A carbon skateboard without edge wrapping

Abstract

The utility model discloses a non-bounded carbon skateboard, comprising: a carbon bar, a carbon fiber net and an aluminum bracket, wherein the bottom surface of the carbon bar is covered with a carbon fiber net, and the carbon fiber net is folded 30° to 90° and connected to the side of the carbon bar, so as to realize the connection of the carbon fiber net and the carbon bar to form a whole; the aluminum bracket is bonded to the bottom of the carbon fiber net, and the aluminum bracket adopts a "concave"-shaped structure with bounded edges on both sides and no bounded edges in the middle, and the non-bounded portion of the aluminum bracket corresponds to the wear portion in the middle of the carbon bar. The utility model has the characteristics of compact structure, simple process, high wear limit and low cost, and solves the problem of low wear limit and easy bonding failure of existing carbon skateboards.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transit pantograph slide boards, and in particular relates to a carbon slide board without edge wrapping. Background Art

[0002] Nowadays, the slide plate takes power from the contact network and transmits power to the rail transit vehicle. It is the core component of the rail transit vehicle. During the operation of the train, the carbon slide plate will inevitably wear out. During normal operation, the temperature of the carbon slide plate is around 50°C. However, when the train leaves the station, the speed and current increase instantly, and the temperature of the slide plate rises sharply, which can easily lead to a sharp increase in wear and adhesion failure. The carbon slide plate falls off the pantograph, causing the contact network to go offline and the train to stop operating. In serious cases, the carbon strip falls onto the track or into the train, affecting the normal operation of the line and causing major safety accidents with disastrous consequences.

[0003] At present, the method to prevent the carbon strip from falling off in the carbon slide is to use aluminum edging of about 5mm on both sides of the carbon strip, fold it upward to contact and clamp it with the carbon slide, and connect the aluminum slot strip and the carbon strip with adhesive. However, this method cannot fundamentally solve the bonding problem, and in order to avoid grinding the aluminum edging and damaging the contact, the carbon slide is generally replaced when it is worn 2-3m above the aluminum edging, which causes waste and greatly increases the operating cost. Utility Model Content

[0004] The technical problem to be solved by the utility model is that, in view of the problem that the existing carbon slide plate has a low wear limit and is prone to bonding failure, the utility model provides a non-edge-wrapped carbon slide plate with a compact structure, simple process, high wear limit and low cost. To achieve the above purpose, the utility model can adopt the following technical solutions:

[0005] A carbon skateboard without edge binding comprises: a carbon bar, a carbon fiber net and an aluminum bracket, wherein the bottom surface of the carbon bar is covered with the carbon fiber net, and the carbon fiber net is folded 30° to 90° and connected to the side of the carbon bar, so as to realize the connection between the carbon fiber net and the carbon bar to form a whole; the aluminum bracket is bonded to the bottom of the carbon fiber net, and the aluminum bracket adopts an "concave" shaped structure with edges on both sides and no edges in the middle, and the portion of the aluminum bracket without edges corresponds to the wear portion in the middle of the carbon bar.

[0006] As a further improvement of the utility model, the carbon strips and the carbon fiber mesh are connected by a transverse relay needle punching process.

[0007] As a further improvement of the utility model, the carbon strips are obtained by obliquely laying carbon fibers and copper mesh.

[0008] As a further improvement of the utility model, the plying direction between the carbon fiber and the copper mesh is obliquely 30° to 45°.

[0009] As a further improvement of the utility model, the mesh width of the carbon fiber is 1 mm to 5 mm.

[0010] As a further improvement of the utility model, the carbon fiber mesh is laid on the bottom surface of the carbon strip at a height of 2 mm to 6 mm, and 2 to 6 layers are laid.

[0011] As a further improvement of the utility model, the carbon fiber mesh and the aluminum bracket are bonded by high temperature resistant conductive silver glue.

