting in a long service life.

[0026] Meanwhile, the first positioning mechanism 600 and the second positioning mechanism 700 work together to fix the base rail 800. The switch rail 900 can be installed on the second positioning mechanism 700, supported by the second positioning mechanism 700, and the position of the switch rail 900 can be adjusted relative to the second positioning mechanism 700.

[0027] The following embodiments illustrate the details of the ballastless track slide assembly of this application by way of example.

[0028] Please refer to Figure 1 and Figure 2 In this embodiment, the optional ballastless track slide plate assembly includes an iron pad 100, a rubber pad 200, a height adjustment pad 300, a composite eccentric sleeve 400, a first bolt 500, a first positioning mechanism 600, a second positioning mechanism 700, a base rail 800, and a switch rail 900.

[0029] The iron pad 100 includes a plate body 110, a load-bearing protrusion 120, and a mounting protrusion 130. The plate body 110 can be a rectangular plate made of metal, and a first through hole 111 is provided on the plate body 110. The number of first through holes 111 can be multiple, and the specific number is designed as needed. This embodiment does not impose a specific limitation. The first through hole 111 can be an eccentric hole, which can match the outer contour of the cross-section of the composite eccentric sleeve 400.

[0030] Meanwhile, the data of the load-bearing protrusion 120 and the mounting protrusion 130 are designed as needed, and no specific limitations are imposed in this embodiment. Both the load-bearing protrusion 120 and the mounting protrusion 130 can be made of metal, and both the load-bearing protrusion 120 and the mounting protrusion 130 can be fixed to the plate body 110 by welding. Furthermore, the load-bearing protrusion 120 and the mounting protrusion 130 are distributed on both sides of the plate body 110.

[0031] Furthermore, the cross-section of the load-bearing protrusion 120 can be set to be waist-shaped, and a second through hole 121 is provided on the load-bearing protrusion 120. When the load-bearing protrusion 120 is fixed on the plate body 110, the second through hole 121 on the load-bearing protrusion 120 and the first through hole 111 on the plate body 110 are connected. The shapes of the first through hole 111 and the second through hole 121 can be set to be the same to facilitate the positioning of the composite eccentric sleeve 400.

[0032] It should be understood that in some embodiments, the plate body 110, the load-bearing protrusion 120 and the mounting protrusion 130 can also be fixed in other ways, or can be made directly by integral molding, resulting in high structural strength, strong resistance to deformation and stable load transmission.

[0033] Optionally, the rubber pad 200 is provided with clearance through holes 320210, the shape of which matches the shape of the outer contour of the cross-section of the load-bearing protrusion 120. Furthermore, the number of clearance through holes 320210 is equal to the number of load-bearing protrusions 120. During assembly, the plate body 110 is fitted against the top surface of the rubber pad 200, and each load-bearing protrusion 120 can pass through a corresponding clearance through hole 320210, with the outer peripheral surface of the load-bearing protrusion 120 contacting the hole wall of the clearance through hole 320210.

[0034] Optionally, the height adjustment pad 300 can be made of a non-metallic material, such as rubber, plastic, or polyethylene. The thickness of the height adjustment pad 300 is designed as needed, i.e., determined according to the height increase of the base rail 800. Furthermore, the number of height adjustment pads 300 is not limited to one; it can also be two, etc. The height adjustment pad 300 is provided with a positioning groove 310. The shape of the positioning groove 310 can be consistent with the outer contour of the cross-section of the load-bearing protrusion 120. The number of positioning grooves 310 is designed as needed, and is not specifically limited in this embodiment. Simultaneously, the bottom wall of the positioning groove 310 is provided with a clearance through hole 320. The clearance through hole 320 can be a circular hole, and its diameter is smaller than the lateral dimension of the bottom wall. In this way, the portion of the bottom wall not penetrated by the clearance through hole 320 is an annular surface. After the composite eccentric sleeve 400 passes through the first through hole 111 and the second through hole 121, it can enter the positioning groove 310. The end of the composite eccentric sleeve 400 away from the iron pad 100 contacts the annular surface. When the composite eccentric sleeve 400 is pressed onto the iron pad 100 by the first bolt 500, there is friction between the composite eccentric sleeve 400 and the annular surface, which can offset part of the transverse shear force, reduce the external force on the first bolt 500, and make the first bolt 500 less likely to break or be damaged.

[0035] In this embodiment, optionally, the composite eccentric sleeve 400 includes an inner sleeve 410 and an eccentric outer sleeve 420. The eccentric outer sleeve 420 is sleeved and fixed outside the inner sleeve 410. The two can be fixed together by injection molding, that is, the eccentric outer sleeve 420 is injection molded outside the inner sleeve 410, and the eccentric outer sleeve 420 covers the bottom end and part of the outer peripheral surface of the inner sleeve 410. During assembly, the eccentric outer sleeve 420 passes through the first through hole 111 and the second through hole 121, and the bottom of the eccentric outer sleeve 420 can contact the bottom wall of the positioning groove 310. The first bolt 500 passes through the inner sleeve 410.

[0036] Optionally, the top of the inner bushing 410 is provided with an outward-turned end cap. During the tightening of the first bolt 500, the first bolt 500 can contact the outward-turned end cap, thereby locking the composite eccentric sleeve 400.

