Turnout antifriction slide plate and base plate

Abstract

The utility model discloses a turnout antifriction slide plate and a base plate in the technical field of railway transportation, a movable point rail is fixedly installed on a moving part in a buckling mode, the moving part is installed on a fixed part in a sliding mode, and an antifriction coating is arranged on the face, used for making contact with the fixed part, of the moving part. The sliding friction between the movable point rail and the bottom plate is converted into the sliding friction between the movable part and the fixed part, the friction force borne by the movable point rail in the moving process is effectively reduced, it is guaranteed that the movable point rail can move in place, and the stability, comfort and safety are improved when a vehicle passes by.

Description

Technical Field

[0001] The utility model relates to the technical field of railway transportation, in particular to a turnout anti-friction slide bed plate and a pad. Background Art

[0002] 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. Relying on the movement of 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 into the main line or lateral direction, and improving the driving stability and safety.

[0003] The movable heart rail frog sliding bed structure is an important component of the movable heart rail frog. It not only supports the rail parts and train operation, but also provides a sliding platform for the sliding of the movable heart rail assembly. However, due to the existing movable heart rail frog bottom plate 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 bottom 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 significantly different from the ideal state when there is no friction, resulting in insufficient displacement. The existence of insufficient displacement causes the actual linear shape of the movable heart rail frog to deviate from the theoretical position. If the insufficient displacement is large, it will affect the stability of the vehicle passing through the switch and the comfort of the passengers, and in serious cases, it will affect driving safety.

[0004] Based on this, the utility model designs a turnout anti-friction slide bed plate and a pad to solve the above problems. Utility Model Content

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a turnout anti-friction slide bed plate, used for movably mounting a movable heart rail on a base plate, the slide bed plate comprising a fixed portion, a movable portion and a fastener, the fixed portion being fixedly mounted on the base plate, the movable portion being slidably mounted on the fixed portion, the fastener being arranged on the movable portion for fixing the movable heart rail to the movable portion; a friction-reducing coating is provided on the wall surface of the movable portion that is in contact with the fixed portion.

[0006] As a further solution of the present invention, the top wall of the fixed part is provided with an installation groove for installing the movable part, and the installation groove passes through both ends of the fixed part close to the rail. The spacing between the inner wall surfaces of the installation groove matches the spacing between the two opposite side surfaces of the movable part in the length direction of the rail to limit the moving direction of the movable part.

[0007] As a further solution of the present invention, a guide platform is provided at the bottom of the moving part, and the left-right length of the retracted part is smaller than the left-right length of the moving part.

[0008] As a further solution of the present invention, the mounting groove includes a first layer and a second layer from bottom to top, the spacing between the inner side walls of the second layer is greater than the spacing between the inner side walls of the first layer, the spacing between the two opposite side surfaces of the retracted portion in the length direction of the rail matches the spacing between the inner side walls of the first layer, and the height of the guide platform matches the depth of the first layer, so that the bottom surface of the guide platform contacts the bottom surface of the first layer, and the bottom surface of the movable portion contacts the bottom surface of the second layer.

[0009] As a further solution of the present invention, the top surface of the movable portion is higher than the top surface of the fixed portion.

[0010] As a further solution of the present invention, two fasteners are symmetrically provided about the center of the movable portion, and are respectively used to abut against the left and right sides of the rail bottom of the movable center rail.

[0011] As a further solution of the present invention, a side of the fastener used for contacting with the movable heart rail is a pressing surface, and an inclination angle of the pressing surface is the same as an angle of the bottom side surface of the movable heart rail.

[0012] As a further solution of the present invention, a plurality of mounting holes are provided on the top surface of the movable portion, and through holes penetrating the top and bottom surfaces of the fastener are provided at corresponding positions on the surface of the fastener to fix the movable portion and the fastener by bolts.

[0013] As a further solution of the present invention, the anti-friction coating is a polytetrafluoroethylene coating.

[0014] A turnout pad comprises the above-mentioned turnout anti-friction slide bed plate.

[0015] The utility model has the following beneficial effects:

[0016] The device is implemented by fixing the movable heart rail on the moving part through fasteners, and the moving part is slidably mounted on the fixed part. A friction-reducing coating is provided on the side of the moving part that contacts the fixed part, thereby converting the sliding friction between the movable heart rail and the base plate into sliding friction between the moving part and the fixed part. This effectively reduces the friction force on the movable heart rail during movement, thereby ensuring that the movable heart rail can be moved into place and improving the stability, comfort and safety of vehicles when passing by.

