Pantograph head with copper alloy sliding plate

Abstract

The utility model discloses a pantograph head with copper alloy sliding plates, which comprises a pantograph head main body, a sliding plate bracket is arranged on the pantograph head main body, at least two copper alloy sliding plates are arranged on the sliding plate bracket side by side, the copper alloy sliding plates and the sliding plate bracket are fastened through fasteners, and lubricating plates are arranged between adjacent copper alloy sliding plates. The contact net can be simultaneously matched with the copper alloy sliding plate and the lubricating plate to realize current collection. Compared with the prior art, due to the fact that the copper alloy sliding plate and the lubricating plate are arranged on the sliding plate bracket side by side, on one hand, large-bearing current collection of the pantograph head is achieved through the copper alloy sliding plate, on the other hand, the lubricating plate can improve the self-lubricating performance of the pantograph head and a contact network, and the pantograph head has the advantages of being large in current bearing capacity and high in self-lubricating performance.

Description

Technical Field

[0001] The utility model relates to the technical field of pantographs, in particular to a copper alloy slide plate pantograph head. Background Art

[0002] Rail transit vehicles are powered by a pantograph, a key component of which plays a crucial role in current collection stability. Currently, domestic subway projects utilize dual or quad-panel structures, consisting of, for example, a carbon pantograph, auxiliary pantograph, pantograph bracket, bellows airbag spring, and pantograph support. These pantographs utilize a mainstream carbon-based material, primarily composed of an aluminum bracket and carbon strips bonded together.

[0003] Powder metallurgy pantographs offer advantages such as high mechanical strength and excellent electrical conductivity. However, compared to traditional carbon pantographs, powder metallurgy pantographs are subject to greater friction and wear, potentially leading to abnormal wear of the catenary conductors. Ensuring the pantograph's maximum current-carrying capacity while ensuring self-lubrication between the pantograph head and the catenary is a pressing issue. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a copper alloy slide plate pantograph head.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A copper alloy slide plate pantograph bow head includes a bow head body, a slide plate bracket is provided on the bow head body, at least two copper alloy slide plates are arranged side by side on the slide plate bracket, the copper alloy slide plates and the slide plate bracket are fastened by fasteners, and a lubrication plate is provided between adjacent copper alloy slide plates.

[0007] Preferably, the lubricating plate is a carbon plate.

[0008] Preferably, a fastening hole is provided on the copper alloy slide plate, and the fastener comprises a bolt, and the bolt is adapted to the fastening hole.

[0009] Preferably, the copper alloy slide plate is formed by splicing a plurality of first connecting units.

[0010] Preferably, the lubrication plate is bonded to the skateboard bracket.

[0011] Preferably, the joint surfaces of adjacent first connection units are configured as inclined surfaces.

[0012] Preferably, the lubricating plate is formed by splicing a plurality of second connecting units.

[0013] Preferably, the splicing surfaces of adjacent second connecting units are also constructed as inclined surfaces, and the splicing portions of the copper alloy slide plate and the lubricating plate are opposite to each other, and the corresponding splicing surfaces of the first connecting unit and the second connecting unit face opposite directions.

[0014] Preferably, a gasket is provided between the lubrication plate and the skateboard bracket.

[0015] Preferably, a plurality of protrusions are provided on the top surface of the gasket, and the plurality of protrusions are arranged in sequence along the length direction of the skateboard bracket, and a plurality of grooves are provided on the bottom surface of the lubrication plate, and the plurality of protrusions correspond one-to-one to the plurality of grooves, and the protrusions are adapted to the corresponding grooves, and a flow channel is opened in the gasket, and a flow opening is constructed on the flow channel that passes through the protrusions.

