Joint clamping plate and steel rail assembly

Abstract

The utility model relates to the technical field of railway tracks, and discloses a joint clamping plate and a steel rail component, the joint clamping plate comprises a plate body, a first end part and a second end part, the first end part and the second end part are respectively arranged at the top and the bottom of the plate body, and the plate body comprises a first side surface and a second side surface which are oppositely arranged along a first direction; the first side face and the second side face are both straight, the two sides, in the first direction, of the first end portion protrude out of the first side face and the second side face respectively, the side, in the first direction, of the second end portion is straight and is flush with the first side face, and the other end of the second end portion protrudes relative to the second side face. Wherein the thickness of the portion, protruding out of the second side face, of the first end is equal to the thickness of the portion, protruding out of the second side face, of the second end, the thickness of the plate body in the first direction is defined as X1, the thickness of the first end in the first direction is defined as X2, the thickness of the portion, protruding out of the second side face, of the first end is defined as X3, and the following relational expressions are met: X3 = (0.22-0.25) * X1, and X2 = (1.52-1.68) * X1.

Description

Technical Field

[0001] The utility model relates to the technical field of railway tracks, in particular to a joint splint and a rail assembly. Background Art

[0002] The joint splint of the rail assembly, also known as the "fishplate", is used for the connection part of the rail joint in the railway track project. In order to meet the requirements of bending stiffness, the commonly used rail joint splint in the current track project is a double-headed joint splint. The double-headed joint splint includes a plate body and end heads respectively arranged at the upper and lower ends of the plate body. Both sides of each end head protrude from both sides of the plate body. However, the structure of this joint splint is relatively complex, the processing difficulty is large, and it is easy to come into contact and conduct electricity with the fastener spring clip at the turning position of the rail. In order to reduce the processing difficulty and avoid contact and conduction with the fastener spring clip, there is also a type of joint splint in the prior art. Both sides of this joint splint are straight, so as to leave a certain distance between its outer side and the fastener spring clip to prevent contact and conduction. However, the bending stiffness of this joint splint is relatively low and it is difficult to meet the actual use requirements. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a joint splint and a rail assembly. The joint splint meets the requirements of bending stiffness, does not come into contact with the fastener spring clip and conduct electricity at the turning position of the rail, is convenient for subsequent maintenance of the track structure, and reduces the production and manufacturing difficulty.

[0004] To achieve the above purpose, the utility model provides a joint splint, which includes a plate body, a first end part, and a second end part. The first end part and the second end part are respectively arranged at the top and bottom of the plate body. The plate body includes a first side surface and a second side surface arranged opposite to each other along a first direction. Both the first side surface and the second side surface are straight. Both sides of the first end part along the first direction protrude from the first side surface and the second side surface respectively. One side of the second end part along the first direction is straight and flush with the first side surface, and the other end protrudes relative to the second side surface.

[0005] Wherein, the thickness of the first end part protruding from the second side surface is equal to the thickness of the second end part protruding from the second side surface. Define the thickness of the plate body along the first direction as X1, the thickness of the first end part along the first direction as X2, and the thickness of the first end part protruding from the second side surface as X3. The following relational expressions are satisfied: X3 = (0.22 - 0.25)·X1, X2 = (1.52 - 1.68)·X1.

[0006] Preferably, a plurality of connection holes are arranged at intervals along the extending direction of the plate body. The connection holes penetrate through both sides of the plate body along the first direction, and each connection hole is in a runway shape.

[0007] Furthermore, the top of the first end part and the bottom of the second end part both have inclined planes.

[0008] Furthermore, a portion of the top surface of the first end portion close to the second side surface is convex relative to a portion close to the first side surface.

[0009] Furthermore, the X1 is 29.0 mm to 30.0 mm.

[0010] The utility model also provides a rail assembly, comprising: a rail, wherein the rail comprises a rail head, a rail waist and a rail bottom connected in sequence from top to bottom, wherein the rail head and the rail bottom are respectively arranged at the upper and lower ends of the rail waist, and both protrude from the left and right sides of the rail waist, and the rail is a left-right symmetrical structure; and

[0011] The joint clamps of the utility model are respectively arranged on the left and right sides of the rail waist, and the top surface of the first end is respectively fitted with the bottom surface of the rail head, and the bottom surface of the second end is respectively fitted with the top surface of the rail bottom; the plate body and the rail waist are fixedly connected by bolts.

[0012] Furthermore, the distance between the first side surface and the outer edge of the rail bottom is 25.3 mm to 27.3 mm.

[0013] Furthermore, the rail assembly also includes an insulating block, which is installed on a side of the rail bottom away from the rail waist, and the distance between the first side surface and the insulating block is 11 mm to 13 mm.

