Base plate for railway turnout and railway turnout

Abstract

The utility model discloses a base plate for a railway turnout and the railway turnout. Comprising an iron base plate used for supporting a steel rail, a rubber base plate detachably connected with the bottom face of the iron base plate, a switch tie bolt in threaded connection with a switch tie and used for buckling and pressing the iron base plate, and an adjusting sleeve arranged on the switch tie bolt in a sleeving mode and used for keeping the height difference between the switch tie bolt buckling and pressing face and the top face of the switch tie unchanged. First grooves are formed in the vertexes of the bottom face of the iron base plate respectively, first bosses matched with the first grooves are distributed on the top face of the rubber base plate, first bolt holes allowing switch tie bolts to penetrate through are formed in the iron base plate, and second bolt holes corresponding to the first bolt holes are formed in the rubber base plate; transportation and machining among vulcanization plants can be omitted, transportation cost and production cost can be saved, the production period is shortened, the height of a transverse stress point of the switch tie bolt is not changed by selecting the adjusting sleeves of different specifications, the stress condition of the switch tie bolt can be effectively improved, and the service life of the switch tie bolt can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of railway turnouts, and in particular to a tie plate for railway turnouts. In addition, the utility model also relates to a railway turnout including the above-mentioned tie plate for railway turnouts. Background Art

[0002] The existing tie plates for high-speed turnouts in China adopt the structure of integral vulcanized rubber tie plates, which bond the iron tie plate and the rubber pad under the plate into one body through vulcanization technology to improve the stability of the fastener system. Since the integral vulcanization of the tie plate requires a large amount of capital investment, the integral vulcanization is usually produced by professional manufacturers. The turnout company needs to transport the processed iron tie plate to the vulcanization factory for vulcanization, and then transport it back to the turnout company for turnout assembly, increasing the transportation cost twice, thus greatly increasing the production and manufacturing cost. In addition, when the integral vulcanized rubber tie plate is adjusted in height, the lateral stress point of the switch tie bolt is raised accordingly, and the stress state is unfavorable, and the switch tie bolt is prone to fatigue breakage. Summary of the Utility Model

[0003] The utility model provides a tie plate for railway turnouts to solve the technical problems that the existing integral vulcanized rubber tie plate needs to increase the transportation cost twice, which will lengthen the production cycle and increase the manufacturing cost, and when the integral vulcanized rubber tie plate is adjusted in height, the lateral stress point of the switch tie bolt is raised accordingly, and the stress state is unfavorable, and the switch tie bolt is prone to fatigue breakage.

[0004] According to one aspect of the utility model, a tie plate for railway turnouts is provided, including an iron tie plate for supporting the rail, a rubber pad detachably connected to the bottom surface of the iron tie plate, a switch tie bolt screwed to the switch tie for clamping the iron tie plate, and an adjusting sleeve sleeved on the switch tie bolt for keeping the height difference between the clamping surface of the switch tie bolt and the top surface of the switch tie unchanged; first grooves are respectively formed at the vertices of the bottom surface of the iron tie plate, first bosses adapted to the first grooves are arranged on the top surface of the rubber pad, a first bolt hole for passing through the switch tie bolt is formed on the iron tie plate, and a second bolt hole corresponding to the first bolt hole is formed on the rubber pad.

[0005] Further, a second groove is formed in the middle of the bottom surface of the iron tie plate, and a second boss adapted to the second groove is arranged on the top surface of the rubber pad.

[0006] Further, the second groove is circular and / or crescent-shaped.

[0007] Further, the tie plate for railway turnouts further includes a height-adjusting plate disposed between the switch tie and the rubber pad, and the adjusting sleeve is used in combination with the height-adjusting plate to keep the height difference between the clamping surface of the switch tie bolt and the top surface of the switch tie unchanged.

[0008] Further, a third groove is formed on the top surface of the tie plate, and the first bolt hole is formed in the third groove.

[0009] Further, the thickness of the adjusting sleeve is 1-10 mm.

[0010] Further, a spring washer is sleeved on the switch tie bolt, and the spring washer is disposed between the buckling surface of the switch tie bolt and the adjusting sleeve.

[0011] Further, an elastic buckling member for buckling the rail is disposed on the tie plate, and the elastic buckling member includes an iron seat, an elastic strip, a gauge block, a T-shaped bolt and a nut.

