Rail brace slide plate assembly based on composite locking structure

Abstract

The utility model relates to rail transit technology, aims at providing a rail support slide bed plate subassembly based on composite locking structure. Including the bottom plate of fixed installation slide bed platform, the rail support includes the wedge support part and frame type installation part, and the composite locking structure includes the elastic strip, the press block, and is located the iron seat and the installation groove on the bottom plate, the installation groove has the acute angle included angle with the basic rail, and the rail support is with frame type opening and is sleeved in the iron seat, and the prismatic convex is embedded in the installation groove, the press block is sleeved in the iron seat, and the elastic strip is inserted in the iron seat, and the press block and frame type installation part are engaged each other through the gear shape structure. Utilize this design, when the situation that needs to adjust the track spacing appears only needs to take out the elastic strip and moves the rail support along the installation groove to the appropriate position again and can be buckled on the elastic strip, the whole process is simple to operate, and the failure problem of traditional rail support will not appear, the utility model discloses the rail support slide bed plate subassembly integrated wedge friction, gear shape engagement and sliding slot limit three -fold anti -loose mechanism, and the stability is good, and the track spacing is adjusted conveniently.

Description

Technical Field

[0001] This utility model relates to rail transit technology, specifically a rail support slide plate assembly based on a composite locking structure. Background Technology

[0002] The slide plate assembly is a key basic component of the switching section of railway turnouts (especially single turnouts), mainly used to support the switch rail (or movable point rail) and guide the wheels smoothly through the turnout area. It generally includes a base plate, slide platform, rail braces, and locking structure. The base plate is a rectangular plate structure set on the sleeper; the slide platform is integrally formed with the base plate or connected by welding, and supports the switch rail on top; the rail braces and locking structure, through the cooperation of components such as spring clips and adjusting wedges, clamp and fix the stock rail, so that the stock rail, in addition to bearing the vertical pressure of the wheel, can also share the lateral horizontal force of the wheel with the switch rail. The rail braces provide support to resist the lateral force exerted on the stock rail by the vehicle when passing through the turnout. In traditional installation methods, bolts and spring clips are used for fixing (e.g., CN 216585938 U), but this can loosen due to rail vibration after long-term operation. Traditional fixed rail bracing solutions typically rely on elastic washers or double nut structures, which are not only complex in structure but also have a significantly reduced anti-loosening effect as the materials age, requiring frequent inspection and maintenance.

[0003] Another persistent problem is that traditional rail bracing technology can only compact the stock rail, reducing or eliminating X-axis (lateral) displacement or lateral swaying. However, after a period of train operation, wear will occur on the working edges of the track, necessitating gauge adjustment. Otherwise, increased gauge will exacerbate wear between the wheel flange and the track, reducing the lifespan of related components. Traditional rail bracing technology can only increase or decrease the gauge by adding adjusting wedges, often resulting in insufficient tightness even when the wedges are fully engaged, or difficulties in adjusting the installation gap due to excessively high or low clearances. Furthermore, reduced elasticity of the spring clips and loosening of the locking bolts during use can also cause the adjusting wedges to malfunction. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rail support slide plate assembly based on a composite locking structure.

[0005] To solve the technical problem, the solution of this utility model is: A rail support slide plate assembly based on a composite locking structure is provided, including a base plate on which rail supports and a slide table are fixedly mounted opposite each other, the two cooperating to fix a basic rail; the rail support includes a wedge-shaped support part and a frame-shaped mounting part, which are connected and mounted on the base plate by a composite locking structure; wherein... The composite locking structure includes a spring bar, a pressure block, and an iron base and mounting groove on the base plate; The wedge-shaped support portion of the rail brace has an upwardly extending wedge-shaped portion for abutting against the side of the web of the base rail; a recessed portion is provided at the lower edge of the wedge-shaped support portion for pressing against the bottom surface of the base rail; the frame-shaped mounting portion of the rail brace has a frame-shaped opening in the middle and a downwardly extending ridge-shaped protrusion; at least one toothed structure is provided on the upper surface of the frame-shaped mounting portion. The mounting groove on the base plate has an acute angle α with the basic rail. The rail support is fitted onto the iron base with its frame-shaped opening, and the prismatic protrusion is embedded in the mounting groove. The middle part of the pressure block has a frame-shaped opening and is fitted onto the iron base. The elastic strip is inserted into the mounting hole of the iron base, and the pressure block and rail support are sequentially and securely installed on the base plate through elastic deformation. The lower surface of the pressure block has at least one toothed structure, which meshes with the toothed structure on the surface of the frame-shaped mounting part.