[0014] Compared with the prior art, the joint clamping plate of the utility model has the following beneficial effects:

[0015] 1. The joint clamp of the embodiment of the utility model is set to be straight on the side of the bottom away from the rail to prevent the joint clamp from touching the fastener spring bar at the bend during operation; 2. The structure is relatively simple and easy to cast, which simplifies the production process and reduces the production cost; 3. Through the above-mentioned structural improvement and combined with the optimized design of the size of each part, the bending stiffness can be effectively improved and the mechanical properties can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a left side view of the joint clamping plate of the embodiment of the utility model;

[0017] Figure 2 yes Figure 1 Section view along AA;

[0018] Figure 3 It is a schematic diagram of the joint clamp plate of the embodiment of the utility model and the double-headed joint clamp plate in the prior art being installed on the left and right sides of the rail respectively;

[0019] Figure 4 yes Figure 3 A partial enlarged view of

[0020] In the figure, 1 is the first end; 11 is the first inclined surface; 2 is the second end; 21 is the second inclined surface; 3 is the plate body; 31 is the first side surface; 32 is the second side surface; 4 is the connecting hole; 5 is the rail; 6 is the rail head; 7 is the rail web; 8 is the rail base; 9 is the insulating block; 10 is the fastener spring clip. Detailed implementation manners

[0021] The following combines the drawings and embodiments to further describe in detail the detailed implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0023] In the description of the utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] As Figure 1 shown, a joint splint of a preferred embodiment of the embodiment of the present utility model includes a plate body 3, a first end 1, and a second end 2. The first end 1 and the second end 2 are respectively arranged at the top and bottom of the plate body 3. The plate body 3 includes a first side surface 31 and a second side surface 32 arranged opposite to each other along a first direction. Both the first side surface 31 and the second side surface 32 are flat. The two sides of the first end 1 along the first direction respectively protrude from the first side surface 31 and the second side surface 32. One side of the second end 2 along the first direction is flat and flush with the first side surface 31, and the other end protrudes relative to the second side surface 32;

[0025] Among them, the thickness by which the first end portion 1 protrudes from the second side surface 32 is equal to the thickness by which the second end portion 2 protrudes from the second side surface 32. Define the thickness of the plate body 3 in the first direction as X1, the thickness of the first end portion 1 in the first direction as X2, and the thickness by which the first end portion 1 protrudes from the second side surface 32 as X3. The following relational expressions are satisfied: X3 = (0.22 - 0.25)·X1, X2 = (1.52 - 1.68)·X1.

[0026] Exemplarily, in this embodiment, preferably X3 = (0.23 - 0.24)·X1, X2 = (1.5 - 1.6)·X1, where X1 = 29.0 mm to 30.0 mm, X2 = 42.2 mm to 46.7 mm, X3 = 6.8 mm to 7.6 mm. Based on the above solutions: 1. The side of the second end portion 2 of the utility model away from the rail 5 is set to be flat, avoiding the joint splint touching the fastener spring clip 10 at the turning point during operation; 2. The structure is relatively simple, easy to be cast into shape, simplifies the production process, and reduces the production cost; 3. Through the above structural improvement and combined with the optimized design of the dimensions of each part, the bending stiffness can be effectively improved, and its mechanical properties are effectively enhanced.

[0027] Preferably, a plurality of connecting holes 4 are provided at intervals along the extending direction of the plate body 3. The connecting holes 4 penetrate through both sides of the plate body 3 in the first direction, and each connecting hole is in a runway shape. The joint splints arranged on both sides of the rail 5 are fixed to the rail 5 by bolts. A plurality of circular connecting holes are arranged along the extending direction of the rail 5. The circular connecting holes have small openings and do not damage the mechanical properties of the rail 5. If there are processing errors between the plurality of circular connecting holes of the rail, the runway-shaped connecting holes 4 can also be successfully installed on both sides of the rail 5.

[0028] Preferably, the top of the first end portion 1 and the bottom of the second end portion 2 respectively have a first inclined surface 11 and a second inclined surface 21, which fit the radian of the rail 5, increase the stress-bearing area of the joint splint, and improve the mechanical properties of the joint splint.

[0029] Preferably, the part of the top surface of the first end portion 1 close to the second side surface 32 is convex relative to the part close to the first side surface 31, increasing the sectional moment of inertia, being more beneficial for bending resistance, and improving the mechanical properties.

[0030] Preferably, X1 is 29.0 mm to 30.0 mm. Exemplarily, in this embodiment, preferably X1 is 29.2 mm to 29.8 mm. This size of the plate body 3 leaves more sufficient space from the fastener spring clip 10 than the original double-headed joint splint, ensuring that this type of joint splint will not touch the fastener spring clip 10 during the train operation and shaking, which is beneficial for the fastener spring clip 10 to prevent stray current.