[0012] As a further improvement of the utility model, the length of the worn portion on the carbon strip is 0.5 to 0.6 times the total length of the carbon strip.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] The utility model discloses a carbon skateboard without edge binding, by laying multiple layers of carbon fiber mesh on the bottom surface layer of the carbon bar, and folding the carbon fiber mesh by 30° to 90° and connecting it to the side of the carbon bar, so as to realize the connection between the carbon fiber mesh and the carbon bar to form a whole, thereby ensuring that the carbon bar cannot fall off; and utilizing carbon fiber as a protective material, the carbon fiber mesh and the side of the carbon bar are connected by a transverse relay needle punching method, which neither affects the wear range nor ensures the safety of the carbon skateboard during operation; at the same time, an aluminum bracket is bonded to the bottom of the carbon fiber mesh to ensure that the skateboard will not fall off the aluminum bracket during operation; the aluminum bracket adopts an "concave" shaped structure with edge binding on both sides and no edge binding in the middle, and the non-edge binding portion of the aluminum bracket corresponds to the wear portion in the middle of the carbon bar, thereby optimizing the wear height of the carbon bar from the previous 5mm to 6mm from the bottom of the carbon bar to 1mm to 2mm from the bottom, thereby reducing the replacement rate of the carbon skateboard and extending the service life of the carbon skateboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structural principle of a carbon skateboard without edge binding in a specific embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structural principle of the aluminum bracket in a specific embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the carbon strip ply weaving method in a specific embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the weaving method of the carbon fiber mesh in a specific embodiment of the utility model;

[0019] Legend: 1. Carbon bar; 2. Carbon fiber mesh; 3. Aluminum bracket. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0021] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0023] Example

[0024] like Figures 1 to 4 As shown, the non-edge-wrapped carbon skateboard of the present invention comprises: a carbon strip 1, a carbon fiber mesh 2 and an aluminum bracket 3. Figure 4 As shown, the bottom surface of the carbon bar 1 is covered with a carbon fiber mesh 2, and the carbon fiber mesh 2 is folded 30° to 90° and connected to the side of the carbon bar 1, so that the carbon fiber mesh 2 and the carbon bar 1 are connected to form a whole. The aluminum bracket 3 is bonded to the bottom of the carbon fiber mesh 2, as shown in FIG. Figure 3 As shown, the aluminum bracket 3 adopts a "concave"-shaped structure with edging on both sides and no edging in the middle, and the unbounded portion of the aluminum bracket 3 corresponds to the wear portion in the middle of the carbon bar 1. The carbon slide plate of this embodiment has the characteristics of simple structure and simple process, and can improve the wear limit and improve the bonding failure during operation, thereby ensuring the normal use of the subsequent carbon slide plate, extending the service life, reducing the operating cost, and ensuring driving safety.

[0025] In this embodiment, the carbon strip 1 and the carbon fiber net 2 are connected by a transverse relay needle punching process, so that the carbon strip 1 and the carbon fiber net 2 are tightly connected.

[0026] In this embodiment, the carbon strip 1 is obtained by obliquely laying carbon fibers and copper mesh, and the carbon fibers are chopped carbon fibers. Figure 2As shown, the laying direction between the carbon fiber and the copper mesh is inclined at 30° to 45°, which not only improves the wear resistance and wear uniformity, but also prevents the carbon strip 1 from falling off in one piece; the mesh width of the carbon fiber is 1 mm to 5 mm.

[0027] In this embodiment, the carbon fiber mesh 2 is laid on the bottom surface of the carbon bar 1 to a height of 2 mm to 6 mm, and 2 to 6 layers are laid to improve the firmness of the connection between the carbon fiber mesh 2 and the carbon bar 1.

[0028] In this embodiment, the carbon fiber mesh 2 and the aluminum bracket 3 are bonded by high-temperature resistant conductive silver glue. The conductive silver glue can withstand up to 880°C and can effectively prevent high-temperature debonding, thereby avoiding bonding failure of the carbon slide board during operation and ensuring that the carbon strip 1 and the carbon fiber mesh 2 will not fall off the aluminum bracket during operation.

[0029] In this embodiment, the length of the wear part on the carbon strip 1 is 0.5 to 0.6 times the total length of the carbon strip 1, that is, the length of the wear part accounts for 0.5 to 0.6 of the total length of the carbon slide. For example, if the total length of the carbon slide is set to 950 mm to 1050 mm, the length of the middle of the carbon slide without aluminum edging can be set to 500 mm to 650 mm, which not only ensures the overall strength of the carbon slide, but also greatly increases the wear range.