[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 It is a front view schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a structural diagram of the moving part.

[0021] Figure 3 A schematic diagram of the fastener structure.

[0022] Figure 4 It is a structural diagram of the fixed part.

[0023] Legend:

[0024] 1. Wing rail; 2. Movable center rail; 3. Bolt; 4. Fastener; 41. Through hole; 42. Buckling surface; 5. Moving part; 51. Mounting hole; 52. Anti-friction coating; 53. Guide platform; 6. Fixed part; 61. First layer; 62. Second layer; 7. Bottom plate. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-4 The utility model provides a technical solution: a turnout anti-friction slide bed, which is used to movably install a movable heart rail 2 on a base plate 7. The slide bed includes a fixed portion 6, a movable portion 5 and a fastener 4. The fixed portion 6 is fixed on the base plate 7, and the movable portion 5 is slidably installed on the fixed portion 6. The fastener 4 is provided on the movable portion 5 for fixing the movable heart rail 2 to the movable portion 5.

[0027] The integral slide bed is arranged on the bottom plate 7 and is located between the left and right wing rails 1. The fixing portion 6 and the rail 1 are both fixed on the bottom plate 7. The movable heart rail 2 can be moved to fit the left wing rail 1 or the right wing rail 1.

[0028] Specifically, a friction-reducing coating 52 is provided on the wall surface of the movable part 5 that is in contact with the fixed part 6. By arranging the movable heart rail 2 on the movable part 5, the movable part 5 is slidably installed on the fixed part 6, and the side of the movable part 5 that is in contact with the fixed part 6 is provided with the friction-reducing coating 52, so as to reduce the friction force received by the movable heart rail 5 from the fixed part 6 when it moves, and convert the friction force between the movable heart rail 2 and the bottom plate 7 into the friction force between the movable heart rail 2 and the fixed part 6, which can effectively reduce the friction force received by the movable heart rail 2 during movement, ensure that the movable heart rail 2 can be moved into place, and improve the stability, comfort and safety of the vehicle when passing the movable heart rail 2.

[0029] In some examples, the top wall of the fixed portion 6 is provided with an installation groove for installing the movable portion 5. The installation groove passes through both ends of the fixed portion 6 close to the rail 1. The spacing between the inner wall surfaces of the installation groove matches the spacing between the two opposite side surfaces of the movable portion 5 in the length direction of the rail 1 to limit the front and rear position of the movable portion 5, prevent the movable portion 5 from being displaced forward and backward under the action of external force, and improve the movement stability of the movable heart rail 2.

[0030] In this example, a guide platform 53 is provided at the bottom of the moving part 5. The left and right lengths of the guide platform 53 are smaller than the left and right lengths of the moving part 5, ensuring that the moving part 5 will not collide with the bottom of the wing rail 1 on the side during movement, thereby improving the service life of the moving part 5. The bottom surface of the guide platform 53 is also provided with a friction-reducing coating 52.

[0031] In this example, the mounting groove includes a first layer 61 and a second layer 62 from bottom to top, the spacing between the inner side walls of the second layer 62 is greater than the spacing between the inner side walls of the first layer 61, the spacing between the two opposite side surfaces of the guide platform 53 in the length direction of the rail 1 matches the spacing between the inner side walls of the first layer 61, and the height of the guide platform 53 matches the depth of the first layer 61, so that the bottom surface of the guide platform 53 contacts the bottom surface of the first layer 61, and the bottom surface of the moving part 5 contacts the bottom surface of the second layer 62. Since the guide platform 53 is provided on the bottom surface of the moving part 5, the moving part 5 only contacts the bottom surface of the mounting groove through the bottom surface of the guide platform 53. By dividing the mounting groove into the first layer 61 and the second layer 62, the bottom surface of the moving part 5 contacts the bottom surface of the second layer 62, so that the moving part 5 protruding from the bottom surface of the guide platform 53 can also be supported, thereby increasing the contact area between the moving part 5 and the fixed part 6, reducing the wear on the anti-friction coating 52, and improving the service life of the moving part 5 and the guide platform 53.

[0032] In this example, the top surface of the movable part 5 is higher than the top surface of the fixed part 6. When the movable heart rail 2 is installed on the movable part 5, the bottom surface of the movable heart rail 2 will not contact the top surface of the fixed part 6, so as to prevent the movable heart rail 2 from contacting the top surface of the fixed part 6 and generating friction.