[0006] As a further improvement, the mounting groove on the base plate is arranged on the outside of the iron base; correspondingly, the prismatic protrusion of the frame-shaped mounting part is located on the outside of the frame-shaped opening.

[0007] As a further improvement, the pressure block has a shape adapted to the upper surface of the rail support, and its frame-shaped opening has a shape adapted to the cross-section of the iron seat; an arc groove adapted to the shape of the elastic bar is provided on the upper surface of the pressure block for installation and limiting.

[0008] As a further improvement, the iron base has a rectangular cross-section and is fixed to the base plate by welding; the iron base is provided with a transverse through hole or cavity for inserting the mounting end of the spring clip.

[0009] As a further improvement, two toothed structures are arranged in parallel on both sides of the frame-shaped opening of the rail support, and two toothed structures are arranged in parallel on both sides of the frame-shaped opening of the pressure block.

[0010] As a further improvement, the wedge-shaped part of the rail support is in the shape of a truncated pyramid; the outer edge of the wedge-shaped support and the axis of symmetry of the frame-shaped opening in the frame-shaped mounting part have an acute angle α, the angle of which is between 5° and 6°.

[0011] As a further improvement, the iron base has a portal-shaped longitudinal cross-sectional shape.

[0012] As a further improvement, the rail brace is an integral structure comprising a wedge-shaped support and a frame-shaped mounting part, manufactured by casting or milling; or, the wedge-shaped support and the frame-shaped mounting part in the rail brace are manufactured by casting or milling respectively, and the two fit tightly together during installation and are pressed together by the elastic bar and the pressure block.

[0013] As a further improvement, a point rail or a movable center rail is installed on the upper part of the slide table; the inner edge of the slide table has a recessed portion, which, together with the wedge-shaped support portion of the rail support, achieves a stable installation of the basic rail.

[0014] As a further improvement, through holes are provided at both ends of the base plate, and the rail support slide plate assembly is fixedly installed on the sleeper using bolts.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes an installation groove set on the base plate, which is arranged at an angle to the direction of the basic rail. When the basic rail and switch rail are worn or other situations require adjustment of the track gauge, simply remove the spring clip, move the rail support along the installation groove to the appropriate position, and then fasten the spring clip back on. The whole process is simple to operate and will not have the failure problem of traditional rail supports.

[0016] 2. This utility model utilizes the toothed meshing between the pressure block and the rail support to reduce the displacement of the rail support during use. Since the rack is designed to be arranged along the edge of the frame-shaped opening, it is actually at an angle to the direction of the basic rail. Therefore, when the rail support is subjected to force in the X-axis direction, the meshing relationship between the racks, combined with the nested installation method of the iron base, can play a role in locking and counteracting force.

[0017] 3. This utility model utilizes the pressing installation between the pressure block and the rail support, as well as the wedge-shaped structure design of the rail support, to enhance the frictional force between the rail support and the rail web. By using a preferred integrated rail support design, the structural stability of the rail support can be strengthened.

[0018] 4. The rail support fastener structure of the rail support slide plate assembly of this utility model integrates a triple anti-loosening mechanism of wedge friction, tooth meshing and slide groove limiting, and has good stability and convenient track gauge adjustment. It is very suitable for high-speed rail, heavy-haul railway and other scenarios that require strict control of track gauge. Attached Figure Description

[0019] Figure 1 This is a front view of the middle rail support slide plate assembly of this utility model in use.

[0020] Figure 2 for Figure 1 Top view.

[0021] Figure 3 This is a schematic diagram of the base plate.

[0022] Figure 4 for Figure 3 Top view.

[0023] Figure 5 This diagram illustrates the relationship between the rail brace and the main rail.

[0024] Figure 6 This is a top view of the rail support.

[0025] Figure 7 This is a schematic diagram of the structure of the pressure block.

[0026] Figure 8 for Figure 7 A bottom view (used to show its bottom rack).

[0027] Figure 9 This is a schematic diagram (three views) of the elastic bar structure.

[0028] The reference numerals in the figure are: base plate 1; rail support 2; iron base 3; mounting groove 4; wedge support 5; frame mounting part 6; wedge part 7; spring bar 8; pressure block 9; bolt 10; switch rail 11; basic rail 12; slide table 13. Detailed Implementation

[0029] The implementation scheme of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] The rail support slide plate assembly of this utility model can serve as a key basic component of the railway turnout switching section, used to support the switch rail (or movable point rail) and guide the wheels to pass smoothly through the turnout area.