[0037] In this embodiment, optionally, the first positioning mechanism 600 includes a double-arm clamping spring strip 610, a second bolt 620, and a gauge block 630. The second bolt 620 is fixedly connected to the iron pad 100 and cooperates with the iron pad 100 to clamp the double-arm clamping spring strip 610. The gauge block 630 is installed on the iron pad 100, and the double-arm clamping spring strip 610 presses the iron pad 100 and the gauge block 630 onto the bottom of the base rail 800.

[0038] Optionally, the second positioning mechanism 700 includes a fixed base 710 and an elastic clamping strip 720. The fixed base 710 and the iron pad 100 can be fixedly connected by welding. The fixed base 710 and the iron pad 100 cooperate to clamp the elastic clamping strip 720, and the elastic clamping strip 720 cooperates with the iron pad 100 to clamp the bottom of the base rail 800. In this way, by pressing the elastic strip 610 and the elastic clamping strip 720 with both arms to clamp the bottom sides of the base rail 800 respectively, the position of the base rail 800 is achieved, and the positioning is stable and reliable.

[0039] The ballastless track slide plate assembly provided in this embodiment has a simple and reasonable structure, is easy to assemble, and during train operation, the impact force is transmitted to the composite eccentric sleeve 400 through the iron pad 100, and then to the first bolt 500 through the composite eccentric sleeve 400. The impact force on the first bolt 500 is dispersed along the axial direction of the first bolt 500, making it less likely for external force to concentrate. The first bolt 500 is not easily broken or damaged, and its use is safe and reliable.

[0040] This embodiment also provides a ballastless track system, including the ballastless track slide plate assembly of the above embodiment, which has advantages such as low assembly difficulty, low assembly cost and low failure rate.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A ballastless track slide assembly, characterized in that, include: Iron pad (100), rubber pad (200), height adjustment pad (300), composite eccentric sleeve (400), first bolt (500), first positioning mechanism (600), second positioning mechanism (700), basic rail (800) and switch rail (900); The iron pad (100), the rubber pad (200), and the height adjustment pad (300) are stacked in sequence. The first positioning mechanism (600) and the second positioning mechanism (700) are both installed on the iron pad (100) and located on the side of the iron pad (100) away from the rubber pad (200). The first positioning mechanism (600) and the second positioning mechanism (700) cooperate to fix the base rail (800). The second positioning mechanism (700) supports the tip rail (900). The composite eccentric sleeve (400) passes through the iron pad (100) and the rubber pad (200), and the first bolt (500) passes through the composite eccentric sleeve (400) for fixed connection with the turnout sleeper body.

2. The ballastless track slide plate assembly according to claim 1, characterized in that: The iron pad (100) includes a plate body (110) and a load-bearing protrusion (120). The plate body (110) is provided with a first through hole (111), and the load-bearing protrusion (120) is provided with a second through hole (121). The load-bearing protrusion (120) is fixed on the plate body (110), and the first through hole (111) and the second through hole (121) are connected. The load-bearing protrusion (120) penetrates the rubber pad (200). The composite eccentric sleeve (400) passes through the first through hole (111) and the second through hole (121).

3. The ballastless track slide plate assembly according to claim 2, characterized in that: The plate body (110) and the load-bearing protrusion (120) are welded and fixed.

4. The ballastless track slide plate assembly according to claim 2, characterized in that: The composite eccentric sleeve (400) includes an inner liner (410) and an eccentric outer sleeve (420). The eccentric outer sleeve (420) is sleeved and fixed outside the inner liner (410). The eccentric outer sleeve (420) passes through the first through hole (111) and the second through hole (121). The first bolt (500) passes through the inner liner (410).

5. The ballastless track slide plate assembly according to claim 4, characterized in that: The eccentric outer sleeve (420) is injection molded outside the inner liner (410).

6. The ballastless track slide assembly according to any one of claims 1-5, characterized in that: The end of the composite eccentric sleeve (400) away from the iron pad (100) contacts the height adjustment pad (300).

7. The ballastless track slide plate assembly according to claim 6, characterized in that: The height adjustment pad (300) is provided with a positioning groove (310), and the bottom wall of the positioning groove (310) is provided with an avoidance through hole. The composite eccentric sleeve (400) passes through the positioning groove (310) and contacts the bottom wall of the groove; the first bolt (500) passes through the avoidance through hole.

8. The ballastless track slide assembly according to any one of claims 1-5, characterized in that: The first positioning mechanism (600) includes a double-arm clamping spring strip (610), a second bolt (620), and a gauge block (630). The second bolt (620) is fixedly connected to the iron pad (100) and cooperates with the iron pad (100) to clamp the double-arm clamping spring strip (610). The gauge block (630) is installed on the iron pad (100), and the double-arm clamping spring strip (610) presses the gauge block (630) tightly onto the bottom of the base rail (800).

9. The ballastless track slide assembly according to any one of claims 1-5, characterized in that: The second positioning mechanism (700) includes a fixed seat (710) and an elastic clamping bar (720). The fixed seat (710) is fixedly connected to the iron pad (100). The fixed seat (710) and the iron pad (100) cooperate to clamp the elastic clamping bar (720). The elastic clamping bar (720) and the iron pad (100) cooperate to clamp the bottom of the base rail (800).

10. A ballastless track system, characterized in that, The ballastless track system includes: The ballastless track slide assembly according to any one of claims 1-9.

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