[0012] Further, an under-rail rubber pad for supporting the rail is disposed on the tie plate.

[0013] According to another aspect of the present invention, a railway turnout is further provided, which includes the tie plate for railway turnout described above.

[0014] The present invention has the following beneficial effects:

[0015] For the tie plate for railway turnout of the present invention, when in use, first place the rubber pad on the top surface of the switch tie, then place the tie plate on the rubber pad, and make the groove at the bottom of the tie plate and the boss on the rubber pad fit into each other. Sleeve the adjusting sleeve on the switch tie bolt and thread the switch tie bolt with the threaded hole on the switch tie, so as to ensure the relative position of the tie plate and the rubber pad is fixed during operation, and make the tie plate and the rubber pad form a whole. The tie plate and the rubber pad are of a split structure and are closely matched, which can save the transportation and processing in the vulcanization workshop, save the transportation cost and production cost, and shorten the production cycle; when the rubber pad is aged, damaged or the like and affects the use performance, only the rubber pad needs to be replaced, instead of replacing the whole tie plate for railway turnout, which can greatly reduce the maintenance cost; when it is necessary to integrally raise the tie plate and the rubber pad, by selecting different specifications of the adjusting sleeve, the height difference between the buckling surface of the switch tie bolt and the top surface of the switch tie remains unchanged, so as to keep the height of the lateral stress point of the switch tie bolt unchanged, which can effectively improve the stress condition of the switch tie bolt and extend the service life of the switch tie bolt.

[0016] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of a tie plate for railway switches in a preferred embodiment of the present utility model;

[0019] Figure 2 It is the front view of the tie plate in a preferred embodiment of the present utility model;

[0020] Figure 3 It is one of the top views of the tie plate in a preferred embodiment of the present utility model;

[0021] Figure 4 It is one of the front views of the rubber tie plate in a preferred embodiment of the present utility model;

[0022] Figure 5 It is one of the top views of the rubber tie plate in a preferred embodiment of the present utility model;

[0023] Figure 6 It is one of the structural schematic diagrams of the elastic fastening member in a preferred embodiment of the present utility model;

[0024] Figure 7 It is the structural schematic diagram of the cooperation of adjusting sleeves with different specifications and corresponding heightening tie plates in a preferred embodiment of the present utility model;

[0025] Figure 8 It is the second top view of the rubber tie plate in a preferred embodiment of the present utility model;

[0026] Figure 9 It is the second top view of the tie plate in a preferred embodiment of the present utility model.

[0027] Legend Explanation:

[0028] 1. Tie plate; 101. First groove; 102. First bolt hole; 103. Third groove; 104. Second groove; 2. Rubber tie plate; 201. First boss; 202. Second bolt hole; 203. Second boss; 3. Adjusting sleeve; 4. Heightening tie plate; 5. Spring washer; 6. Switch sleeper bolt; 7. Elastic clip; 8. Gauge block; 9. Tie plate seat; 10. Nut; 11. T-bolt; 12. Rail; 13. Under-rail rubber tie plate. Detailed Embodiment

[0029] The following will describe the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0030] As Figures 1 to 5As shown in the figure, the tie plate for railway turnout of this embodiment includes a cast iron tie plate 1 for supporting the rail 12, a rubber tie plate 2 detachably connected to the bottom surface of the cast iron tie plate 1, a switch tie bolt 6 screwed to the switch sleeper for clamping the cast iron tie plate 1, and an adjusting sleeve 3 sleeved on the switch tie bolt 6 for keeping the height difference between the clamping surface of the switch tie bolt 6 and the top surface of the switch sleeper unchanged; first grooves 101 are respectively formed at the vertices of the bottom surface of the cast iron tie plate 1, first bosses 201 adapted to the first grooves 101 are arranged on the top surface of the rubber tie plate 2, a first bolt hole 102 for passing through the switch tie bolt 6 is formed on the cast iron tie plate 1, and a second bolt hole 202 corresponding to the first bolt hole 102 is formed on the rubber tie plate 2.