[0031] Some embodiments of the present application further provide a rail assembly, comprising: a rail 5, wherein the rail 5 comprises a rail head 6, a rail waist 7 and a rail bottom 8 connected in sequence from top to bottom, and the rail 5 is a bilaterally symmetrical structure; and

[0032] The joint clamps described in any of the above items are respectively arranged on the left and right sides of the rail waist 7 of the rail 5, and the top surface of the first end 1 is respectively fitted with the bottom surface of the rail head 6, and the bottom surface of the second end 2 is respectively fitted with the top surface of the rail bottom 8, and the plate body 3 and the rail waist 7 are fixedly connected by bolts.

[0033] Since the rail assembly is provided with the joint clamping plate, it has all the beneficial effects of the joint clamping plate, which will not be described in detail here.

[0034] In some embodiments, the rail assembly further includes an insulating block 9 and a fastener spring bar 10, which are installed on one side of the rail bottom 8. The insulating block 9 is used to insulate the live rail 5 and the joint clamp, and the two ends of the fastener spring bar 10 connect the insulating block 9 and the rail pad.

[0035] Refer to the attached Figure 4 As shown, the distance between the first side surface 31 and the outer edge of the rail bottom 8 is L 1， L1 is 25.3mm~27.3mm, the distance between the first side surface 31 and the insulating block 9 is L2, and L2 is 11mm~13mm; by further optimizing the relative position relationship between the joint clamp and the rail, and the relative position between the joint clamp and the insulating block, it is possible to avoid the joint clamp from touching the fastener spring bar 10 while ensuring that the fastener spring bar 10 reliably supports the rail.

[0036] Exemplarily, a distance L1 between the first side surface 31 and the outer edge of the rail bottom 8 is 26 mm to 27.3 mm, and a distance L2 between the first side surface 31 and the insulating block 9 is 12.5 mm to 13 mm.

[0037] In summary, the embodiments of the utility model provide a joint clamp and a rail assembly. 1. The joint clamp of the embodiment of the utility model is set to be straight on the bottom side away from the rail to avoid the joint clamp touching the fastener spring bar at the bend during operation; 2. The structure is relatively simple and easy to cast, which simplifies the production process and reduces the production cost; 3. Through the above-mentioned structural improvement and combined with the optimized design of the dimensions of each part, the bending stiffness can be effectively improved, and the mechanical properties can be effectively improved.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A joint splint, characterized in that, The plate comprises a plate body, a first end and a second end, wherein the first end and the second end are respectively arranged at the top and the bottom of the plate body, wherein the plate body comprises a first side surface and a second side surface which are oppositely arranged along a first direction, wherein the first side surface and the second side surface are both straight, wherein both sides of the first end along the first direction protrude from the first side surface and the second side surface respectively, wherein one side of the second end along the first direction is straight and keeps flush with the first side surface, and the other end is protruding relative to the second side surface; Among them, the thickness of the first end protruding from the second side is equal to the thickness of the second end protruding from the second side, and the thickness of the plate along the first direction is defined as X1, the thickness of the first end along the first direction is defined as X2, and the thickness of the first end protruding from the second side is defined as X3, satisfying the following relationship: X3=(0.22~0.25)·X1, X2=(1.52~1.68)·X1.

2. The joint splint according to claim 1, characterized in that, The plate body is provided with a plurality of connection holes at intervals along its extension direction. The connection holes penetrate through two sides of the plate body along the first direction, and each of the connection holes is in a racetrack shape.

3. The joint splint according to claim 2, wherein, The top of the first end portion and the bottom of the second end portion both have slope surfaces.

4. The joint splint according to claim 3, characterized in that, A portion of the top surface of the first end portion close to the second side surface is convex relative to a portion close to the first side surface.

5. The joint splint according to claim 4, characterized in that, The X1 is 29.0 mm to 30.0 mm.

6. A rail assembly, characterized in that, include: A rail and a joint clamp as claimed in any one of claims 1 to 5; The steel rail comprises a rail head, a rail waist and a rail bottom which are sequentially connected from top to bottom, the rail head and the rail bottom are respectively arranged at the upper and lower ends of the rail waist, and both protrude from the left and right sides of the rail waist, and the steel rail is a left-right symmetrical structure; and The joint clamps according to any one of claims 1 to 5 are respectively arranged on the left and right sides of the rail waist, the top surface of the first end portion is respectively in contact with the bottom surface of the rail head, and the bottom surface of the second end portion is respectively in contact with the top surface of the rail bottom; the plate body and the rail waist are fixedly connected by bolts.

7. The rail assembly according to claim 6, characterized in that, The distance between the first side surface and the outer edge of the rail bottom is 25.3 mm to 27.3 mm.

8. The steel rail assembly according to claim 7, characterized in that, It also includes an insulating block, which is installed on a side of the rail bottom away from the rail waist, and the distance between the first side surface and the insulating block is 11 mm to 13 mm.

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