[0031] like Figure 1-4 As shown, the rail support slide plate assembly includes a base plate 1, on which rail supports 2 and slide plates 13 are fixedly mounted opposite each other, and the two cooperate to fix the base rail 12. The rail support 2 includes a wedge-shaped support portion 5 and a frame-shaped mounting portion 6, which are connected and mounted on the base plate 1 by a composite locking structure. The upper part of the slide plate 13 is used to mount the switch rail 11, and the inner edge of the slide plate 13 has a recessed portion, which, together with the wedge-shaped support portion 5 of the rail support 2, achieves a stable installation of the base rail 12. Through holes are provided at both ends of the base plate 1, and bolts 10 are used to fix the rail support slide plate assembly to the sleeper.

[0032] The wedge-shaped support portion 5 and the frame-shaped mounting portion 6 in the rail brace 2 can be manufactured using casting or milling processes, respectively. During installation, the two fit tightly together and are secured by the elastic strip 8 and the pressure block 9. To enhance connection stability, the rail brace 2 is preferably manufactured using casting or milling processes, i.e., the wedge-shaped support portion 5 and the frame-shaped mounting portion 6 form an integral structure (e.g., Figure 5 , Figure 6 (As shown). The wedge-shaped support 5 has an upwardly extending wedge-shaped portion 7 for abutting against the side of the web of the main rail; the wedge-shaped portion 7 may be in the shape of a truncated pyramid.

[0033] To ensure the stable installation of the rail support 2 and prevent displacement during long-term operation, this invention employs a composite locking structure for fixing the rail support 2. This composite locking structure includes a spring clip 8, a pressure block 9, an iron base 3 on the base plate 1, and a mounting groove 4.

[0034] To facilitate the installation of the composite locking structure, this utility model proposes a completely new improved design for the traditional rail brace and base plate structure, specifically including: (1) Improvements to base plate 1 The mounting groove 4 on the base plate 1 is located on the outer side of the iron base 3. The mounting groove 4 and the base rail 12 have an acute angle α between them, which can be selected between 5° and 6°. The mounting groove 4 is used to install the rail support 2. The two work together to prevent the base rail 12 from displacing in the X-axis direction, thus achieving a limiting effect.

[0035] The iron base 3 has a rectangular cross-section and is fixed to the base plate 1 by welding. A transverse through hole or cavity is provided on the iron base 3 for inserting the mounting end of the spring clip 8. Alternatively, the iron base 3 can be designed with a U-shaped longitudinal cross-section. It is understood that the installation direction of the iron base 3 on the base plate 1 should preferably be parallel to the mounting groove 4; this design is more intuitive and conforms to the processing and installation habits of this type of product.

[0036] (2) Improvements to pressing block 9 The pressure block 9 has a shape adapted to the upper surface of the rail support 2, and its width should be able to cover most of the frame-type mounting portion 6 in the rail support 2, as well as a portion of the wedge-shaped support portion 5. The pressure block 9 has a frame-type opening in the middle, which is adapted to the cross-sectional shape of the iron base 3 and fits onto the iron base 3. An arcuate groove adapted to the shape of the elastic bar 8 is provided on the upper surface of the pressure block 9 for installation and positioning. The lower surface of the pressure block 9 has at least one toothed structure.

[0037] (3) Improvements to rail brace 2 A recessed portion is provided at the lower edge of the wedge-shaped support 5 to press against the bottom surface of the base rail 12. The frame-shaped mounting portion 6 of the rail support 2 has a frame-shaped opening in the middle and a downwardly extending prismatic protrusion located outside the frame-shaped opening, the shape and orientation of which are adapted to the mounting groove 4 on the base plate 1. On the upper surface of the frame-shaped mounting portion 6, there is a toothed structure adapted to the pressure block 9. The frame-shaped opening of the rail support 2 is slightly larger than the transverse cross-sectional dimension of the iron base 3, so that the rail support 2 can move appropriately and ensure a certain adjustment margin. To facilitate the limiting installation of the rail support 2 on the base plate 1, the outer edge of the wedge-shaped support 5 and the axis of symmetry of the frame-shaped opening in the frame-shaped mounting portion 6 form an acute angle α; this design is more intuitive and conforms to the processing and installation habits of this type of product.

[0038] (4) As a further alternative: Two toothed structures are arranged in parallel on both sides of the frame-shaped opening of the rail support 2, and two toothed structures are arranged in parallel on both sides of the frame-shaped opening of the pressure block 9.

[0039] (5) During installation, first, fit the frame-shaped opening of the rail support 2 into the iron base 3, and embed its bottom ridge-shaped protrusion into the mounting groove 4. Then, move the rail support 2 slightly in the mounting groove 4 so that its wedge-shaped part 7 can firmly abut against the web of the basic rail 12, generating static friction. Next, nest the pressure block 9 into the iron base 3, and make the lower surface of the pressure block 9 mesh with the toothed structure on the surface of the rail support 2. Finally, insert the spring strip 8 into the mounting hole of the iron base 3, and use its elastic deformation to firmly install the pressure block 9 and the rail support 2 onto the base plate 1 in sequence. The design of the spring strip 8 can comply with the existing standard TB / T 3570-2021. During installation, it only needs to be fitted into the iron base 3. The entire installation and locking process does not require the use of traditional bolt components, so the operation is simple and can improve work efficiency.