[0031] When the tie plate for railway turnout of this embodiment is in use, first place the rubber tie plate 2 on the top surface of the switch sleeper, then place the cast iron tie plate 1 on the rubber tie plate 2, and make the grooves 101 at the bottom of the cast iron tie plate 1 and the first bosses 201 on the rubber tie plate 2 be embedded with each other. Sleeve the adjusting sleeve 3 on the switch tie bolt 6 and screw the switch tie bolt 6 to the threaded hole on the switch sleeper, so as to ensure the relative position of the cast iron tie plate 1 and the rubber tie plate 2 is fixed during operation, and make the cast iron tie plate 1 and the rubber tie plate 2 form an integral body. The cast iron tie plate 1 and the rubber tie plate 2 are of a split structure and are closely matched, which can save the transportation and processing in the vulcanization workshop, can save the transportation cost and production cost, and shorten the production cycle; when the rubber tie plate 2 is aged, damaged or the like and affects the use performance, only the rubber tie plate 2 can be replaced without replacing the whole tie plate for railway turnout, which can greatly reduce the maintenance cost; when it is necessary to integrally raise the cast iron tie plate 1 and the rubber tie plate 2, by selecting adjusting sleeves 3 of different specifications, the height difference between the clamping surface (the bottom surface of the bolt head) of the switch tie bolt 6 and the top surface of the switch sleeper is kept unchanged, so as to keep the height of the lateral stress point of the switch tie bolt 6 unchanged, which can effectively improve the stress condition of the switch tie bolt 6 and extend the service life of the switch tie bolt 6. Optionally, both the first grooves 101 and the first bosses 201 are rectangular, with simple structure and convenient processing. Optionally, the sharp corners of the first grooves 101 and the first bosses 201 close to the center of the tie plate for railway turnout are rounded. On the one hand, it can avoid cracking at the sharp corners of the first grooves 101 close to the center of the tie plate for railway turnout; on the other hand, it can reduce the alignment difficulty and avoid the sharp corners of the first bosses 201 being squeezed and damaged during assembly.

[0032] As Figure 8 and Figure 9 shown in the figure, in this embodiment, a second groove 104 is formed in the middle of the bottom surface of the cast iron tie plate 1, and a second boss 203 adapted to the second groove 104 is arranged on the top surface of the rubber tie plate 2. On the one hand, it can avoid the relative movement between the cast iron tie plate 1 and the rubber tie plate 2 first; on the other hand, it can adjust the static stiffness of the rubber tie plate 2 and avoid the deformation of the rubber tie plate 2.

[0033] As Figure 8 and Figure 9As shown, the second groove 104 is circular and crescent-shaped, which is convenient for processing. In this embodiment, two rows of second grooves 104 are arranged. Each row includes one circular second groove 104 and four crescent-shaped second grooves 104. The crescent-shaped second grooves 104 are symmetrically arranged on both sides of the circular second groove 104, and the openings of the crescent-shaped second grooves 104 face the circular second groove 104. It can be understood that the numbers of the circular second grooves 104 and the crescent-shaped second grooves 104 are set according to the length and performance requirements of the backing plate. Optionally, the sharp corners of the crescent-shaped second grooves 104 are all rounded. On the one hand, it can reduce the processing difficulty and avoid cracking at the sharp corners of the crescent-shaped second grooves 104. On the other hand, it can reduce the alignment and matching difficulty and avoid damage to the sharp corners of the second boss 203 during assembly.

[0034] As Figure 6 and Figure 7 shown, in this embodiment, the tie plate for railway switch further includes a height-adjusting plate 4 disposed between the tie sleeper and the rubber tie plate 2, and an adjusting sleeve 3 that is used in combination with the height-adjusting plate 4 to keep the height difference between the clamping surface of the tie bolt 6 and the top surface of the tie sleeper unchanged. When adding a height-adjusting plate 4 with a thickness of a millimeters, the thickness of the selected adjusting sleeve 3 is correspondingly reduced by a millimeters. By combining different specifications of height-adjusting plates 4 and adjusting sleeves 3, the height of the lateral force application point of the tie bolt 6 remains unchanged, and different usage requirements can be met.

[0035] As Figure 2 and Figure 3 shown, in this embodiment, a third groove 103 is formed on the top surface of the base plate 1, and the first bolt hole 102 is formed in the third groove 103. On the one hand, it can reduce the weight of the base plate 1. On the other hand, it can avoid the adjusting sleeve 3 and can cooperate with the adjusting sleeve 3 for a larger range of adjustment, thereby increasing the applicable range of the tie plate for railway switch.