[0033] like Figure 3 As shown, the side of the fastener 4 used to abut against the movable heart rail 2 is a pressing surface 42, and the inclination angle of the pressing surface 42 is the same as the angle of the side surface of the bottom of the movable heart rail 2. When the movable heart rail 2 is fixed to the moving part 5 by the fastener 4, the fastener 4 abuts against the side surface of the bottom of the movable heart rail 2 through the pressing surface 42. The inclination angle of the pressing surface 42 is the same as the inclination angle of the side surface of the bottom of the movable heart rail 2, so that the pressing surface 42 can be tightly attached to the side surface of the bottom of the movable heart rail 2, thereby improving the installation stability of the movable heart rail 2.

[0034] like Figure 2-3As shown, a plurality of mounting holes 51 are provided on the top surface of the movable portion 5, and through holes 41 penetrating the top and bottom surfaces of the fastener 4 are provided at corresponding positions on the surface of the fastener 4, so as to fix the movable portion 5 and the fastener 4 by means of bolts 3. The fastener 4 and the movable portion 5 can be detachably installed by passing the bolts 3 through the fastener 4 and the mounting holes 51 and the through holes 41 provided on the movable portion 5. In the subsequent use process, when the movable portion 5 is damaged or the anti-friction coating 52 is severely worn, the movable portion 5 can be replaced, which is more convenient to use.

[0035] Specifically, the anti-friction coating 52 is a polytetrafluoroethylene coating.

[0036] A turnout pad comprises the above-mentioned turnout anti-friction slide bed plate.

[0037] 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. A turnout anti-friction slide bed, used for movably mounting a movable center rail (2) on a base plate (7), characterized in that: The slide bed comprises a fixed portion (6), a movable portion (5) and a fastener (4); the fixed portion (6) is fixedly mounted on a bottom plate (7); the movable portion (5) is slidably mounted on the fixed portion (6); and the fastener (4) is arranged on the movable portion (5) for fixing the movable center rail (2) to the movable portion (5); A friction-reducing coating (52) is provided on the wall surface of the movable part (5) that is in contact with the fixed part (6).

2. The turnout anti-friction slide bed according to claim 1, characterized in that: The top wall of the fixed portion (6) is provided with an installation groove for installing the movable portion (5), the installation groove passes through both ends of the fixed portion (6) close to the wing rail (1), and the spacing between the inner wall surfaces of the installation groove matches the spacing between two opposite side surfaces of the movable portion (5) in the length direction of the wing rail (1) to limit the moving direction of the movable portion (5).

3. The turnout anti-friction slide bed according to claim 2, characterized in that: A guide platform (53) is provided at the bottom of the moving part (5), and the left-right length of the guide platform (53) is smaller than the left-right length of the moving part (5).

4. The turnout anti-friction slide bed according to claim 3, characterized in that: The mounting groove comprises a first layer (61) and a second layer (62) from bottom to top, the spacing between the inner side walls of the second layer (62) is greater than the spacing between the inner side walls of the first layer (61), the spacing between the two opposite side surfaces of the guide platform (53) in the length direction of the wing rail (1) matches the spacing between the inner side walls of the first layer (61), and the height of the guide platform (53) matches the depth of the first layer (61), so that the bottom surface of the guide platform (53) contacts the bottom surface of the first layer (61), and the bottom surface of the moving part (5) contacts the bottom surface of the second layer (62).

5. The turnout anti-friction slide bed according to claim 1, characterized in that: The top surface of the movable portion (5) is higher than the top surface of the fixed portion (6).

6. The turnout anti-friction slide bed according to claim 1, characterized in that: Two fasteners (4) are symmetrically arranged on the left and right sides of the center of the movable portion (5), and are respectively used to abut against the left and right sides of the rail bottom of the movable heart rail (2).

7. The turnout anti-friction slide bed according to claim 1, characterized in that: The side of the fastener (4) used for contacting the movable heart rail (2) is a pressing surface (42), and the inclination angle of the pressing surface (42) is the same as the angle of the bottom side surface of the movable heart rail (2).

8. The turnout anti-friction slide bed according to claim 1, characterized in that: The top surface of the movable portion (5) is provided with a plurality of mounting holes (51), and corresponding positions on the surface of the fastener (4) are provided with through holes (41) penetrating the top and bottom surfaces of the fastener (4) so ​​as to fix the movable portion (5) and the fastener (4) by means of bolts (3).

9. The turnout anti-friction slide bed according to claim 1, characterized in that: The friction-reducing coating (52) is a polytetrafluoroethylene coating.

10. A turnout pad, characterized by: The invention comprises the turnout anti-friction slide bed plate according to any one of claims 1 to 9.

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