[0040] After the train has been running for a period of time, the stock rail 12 and switch rail 11 will gradually wear out or other conditions will arise that require gauge adjustment. At this time, the gauge needs to be adjusted. To adjust, simply remove the spring clip 8, move the rail support 2 along the mounting groove 4 to the appropriate position to ensure the gauge meets the requirements, and then fasten the spring clip 8 back on. The adjustment process is simple and quick, and there will be no loosening.

[0041] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A rail brace slide bed plate assembly based on a composite locking structure, comprising a bottom plate, a rail brace and a slide bed platform are fixedly installed on the surface thereof in opposition, and the two are cooperated with each other for fixedly installing a base rail; characterized in that, The rail support includes a wedge-shaped support portion and a frame-shaped mounting portion, which are connected and mounted on the base plate via a composite locking structure; wherein... The composite locking structure includes a spring bar, a pressure block, and an iron base and mounting groove on the base plate; The wedge-shaped support portion of the rail brace has an upwardly extending wedge-shaped portion for abutting against the side of the web of the base rail; a recessed portion is provided at the lower edge of the wedge-shaped support portion for pressing against the bottom surface of the base rail; the frame-shaped mounting portion of the rail brace has a frame-shaped opening in the middle and a downwardly extending ridge-shaped protrusion; at least one toothed structure is provided on the upper surface of the frame-shaped mounting portion. The mounting groove on the base plate has an acute angle α with the basic rail. The rail support is fitted onto the iron base with its frame-shaped opening, and the prismatic protrusion is embedded in the mounting groove. The middle part of the pressure block has a frame-shaped opening and is fitted onto the iron base. The elastic strip is inserted into the mounting hole of the iron base, and the pressure block and rail support are sequentially and securely installed on the base plate through elastic deformation. The lower surface of the pressure block has at least one toothed structure, which meshes with the toothed structure on the surface of the frame-shaped mounting part.

2. The rail-supported slide plate assembly according to claim 1, characterized in that, The mounting groove on the base plate is arranged on the outside of the iron base; correspondingly, the prismatic protrusion of the frame-type mounting part is located on the outside of the frame-type opening.

3. The rail-supported slide plate assembly according to claim 1, characterized in that, The pressure block has a shape adapted to the upper surface of the rail support, and its frame-shaped opening has a shape adapted to the cross-section of the iron seat; an arc groove adapted to the shape of the elastic bar is provided on the upper surface of the pressure block for installation and limiting.

4. The rail-supported slide plate assembly according to claim 1, characterized in that, The iron base has a rectangular cross-section and is fixed to the base plate by welding; the iron base is provided with a transverse through hole or cavity for inserting the mounting end of the spring clip.

5. The rail-supported slide plate assembly according to claim 1, characterized in that, Two toothed structures are arranged in parallel on both sides of the frame-shaped opening of the rail support, and two toothed structures are arranged in parallel on both sides of the frame-shaped opening of the pressure block.

6. The rail-supported slide plate assembly according to claim 1, characterized in that, The wedge-shaped part of the rail support is in the shape of a quadrangular frustum; the outer edge of the wedge-shaped support part and the axis of symmetry of the frame-shaped opening in the frame-shaped mounting part have an acute angle α, the angle of which is between 5° and 6°.

7. The rail-supported slide plate assembly according to claim 1, characterized in that, The iron base has a portal-shaped longitudinal cross-sectional shape.

8. The rail-supported slide plate assembly according to claim 1, characterized in that, The rail brace is an integral structure comprising a wedge-shaped support and a frame-shaped mounting part, manufactured by casting or milling processes; or, the wedge-shaped support and the frame-shaped mounting part in the rail brace are manufactured by casting or milling processes respectively, and the two fit tightly together during installation and are pressed together by the elastic bar and the pressure block.

9. The rail-supported slide plate assembly according to claim 1, characterized in that, The upper part of the slide table is equipped with a point rail or a movable center rail; the inner edge of the slide table has a recessed part, which, together with the wedge-shaped support part of the rail support, achieves a stable installation of the basic rail.

10. The rail-supported slide plate assembly according to claim 1, characterized in that, Through holes are provided at both ends of the base plate, and the rail support slide plate assembly is fixedly installed on the sleeper using bolts.

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