[0016] The beneficial effect of this utility model is that the catenary can simultaneously cooperate with the copper alloy slide plate and lubricating plate to achieve current collection. Compared with the existing technology, the utility model arranges the copper alloy slide plate and lubricating plate side by side on the slide plate bracket. On the one hand, it realizes that the bow head can carry a large load of current through the copper alloy slide plate. On the other hand, the lubricating plate can improve the self-lubrication of the bow head and the catenary. The bow head has the advantages of high current carrying capacity and high self-lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment;

[0018] Figure 2 Schematic diagram of the structure of the raised part.

[0019] Figure numerals: 1. bow head body; 2. slide plate bracket; 3. copper alloy slide plate; 4. fastener; 5. lubrication plate; 6. fastening hole; 7. first connecting unit; 8. second connecting unit; 9. gasket; 10. protrusion; 11. groove; 12. flow channel; 13. flow port. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0021] like Figure 1 As shown, a copper alloy slide pantograph head includes a pantograph body 1. The pantograph body 1 can refer to the frame structure of any slide pantograph in the prior art and will not be described in detail in this embodiment. Specifically, the pantograph body 1 is provided with a slide bracket 2 for mounting the slide.

[0022] At least two copper alloy slides 3 are arranged side by side on the slide bracket 2. The copper alloy slides 3 can be formed by powder metallurgy, so the copper alloy slides 3 do not need to be fastened to the slide bracket 2 by bonding. For example, the copper alloy slides 3 may be provided with fastening holes 6, into which fasteners 4, such as bolts, are adapted. In one possible example, the bolts pass through the back of the slide bracket 2 and engage with the fastening holes 6 to secure the copper alloy slides 3 to the slide bracket 2.

[0023] To ensure the self-lubrication of the slides, lubricating plates 5 are placed between adjacent copper alloy slides 3. These plates can be made of solid lubricating materials such as carbon or graphite-based composite materials. In this example, carbon plates are preferred. The current-carrying interaction between the carbon plates and the catenary improves the self-lubrication of the bow head and catenary while also ensuring current carrying capacity.

[0024] In some embodiments, the lubricating plate 5 is fastened to the slide bracket 2 by bonding, and a gasket 9 may be bonded between the lubricating plate 5 and the slide bracket 2. The gasket 9 drives the top surface of the lubricating plate 5 slightly higher than the copper alloy slides 3 on either side, thereby improving the lubrication performance of the slides and the bow head. It should be noted that the wording "higher than" only refers to the fact that the distance between the top surface of the lubricating plate 5 and the slide bracket 2 is greater than the distance between the copper alloy slides 3 and the slide bracket 2 on a microscopic level. For example, the top surface of the lubricating plate 5 can be 0.2 mm higher than the top surface of the copper alloy slide 3. While ensuring lubricity, the contact network can also better connect with the copper alloy slide 3 to carry high current.

[0025] In a possible example, the thickness of the shim 9 may be controlled so that the top surfaces of the lubrication plate 5 and the skateboard bracket 2 have more consistent heights.

[0026] In other embodiments, the copper alloy slide plate 3 and the lubricating plate 5 are both split structures. For example, they can be formed by splicing together a plurality of first connecting units 7 and a plurality of second connecting units, respectively. If the slide plate of the pantograph head becomes worn after long-term operation, the most severely worn spliced units can be conveniently replaced and maintained in batches.

[0027] For example, the joining surfaces of adjacent first connecting units 7 are configured as inclined surfaces, meaning that the joint seam between adjacent first connecting units 7 is inclined relative to the length direction of the skateboard bracket 2. Similarly, the joining surfaces of adjacent second connecting units are also configured as inclined surfaces, and the joints between the two are aligned, the difference being that the joining surfaces of the corresponding first connecting units 7 and second connecting units face opposite directions.

[0028] In the example where only two copper alloy slides 3 and lubricating plates 5 are provided on the slide bracket 2, the seams between the copper alloy slides 3 and the lubricating plates 5 are connected and form a zigzag pattern. As can be appreciated, the beveled seam design makes it less likely that the contact wire will get stuck in the seams when sliding across the slides, thereby ensuring smoother and more reliable contact between the contact wire and the slides.