[0036] In this embodiment, the thickness of the adjusting sleeve 3 is 1-10 mm. Optionally, the thickness of the adjusting sleeve 3 is divided into several specifications of 1 mm, 2 mm, 3 mm, 5 mm, and 10 mm. By selecting different specifications of the adjusting sleeve 3 for combination, various height adjustments can be achieved. Optionally, the materials of the adjusting sleeves 3 with thicknesses of 1 mm, 2 mm, and 3 mm are stainless steel. Because the thickness is relatively thin, it is easy to be damaged when using non-metallic materials. The materials of the adjusting sleeves 3 with thicknesses of 5 mm and 10 mm are glass fiber-reinforced polyamide 66, so that the adjusting sleeve 3 has a certain elasticity, which can ensure that the tie bolt 6 remains stable during train operation, reduce vibration, and extend the service life.

[0037] As Figure 6 and Figure 7As shown in the figure, in this embodiment, a spring washer 5 is sleeved on the switch sleeper bolt 6. The spring washer 5 is disposed between the buckling surface of the switch sleeper bolt 6 and the adjusting sleeve 3 to achieve the anti-loosening of the switch sleeper bolt 6 and enhance the stability of the connection.

[0038] As Figure 6 shown in the figure, in this embodiment, elastic buckling members for buckling the rail 12 are disposed on the baseplate 1. The elastic buckling members include iron seats 9, elastic bars 7, gauge blocks 8, T-bolts 11 and nuts 10. The two iron seats 9 are respectively disposed on both sides of the rail 12, and the rail 12 is elastically buckled by the elastic bars 7, gauge blocks 8, nuts 10 and T-bolts 11.

[0039] As Figure 6 shown in the figure, in this embodiment, an under-rail rubber pad 13 for supporting the rail 12 is disposed on the baseplate 1 to reduce the impact and vibration on the track and switch when the train passes.

[0040] A railway switch includes the baseplate for railway switch described above.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pad for railway turnout, characterized in that: It comprises an iron pad (1) for supporting a steel rail, a rubber pad (2) detachably connected to the bottom surface of the iron pad (1), a switch sleeper bolt (6) screwed to the switch sleeper for pressing the iron pad (1), and an adjustment sleeve (3) sleeved on the switch sleeper bolt (6) for maintaining a constant height difference from the pressing surface of the switch sleeper bolt (6) to the top surface of the switch sleeper; The vertices of the bottom surface of the iron pad (1) are respectively provided with first grooves (101), the top surface of the rubber pad (2) is provided with first bosses (201) adapted to the first grooves (101), the iron pad (1) is provided with first bolt holes (102) for passing the switch sleeper bolts (6), and the rubber pad (2) is provided with second bolt holes (202) corresponding to the first bolt holes (102).

2. The railway turnout pad according to claim 1, characterized in that: A second groove (104) is provided in the middle of the bottom surface of the iron pad (1), and a second boss (203) adapted to the second groove (104) is provided on the top surface of the rubber pad (2).

3. The railway turnout pad according to claim 2, characterized in that: The second groove (104) is circular and / or crescent-shaped.

4. The railway turnout pad according to any one of claims 1 to 3, characterized in that: It also includes a height adjustment pad (4) arranged on the switch sleeper and between the rubber pad (2), and the adjustment sleeve (3) is used in conjunction with the height adjustment pad (4) to maintain the height difference between the buckling surface of the switch sleeper bolt (6) and the top surface of the switch sleeper unchanged.

5. The railway turnout pad according to claim 4, characterized in that: A third groove (103) is provided on the top surface of the iron backing plate (1), and the first bolt hole (102) is provided in the third groove (103).

6. The railway turnout pad according to claim 5, characterized in that: The thickness of the adjustment sleeve (3) is 1 to 10 mm.

7. The railway turnout pad according to claim 6, characterized in that: A spring washer (5) is sleeved on the switch tie bolt (6), and the spring washer (5) is arranged between the buckling surface of the switch tie bolt (6) and the adjustment sleeve (3).

8. The railway turnout pad according to claim 1, characterized in that: The iron pad (1) is provided with an elastic clamping piece for clamping the steel rail, and the elastic clamping piece comprises an iron seat (9), elastic bars (7), a gauge block (8), a T-bolt (11) and a nut (10).

9. The railway turnout pad according to claim 1, characterized in that: The iron pad (1) is provided with a rail-under-rail rubber pad (13) for supporting the steel rail.

10. A railway turnout, characterized in that: A railroad turnout pad comprising the railroad turnout pad according to any one of claims 1 to 9.

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