[0030] In this embodiment, multiple layers of carbon fiber mesh 2 are laid on the bottom surface of the carbon bar 1, and the carbon fiber mesh 2 is folded 30° to 90° and connected to the side of the carbon bar 1 to realize the connection between the carbon fiber mesh 2 and the carbon bar 1 to form a whole, so as to ensure that the carbon bar 1 cannot fall off. Carbon fiber is used as a protective material, and the carbon fiber mesh 2 and the side of the carbon bar 1 are connected by a horizontal relay needle punching method, which will not affect the wear range and ensure the safety of the carbon slide board during operation. At the same time, the aluminum bracket 3 is bonded to the bottom of the carbon fiber mesh 2 to ensure that the slide board will not fall off the aluminum bracket 3 during operation. The aluminum bracket 3 adopts an "concave" shaped structure with edging on both sides and no edging in the middle, and the unbound part of the aluminum bracket 3 corresponds to the wear part in the middle of the carbon bar 1, so that the wear height of the carbon bar 1 is optimized from 5mm to 6mm from the bottom of the carbon bar 1 to 1mm to 2mm from the bottom, thereby reducing the replacement rate of the carbon slide board and extending the service life of the carbon slide board.

[0031] Example 2

[0032] The method for preparing the carbon skateboard without edge binding of the utility model is suitable for preparing the carbon skateboard without edge binding in Example 1, and comprises the following steps:

[0033] Step S1, laying 2 to 6 layers of carbon fiber mesh 2 on the bottom surface of the carbon bar 1, and connecting the carbon fiber mesh 2 to the bottom of the carbon bar 1 through a transverse relay needle punching process;

[0034] Step S2, folding the carbon fiber mesh 2 by 30° to 90°, and connecting it to the side of the carbon strip 1 through a transverse relay needle punching process;

[0035] Step S3 , evenly apply 2 mm to 4 mm high temperature resistant conductive silver glue on the aluminum bracket 3 , and bond the bottom of the carbon fiber mesh 2 to the aluminum bracket 3 .

[0036] In step S3 of this embodiment, the edge of the middle part of the aluminum bracket 3 is cut according to the length of the worn part on the carbon strip 1, and then high temperature resistant conductive silver glue is coated on the aluminum bracket 3.

[0037] The carbon slide prepared in this embodiment is installed at the corresponding position on the top of the pantograph during operation. The carbon fiber mesh 2 connected to the side of the carbon bar 1 can not only increase the wear limit, but also help to improve the overall structural strength of the carbon slide, and reduce the replacement rate of the carbon slide. When the carbon slide is impacted, because the carbon bar 1 and the carbon fiber mesh 2 are integrated, the risk of the carbon bar falling off is reduced, the service life of the carbon slide is extended, the operating cost is reduced, and the life and property safety of the driver and passengers is guaranteed.

[0038] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A carbon skateboard without edge binding, characterized in that: include: A carbon bar (1), a carbon fiber net (2) and an aluminum bracket (3), wherein the bottom surface of the carbon bar (1) is covered with the carbon fiber net (2), and the carbon fiber net (2) is folded at 30° to 90° and connected to the side of the carbon bar (1) so as to realize that the carbon fiber net (2) and the carbon bar (1) are connected to form a whole; the aluminum bracket (3) is bonded to the bottom of the carbon fiber net (2), and the aluminum bracket (3) adopts a "concave" shaped structure with edges on both sides and no edges in the middle, and the portion of the aluminum bracket (3) without edges corresponds to the wear portion in the middle of the carbon bar (1).

2. The carbon skateboard without edge binding according to claim 1, characterized in that: The carbon strip (1) and the carbon fiber net (2) are connected by transverse relay needle punching.

3. The carbon skateboard without edge binding according to claim 2, characterized in that: The carbon strip (1) is obtained by obliquely laminating carbon fibers and copper mesh.

4. The carbon skateboard without edge binding according to claim 3, characterized in that: The plying direction between the carbon fiber and the copper mesh is obliquely 30° to 45°.

5. The carbon skateboard without edge binding according to claim 4, characterized in that: The mesh width of the carbon fiber is 1 mm to 5 mm.

6. The carbon skateboard without edge binding according to any one of claims 1 to 5, characterized in that: The carbon fiber mesh (2) is laid on the bottom surface of the carbon strip (1) at a height of 2 mm to 6 mm, and is laid in 2 to 6 layers.

7. The carbon skateboard without edge binding according to any one of claims 1 to 5, characterized in that: The carbon fiber mesh (2) and the aluminum bracket (3) are bonded together by high-temperature resistant conductive silver glue.

8. The carbon skateboard without edge binding according to any one of claims 1 to 5, characterized in that: The length of the worn portion on the carbon strip (1) is 0.5 to 0.6 times the total length of the carbon strip (1).

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