[0029] like Figure 2 As shown, in some embodiments, a plurality of protrusions 10 are provided on the top of the adapter gasket 9, and the protrusions 10 are arranged in sequence along the length of the slide bracket 2. For example, the protrusions 10 can be formed into a wave shape. The bottom surface of the lubricating plate 5 is provided with a plurality of grooves 11, and the grooves 11 correspond one-to-one with the protrusions 10. During bonding, the snap-fitting engagement of the protrusions 10 within the grooves 11 increases the bonding area between the gasket 9 and the lubricating plate 5, thereby enhancing the bonding strength. Furthermore, the abutment of the protrusions 10 against the lubricating plate 5 prevents the lubricating plate 5 from laterally dislodging from between adjacent copper alloy slides 3, further improving the structural reliability of the bow head.

[0030] In a more preferred embodiment, a flow channel 12 can be constructed in the gasket 9, and a flow opening 13 penetrating the raised portion 10 can be constructed in the flow channel 12. During the bonding operation, glue can be applied to the bonding surface of the gasket 9 and the lubricating plate 5 before the two are bonded. At this time, glue can be injected into the flow channel 12 so that the glue enters the closed raised portion 10 and groove 11 through the flow opening 13. This ensures a sufficient amount of glue applied and ensures the bonding strength of the lubricating plate 5.

[0031] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A copper alloy slide pantograph head, comprising a pantograph body (1), on which a slide bracket (2) is provided, characterized in that: At least two copper alloy slides (3) are arranged side by side on the slide bracket (2); the copper alloy slides (3) and the slide bracket (2) are fastened via fasteners (4); and a lubricating plate (5) is provided between adjacent copper alloy slides (3).

2. The copper alloy slide plate pantograph head according to claim 1 is characterized in that: The lubricating plate (5) is a carbon plate.

3. The copper alloy slide plate pantograph head according to claim 1 is characterized in that: The copper alloy slide plate (3) is provided with a fastening hole (6), and the fastener (4) comprises a bolt, and the bolt is adapted to the fastening hole (6).

4. The copper alloy slide plate pantograph head according to claim 1, characterized in that: The copper alloy slide plate (3) is formed by splicing together a plurality of first connecting units (7).

5. The copper alloy slide plate pantograph head according to claim 1 or 2, characterized in that: The lubricating plate (5) is bonded to the skateboard bracket (2).

6. The copper alloy slide plate pantograph head according to claim 4, characterized in that: The joining surfaces of adjacent first connecting units (7) are configured as inclined surfaces.

7. The copper alloy slide plate pantograph head according to claim 6, characterized in that: The lubricating plate (5) is formed by splicing a plurality of second connecting units (8).

8. The copper alloy slide plate pantograph head according to claim 7, characterized in that: The splicing surfaces of adjacent second connecting units are also constructed as inclined surfaces, and the splicing locations of the copper alloy slide plate (3) and the lubricating plate (5) are opposite to each other, while the corresponding splicing surfaces of the first connecting unit (7) and the second connecting unit face opposite directions.

9. The copper alloy slide plate pantograph head according to claim 2, characterized in that: A gasket (9) is provided between the lubricating plate (5) and the skateboard bracket (2).

10. The copper alloy slide plate pantograph head according to claim 9, characterized in that: A plurality of protrusions (10) are provided on the top surface of the gasket (9), and the plurality of protrusions (10) are arranged in sequence along the length direction of the skateboard bracket (2). A plurality of grooves (11) are provided on the bottom surface of the lubricating plate (5), and the plurality of protrusions (10) correspond to the plurality of grooves (11) one by one, and the protrusions (10) are adapted to the corresponding grooves (11). A flow channel (12) is provided in the gasket (9), and a flow opening (13) is constructed on the flow channel (12) and passes through the protrusion (10).

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